Entries |
Document | Title | Date |
20080236838 | Tool Trap Assembly and Method - An apparatus ( | 10-02-2008 |
20080236839 | CONTROLLING FLOWS IN A WELL - A technique includes providing equipment in a well and downhole in the well, regulating a ratio of flows provided to the equipment. | 10-02-2008 |
20080245531 | DOWNHOLE DEPLOYMENT VALVES - Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV. | 10-09-2008 |
20080251259 | Safety valve - The safety valve includes a first generally tubular body | 10-16-2008 |
20080251260 | STABILIZING A FLOW ALONG A WELLBORE - A system that is usable with a well includes a closed loop network that is located entirely downhole in the well. The system also includes valves that are located in a wellbore of the well and are interconnected by the closed loop network. Each valve is associated with a different isolated region of the wellbore and is adapted to regulate a flow through the valve based at least in part on a flow condition of the isolated region associated with the valve and a flow condition of each of the other isolated regions. | 10-16-2008 |
20080257557 | Wellbore Control Device - A wellbore control device ( | 10-23-2008 |
20080257558 | Shifting apparatus and method - A device for shifting a sliding sleeve. The sliding sleeve is concentrically positioned within a well, and wherein the well is in communication with a hydrocarbon reservoir. In the most preferred embodiment, the device comprises an outer housing forming an annulus with the well and a power piston slidably disposed within the outer housing. The power piston includes an upper shoulder configured to form an annular chamber and a tubular chamber relative to the outer housing, a lower shoulder configured to form an atmospheric chamber relative to the outer housing. The device further comprises a first latch for preventing upward movement of the power piston, a second latch for preventing downward movement of the power piston, and wherein movement of the power piston shifts the sliding sleeve. | 10-23-2008 |
20080264647 | SHAPE MEMORY MATERIALS FOR DOWNHOLE TOOL APPLICATIONS - A technique utilizes shape memory materials in wellbore applications. Well components are formed with shape memory materials able to transition to a desired state when activated. The well components are moved downhole with the shape memory material in one state. Upon introduction of an activating agent, the automatic transition of the shape memory material is initiated and the well component is changed to a state in which it is able to perform a desired downhole function. | 10-30-2008 |
20080283251 | METHOD AND APPARATUS FOR DROPPING A PUMP DOWN PLUG OR BALL - An improved method and apparatus for dropping a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured valving member with curved and flat portions that alternatively direct fluid flow through a bore or opening in the valving member or around the periphery of the valving member. | 11-20-2008 |
20080302538 | Cemented Open Hole Selective Fracing System - A cemented open hole selective fracing system and method are shown. In the producing zone, an open hole is drilled therein and a production tubing is cemented in place. At preselected locations along the production tubing, the production tubing will have sliding valves located there along. The sliding valves may be selectively opened, and the cement around the sliding valve dissolved. Thereafter, the formation may be fraced immediately adjacent the opened sliding valve. By selectively opening different combinations of sliding valves, fracing can occur in stages with more fracing pressure and more fracing fluid being delivered deeper into the formation. Just as the sliding valves can be selectively opened, the sliding valves can also be selectively closed to protect the production of the well. | 12-11-2008 |
20090008102 | Isolation Valve for Subsurface Safety Valve Line - A valve for a line going to a subsurface safety valve can be blocked off with a valve that is initially held in a closed position. An upper spring pushes collets against a shoulder to keep a seal on a support assembly for the collets within an initial bore in a sealing relation. Application of pressure to the line urges the support assembly to move with respect to the collets and causes the collets to become unsupported. This initial movement of the support assembly is against a second spring that is weaker than the upper spring. The upper spring forces the collapsed collets into a smaller bore while the support assembly is retained against reverse movement at the urging of the second spring by a ratchet assembly. The seal is shifted into a bigger bore to allow flow through the valve and into or beyond the subsurface safety valve. | 01-08-2009 |
20090014185 | Incremental annular choke - An annular choke mechanism is incorporated into a flow path within the outer housing of the sleeve valve to the interior flow ports of the sliding sleeve member. As the sliding sleeve member is moved axially within the housing, the lateral fluid ports of the sliding sleeve member are aligned within particular bore portions so that the size of the annular space between the fluid ports in the housing and the fluid ports in the sleeve is varied. The annular flow area through the annular space governs the rate of fluid flow through the valve. | 01-15-2009 |
20090020292 | FLOW CONTROL DEVICE - A choke that is usable with a well includes an inlet port and an outlet port. The choke also includes pressure drop stages between the inlet port and the outlet port. Each of the pressure drop stages is adapted to create part of an overall pressure differential between the inlet and outlet ports. | 01-22-2009 |
20090050332 | Ball valve - A bearing mounted ball valve ( | 02-26-2009 |
20090056951 | FLUID LOSS CONTROL FLAPPER VALVE - A system for completing a well bore, comprises, a string having a housing having an inner diameter, the housing defining an inner channel, a valve seat having an inner diameter coupled to the housing, a flapper pivotally coupled to the valve seat, the flapper configured to move from a first open position to a second closed position; and a sleeve positioned in the inner channel of the valve seat and configured to retain the flapper in the first open position. The flapper has an arcuate orientation that is generally concentric with the housing when the flapper is in the first open position, the flapper isolates a region of the inner channel of the housing below the flapper from a region of the inner channel of the housing above the flapper when the flapper is in a closed position, and the flapper may move to the second closed position when the sleeve is withdrawn from the inner channel of the valve seat. | 03-05-2009 |
20090056952 | Downhole Tool - A method of actuating a tool in a downhole string comprises utilising a flow restriction, such as a non-return valve, which provides less restriction to fluid flow in the normal direction to induce a reverse fluid pressure differential to permit actuation of the tool. | 03-05-2009 |
20090065216 | Degradable Downhole Check Valve - Composite downhole tools for hydrocarbon production and methods for using same. The downhole tool can include an annular body having a valve assembly disposed therein. The valve assembly can include a first member preventing flow in a first direction through the annular body; a second member preventing flow in a second direction through the annular body; and a shoulder disposed on an inner diameter of the body between the first and second members. The shoulder can have a first end contoured to sealingly engage an outer contour of the first member and a second end contoured to sealingly engage an outer contour of the second member. | 03-12-2009 |
20090065217 | STEP RATCHET MECHANISM - A step ratchet mechanism that allows for the incremental movement of an assembly that may be adapted to incrementally open or close an adjustable orifice. The step ratchet mechanism may be comprised of a modified body lock ring that permits incremental movement along a mandrel in either direction along the mandrel. The step ratchet mechanism may be actuated a designated distance by the application of pressure to the mechanism. The step ratchet mechanism may be ideal for using pressure to drive a downhole multi-position device. The modified body lock ring is adapted to both secure the mechanism at each set position as the mandrel is pumped down as well as allowing the mechanism to ratchet when the mandrel is pumped back. | 03-12-2009 |
20090071657 | Annular Pressure Monitoring During Hydraulic Fracturing - A pressure or flow responsive valve is provided in a hydraulic fracturing assembly so that if the formation sands out during proppant pumping and pressure in the bypass to the annulus around the work string rises, the bypass is closed by the valve to prevent overpressure of lower pressure rated components further uphole from the formation being treated. These components could be large casing or the blowout preventer assembly. | 03-19-2009 |
20090071658 | VALVE - A well tubing valve is described, having a substantially tubular body connected in a tubular string and a rotational valve member having at least one aperture. The valve member, which may be a sleeve having a part spherical surface, is rotationally moveable relative to the body to align and misalign the aperture in the valve member with a port in the body. The valve member is actuable to rotate relative to the body in a single direction, and moves from the open position to a closed position and back by rotation in the same sense. In an alternative embodiment, two such valves members are provided and each valve member is actuable from a common control line to at least three operating positions, to. incrementally adjust flow through the ports. Methods of operation are also described. | 03-19-2009 |
20090078428 | FLOW CONTROL SYSTEMS AND METHODS - Disclosed herein is a device for controlling flow within, e.g., a production well or an injection well. The device consists of a movable flow passage and a stationary variable choke or valve that is sensitive to flow parameters and automatically adjusts itself to provide a predetermined flow rate through the device. | 03-26-2009 |
20090095486 | CIRCULATION CONTROL VALVE AND ASSOCIATED METHOD - A circulation control valve. A method of controlling circulation flow between an interior flow passage of a tubular string and an annulus external to the tubular string in a subterranean well includes the steps of: interconnecting a valve in the tubular string, the valve including at least one opening for providing fluid communication between the interior flow passage and the annulus; applying an increased pressure to the interior flow passage while fluid communication through the opening between the interior flow passage and the annulus is prevented, thereby permitting fluid communication through the opening between the interior flow passage and the annulus; and then applying another increased pressure to the interior flow passage while fluid communication through the opening between the interior flow passage and the annulus is permitted, thereby preventing fluid communication through the opening between the interior flow passage and the annulus. | 04-16-2009 |
20090095487 | FLOW RESTRICTION DEVICE - An inflow control device may include flow control elements along a flow path. The flow control elements may change the inertial direction of the fluid flowing in the flow path. The change in inertial direction occurs at junctures along the flow path. The flow control elements may also be configured to form segmented pressure drops across the flow path. The segmented pressure drops may include a first pressure drop segment and a second pressure drop segment that is different from the first pressure drop segment. The pressure drop segments may be generated by a passage, an orifice or a slot. In embodiments, the plurality of flow control elements may separate the fluid into at least two flow paths. The flow control elements may also be configured to cause an increase in a pressure drop in the flow path as a concentration of water increases in the fluid. | 04-16-2009 |
20090101352 | Water Dissolvable Materials for Activating Inflow Control Devices That Control Flow of Subsurface Fluids - An apparatus for controlling flow of a fluid into a wellbore tubular may include a flow control device controlling the flow of the fluid; and a disintegrating element associated with the flow control device. The flow control device may be actuated when the disintegrating element disintegrates when exposed to the flowing fluid. The disintegrating element may disintegrate upon exposure to water in the fluid. A method for producing fluid from a subterranean formation includes: configuring an element to disintegrate when exposed to a selected fluid; positioning the element in a wellbore; and actuating a flow control device using the element. The element may disintegrate when exposed to water. Actuating the flow control device may restrict a flow of fluid into a wellbore tubular. | 04-23-2009 |
20090101353 | Water Absorbing Materials Used as an In-flow Control Device - A device or system for controlling fluid flow in a well includes a flow restriction member that transitions from a first effective density to a second effective density in response to a change in composition of the flowing fluid. The flow restriction member may increase in effective density as the water cut of the flowing fluid increases and/or disintegrate when exposed to a selected fluid in the flowing fluid. The flow restriction member may be formed of a water-absorbing material and/or a porous material. The pores may be water permeable but not oil permeable. A method for producing fluid from a subterranean formation includes controlling a flow of fluid into a wellbore tubular with a flow restriction member. The method may include reducing a flow of water into the wellbore tubular when a percentage of water in the flowing fluid reaches a predetermined value. | 04-23-2009 |
20090101354 | Water Sensing Devices and Methods Utilizing Same to Control Flow of Subsurface Fluids - An apparatus for controlling fluid flow in a wellbore includes a reactive element that reacts when exposed to a fluid and a flow control device configured to control a flow of the fluid. The flow control device may be actuated by a reaction of the reactive element to the fluid. In embodiments, the reactive element reacts by exhibiting a change in a material property. The reaction of the reactive element may be reversible. In embodiments, the reactive element may be a shape memory polymer. The flow control device may include an actuating element operably coupled to the reactive element. The reaction of the reactive element to a given fluid releases the actuating element to actuate the flow control device. | 04-23-2009 |
20090101355 | Water Sensing Adaptable In-Flow Control Device and Method of Use - A device and system for controlling fluid flow into a wellbore tubular may include a flow path in a production control device and at least one in-flow control element along the flow path. A media in the in-flow control element adjusts a cross-sectional flow area of the flow path by interacting with water. The media may be an inorganic solid, a water swellable polymer, or ion exchange resin beads. A method for controlling a fluid flow into a wellbore tubular may include conveying the fluid via a flow path from the formation into a flow bore of the wellbore; and adjusting a cross-sectional flow area of at least a portion of the flow path using a media that interacts with water. The method may include calibrating the media to permit a predetermined amount of flow across the media after interacts with water. | 04-23-2009 |
20090101356 | DEVICE AND SYSTEM FOR WELL COMPLETION AND CONTROL AND METHOD FOR COMPLETING AND CONTROLLING A WELL - A screen assembly including a tubular having a plurality of openings therein, a screen disposed about the tubular, and a plurality of devices disposed within the plurality of openings, the devices each including a beaded matrix and a housing. A method for completing a wellbore with a sand screen. | 04-23-2009 |
20090101357 | DEVICE AND SYSTEM FOR WELL COMPLETION AND CONTROL AND METHOD FOR COMPLETING AND CONTROLLING A WELL - A tubing component for use in a downhole environment including a tubular having a plurality of openings therein and a plurality of beaded matrixes disposed in the plurality of openings the beaded matrixes being configured to be pluggable in situ in the downhole environment. A method for controlling flow in a wellbore. | 04-23-2009 |
20090114396 | Wellsite measurement and control while producing device - Disclosed is a device, method and system for a measurement while producing (MWP) and flow throttling (FTD) device for placement in a pipe with liquid or gas flowing through it such as an oil or gas well's wellhead, casing, tubing, or horizontal or lateral passage which is responsive to the flow of fluid through it. The MWP/FTD device can create pressure pulses through the production fluid or otherwise send signals to provide bit data that are read and analyzed at the wellhead or externally thru wireless communications. The data analysis provides information regarding pressure, fluid flow, and type of fluid/gas flowing primarily within the lateral passages or generally anywhere the MWP/FTD is situated. The device helps identify whether the pipe, lateral or other passage should remain open, closed or restricted. This identification occurs by use of either autonomous control and sensors within the device and/or pre-programmed or wirelessly controlled signals that are transmitted from the well head (or externally) to the MWP/FTD. The MWP/FTD is subsequently urged to regulate the fluid/gas flow. | 05-07-2009 |
20090120647 | FLOW RESTRICTION APPARATUS AND METHODS - In some embodiments, apparatus for restricting the flow of fluid from an earthen formation into at least one interior space of a tubular member includes a passageway fluidly connecting the earthen formation and the at least one interior space of the tubular member. At least one swellable member is expandable into the passageway between the interior space of the tubular member and the earthen formation. | 05-14-2009 |
20090139726 | High Differential Shifting Tool - Systems and methods for opening and/or closing sliding sleeve valves while preventing significant stress upon and damage to the fluid seals that are disposed between the outer housing and the sleeve member elements of the valve. A shifting tool carries a latching device and a fluid closure portion with sacrificial seals. In operations the shifting tool is secured to the sleeve member with the latching device as the closure portion seals off across the fluid flow port of the sleeve member. The shifting tool is then moved to slide the sleeve member between open and closed positions. | 06-04-2009 |
20090139727 | Shape Memory Alloy Actuation - An actuator for use in actuating a valve to control the flow of fluids through the valve, the valve having a valve member movable between positions opening and closing the valve. The actuator comprises one or more shape memory alloy elements each being transformable from a martensitic to an austenitic state by applying heat energy to achieve an austenitic transformation. The one or more shape memory alloy elements are connected to the valve member such that austenitic transformation of the one or more shape memory alloy elements induces movement of the valve member from its closing position to its opening position. | 06-04-2009 |
20090139728 | SCREENED VALVE SYSTEM FOR SELECTIVE WELL STIMULATION AND CONTROL - A well system includes a valve interconnected in a casing string and selectively configurable between first and second configurations via a line external to the casing string, the valve in the first configuration being operable to selectively permit and prevent fluid flow between the casing string exterior and interior, and in the second configuration to selectively filter and prevent fluid flow between the casing string exterior and interior. A method of selectively stimulating a formation includes: positioning a casing string in a wellbore intersecting the formation, the casing string including a valve operable via an external line to selectively permit and prevent fluid flow between the casing string interior and exterior; and stimulating an interval set of the formation by opening the valve, flowing a stimulation fluid from the casing string into the interval set, and then configuring the valve to filter formation fluid which flows into the casing string. | 06-04-2009 |
20090151957 | Zonal Isolation of Telescoping Perforation Apparatus with Memory Based Material - A method and apparatus for isolating formation zones preferably with a memory based material formed into an expansion element, with an outer diameter larger than a borehole, adjacent to a radially telescoping perforation element, converting the memory based expansion element to a stable, smaller, run-in diameter, running it into the borehole, then allowing the memory based material to expand and seal against the borehole wall. Expansion can be enhanced by expanding a mandrel on which the expansion element is formed. The expansion element separates two or more groups of outwardly radially telescoping perforation elements, to isolate formation zones and allow the perforation elements to access the isolated zones. | 06-18-2009 |
20090159292 | LOGGING TOOL DEPLOYMENT SYSTEMS AND METHODS WITHOUT PRESSURE COMPENSATION - Systems and processes are provided for safely facilitating transfer of down-hole devices through an adaptive seal assembly capping a well under pressure. At least one dynamic seal is provided having a size and shape to accommodate varying cross section of an elongated down-hole device, such as a logging tool. The adaptive seal assembly includes a mating flange for coupling its open end to a reversibly sealable wellhead fixture. A pressure is maintained along a wellbore side of the reversible seal, while the aperture is varied according to the varying cross section of the down-hole device as it is translated along the axis. More than one dynamic seals can be actuated in a controlled sequence to apply axial thrust in a preferred direction to the tool. One or more robotic systems can be provided to further expedite manipulation of at least one of the tool and the vessel. | 06-25-2009 |
20090159293 | ISOLATING TUBING - An apparatus | 06-25-2009 |
20090173503 | Delayed Acting Gravel Pack Fluid Loss Valve - A fluid loss valve is disposed in a wash pipe in a gravel packing assembly. It is preferably held open initially and when in the process it is time for the valve to be able to go closed a pulling force is applied that creates relative movement to either close the valve or allow it to close without release of the assembly when under tension. This allows a surface signal that the valve is to be released for closure. The tension is relieved before string movement with the valve can occur. This can happen by slacking off before picking up again or through other time delay features that allow the tension to be removed and a lock to collapse before a lift force is applied for subsequent gravel packing operations. The valve in its closed position acts to eliminate fluid loss when excess gravel is reversed out. | 07-09-2009 |
20090183883 | DOWNHOLE VALVE WITH PASS THROUGH ID - A downhole valve assembly is attached to a drillstring and includes an upper drillstring connection, a lower drillstring connection, and a tubular body comprising a through bore, and further includes a weight activated mechanism configured to close the through bore when the drillstring is lifted. | 07-23-2009 |
20090200038 | HYDRAULIC CONNECTOR APPARATUSES AND METHODS OF USE WITH DOWNHOLE TUBULARS - A hydraulic connector to direct fluids between a lifting assembly and a bore of a downhole tubular includes an engagement assembly configured to selectively extend and retract a seal assembly disposed at a distal end of the hydraulic connector into and from a proximal end of the downhole tubular and a valve assembly operable between an open position and a closed position, wherein the valve assembly is configured to allow the fluids to communicate between the lifting assembly and the downhole tubular through the seal assembly when in the open position, and wherein the valve assembly is configured to prevent fluid communication between the lifting assembly and the downhole tubular when closed position, and a one-way valve to allow fluid communication from the downhole tubular to the lifting assembly. | 08-13-2009 |
20090205833 | Thermal activation mechanisms for use in oilfield applications - A method and apparatus associated with producing hydrocarbons. In one embodiment, the apparatus comprises at least one heating element that is disposed in a chamber with actuator material. A member is also partially coupled to the chamber. The member is configured to extend to a first configuration when the at least one heating element converts at least a portion of the actuator material from a first phase to a second phase and contract to a second configuration when the actuator material converts from the second phase to the first phase. | 08-20-2009 |
20090205834 | Adjustable Flow Control Devices For Use In Hydrocarbon Production - A flow control device may include a body having at least two flow paths configured to convey the fluid. The flow paths may be hydraulically isolated from one another in the body and at least one of the flow paths may be selectively occludable. In certain arrangements, a filtration element may be positioned upstream of one or more of the plurality of in-flow control devices. The flow paths may utilize features such as chamber and openings in order to impose a specified pressure drop on the fluid flowing thereacross. | 08-20-2009 |
20090218103 | Method for Flow Control and Autonomous Valve or Flow Control Device - A method for flow control and a self-adjusting valve or flow control device, in particular useful in a production pipe for producing oil and/or gas from a well in an oil and/or gas reservoir, which production pipe includes a lower drainage pipe preferably being divided into at least two sections each including one or more inflow control devices which communicates the geological production formation with the flow space of the drainage pipe. The fluid flows through an inlet ( | 09-03-2009 |
20090218104 | Electronic completion installation valve - Apparatus and method for a providing a completion assembly for running at an end of a completion string which provides a remotely operable tubing mounted valve used to control the flow of fluids through the tubing in hostile well conditions. The tubing mounted completion assembly has a tubular body for connection in the string below a production packer with a through bore from a first inlet and a first outlet coaxially aligned with the string; a downhole electronic actuating mechanism, a downhole hydraulic pump and a hydraulically operated ball valve member. The actuating mechanism operates the hydraulic pump to provide a hydraulic control line to control movement the valve member from a first position, where the member is open and a through bore is created between the inlet and outlet of the assembly, to a second position, where the valve seals the throughbore and, finally, back to the first position. | 09-03-2009 |
20090229832 | Pressure Compensator for Hydrostatically-Actuated Packers - Devices and methods for operating a tool within a wellbore. A downhole tool includes a tool operation portion having a moveable tool member and a setting portion having a setting piston and setting chamber. A fluid pressure compensation reservoir is in fluid communication with the setting chamber and containing a pressurized fluid which offsets external hydrostatic pressure. | 09-17-2009 |
20090229833 | Injection valve - A valve for use in a downhole tool The valve has an inlet communicating with the work string from which it is anchored. The inlet provides a flow path of a first cross-sectional area. A sealing assembly comprising a spring biased seal cap moves within an outer tubular body to open and close a number of ports arranged through the body. The ports provide a flow path of a combined cross-sectional area greater than the first cross-sectional area and the valve is arranged such that fluid flow through the inlet moves the seal cap to open the valve and create an unimpeded flow path between the inlet and the ports with negligible pressure drop. An embodiment including a shear ring is described to facilitate pressure testing above. A further embodiment includes a load adjuster to assist in closing the valve. The valve can be a high lift injection valve. | 09-17-2009 |
20090242209 | SAFETY VALVE TORSIONAL SPRING ASSEMBLY AND METHOD - A safety valve assembly comprises a valve body, a flapper mount, flapper and a hinge used to rotate the flapper in an opened or closed position. Torsional pins are mounted adjacent the flapper mount, each having ends which extend into the hinge and terminating adjacent each other at a location along the hinge. Torsional springs are circumferentially mounted around the torsional pins. Tabs extend from the torsional springs and contact an actuation member extending over the top of the flapper. As such, the torque created by the torsional springs is transferred to the actuation member via the tabs, thereby reducing the stress on the torsional springs. | 10-01-2009 |
20090242210 | DOWNHOLE FLUID RECIRCULATION VALVE - A downhole valve for insertion in a production tubing string permits recirculation of fluid pumped into the casing annulus. The valve includes a cylindrical housing defining an opening, an internal mandrel disposed within the housing, defining a central bore and defining an opening, a valve between the housing and the mandrel, wherein said valve opens to allow fluid communication from the mandrel central bore to the annulus space in response to a pressure differential between the mandrel central bore and the annular space, and biasing means for biasing the valve in a closed position. The valve may be set within a completion string by wireline techniques | 10-01-2009 |
20090250222 | REVERSE FLOW IN-FLOW CONTROL DEVICE - A fluid flow control apparatus includes a flow path that conveys the fluid into a wellbore tubular, a first passage formed along the flow path, an annular space receiving the fluid from the first passage, and a second passage receiving fluid from the annular space. The passages may flow the fluid in an axial direction along the flow path. The apparatus may include an enclosure that receives a sleeve in which the passages are formed. The annular space may be formed between the sleeve and the enclosure. The passages may include an inlet that reduces a pressure of the fluid flowing through the inlet. The passages may include a bore and may include parallel conduits. The first and the second passages may convey the fluid in a first axial direction, and the annular space may be configured to convey the fluid in a direction opposite to the first axial direction. | 10-08-2009 |
20090250223 | Ballistically Compatible Backpressure Valve - A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in coiled tubing uphole thereof while simultaneously being compatible with a ballistically actuated tool downhole thereof. The valve may include a housing with an uphole chamber in alignment with the coiled tubing and downhole chamber in alignment with the ballistically actuated tool. A gate mechanism disposed between the uphole and downhole chambers may thus be employed to receive a ballistic actuator from the uphole chamber for dispensing into the downhole chamber without sacrifice to pressure control within the coiled tubing. | 10-08-2009 |
20090250224 | Phase Change Fluid Spring and Method for Use of Same - A phase change fluid spring ( | 10-08-2009 |
20090255685 | MULTI-CYCLE ISOLATION VALVE AND MECHANICAL BARRIER - A method for performing a wellbore-related activity may include positioning a sealing device along the wellbore; conveying a work string into the wellbore; using the work string to perform the activity; extracting the work string out of the wellbore; and shifting the sealing device to a closed position to seal a bore of the wellbore using a portion of the work string. A device that selectively seals or occludes a wellbore tubular may include a sealing device having a first and a second sealing element that seal a bore of the wellbore tubular. The first and second sealing elements may support a pressure applied in different directions. Pulling an engagement sleeve with the work string in an uphole direction may fold the first and second sealing elements into the closed position. The bore may be unsealed by applying a pressure cycle to shift the sealing device. | 10-15-2009 |
20090266555 | SYSTEM AND METHOD FOR CONTROLLING FLOW IN A WELLBORE - A technique enables control over flow in a wellbore with a flow control system. The flow control system combines a flow reduction mechanism with a flow control device, such as a valve. The flow reduction mechanism comprises a closure member which can be selectively moved between an unactuated and actuated position, allowing relatively greater flow through the flow control device in the unactuated position. The flow reduction mechanism actuates prior to or in conjunction with the flow control device to reduce flow and thus reduce the loading forces that would otherwise act against the flow control mechanism upon closure of the flow control device. | 10-29-2009 |
20090266556 | FORMATION ISOLATION VALVE - A valve includes a housing, a valve element that is located in the housing, an operator, a locking device and an interference device. The housing includes an interior surface that has a profile. The operator may be configured to transition the valve element between open and closed states. The locking device is adapted to be selectively extended into the profile. The interference device may be adapted to be selectively extended radially inside the locking device to retain the locking device in the profile, thereby locking the valve element in the open or closed state. | 10-29-2009 |
20090272539 | Mechanical Bi-Directional Isolation Valve - A valve having a sealing surface that is rotated 90 degrees on axial floating hinge assemblies is provided. A sleeve moves into position to protect the valve mechanism when the valve is in an open position. A sleeve locks the valve sealing element in place in either a closed or open position. The valve may be used during drilling of wells to prevent flow into the casing when the drill pipe and bit are raised above the valve. | 11-05-2009 |
20090294132 | APPARATUS AND METHOD FOR RECOVERING FLUIDS FROM A WELL AND/OR INJECTING FLUIDS INTO A WELL - Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described. | 12-03-2009 |
20100006302 | LOCKING ARRANGEMENT TO STORE SETTING FORCES - A locking arrangement to store setting forces including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental setting force holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members. A backlash reduction arrangement including a housing, one or more recesses in the housing, one or more jam members in operable communication with one or more of the recesses, and an incremental holding configuration receivable at the housing and placable in operable communication with one or more of the one or more jam members. The one or more jam members positioned within the housing to assure that at least one of the jam members will engage the incremental holding configuration with substantially no backlash. A method for setting a downhole tool. | 01-14-2010 |
20100025045 | Electric Wireline Insert Safety Valve - Methods and devices for utilizing an electrically-actuated wireline insert safety valve (WLSV) and for delivering power to an electrically actuated WLSV via inductive charging and without the use of wired contact. | 02-04-2010 |
20100044054 | Drill String Control Valves and Methods - Drill string flow control valves and more particularly, drill string flow control valves for prevention of u-tubing of fluid flow in drill strings are provided. Drill string flow control valves may comprise a valve housing, a valve sleeve axially movable within a valve housing from a closed position to an open position, a piston axially movable within said valve housing and bearing against the valve sleeve, a biasing mechanism for biasing the valve sleeve into the closed position, a static pressure port for actuating said piston utilizing internal fluid pressure within said valve and a plurality of dynamic pressure ports for allowing a differential pressure to be exerted on the valve sleeve during dynamic flow conditions. The differential pressure exerted on the valve sleeve may be the result of an upstream pressure and a downstream pressure during fluid flow through said valve. By allowing a differential pressure resulting from a fluid flow to act on the valve sleeve, u-tubing in a drill string can be prevented or substantially reduced. Methods of use are also provided. | 02-25-2010 |
20100051289 | System for Selective Incremental Closing of a Hydraulic Downhole Choking Valve - Systems for operating one or more sliding sleeve valves in an incremental, step-type fashion between open and closed positions, permitting the valve or valves to be choked to progressively smaller flow areas. The systems of the present invention also permit the valve or valves to be fully closed without having to progress through incremental steps. | 03-04-2010 |
20100051290 | Pressure Actuated Piston Type Casing Fill-up Valve and Methods of Use Thereof - The present disclosure describes a method and apparatus for filling casing and/or a casing string and provides for the flow back of such fluids in a wellbore during casing running operations. The tool comprises a piston valve which is automatically pressure actuated. Thus, the valve will open and close without manual and/or outside mechanical intervention. Further, the design and construction of the piston valve helps to substantially reduce erosive wear to the piston valve and its components. | 03-04-2010 |
20100065280 | GAS RESTRICTOR FOR HORIZONTALLY ORIENTED PUMP - An inlet apparatus for a submersible well pump. | 03-18-2010 |
20100065281 | SHOE FOR WELLBORE LINING TUBING - The present invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore lining tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore. | 03-18-2010 |
20100071908 | DOWNHOLE BACKUP SYSTEM AND METHOD - A downhole backup system including, a tubular positionable within a downhole structure such that an annular space exists between the tubular and the downhole structure, and a plurality of wedges that are radially movably positioned within the annular space, each of two opposing ends of the plurality of wedges are configured to completely cover the annular space at all possible radial positions of the plurality of wedges. | 03-25-2010 |
20100084137 | Methods and Equipment to Improve Reliability of Pinpoint Stimulation Operations - Apparatuses and methods for improving the reliability of pinpoint stimulation operations are disclosed. The pinpoint stimulation improvement apparatus includes an elastomeric element and a spring positioned on an inner surface of the elastomeric element. A flow limiter is coupled to the elastomeric element. | 04-08-2010 |
20100084138 | Downhole Ball Mechanism With Enhanced Drift Clearance - A downhole tool including a ball valve having a pivotal ball and providing full drift clearance through a fluid pathway of the valve over a portion of a pivotal range of the ball is described. An internal bore of the ball includes a first opening larger than a second opening, and the internal bore transitions between the first and second openings. The first opening overlays or encompasses an opening formed by a first bore portion over a range of pivot of the ball, and the second opening may be fully encompassed by an opening formed by a second bore portion over a pivotal range when the internal bore is not centrally aligned with the first or second bore portions. | 04-08-2010 |
20100084139 | Downhole Waterflood Regulator - A downhole waterflood regulator installs in a side pocket mandrel to regulate fluid flow in a waterflood completion. The regulator has an internal piston and can have a check dart. The piston and check dart regulate fluid flow within the regulator's housing. Packings on the regulator's housing packoff the mandrel's ports that communicate with a surrounding annulus. When initially installed in the mandrel, a blanking plug on the regulator's latch prevents fluid flow through the regulator so that the regulator acts as a dummy valve and allows operators to set and test packers or perform other operations. To begin the waterflood operation, operators use a slickline to remove the blanking plug disposed in the latch. With the plug removed, fluid communicated from the tubing string can pass through the ported latch and into the regulator where the piston and check dart regulate the fluid flow out to the annulus. | 04-08-2010 |
20100096142 | Gas-Lift Valve and Method of Use - A gas-lift valve comprising an elongated vertically orientated tubular body with inlet ports positioned for communication with the inlet ports of a gas-lift valve mandrel, a valve seat and valve port at the upper end of the valve body, a movable gas charged dome positioned within the body below the valve seat, a valve ball assembly attached to the dome, and a collapsible bellows positioned to move the dome and manipulate the valve ball assembly downward onto and off of the valve seat in response to pressure from said inlet ports of the valve body and pressure on the seat and thereby allow injection gas to flow upward through the valve port to exit at the upper end of the valve body. A tubular latch is provided with a removable plug to provide for pressure testing and completion of the well with only one wireline trip. | 04-22-2010 |
20100108323 | Reliable Sleeve Activation for Multi-Zone Frac Operations Using Continuous Rod and Shifting Tools - An apparatus for opening and closing downhole tools, such as sliding sleeves, includes a first (opening) shifting tool connected to an end of a continuous rod, an intermediate rod connected below the first shifting tool, and a second (closing) shifting tool connected to the end of the intermediate rod. The first tool has a profile for selectively opening sleeves when moved downhole, and the second tool has a profile for selectively closing sleeves when moved uphole. Alternatively, a single tool can couple to the end of the continuous rod and can have the profiles for opening and closing sleeves. When used, the continuous rod and shifting tools are deployed downhole to a series of sliding sleeves on a tool string. Manipulated by the continuous rod and a rig at the surface, the shifting tools are used to successively open and close the sliding sleeves so that successive isolated zones of a formation can be treated with frac fluid. | 05-06-2010 |
20100108324 | Linear Actuation System in the Form of a Ring - A device for use in actuating a valve to control the flow of fluids through a flow tube comprises a stationary ring surrounding the flow tube, the ring having an inner diameter greater than an outer diameter of the flow tube. An interior of the ring and an exterior of the flow tube have complementary screw threads. At least three actuators are equally circumferentially spaced along an exterior of the ring. When activated an actuator induces a screw thread on the interior of the ring to engage a screw thread on the exterior of the flow tube such that the flow tube is moved in an axial direction relative to the ring. | 05-06-2010 |
20100108325 | METHOD AND DEVICE FOR SECURING A WELL - A method and a device for securing a well during sluicing in of a well tool ( | 05-06-2010 |
20100108326 | GAS LIFT VALVE ASSEMBLY - An apparatus that is usable with a well includes a gas lift valve and an isolation member. The gas lift valve includes a valve element that is located between an annulus and a passageway of a tubing. The valve element is adapted to selectively open and close to control fluid communication through the valve element. The isolation member is adapted to in a first state, isolate the valve element from at least one of the annulus and the passageway and in a second state, permit fluid communication between the valve element and the annulus or passageway. | 05-06-2010 |
20100126730 | ON DEMAND ACTUATION SYSTEM - A method of selectively actuating a downhole tool, wherein the downhole tool includes a tubular body with an axial borehole therethrough and at least one component, includes increasing a flow rate of a circulating fluid in the axial borehole of the downhole tool to reach a specified circulating fluid pressure, detecting an increased circulating fluid pressure in the borehole of the tool with at least one sensor, actuating a motor to operate a pump, and sending a fluid to operate a sliding sleeve. The method further includes operating the sleeve disposed in the axial borehole to open an actuation chamber port in response to the increased circulating fluid pressure in the borehole of the tool, thereby filling an actuation chamber with the drilling fluid, and moving the at least one expandable component radially outward. | 05-27-2010 |
20100126731 | APPARATUS AND METHODS TO REMOVE IMPURITIES AT A SENSOR IN A DOWNHOLE TOOL - Apparatus and methods to remove impurities at a sensor in a downhole tool are disclosed. During the testing and/or sampling of formation fluid in a borehole, the downhole tool creates a transient high rate of fluid flow of the formation fluid to remove impurities at the sensor. | 05-27-2010 |
20100132954 | BALL SEAT ASSEMBLY AND METHOD OF CONTROLLING FLUID FLOW THROUGH A HOLLOW BODY - A method of controlling fluid flow through a hollow body, uses a ball seat assembly ( | 06-03-2010 |
20100155079 | Bellows valve - The present invention relates to a valve device comprising an external structure with a longitudinal axis and a valve seat, and a valve body mounted movably inside the external structure. The valve device comprises a first bellows device permitted to be moved in a substantially radial direction, in fluid connection with a first fluid, and hydraulically connected to a second bellows device permitted to be moved in a substantially axial direction. The second bellows device is connected to a first part piston cooperating with a second part piston, thereby giving the second part piston an oppositely directed movement relative to the first part piston, which thereby moves the valve body relative to the valve seat. The invention also relates to a method for operation of a valve device and the use thereof. | 06-24-2010 |
20100175887 | Subsurface Safety Valve Flapper - A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body further forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore. Forces exerted on the flapper body when rotating between an open state and a closed state during use of the safety valve urge at least a portion of the leaf spring into the groove. | 07-15-2010 |
20100175888 | Downhole Device Actuator and Method - An actuator to actuate a device received on a tubular string adjacent the device. The actuator comprises an energy storage member, such as a spring, restrained in a compressed mode between a stop collar and an outer sleeve threadedly received on a threaded portion of a non-magnetic tubular segment. An outer magnet is coupled to the outer sleeve to magnetically interact with an inner magnet coupled to an inner pipe string. The inner pipe string is run into the bore of the tubular string and the outer sleeve to position the inner magnet proximal the outer magnet to form a magnetic clutch. The inner pipe string rotates to transfer torque to the outer sleeve via a magnetic clutch, to rotate and threadedly disengage the outer sleeve from the tubular segment to release energy from the energy storage member to displace the outer sleeve to engage and actuate the device. | 07-15-2010 |
20100186967 | Assembly for Controlled Delivery of Downhole Treatment Fluid - An assembly for delivery of treatment fluid at a target location downhole. The assembly is configured to avoid any substantial loss of treatment fluid in advance of reaching the target location in spite of low well pressure or a potentially excessive depth of the location. The assembly also allows for loading with treatment fluid from a downhole end thereof so as to avoid driving treatment fluid through the entirety of a tubular accommodating the assembly. The assembly may employ a spot valve to enhance filling with treatment fluid along with a backpressure valve coupled to the spot valve on-site so as to avoid premature loss of treatment fluid during a delivery application. | 07-29-2010 |
20100193196 | Valve - Bypass valve comprising a ported housing ( | 08-05-2010 |
20100200243 | METHOD AND DEVICE - A device for use downhole comprises a body housing: a power source arranged to supply power to a driver; and a hydraulic system including a piston sealed in a chamber and an outlet provided at each opposing end of the chamber wherein each outlet is in communication with a respective reservoir, the driver being actuable to drive the piston in a first direction, such that fluid is driven out of the chamber through one outlet and simultaneously fluid is drawn into the chamber through the other outlet at the opposing end. | 08-12-2010 |
20100200244 | METHOD OF AND APPARATUS FOR COMPLETING A WELL - A completion apparatus ( | 08-12-2010 |
20100206578 | Sealing Device and Method for Sealing a Casing - The present invention provides a sealing device for sealing a casing comprising: a housing with an outside diameter, a core inside the housing; at least two sealing segments in slidable engagement with the core to change the outside diameter of the sealing device on at least one position of the sealing device; and at least two wedges in slidable engagement with the core and the sealing segments to seal the sealing device against the casing. | 08-19-2010 |
20100206579 | FAIL AS IS MECHANISM AND METHOD - A technique enables failsafe control over actuators used to actuate downhole tools. The technique may utilize a well system having a tool with an adjustable member. An actuation mechanism serves as a fail-as-is mechanism and works in cooperation with the adjustable member. The actuation member is shiftable upon receiving a predetermined input; however the actuation member does not move the adjustable member upon each shift. Once the actuation member has been shifted the requisite number of times to move the adjustable member to another position, at least one subsequent shift of the actuation member is not able to cause movement of the adjustable member. The result is a fail-as-is technique for ensuring the tool is not inadvertently actuated to another operational position. | 08-19-2010 |
20100212910 | FLUID METERING DEVICE AND METHOD FOR WELL TOOL - A method of actuating a well tool includes the steps of: increasing pressure in a fluid line of a fluid metering device; closing a pilot-operated valve in response to the pressure increasing step; and discharging a predetermined volume of fluid from the metering device in response to the pressure increasing and valve closing steps. A fluid metering device for a well tool includes a piston separating chambers; and a pilot-operated valve which selectively prevents fluid communication between the chambers in response to at least a predetermined pressure being applied to a fluid line of the metering device, and which permits fluid communication through the valve between the chambers in response to pressure in the fluid line being less than the predetermined pressure. A greater pressure may be applied to the fluid line to thereby bypass the metering device and allow fluid to discharge from the line. | 08-26-2010 |
20100212911 | TRIGGERING MECHANISM DISCRIMINATED BY LENGTH DIFFERENCE - A downhole trigger mechanism and method for using the same are provided. The downhole trigger mechanism can include at least two contact points spaced a longitudinal distance from one another. The trigger mechanism can be actuated when the contact points of the trigger mechanism are simultaneously contacted by at least two contact points of an actuator. The contact points of the actuator can be spaced a longitudinal distance from one another. | 08-26-2010 |
20100212912 | Valve - A downhole valve comprises a tubular body and a valve member. The valve member is normally closed and in the closed position may prevent or restrict passage of a working fluid through the body. The valve member is movable to an open position, a first working fluid pressure differential being necessary to move the valve member from the closed position and a lower second working fluid pressure differential being necessary to maintain the valve member in the open position. | 08-26-2010 |
20100224371 | CIRCULATION CONTROL VALVE AND ASSOCIATED METHOD - A method of controlling flow between a flow passage of a tubular string and an annulus includes: constructing a valve having an opening for flow between the passage and annulus; permitting flow through the opening; then preventing flow through the opening in response to applying pressure to the valve; and then mechanically displacing a closure device, thereby allowing flow through the opening. Another method includes applying a pressure differential across a piston of a valve, thereby displacing a closure device; and then displacing the closure device relative to the piston, thereby allowing flow between the passage and the annulus. A valve includes an opening for flow between an interior and exterior of the valve, a closure device for permitting and preventing flow through the opening, and a piston which biases the closure device to displace, the closure device being mechanically displaceable relative to the piston. | 09-09-2010 |
20100230113 | MULTI-STAGE MODULATOR - Methods and systems for pulse generation assembly that includes a plurality of staged valves operably coupled serially in a bottomhole assembly of a wellbore tool. The plurality of staged valves are operated in a substantially synchronized manner, thereby generating a series of pressure pulses. The signal strength of the generated pulse signal is multiplied by the number of staged valves in the series, and the pulse generation assembly of the disclosure is less susceptible to jamming, shock, and erosion. Further, by sequentially stopping at least one stage of the assembly and then synchronously rotating other stages, amplitude modulation is accomplished. | 09-16-2010 |
20100236790 | CONTROL OF WELL TOOLS UTILIZING DOWNHOLE PUMPS - A method of selectively actuating from a remote location multiple downhole well tools includes: selecting one of the well tools for actuation by applying a voltage polarity to a set of conductors in the well, thereby operating a downhole pump connected to the well tool and displacing a piston of the well tool in one direction; and selecting the well tool for actuation by applying an opposite voltage polarity to the set of conductors, thereby operating the downhole pump and displacing the piston in an opposite direction. A system includes multiple electrical conductors in the well; and multiple control devices that control which of the well tools is selected for actuation in response to current flow in a set of the conductors, each of the control devices including at least one downhole pump which applies a pressure differential to an actuator of a respective one of the well tools. | 09-23-2010 |
20100243265 | DRILLING FLUID FLOW DIVERTER - An embodiment of the apparatus includes a housing having a first flow bore and a second flow bore, the first flow bore having a drilling fluid flowing therein, a device disposed in the second flow bore to receive a fluid flow, and a diverter disposed between the first and second flow bores, the diverter having a first position preventing the drilling fluid from flowing into the second flow bore and a second position allowing a portion of the drilling fluid to flow into the second flow bore and through the device. Another embodiment includes a variable second position directing the drilling fluid into the second flow bore at a variable flow rate. A further embodiment includes a drill collar as the housing and a power generation assembly as the device to receive the fluid flow. Embodiments of a method of diverting a fluid flow in a downhole tool include diverting a portion of a first fluid flow to a second flow bore, and further varying a flow rate of the fluid to the second flow bore. | 09-30-2010 |
20100243266 | SYSTEM AND METHOD FOR LONGITUDINAL AND LATERAL JETTING IN A WELLBORE - A system and method for enabling longitudinal and radial drilling in a wellbore is described. The system and method enable an operator to perforate the casing of a wellbore with an under-reamer at the end of a drill string and, without removing the drill string from the wellbore, initiate and complete lateral jetting of the wellbore into the surrounding formation. The system utilizes a perforation tool having a ball seat, which upon seating a drop ball in the ball seat enables the perforation tool to move from a closed position to an open position thereby allowing access to the formation using a jetting tool. Prior to seating the drop ball, an under-reaming operation may be performed using a hydraulic pressure activated under-reaming tool. | 09-30-2010 |
20100243267 | CONTROL MECHANISM FOR SUBSURFACE SAFETY VALVE - A control mechanism for use with a safety valve adapted to seal a wellbore is described. The control mechanism comprises at least one valve actuator for engaging with the safety valve, the at least one actuator being moveable, in use, between a valve open position in which the safety valve is open and a valve closed position, in which the safety valve is closed. The control mechanism further comprises biasing apparatus adapted to bias the at least one valve actuator to the valve closed position, wherein, in use, the at least one valve actuator extends from the safety valve up to a wellbore wellhead. In one described embodiment, the safety valve is moved between the open and closed positions by movement of the at least one valve actuator with respect to the wellbore. | 09-30-2010 |
20100243268 | SYSTEM AND METHOD FOR SNUBBING UNDER PRESSURE - A snubbing plug is configured to enable pressure equalization above and below the plug before it is removed from a mineral extraction well. The pressure may be equalized via fluid pathways through the snubbing plug. While the snubbing operations are ongoing, the fluid pathways are closed and sealed by a valve. Upon completion of the snubbing operations, the valve is opened to enable fluid flow through the pathways. The valve includes a piston disposed within a body of the snubbing plug. The piston may be coupled to pins disposed within L slots in the body. While the valve is closed, the pins are disposed in a horizontal portion of the L slot, blocking vertical movement of the piston. To open the valve, the piston is rotated until the pins reach a vertical portion of the L slot, whereupon a spring biases the piston upward to open the fluid pathways. | 09-30-2010 |
20100252272 | APPARATUS AND METHOD TO MAINTAIN CONSTANT FLUID CIRCULATION DURING DRILLING - The invention regards an apparatus and method for maintaining constant circulation of drilling fluid during the entire drill process. A cylindrical valve section ( | 10-07-2010 |
20100258319 | BACK PRESSURE VALVE - A system in some embodiments includes a back pressure valve configured to mount in a mineral extraction system. The back pressure valve comprises a cylindrical body comprising a venting port coaxial with a longitudinal axis of the cylindrical body and a plunger disposed in the venting port, wherein the plunger comprises a stem that extends from the venting port into an adjacent cavity of the cylindrical body. In some embodiments, a method of operating a valve, includes biasing a plunger to an open position, biasing a valve locking mechanism to a locked position in relation to a bore of a mineral extraction system, and biasing a plunger to a closed position. | 10-14-2010 |
20100270030 | FULL FUNCTION DOWNHOLE VALVE - Downhole valves comprise a housing having a bore, a port, upper and lower recesses disposed in an inner wall surface of the bore, the upper recess disposed above the port and the lower recess disposed below the port, and upper and lower pistons disposed in the bore. The upper and lower pistons each comprise a bore with a port in communication with housing bore. During run-in, the housing port is blocked by the lower piston. Actuation of the lower piston unblocks the housing port and aligns the lower piston port with the lower recess. Actuation of the upper piston closes the housing port and aligns the upper piston port with the upper recess. Alignment of the ports of the pistons with their respective recesses permits fluid flow through the tool both when the valve is opened by the lower piston and closed by the upper piston. | 10-28-2010 |
20100276154 | FLOW-ACTUATED ACTUATOR AND METHOD - Disclosed herein is a flow-actuated actuator. The actuator includes, a plurality of rings positionable within a structure, each ring having a full bore therethrough, and a plurality of elongated members in operable communication with the plurality of rings providing orientation of each ring to at least one adjacent ring, the plurality of rings and the plurality of elongated members configured to generate an urging force in response to fluid flow thereby. | 11-04-2010 |
20100276155 | SYSTEM AND METHOD FOR SUBSEA CONTROL AND MONITORING - A technique operates a valve system in a subsea test tree via a control system of a type suitable for gaining desired industry ratings. A monitoring system is utilized to monitor functions of the control system, but the monitoring system is independent from the control system. | 11-04-2010 |
20100282475 | Multiple-Positioning Mechanical Shifting System and Method - A multiple-positioning mechanical shifting system including for used in hydrocarbon wells. The system includes a shifting tool capable of selectively positioning a mechanical sliding sleeve valve in multiple operational positions that varying the flow rate and/or volume of tubing string fluid flowing to the well annulus. The system also includes a multiple position mechanical choke valve. A method of operating the mechanical choke valve using the shifting tool is described. | 11-11-2010 |
20100282476 | PRODUCTION TUBING DRAIN VALVE - A tubing drain valve in a production tubing string, positioned above a pump, is operated to open drain ports in the housing for draining produced fluids from the production tubing when the pump is shut off. The drain valve incorporates a check valve assembly which is freely moveable within the drain valve to shift a sleeve to open and close the drain ports. An uphole end of the check valve assembly is above the sleeve and seals to the top of a sleeve to shift the sleeve downhole and open the drain ports. A downhole end of the check valve is positioned below the sleeve in the valve. When the pump is turned on, the downhole end of the check valve assembly moves uphole to seal to the sleeve, creating a positive force to lift the sleeve to block the drain ports. The produced fluids flow through the valve and the production tubing to surface. The positive force minimizes the effect of fouling of the valve due to debris above the valve which might otherwise result in failure to shift the sleeve uphole, leaving the drain ports open. | 11-11-2010 |
20100294508 | FLOW-ACTUATED ACTUATOR AND METHOD - Disclosed herein is a flow-actuated actuator. The actuator includes, a tubular movable relative to a structure within which the tubular is positionable, and a plurality of full bore flow-resisting elements disposed at the tubular, the plurality of full bore flow-resisting elements having a greater resistance to fluid flow therethrough than any one of the plurality of full bore flow-resisting elements has alone. | 11-25-2010 |
20100294509 | FLOW-ACTUATED ACTUATOR AND METHOD - Disclosed herein is a downhole flow-actuated actuator. The actuator includes, a first tubular, a second tubular longitudinally movably disposed within the first tubular and movable in response to fluid flow therethrough, the second tubular having a full bore therethrough, and a movable member movably attached to the second tubular and movable with the second tubular relative to the first tubular. The movable member is movable between a first position and a second position, the movable member is unobstructive of the full bore when in the first position and at least partially occluding of the full bore when in the second position, the movable member is movable from the first position to the second position in response to movement of the second tubular. | 11-25-2010 |
20100300702 | Wellbore Shut Off Valve with Hydraulic Actuator System - A wellbore shut-off valve is operably associated with a valve actuator so that the shut-off valve can be selectively moved between open and closed conditions when desired rather than opening and closing occurring automatically as portions of the production assembly are removed or replaced in the wellbore. | 12-02-2010 |
20100314126 | SEAT APPARATUS AND METHOD - A seat apparatus comprises a housing defining at least a first flow path and at least a second flow path, a first seat disposed in the housing for receipt of a first object operative to obstruct the first flow path, and a second seat disposed in the housing for receipt of a second object operative to obstruct the second flow path and method. | 12-16-2010 |
20100319927 | Downhole Tool with Hydraulic Closure Seat - A downhole tool | 12-23-2010 |
20100319928 | THROUGH TUBING INTELLIGENT COMPLETION AND METHOD - A through tubing intelligent completion including a completion string; one or more isolation seals on the completion string and having an undeployed set of dimensions smaller than one or more restrictions in a tubing string through which the completion string is deployed; and one or more interventionlessly actuable flow control devices in the completion string having a set of dimensions smaller than one or more restrictions in a tubing string through which the completion string is deployed and method. | 12-23-2010 |
20110000679 | TUBULAR VALVE SYSTEM AND METHOD - A tubular valve system includes, a tubular, a primary valve actuatable to control occlusion of at least one port fluidically connecting an inner bore of the tubular with an outside of the tubular, and a contingency valve actuatable to control occlusion of at least one port fluidically connecting the inner bore with the outside of the tubular. | 01-06-2011 |
20110000680 | REMOTELY CONTROLLABLE VARIABLE FLOW CONTROL CONFIGURATION AND METHOD - A remotely controllable flow control configuration including a body; one or more flow restrictors disposed in the body; and a selector fluidly connected with the body and capable of supplying or denying fluid to one or more of the one or more flow restrictors and method. | 01-06-2011 |
20110011597 | TUBULAR VALVE SYSTEM AND METHOD - A tubular valve system including a tubular having a plurality of ports therethrough; a plurality of strokable sleeves disposed at the tubular being configured to stroke in response to a same external input; and a plurality of motion translating details disposed at at least one of the tubular and the plurality of strokable sleeves configured to alter a stroke of the plurality of strokable sleeves after a selected number of strokes to thereby open at least one of the plurality of ports and method. | 01-20-2011 |
20110017469 | ROTATABLE VALVE FOR DOWNHOLE COMPLETIONS - Method and apparatus for performing a series of downhole operations. The method can include conveying a work string with an integrated valve into a wellbore. As the work string with the integrated valve is conveyed into the wellbore, the valve can be in a first operation mode. When the valve is located within the wellbore, the valve can be adjusted to a different operation mode by selectively rotating at least a portion of the valve without longitudinal movement of the valve relative to the wellbore. | 01-27-2011 |
20110017470 | SELF-ADJUSTING IN-FLOW CONTROL DEVICE - Devices, systems and related methods control a flow of a fluid between a wellbore tubular and a formation using a flow control device having a flow space formed therein; and a flow control element positioned in flow space. The flow control element may be configured to flex between a first radial position and a second radial position to in response to a pressure differential along the flow space. | 01-27-2011 |
20110024132 | MULTI-PROCESS ELECTRONIC CONTROL VALVE SYSTEM - A valve system is disclosed. The system has a main valve that is adjustable for output flow and pressure. The system also includes an output flow transducer, an output pressure transducer, and a fluid depth transducer. A microcontroller is operatively coupled to the valve, the output flow transducer, the output pressure transducer, and the fluid depth transducer. The microcontroller operates the valve to selectively control the output flow, the output pressure, and the fluid depth according to inputs received from a user. | 02-03-2011 |
20110030968 | TUBULAR ACTUATOR, SYSTEM AND METHOD - A tubular actuating system includes, a tubular, a plurality of same plugs runnable within the tubular, an alterable actuator disposed at the tubular that is alterable in response to passage of a first of the plurality of same plugs run into contact therewith, a second of the plurality of same plugs is seatingly engagable with the alterable actuator run thereagainst when in an altered condition such that pressure built up against the second of the plurality of same plugs causes actuational movement of the alterable actuator, and a flapper seat movably disposed at the alterable actuator between at least a first position defined by the alterable actuator in an unaltered position and a second position defined by the alterable actuator in an altered position. | 02-10-2011 |
20110030969 | FLOW CONTROL IN A WELL BORE - A system for installation in a well bore includes a flow control device and a control unit coupled to the flow control device. The flow control device is changeable from a first state to a second state. The first state corresponds to a first mode of fluid communication between an interior of a tubular conduit of a completion string and an annulus between the tubular conduit and a wall of the well bore. The second state corresponds to a second, different mode of fluid communication between the interior of the tubular conduit and the annulus. The control unit is coupled to the flow control device to change the flow control device between the first and second states. The control unit is actuated to change the flow control device in response to pressure in the well bore. | 02-10-2011 |
20110036590 | System and method for servicing a wellbore - A wellbore servicing system, comprising a first sleeve system, the first sleeve system comprising a first sliding sleeve at least partially carried within a first ported case, the first sleeve system being selectively restricted from movement relative to the first ported case by a first restrictor while the first restrictor is enabled, and a first delay system configured to selectively restrict movement of the first sliding sleeve relative to the ported case while the restrictor is disabled. | 02-17-2011 |
20110036591 | FLOW STOP VALVE - A flow stop valve ( | 02-17-2011 |
20110042099 | Remote Actuated Downhole Pressure Barrier and Method for Use of Same - A downhole pressure barrier ( | 02-24-2011 |
20110042100 | WELLBORE CIRCULATION ASSEMBLY - In some embodiments, a circulation assembly can direct all or substantially all fluid downstream in a drill string in a first mode of operation, and some or all fluid to an annulus in a second mode. Operation of the circulation assembly can be repeatedly changed between the modes of operation. In some embodiments, the circulation assembly can comprise other modes wherein fluid is apportioned between the annulus and the downstream drill string. | 02-24-2011 |
20110048732 | SYSTEM AND METHOD FOR CONTROLLING THE FLOW OF FLUID IN BRANCHED WELLS - A system for controlling the flow of fluid in a branched well from a reservoir ( | 03-03-2011 |
20110061875 | CASING VALVES SYSTEM FOR SELECTIVE WELL STIMULATION AND CONTROL - Casing valves for selective well stimulation and control. A well system includes at least one valve interconnected in a casing string operable via at least one line external to the casing string to selectively control fluid flow between an exterior and interior of the casing string, and the casing string, valve and line being cemented in a wellbore. A method of selectively stimulating a subterranean formation includes: positioning a casing string in a wellbore, the casing string including spaced apart valves operable via a line to selectively control fluid flow between an interior and exterior of the casing string; and for each of multiple intervals of the formation in sequence, stimulating the interval by opening a corresponding one of the valves, closing the remainder of the valves, and flowing a stimulation fluid from the casing string into the interval. | 03-17-2011 |
20110067886 | INFLOW CONTROL DEVICE AND METHODS FOR USING SAME - A completion assembly with a valve assembly for regulating fluid flow in a wellbore is disclosed. The completion assembly can include a base pipe with a sand screen. A flow control housing is disposed on one end of the sand screen. A first tubular port in the base pipe leads into the flow control housing, and a second tubular port is also formed in the base pipe. A flow path is formed within the flow control housing and communicates with both the base pipe and the inner annulus of the screen assembly. A valve assembly is located in the flow control housing and is in fluid communication with both the inner annulus and the base pipe. The valve assembly is positionable between multiple positions for controlling the flow through the flow control flowpath in response to fluid pressure applied to the second tubular port. | 03-24-2011 |
20110073320 | TUBULAR ACTUATOR AND METHOD - A tubular actuator includes, a restrictor disposed at a tubular that is engageably receptive to a runnable member run thereagainst as long as pressure remains above a latch pressure, the restrictor configured to allow passage of the runnable member after a delay at pressure equal to or below the latch pressure. | 03-31-2011 |
20110073321 | TUBULAR ACTUATOR AND METHOD - A tubular actuator includes, a tubular, a support member disposed at the tubular, and a restrictor configured to pass a runnable member when unsupported by the support member and to prevent passage of the runnable member when supported by the support member. The restrictor is movable relative to the support member from an unsupported position to a supported position in response to pressure applied against the runnable member engaged with the restrictor according to a pressure versus time profile. | 03-31-2011 |
20110073322 | Gas lift plunger acceleration arrangement - An elongated plunger arrangement for moving up and down in a tubing string and a plunger lift system for an oil well and a gas well, the plunger having an upper portion, an intermediate portion and a lower portion, all of the portions having an elongated longitudinally directed bore or cavity therewithin, the plunger also having a direction accelerating arrangement therewithin, the direction accelerating arrangement comprising an elongated acceleration inducing valve containing shift rod extending through the elongated bore, wherein the shift rod is longer than the elongated plunger. | 03-31-2011 |
20110079398 | MULTI-POINT CHEMICAL INJECTION SYSTEM FOR INTELLIGENT COMPLETION - An intelligent completion system includes a production tubing configured for production from multiple zones in a wellbore; at least one flow control valve disposed on the production tubing for each of the multiple zones, wherein the at least one flow control valve regulates flow of a wellbore fluid into the production tubing; a chemical injection mandrel disposed on the production tubing adjacent the at least one flow control valve in the each of the multiple zones, wherein the chemical injection mandrel is connected to at least one chemical injection line for injecting one or more chemicals into the wellbore; and a control mechanism connected to the at least one flow control valve and the chemical injection mandrel such that the injection mandrel and the at least one flow control valve are operated in a coordinated manner. | 04-07-2011 |
20110079399 | Hydra-Connector - A hydraulic connector for a wellhead hub is provided that includes a piston and a bottom portion configured to move in an axial direction via hydraulic pressure applied to one or more hydraulic ports in the connector. The movement of the piston and the bottom portion moves a ring and a segment of the connector in a radial direction to engage recesses in the wellhead hub. The connector may be unlocked by applying hydraulic pressure to a hydraulic port of the connector. A system and method of operating the connector are also provided. | 04-07-2011 |
20110083856 | SENSOR DEPLOYMENT AND RETRIEVAL SYSTEM USING FLUID DRAG FORCE - Methods, apparatus, and systems for deploying and retrieving sensors downhole are provided. The apparatus can include an outer tubular member disposed about one or more inner tubular members coupled to a fluid directional controller. The fluid directional controller may include a housing separating an interior cavity from an external environment of the wellbore. One end of the outer tubular member and at least one end of an inner tubular member may communicate with the interior cavity. The housing may also include a passageway configured to provide fluid communication between the interior cavity and the external environment. A flow control device may selectively facilitate fluid flow through the passageway. Accordingly, a sensor located in the interior cavity may be selectively exposed to fluid from the external environment. Sensors may be deployed by flowing fluid through a particular tubular member in one direction and retrieved by flowing fluid in another direction. | 04-14-2011 |
20110083857 | REPEATABLE, COMPRESSION SET DOWNHOLE BYPASS VALVE - A bypass valve for use in tubing string which can be repeatedly opened and closed to selectively provide bypass fluid flow between the interior of the tubing string and the annulus to assist in flowing debris. The valve uses hardened valve elements which can be opened and closed while flowing fluids under pressure through the tubing string. The valve is actuated by placing the tubing string in a sufficient weight down condition to operate the valve. A trigger is provided to prevent unintended actuation of the bypass valve during use. | 04-14-2011 |
20110083858 | DOWNHOLE TOOL ACTUATION DEVICES AND METHODS - According to one or more embodiments of the invention, a downhole tool includes one or more actuator apparatuses to facilitate actuation of the downhole tool. The actuation apparatus includes a piston that is dynamically coupled to a tool actuator by an actuator connector in a manner that the piston and the tool actuator necessarily move in unison in response to movement of the piston in a first direction and the piston and the tool actuator do not necessarily move in unison in response to movement of the piston in the second direction. | 04-14-2011 |
20110088912 | Downhole hydraulic control line - The invention relates to a downhole hydraulic control tool comprising a substantially tubular body adapted for connection in a tubing string, the body including a throughbore arranged coaxially with a bore of the tubing string and one or more pockets arranged on a wall of the body, the pockets including a hydraulic power source and at least two control lines, wherein the device includes a pump to drive hydraulic fluid through the control lines and a switchable flow mechanism for switching the flow of pumped fluid between the at least two control lines. Also provided are a switchable flow mechanism and a method of operating one or more downhole devices from a downhole located hydraulic control tool. | 04-21-2011 |
20110094752 | CONTROL OF SUB SURFACE SAFETY VALVES - A well installation including metallic structure having downhole metallic tubing for conveying product towards the surface, a sub surface safety valve disposed in the downhole metallic tubing for interrupting flow of product towards the surface when closed and allowing flow of product towards the surface when open. Also, valve control means are disposed downhole and arranged for detecting electrical signals in the downhole metallic tubing and for holding the valve open while receiving an electrical signal, and surface signaling means for applying an electrical signal to metallic structure of the well for transmission via the downhole metallic tubing towards the valve control means so as to hold the valve open. The system can be made more robust by ensuring that the control means will only hold the valve open while receiving a signal of given characteristics to help prevent stray currents erroneously holding the valve open. This signal selective aspect of the system may be implemented using a tuned impedance generation means. | 04-28-2011 |
20110100640 | DRIVE MECHANISM - A drive mechanism is described for moving/controlling objects/mechanisms/systems coupled with a drillstring and/or pipe. The drive mechanism may be axially arranged on a drillstring or pipe, compact, capable of fine control and delivering high torque or the like and may be electrically and/or hydraulically powered. The drive mechanism may comprising a driving member comprising a plurality of drivers linearly translatable with respect to the driving member, each driving member having at their ends a male engaging portion and an associated driven member, comprising a plurality of female receiving portions adapted to receive a male engaging portion, the arrangement being such that linear translation of a driver causes its engaging portion to engage with a female receiving portion and the action of the engaging portion produces a reaction in the receiving portion causing displacement of the driven member in a direction other than that of the translatable driver. | 05-05-2011 |
20110100641 | DOWNHOLE PISTON PUMP AND METHOD OF OPERATION - A method, according to one or more aspects of the present disclosure, for operating a positive displacement pump of a downhole tool comprises supplying a hydraulic pressure to the pump to actuate a two-stroke piston to displace fluid at least partially through the downhole tool; moving the piston in a first stroke direction; and reversing the direction of the piston upon completion of the first stroke of the piston. Completion of a stroke may comprise a head of the piston substantially abutting an end wall of a chamber of the pump. | 05-05-2011 |
20110100642 | INSTRUMENTED TUBING AND METHOD FOR DETERMINING A CONTRIBUTION TO FLUID PRODUCTION - An instrumented tubing for determining a contribution of a given zone to fluid production of a reservoir, the instrumented tubing including a tube having an open end for collecting a fluid flowing from the given zone and a port for coupling the tube to a production tubing for letting the collected fluid flow into the production tubing, and a sensor for measuring a parameter of the collected fluid, wherein the sensor is connected to an electronic unit for determining the contribution of the given zone to the fluid production of the reservoir based on said measured parameter. | 05-05-2011 |
20110100643 | DOWNHOLE SUB WITH HYDRAULICALLY ACTUABLE SLEEVE VALVE - A method for opening a port through the wall of a ported sub including: providing a sub with a port through its tubular side wall; providing a hydraulically actuable valve to cover the port, the valve being actuable to move away from a position covering the port to thereby open the port; increasing pressure within the sub to create a pressure differential across the valve to move the valve toward the low pressure side, while the port remains closed by the valve; thereafter, reducing pressure within the sub to reduce the pressure differential; and driving the valve to move it away from a position covering the port. | 05-05-2011 |
20110108284 | Cluster Opening Sleeves for Wellbore Treatment - A downhole sleeve has a sliding sleeve movable in a bore of the sleeve's housing. The sliding sleeve is movable from a closed condition to an opened condition when a ball is dropped in the sleeve's bore and engages an indexing seat in the sliding sleeve. The sliding sleeve in the closed condition prevents communication between the bore and the port, and the sleeve in the opened condition permits communication between the bore and the port. In the closed condition, keys of the seat extend into the bore to engage the ball and to move the sliding sleeve open. In the opened condition, the keys of the seat retract from the bore so the ball can pass through the sleeve to another cluster sleeve or to another isolation sleeve of an assembly. | 05-12-2011 |
20110108285 | METHOD AND APPARATUS FOR A WELLBORE ASSEMBLY - A method and apparatus for a wellbore assembly. The wellbore assembly may comprise a conveyance member including at least one of a continuous spooled rod, a wireline, and a slickline; an accumulator system connected to the conveyance member; and a setting tool connected to the accumulator system. The accumulator system may be configured to supply a fluid pressure to actuate the setting tool. A method of operating a wellbore tool may comprise lowering a wellbore assembly into a wellbore using a conveyance member including at least one of a continuous spooled rod, a wireline, and a slickline, wherein the wellbore assembly includes an accumulator system and a setting tool. The method may comprise actuating the accumulator system to provide a fluid pressure to the setting tool. The method may comprise actuating the setting tool using the fluid pressure. | 05-12-2011 |
20110114333 | Casing Annulus Management - A wellbore tubular set concentrically between an inner an and outer annulus has a pressure relief valve that opens when pressure in the outer annulus exceeds pressure in the inner annulus by an amount that can damage the tubular. The relief valve closes and reseats when the pressure differential is reduced to below the damaging threshold. The relief valve can include a spring for reseating the valve. A pressure gauge can be included within the outer annulus for monitoring whether or not the relief valve is operating properly. | 05-19-2011 |
20110114334 | APPARATUS AND METHOD FOR ACTIVATING AND DEACTIVATING A DOWNHOLE TOOL - A control mechanism for a downhole tool including a mandrel having a throughbore, at least one activation port, and at least one bypass port, a first sleeve detachably mounted within the throughbore at a first position and moveable to a second position, the first sleeve having a first seat, and a second sleeve detachably mounted within the throughbore at a third position located axially above the first position and moveable to a fourth position, the second sleeve having a second seat. A method of hydraulically actuating and deactuating a downhole tool, the method including disposing the downhole tool and a control mechanism in a well. | 05-19-2011 |
20110114335 | Subsurface Safety Valve Flapper - A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body further forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore. Forces exerted on the flapper body when rotating between an open state and a closed state during use of the safety valve urge at least a portion of the leaf spring into the groove. | 05-19-2011 |
20110120725 | WELLBORE INSTRUMENTS USING MAGNETIC MOTION CONVERTERS - A directional drilling system, a drilling hammer and a fluid flow telemetry modulator use a plurality of magnets arranged to convert rotational motion into reciprocating linear motion. Various types of motor can provide rotational motion to a part of the magnets and various linkages and other devices can cause steering or operation of a modulator valve. A torsional drilling hammer uses a plurality of magnets arranged to convert reciprocating linear motion into reciprocating rotational motion. A motor and linkage drives the linearly moving part of the magnets, and the rotating part provides torsional impact be striking the linearly moving part of the magnets. | 05-26-2011 |
20110120726 | Multi-Position Valve for Fracturing and Sand Control and Associated Completion Methods - A completion tubular is placed in position adjacent the zone or zones to be fractured and produced. It features preferably sliding sleeve valves that can assume at least two configurations: wide open and open with a screen material juxtaposed in the flow passage. In a preferred embodiment the valve assembly has three positions, adding a fully closed position to the other two mentioned. After run in, the valves can be put in the wide open position in any order desired to fracture. After fracturing, the valves can be closed or selectively be put in filtration position for production from the fractured zones in any desired order. Various ways are described to actuate the valves. The tubular can have telescoping pistons through which the fracturing can take place if the application calls for a cemented tubular. Alternatively, the tubular can be in open hole and simply have openings for passage of fracture fluid and external isolators to allow fracturing in any desired order. | 05-26-2011 |
20110127042 | APPARATUS AND METHOD FOR TREATING A SUBTERRANEAN FORMATION USING DIVERSION - Apparatus and methods comprising a plurality of particles which are magnetically attracted to one another in response to exposure to an magnetic field, and which maintain attraction to one another after removal of the magnetic field, the attraction being disabled when the particles are demagnetized, whereby the particles operate to alter the rheological properties of a fluid in which the particles are mixed when the attraction is enabled or disabled is disclosed. | 06-02-2011 |
20110127043 | GAS LIFT VALVE - A gas lift valve assembly includes a housing that includes a first passageway that is substantially concentric with the central passageway of a string to communicate well fluid and a second passageway that is eccentrically disposed with respect to the central passageway to communicate a second fluid to lift the well fluid. The gas lift valve assembly includes a valve that is disposed in the second passageway and includes a ball valve to regulate communication of the second fluid. | 06-02-2011 |
20110127044 | Remotely controlled apparatus for downhole applications and methods of operation - An apparatus for use downhole is disclosed that, in one configuration includes a downhole tool configured to operate in an active position and an inactive position and an actuation device, which may include a control unit. The apparatus includes a telemetry unit that sends a first pattern recognition signal to the control unit to move the tool into the active position and a second pattern recognition signal to move the tool into the inactive position. The apparatus may be used for drilling a subterranean formation and include a tubular body and one or more extendable features, each positionally coupled to a track of the tubular body, and a drilling fluid flow path extending through a bore of the tubular body for conducting drilling fluid therethrough. A push sleeve is disposed within the tubular body and coupled to the one or more features. A valve assembly is disposed within the tubular body and configured to control the flow of the drilling fluid into an annular chamber in communication with the push sleeve; the valve assembly comprising a mechanically operated valve and/or an electronically operated valve. Other embodiments, including methods of operation, are provided. | 06-02-2011 |
20110132618 | MULTI-POSITION TOOL ACTUATION SYSTEM - A technique facilitates control over a multi-position well tool. A hydraulic control module may be engaged with a multi-position well tool for controlling actuation of the multi-position well tool through a plurality of actuation positions. The multi-position well tool is moved through the plurality of actuation positions by applying pressurized fluid through a first control line. A metering piston is uniquely arranged within the hydraulic control module to control actuation of the multi-position well tool from an initial actuation position through a plurality of incremental actuation positions. Additionally, a single pressurization of actuation fluid delivered through a second control line may be used to return the multi-position well tool back to the initial actuation position from any incremental position. | 06-09-2011 |
20110147006 | Downhole-Adjustable Flow Control Device for Controlling Flow of a Fluid Into a Wellbore - A flow control device is provided that in one embodiment includes a flow-through region configured to receive formation fluid at an inflow region and discharge the received fluid at an outflow region and a setting device configured to adjust the flow of the fluid through the flow-through region to a selected level. The setting device includes a coupling member configured to be coupled to an external latching device adapted to move the coupling member to cause the setting device to alter the flow of the fluid from the flow-through region to the selected level. | 06-23-2011 |
20110147007 | Downhole-Adjustable Flow Control Device for Controlling Flow of a Fluid Into a Wellbore - A flow control device is provided that in one embodiment includes a flow-through region configured to receive formation fluid at an inflow region and discharge the received fluid at an outflow region and a setting device configured to adjust the flow of the fluid through the flow-through region to a selected level. The setting device includes a coupling member configured to be coupled to an external latching device adapted to move the coupling member to cause the setting device to alter the flow of the fluid from the flow-through region to the selected level. | 06-23-2011 |
20110155391 | GAS LIFT BARRIER VALVE - A gas lift valve that has a longitudinally extending tubular body having an inlet and an outlet, a flow path extending between the inlet and the outlet, and a flow tube located inside the body. The flow tube is translatable in the axial direction between at least a first and a second position. A venturi orifice located inside the body along the flow path. A seal part is located proximate to the outlet of the body. A flapper is connected with the body by way of a hinge part and the flapper has at least a first open position and a second closed position. The closed position is where the flapper contacts the seal thereby closing the flowpath and the second closed position is where the flapper does not contact the seal and does not close the flowpath. | 06-30-2011 |
20110155392 | Hydrostatic Flapper Stimulation Valve and Method - A downhole tool including a tubular housing, a sleeve, a flapper valve, and a pressurized chamber. The tubular housing has an inner bore. The sleeve is disposed in the inner bore and configured to slide between a first position and a second position. The flapper valve is pivotally coupled to the tubular housing, maintained in an inoperative position when the sleeve is in the first position, and pivotable between an open position and a closed position when the sleeve is in the second position. The pressurized chamber is in fluid communication with the sleeve, wherein, upon activation of the downhole tool, a hydrostatic pressure is applied on the sleeve via the pressurized chamber, such that the sleeve slides from the first position to the second position. | 06-30-2011 |
20110162851 | TOOL FOR SHUTTING OFF OPENINGS OR LEAKS IN A WELL BORE - A shutoff tool for being entered into a well bore and shutting off openings or leaks, said shutoff tool comprising: one or more enclosures prepared for comprising a sealant, said sealant being capable of shutting off openings or leaks when cured. An outer inflatable bladder arranged outside and covering said one or more enclosures, said outer inflatable bladder being prepared for rupturing in positions where it is not supported during inflation, said rupturing will provide access from said one or more enclosures to the outside of said outer inflatable bladder. An inner inflatable bladder arranged inside the outer inflatable bladder and such that said one or more enclosures will be arranged between the outer and the inner inflatable bladders, such that when inflated said inner inflatable bladder can exert a pressure on said one or more enclosures. A core arranged inside said inner inflatable bladder, and prepared for supplying a pressurised fluid into said inner inflatable bladder. | 07-07-2011 |
20110168403 | WIRELESSLY ACTUATED HYDROSTATIC SET MODULE - A hydrostatic set module configured with a wireless trigger mechanism to allow wireless activation thereof from an oilfield surface. The trigger mechanism includes a charge for exposing the module to wellbore pressures and allowing it to behave as an intensifier for actuation of a downhole device such as a production packer. The mechanism also includes a sensor for detection of the wireless communications along with a processor for analysis thereof and to direct spending of the charge. Pressure pulse or other wireless communication forms that are suitable for the downhole environment may be transmitted from surface in a variety of different signature patterns for responsive analysis by the trigger mechanism. | 07-14-2011 |
20110174499 | FLOW REGULATOR FOR DOWNHOLE PROGRESSING CAVITY MOTOR - A system for regulating the flow of fluid through a progressing cavity motor includes an annulus restriction ( | 07-21-2011 |
20110180268 | Openable Port and Method - An openable port includes a body, a sleeve movable relative to the body, and a plug disposed at the sleeve that is extrudable through the sleeve. And the sleeve is substantially occluded to flow therethrough by the plug prior to extrusion of the plug and is open to flow therethrough after extrusion of the plug. | 07-28-2011 |
20110180269 | Down hole valve device - The present invention regards a valve device for use with a down hole tool comprising at least a first fluid line and a return fluid line, the valve device comprises a first inlet and a first outlet forming a first flow path between them, and a second inlet and a second outlet forming a second flow path between them, at least one closure element for closing and or opening at least one of the flow paths. According to the invention there is at least one closure element together with the respective flow paths forms a first and second check valves, which in a first state prevents a fluid from flowing from the first outlet to the first inlet and a fluid from flowing from the second inlet to the second outlet. The invention also regards a method for operating a down hole valve device. | 07-28-2011 |
20110186303 | Control System for a Surface Controlled Subsurface Safety Valve - Surface controlled subsurface control valves for use in wells and methods of controlling the same. In one embodiment, a valve includes a valve body, a bore closure assembly, a mechanical linkage, a drive assembly, and a control assembly. The valve body defines a bore for fluid to flow through when the bore closure assembly is in an open position. When the bore closure assembly is in its closed position, the bore closure assembly prevents fluid from flowing through the bore. The mechanical linkage is operatively connected to the bore closure assembly and to the drive assembly. The primary control assembly determines a force to apply to the mechanical linkage based on a present operating condition of the valve and causes the drive assembly to apply the determined force to the mechanical linkage. As a result, the mechanical linkage drives the bore closure assembly. | 08-04-2011 |
20110192612 | Controller for a Downhole Tool - The controller comprises housing ( | 08-11-2011 |
20110192613 | Cluster Opening Sleeves for Wellbore - A downhole sleeve has an insert movable in the sleeve's bore from a closed condition to an opened condition when a ball dropped in the bore engages an indexing seat in the sliding sleeve. In the closed condition, the insert prevents communication between the bore and the sleeve's port, while the insert in the opened condition permits communication between the bore and port. Keys of a seat extend into the bore to engage the ball and to move the insert open. After opening, the keys retract so the ball can pass through the sleeve to another cluster sleeve or to an isolation sleeve of an assembly. Insets or buttons disposed in the sleeve's port temporarily maintain fluid pressure in the sleeve's bore so that a cluster of sleeves can be opened before treatment fluid dislodges the button to treat the surrounding formation through the open port. | 08-11-2011 |
20110198096 | Unlimited Downhole Fracture Zone System - Apparatus and method are provided for diverting treatment fluids in wells. Sliding sleeves or valves are sequentially opened by dropping balls that may be of uniform size. Opening of one valve moves a collet into position such that the same size ball can be used to open a second valve. Any selected number of valves can be opened with the same size balls. Systems using the valves are also disclosed, along with methods for operating. | 08-18-2011 |
20110198097 | AUTONOMOUS INFLOW CONTROL DEVICE AND METHODS FOR USING SAME - A valve assembly for regulating fluid flow in a horizontal wellbore. A housing can be coupled to a production tubular. A chamber is defined within the housing and can be in fluid communication through a flow channel with an inner annulus formed adjacent the wellbore. A piston and a biasing member can be disposed within the chamber, where the biasing member biases the piston into a first position. A flowpath is defined within the housing and communicable with both the production tubular and the inner annulus. The flowpath can include one or more nozzles disposed therein, and the piston can be configured to move between the first position allowing fluid flow through the flowpath to the production tubular and a second position preventing fluid flow to the production tubular. | 08-18-2011 |
20110203805 | Valving Device and Method of Valving - A valving device includes a tubular having a wall including a passageway therethrough fluidically connecting an outside of the tubular with an inside of the tubular, a plug movable relative to the wall between a first position wherein the plug substantially prevents fluid flow through the passageway and a second position wherein the plug permits fluid flow through the passageway. At least one force failing member configured to maintain the plug in the first position until attainment of a selected force acts upon the plug, and movement of the plug is in a direction substantially parallel to a longitudinal axis of the tubular yet non-coaxial with the tubular. | 08-25-2011 |
20110203806 | ARRANGEMENT FOR DIRECTING A FLUID FLOW - An arrangement for directing a fluid flow or a tool transported in a fluid flow in an under water structure includes plural flow line arrangements each including at least one flow line, and at least two distribution devices to be varied between at least two positions. One distribution device connects at least two flow arrangements providing for the selection of the fluid flow pattern directing the fluid through the distribution devices and the flow arrangements depending on the position of each of the distribution devices. A method directs a fluid flow or a tool transported in a fluid flow. | 08-25-2011 |
20110203807 | Multistage Production System and Method - A system and method for more efficiently stimulating and producing from a production string. The present invention comprises production tubing; at least one selectively-openable valve assembly located inline with the production tubing; and at least one flapper valve assembly located inline with the production tubing. One flapper valve assembly is associated with each selectively-openable valve assembly. The flapper valve assembly is orientated to impede fluid flow in the downwell direction when closed. | 08-25-2011 |
20110203808 | DISPOSAL OF WELL CONTROL FLUIDS - Hydraulic well fluid vented from a hydraulically controlled actuating device is disposed of by pumping the fluid via a pump and a valve into a production flowline of the well. | 08-25-2011 |
20110209880 | Drill String Valve Actuator with Inflatable Seals - Method and actuator system for a Kellyguard valve disposed in a drill string. The actuator system includes a sleeve that includes a cavity; an actuator disposed inside the cavity and configured to rotate the Kellyguard valve; first and second external regions of the sleeve having plural holes configured to receive a medium under pressure for actuating the actuator; a ring provided around the first and second external regions of the sleeve and configured to be fixed, the ring having first and second internal grooves facing the first and second external regions, respectively; and first and second seals provided inside the first and second grooves, respectively, at least one of the first and second seals being configured to not touch the first or second external regions of the sleeve when in a collapsed state and to touch the first or second external regions when in an inflated state. | 09-01-2011 |
20110214881 | FLOW CONTROL ARRANGEMENT AND METHOD - A flow control arrangement includes a housing defining one or more openings therein; a valve structure alignable and misalignable with the one or more openings in the housing; and one or more plugs, one each in each of the one or more openings, each plug being reducible by one or more of exposure to downhole fluids and applied dissolution fluids and method for carrying out a series of downhole operations. | 09-08-2011 |
20110214882 | SYSTEM AND METHOD FOR SAFE WELL CONTROL OPERATIONS - A system and method for safely controlling a well being drilled or that has been drilled into a subterranean formation in which a conventional blow-out preventer operates to close the well bore to atmosphere upon the detection of a fluid influx event. Fluid pressures as well as fluid flow rates into and out of the well bore are measured and monitored to more accurately and confidently determine the fracture pressure and pore pressure of the formation and perform well control operations in response to a fluid influx event. During a suspected fluid influx event, one or more of the fluid flow and pressure measurements are used to confirm the fluid influx event and to safely regain well control by circulating the fluid influx out of the well through a choke line while maintaining the pressure inside the well between specified, selected limits, such as between the fracture and pore pressures. | 09-08-2011 |
20110220367 | OPERATIONAL CONTROL OF MULTIPLE VALVES IN A WELL - A method of controlling operation of multiple valves interconnected in a tubular string in a subterranean well can include opening each of the valves, and then closing the valves in response to an application of pressure to the tubular string. A well system can include multiple valves interconnected in a tubular string, each of the valves including an actuator, and a valve control device interconnected in the tubular string. The valve control device may be connected to each of the valve actuators via multiple flow paths, whereby a pressure differential generated between the flow paths is also generated in each of the valve actuators. | 09-15-2011 |
20110226485 | DUAL BALL UPPER INTERNAL BLOW OUT PREVENTER VALVE - An internal blowout preventer used in drilling rigs for the discovery and production of hydrocarbons from the earth is disclosed. The internal blowout preventer has two independently and remotely operable blowout preventer valves in the same body, providing for greater service life and higher reliability during drilling operations. The two valves are loaded into the internal blowout preventer housing from a single end, and are operable by an actuator assembly. | 09-22-2011 |
20110232915 | SYSTEM, ASSEMBLY AND METHOD FOR PORT CONTROL - A port control system including a group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug; and at least one second group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug. A method is included. | 09-29-2011 |
20110232916 | BI-DIRECTIONAL FLAPPER/SEALING MECHANISM AND TECHNIQUE - An isolation valve can include a pivot connecting a closure member to an actuator member which displaces when the isolation valve is actuated between open and closed configurations, whereby the pivot displaces with the actuator member. Another isolation valve can include a pivot connecting a closure member to an actuator member which displaces when the isolation valve is actuated between open and closed configurations, and a profile formed in the isolation valve. The profile biases the closure member from an open position to a closed position when the isolation valve is actuated from the open configuration to the closed configuration. A method of actuating an isolation valve includes actuating the isolation valve between open and closed configurations, and wherein actuating the isolation valve comprises simultaneously displacing an actuator member, a closure member, and a pivot which pivotably connects the closure member to the actuator member. | 09-29-2011 |
20110232917 | ELECTRICALLY OPERATED ISOLATION VALVE - A method of operating an isolation valve can include transmitting a signal to a detector section of the isolation valve, and a control system of the isolation valve operating an actuator of the isolation valve in response to detection of the signal by the detector section. An isolation valve can include a detector section which detects a presence of an object in the isolation valve, and a control system which operates an actuator of the isolation valve in response to an object presence indication received from the detector section. A well system can include an isolation valve which selectively permits and prevents fluid communication between sections of a wellbore, the isolation valve including a detector section which detects a signal, and the isolation valve further including a control system which operates an actuator of the isolation valve in response to detection of the signal by the detector section. | 09-29-2011 |
20110240311 | Indexing Sleeve for Single-Trip, Multi-Stage Fracing - A sliding sleeve has a sensor that detects plugs (darts, balls, etc.) passing through the sleeves. A first insert on the sleeve can be hydraulically activated by the fluid pressure in the surrounding annulus once a preset number of plugs have passed through the sleeve. Movement of this first insert activates a catch on a second insert. Once the next plug is deployed, the catch engages it so that fluid pressure applied against the seated plug through the tubing string can moves the second insert. Once moved, the insert reveals port in the housing communicating the sleeve's bore with the surrounding annulus so an adjacent wellbore interval can be stimulated. The first insert may also be hydraulically activated after a preset time after a plug has passed through the sleeve. Several sleeves can be used together in various arrangements to treat multiple intervals of a wellbore. | 10-06-2011 |
20110253383 | System and method for servicing a wellbore - Disclosed herein is a wellbore servicing system, comprising a tubular string, a first sleeve system incorporated within the tubular string, the first sleeve system comprising a first sliding sleeve at least partially carried within a first ported case, the first sleeve system being selectively restricted from movement relative to the first ported case by a first restrictor while the first restrictor is enabled, and a first delay system configured to selectively restrict movement of the first sliding sleeve relative to the first ported case while the first restrictor is disabled; a second sleeve system incorporated within the tubular string, the second sleeve system comprising a second sliding sleeve at least partially carried within a second ported case, the second sleeve system being selectively restricted from movement relative to the second ported case by a second restrictor while the second restrictor is enabled. | 10-20-2011 |
20110278016 | VALVE, VALVING DEVICE AND METHOD - A valving device includes a tubular with a port and a sleeve slidably sealingly engaged with the tubular between a first position and a second position. The sleeve is configured to occlude the port when in the first position and uncover the port when in the second position. The valving device is configured such that pressure inside the tubular does not urge the sleeve toward the second position while pressure applied radially outwardly of the tubular and the sleeve urge the sleeve toward the second position. | 11-17-2011 |
20110278017 | SLIDING SLEEVE SUB AND METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT - A tubing string assembly is disclosed for fluid treatment of a wellbore The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off The tubing string can also be used where a ported tubing string is required to be run-m in a pressure tight condition and later is needed to be in an open-port condition A sliding sleeve in a tubular has a driver selected to be acted upon by an inner bore conveyed actuating device, the driver drives the generation of a ball stop on the sleeve. | 11-17-2011 |
20110284240 | MECHANISM FOR ACTIVATING A PLURALITY OF DOWNHOLE DEVICES - A mechanism for selectively activating a plurality of downhole pathways including a) a valve having: i) a sleeve coupled for movement between an open and normally closed position; and ii) a valve magnet set mounted to the sleeve; and b) a dart for pumping in hole including a dart magnet set matched to the valve magnet set such that the dart couples to the valve when in close proximity and, in turn, the sleeve moves from the closed position to the open position. | 11-24-2011 |
20110290504 | CONTROL SYSTEM - An improved control system for use in a subterranean well is described. The system comprises at least one apparatus positioned within the subterranean well, at least one power generation device positioned within the subterranean well, the at least one power generation device adapted to supply electrical power to the at least one apparatus and at least one control line positioned in the subterranean well. The at least one control line is adapted to supply a hydraulic pressure applied from surface to the at least one power generation device from which the at least one power generation device generates electrical power. | 12-01-2011 |
20110297392 | SUB-SEA CHEMICAL INJECTION METERING VALVE - An apparatus that includes a chemical injection management system. The chemical injection management system may include an interface configured to couple the chemical injection management system to a mineral extraction system. In addition, the chemical injection management system may include an ultrasonic flow meter. | 12-08-2011 |
20110297393 | INTELLIGENT COMPLETION SYSTEM FOR EXTENDED REACH DRILLING WELLS - Apparatus and methods for completing, treating, and/or producing a wellbore are provided. The apparatus can include a tubular body defining an inner bore, one or more injection inflow control devices, and one or more production inflow control devices. The one or more injection inflow control devices can include one or more first check valves in fluid communication with the inner bore, with each first check valve being configured to allow fluid to flow therethrough from the inner bore to a region of the wellbore, and to substantially block a reverse fluid flow therethrough. The one or more production inflow control devices can include one or more second check valves coupled to the tubular body, each second check valve being configured to allow fluid to flow therethrough from the wellbore to the inner bore and to substantially block a reverse fluid flow therethrough. | 12-08-2011 |
20110297394 | MAGNETORHEOLOGICAL BLOWOUT PREVENTER - A Blowout Preventer comprising a housing, one or more magnets and a magnetic fluid is described. More particularly, a Magnetorheological Blowout Preventer with a Magnetorheological Ram Head that conforms to virtually any cross sectional shape is described with ultra-reliable termination of natural gas and/or oil effluent flow resulting. | 12-08-2011 |
20110303418 | METHOD AND APPARATUS FOR REDUCING IMPACT FORCE IN A BALL-SEAT ASSEMBLY - A method of restricting fluid flow includes: releasing a ball into a fluid conduit and receiving the ball in a ball receiving element disposed at the fluid conduit and at least partially restricting fluid flow; and at least partially reflecting one or more pressure waves resulting from an impact between the ball and the ball receiving element by a reflective boundary disposed in the fluid conduit. | 12-15-2011 |
20110303419 | INSTALLATION OF LINES IN HIGH TEMPERATURE WELLBORE ENVIRONMENTS - An annular restrictor for use in a well can include a body which extends circumferentially about a tubular mandrel, and a section which, in cooperation with the body, restricts fluid flow through an annulus, a line being secured between the body and the section. A method of completing a well can include installing a line in an annular restrictor, and restricting fluid flow through an annulus, with the restricting being performed by the annular restrictor interconnected between steam injection valves. A method of attaching a line to a tubular string for use in a well can include covering the line with a section of an annular restrictor, and securing the section to a body of the annular restrictor, each of the section and the body having a flow restricting surface formed thereon, and the covering and securing steps being performed without splicing or making a connection in the line. | 12-15-2011 |
20110303420 | METHOD AND APPARATUS FOR USE WITH AN INFLOW CONTROL DEVICE - A technique includes running a completion assembly downhole into a well. The assembly includes a valve and a material that is adapted to initially configure the valve to prevent fluid flow through the valve in at least one direction. The technique includes performing a downhole completion operation in the well and disintegrating the material to allow the prevented fluid flow through a nozzle of the valve. The nozzle is used to regulate production or injection in the well. | 12-15-2011 |
20120006561 | METHOD AND APPARATUS FOR A WELL EMPLOYING THE USE OF AN ACTIVATION BALL - A system includes a tubular string that is adapted to be deployed downhole in a well and an activation ball. The activation ball is adapted to be deployed in the tubular string to lodge in a seat of the string. The ball includes a spherical body, which is formed from a metallic material that has a specific gravity less than about 2.0. | 01-12-2012 |
20120006562 | METHOD AND APPARATUS FOR A WELL EMPLOYING THE USE OF AN ACTIVATION BALL - A system includes a tubular string and a hollow ball. The tubular string is adapted to be deployed downhole in a well and includes a seat. An activation ball adapted to be deployed in the well to lodge in the seat. The ball includes an outer shell that forms a spherical surface. The outer shell forms an enclosed volume therein, and the outer shell is formed from a metallic material. | 01-12-2012 |
20120006563 | RETRIEVABLE INFLOW CONTROL DEVICE - A retrievable flow control device comprising a housing configured to sealably couple with a completion component. The housing may comprise a first port and a second port establishing a fluid pathway. The fluid pathway may regulate a fluid flow as the fluid flow passes through the fluid pathway. The housing may further comprise a coupling mechanism configured to releasably couple with a corresponding feature of the wellbore completion. The downhole flow control device may be configured to be retrievable independently of the completion component. The flow control device may comprise a check valve in the fluid pathway in order to substantially constrain the fluid flow to a single direction. In some cases, the flow control device may be configured to couple with a side pocket. In other cases, a concentric flow control device may be configured to couple with a screen base pipe, tubing, or stinger. | 01-12-2012 |
20120012334 | METHOD AND APPARATUS FOR USE WITH DOWNHOLE TOOLS HAVING GAS-FILLED CAVITIES - Methods and apparatus for use with gas-filled downhole tools are disclosed herein. A disclosed example method includes opening an isolation valve of a downhole tool, wherein the isolation valve is in fluid communication with first and second ports of the downhole tool, and wherein the first and second ports are in fluid communication with respective first and second ends of an interior cavity of the downhole tool; coupling a source of inert gas to the first port and flowing the inert gas into the interior cavity of the downhole tool to expel air from the interior cavity through the second port; closing the second port when the air is expelled from the interior cavity; and closing the isolation valve to seal the inert gas in the interior cavity. | 01-19-2012 |
20120018169 | DOWNHOLE DISPLACEMENT BASED ACTUATOR - A technique facilitates actuating a variety of components in a downhole environment. The technique utilizes displacement based activation of an atmospheric actuation chamber. Activation of the atmospheric actuation chamber may be initiated via a variety of mechanisms, including manipulation of a restraining device, translation of a seal, and/or destruction of a seal. The atmospheric actuation chamber is coupled in cooperation with the corresponding downhole component to enable selective activation of the downhole component. | 01-26-2012 |
20120024537 | ISOLATION VALVE WITH DEBRIS CONTROL AND FLOW TUBE PROTECTION - The present invention generally relates to an isolation valve with debris control. In one aspect, an isolation valve for use as part of a casing string is provided. The isolation valve includes a housing having a bore and a valve cavity. The isolation valve further includes a valve member movable between a first position in which the valve member obstructs the bore of the housing and a second position in which the valve member is disposed in the valve cavity. Further, the isolation valve includes a flow tube configured to allow movement of the valve member between the first and second positions. Additionally, the isolation valve includes an engagement assembly adapted to engage the flow tube to substantially prevent debris from entering the valve cavity when the valve member is in the second position. In another aspect, a method of operating an isolation valve in a wellbore is provided. | 02-02-2012 |
20120031624 | FLOW TUBE FOR USE IN SUBSURFACE VALVES - According to one or more aspects of the present disclosure, an engaging member for operating a subsurface valve between an open position and a closed position includes a bottom portion comprising a terminal end adapted for contacting a valve closure member, the bottom portion having a first material characteristic and an upper portion having a second material characteristic that is quantitatively different from the first material characteristic. The material characteristics include, without limitation, strength, coefficient of friction, and the modulus of elasticity. | 02-09-2012 |
20120031625 | FLOW CONTROL DEVICE AND FLOW CONTROL METHOD - The present invention relates to a method of improving flow stability for a multiphase fluid flowing through a tubular element ( | 02-09-2012 |
20120055680 | BLOW-OUT PREVENTER, AND OIL SPILL RECOVERY MANAGEMENT SYSTEM - An apparatus for containing and controlling the flow of hydrocarbons from a bore well or other earth formation including in certain aspects a housing enclosing a receiving and distribution chamber, said receiving and distribution chamber in fluid communication with and sealably connected to a top vertical tubular member and a bottom vertical tubular member, said top and bottom tubular members extending from said receiving and distribution chamber to the exterior of said housing, a cone aperture adapted to prevent or allow the flow of liquid into said top tubular member, at least one outlet passage between said receiving and distribution chamber and the exterior of said housing, valve means adapted to permit or prevent the flow of liquid through at least one of said outlet passages and, pump means adapted to facilitate the flow of hydrocarbons through at least one of said outlet passages. | 03-08-2012 |
20120055681 | DOWNHOLE VALVE TOOL AND METHOD OF USE - A downhole isolation valve for testing the integrity of a tubular within a wellbore includes a tubular body ( | 03-08-2012 |
20120061093 | MULTIPLE IN-FLOW CONTROL DEVICES AND METHODS FOR USING SAME - An apparatus controls flow of a fluid between a wellbore tubular and a wellbore using a particulate control device configured to be disposed in the wellbore and at least two parallel and directionally opposing flow paths in fluid communication with the particulate control device. | 03-15-2012 |
20120061094 | BALL-SEAT APPARATUS AND METHOD - An apparatus for restricting fluid flow includes: a ball receiving element disposed in a fluid conduit and configured to receive a ball that has been advanced through the fluid conduit and at least partially restrict fluid flow, the fluid conduit having a longitudinal axis; and at least one feature disposed at the fluid conduit and configured to at least one of reduce a rate of deceleration of the ball due to actuation of the apparatus and reduce pressure waves generated by an impact between the ball and the ball receiving element. | 03-15-2012 |
20120061095 | Apparatus and Method For Remote Actuation of A Downhole Assembly - An apparatus and method is disclosed for remotely operating a downhole tool within a wellbore. The wellbore extends from a ground or subsea surface downward into the earth. The apparatus includes a tool having a production assembly with at least one sleeve adapted for movement from a first sleeve position facilitating entry of formation fluids past the sleeve into the wellbore to a second sleeve position that retards entry of formation fluids. The downhole tool may be configured to resume production following fracturing, gravel packing or other operations without the need for additional trips into the well for the purpose of opening production sleeves. A fluid pressure pulse or electromagnetic signal or other signal may be delivered downhole for remote mechanical actuation of the apparatus. | 03-15-2012 |
20120067591 | METHOD AND APPARATUS FOR PRECISE CONTROL OF WELLBORE FLUID FLOW - A method for controlling flow of fluid from an annular space in a wellbore includes changing a flow restriction in a fluid flow discharge line from the wellbore annular space. The flow restriction is changed at a rate related to a difference between at least one of a selected fluid flow rate out of the wellbore and an actual fluid flow rate out of the wellbore, and a selected fluid pressure in the annular space and an actual pressure in the annular space. | 03-22-2012 |
20120067592 | SYSTEM FOR CONTROLLING FLOW OF AN ACTUATING FLUID - A technique utilizes a simplified valve system structure to facilitate actuation of tools, such as actuating pads in a steering section of a wellbore drilling assembly. A valve system may comprise a bi-stable actuator which controls two double-stage valves. Each of the double-stage valves is able to perform both charging and dumping functions which facilitate use of the valve system in a variety of downhole applications. In drilling applications, a single valve system is able to operate a plurality of actuating pads. | 03-22-2012 |
20120067593 | SYSTEM AND METHOD FOR CONTROLLING FLOW IN A WELLBORE - A technique facilitates controlling flow in a wellbore. One or more flow control valve assemblies may be designed for coupling with downhole well equipment. Each flow control valve assembly comprises a flow control valve which cooperates with a control module. The control module comprises a plurality of electrically controlled valves arranged to control flow of actuating fluid to the flow control valve. Each flow control valve assembly also comprises a hydraulic override system to enable hydraulic actuation of the flow control valve to a predetermined position when, for example, no electrical power is available for the electrically controlled valves of the control module. | 03-22-2012 |
20120067594 | SIGNAL OPERATED ISOLATION VALVE - A method of drilling a wellbore includes drilling the wellbore through a formation by injecting drilling fluid through a drill string and rotating a drill bit. The drill string includes a shifting tool, a receiver in communication with the shifting tool, and the drill bit. The method further includes retrieving the drill string from the wellbore through a casing string until the shifting tool reaches an actuator. The casing string includes an isolation valve in an open position and the actuator. The method further includes sending a wireless instruction signal to the receiver. The shifting tool engages the actuator in response to the receiver receiving the instruction signal. The method further includes operating the actuator using the engaged shifting tool, thereby closing the isolation valve and isolating the formation from an upper portion of the wellbore. | 03-22-2012 |
20120067595 | REMOTELY OPERATED ISOLATION VALVE - A method of operating an isolation valve in a wellbore includes: deploying a work string into the wellbore through a tubular string disposed in the wellbore. The work string comprises a deployment string, a shifting tool, and a bottomhole assembly (BHA). The tubular string comprises the isolation valve and an actuator. The method further includes rotating the actuator using the shifting tool, thereby opening or closing the isolation valve. The isolation valve isolates a formation from an upper portion of the wellbore in the closed position. | 03-22-2012 |
20120073826 | PRESSURE BALANCED DRILLING SYSTEM AND METHOD USING THE SAME - A well drilling system including: an annular valve; a well casing in fluid communication with the annular valve; a first check valve in fluid communication with the annular valve; a hydraulic cylinder including a first chamber having an inlet and an outlet, wherein the inlet of the first chamber is in fluid communication with an outlet of the first check valve; and a transfer unit including an inlet and an outlet, wherein the inlet of the transfer unit is in fluid communication with the outlet of the first chamber, the outlet of the transfer unit is in fluid communication with an inlet of a second check valve, and an outlet of the second check valve is in fluid communication with the annular valve. | 03-29-2012 |
20120073827 | DOWNHOLE CATCHER FOR AN ACTUATING BALL AND METHOD - A ball catching device has been invented that catches an actuator ball used in a wellbore to actuate a downhole tool. The device catches the ball downhole as it begins to flow back with fluids toward surface. The device is configured such that when a ball flows back with wellbore fluids, the ball can flow through the device and if the ball reverses direction, as by falling back due to decreased or stopped production back flow, then the device will catch the ball and keep it from falling back past the device into the well. | 03-29-2012 |
20120073828 | DOWNHOLE MATERIAL DELIVERY - A method of delivering material, typically lost circulation material (LCM), into a hole via a tubular string comprises: opening a bypass port in a tubular string located in a drilled hole, the bypass port being provided above fluid outlets in the distal end of the string; delivering material through the string from surface, the material passing through the bypass port and into the drilled hole; and locking a volume of fluid in the string between the bypass port and the fluid outlets such that fluid is prevented from passing from the hole into the string via the fluid outlets. | 03-29-2012 |
20120085548 | Downhole Tools and Methods for Selectively Accessing a Tubular Annulus of a Wellbore - A downhole tool is provided that selectively opens and closes an axial/lateral bore of a tubular string positioned in a wellbore used to produce hydrocarbons or other fluids. When integrated into a tubular string, the downhole tool allows individual producing zones within a wellbore to be isolated between stimulation stages while simultaneously allowing a selected formation to be accessed. The downhole tools and methods can be used in vertical or directional wells, and additionally in cased or open-hole wellbores. | 04-12-2012 |
20120090852 | Apparatus and method for compensating for pressure changes within an isolated annular space of a wellbore - Pressure relief devices comprise a chamber having a piston disposed therein. One side of the piston defines a hydrostatic chamber in fluid communication with an outside environment, such as an isolated wellbore annulus, through a port. The other side of the piston defines a sealed or isolated chamber. The pressure relief device permits changes in pressure in the isolated wellbore annulus to be distributed into the chambers so as to either reduce the pressure within the isolated wellbore annulus or increase the pressure within the wellbore annulus, both of which lessen the likelihood that the change in pressure within the isolated wellbore annulus will damage wellbore components disposed therein. | 04-19-2012 |
20120103627 | SYSTEM AND METHOD FOR CONTROL OF TOOLS IN A SUBTERRANEAN COMPLETION APPLICATION - A technique utilizes a completion system deployed for use in select groundwater applications. The completion system comprises a plurality of sensors, e.g. pressure probes, and a plurality of multi-function tools which are positioned to control the opening and closing of corresponding pumping ports and/or other devices. The multi-function tools can be controlled individually via communication signals, thus avoiding the need to retrieve and/or reconfigure portions of the completion to make operational changes to the pumping ports and/or other devices. | 05-03-2012 |
20120103628 | Method and Apparatus for Single-Trip Time Progressive Wellbore Treatment - A single trip multizone time progressive well treating method and apparatus that provides a means to progressively stimulate individual zones through a cased or open hole well bore. This system allows the operator to use pre-set timing devices to progressively treat each zone up the hole. At each zone the system automatically opens a sliding sleeve and closes a frangible flapper, at a pre-selected point in time. An adjustable preset timing device is installed in each zone to allow preplanned continual frac operations for all zones. The apparatus is present as a “Frac Module” that can consist of three major components, a packer, a timing pressure device, and a sliding sleeve/isolation device. A hydraulic packer may be removed or replaced with a swellable type packer. | 05-03-2012 |
20120111574 | DELAYED OPENING WELLBORE TUBULAR PORT CLOSURE - A wellbore tubular port closure system includes a mechanism to delay the opening of the port after the port closure has been actuated to open. A method and apparatus incorporate the wellbore tubular port closure system with a port opening delay mechanism configured to act after actuation of the pressure responsive mechanism to delay full movement of the port-closure to the port-open position until after a selected time has lapsed. | 05-10-2012 |
20120111575 | Subsurface Safety Valve Flapper - A flapper for use as a component of a safety valve designed for deployment in a well bore having well bore fluids. The flapper includes a flapper body forming a flapper valve bore therethrough. The flapper body forms a groove proximate to the flapper bore. The flapper also includes a plunger member sized and configured to be received in the flapper valve bore. The plunger member includes a first end portion and a second end portion. Additionally, the flapper includes a leaf spring including a primary end portion and a secondary end portion, the primary end portion of the leaf spring detachably attached to the second end portion of the plunger member and unattached to the flapper body and the secondary end portion of the leaf spring being sized and configured to be received and retained in the groove and to bias the plunger member into the flapper valve bore. | 05-10-2012 |
20120111576 | DOWNHOLE TOOL - A downhole bypass valve comprises a tubular body including a side port and a sleeve axially movably mounted in the body and normally biased to a closed position to close the side port. An activating device is configured to be pumped or dropped into the body to engage the sleeve and permit movement of the sleeve to an open position and open the side port. A latch has a part in the body and a part in the activating device, the parts of the latch configured to engage and retain the sleeve in the open position. The activating device is further operable to disengage from and translate through the sleeve and the parts of the latch are further operable to disengage and permit the sleeve to return to the closed position. | 05-10-2012 |
20120111577 | VARIABLE FLOW RESISTANCE SYSTEM WITH CIRCULATION INDUCING STRUCTURE THEREIN TO VARIABLY RESIST FLOW IN A SUBTERRANEAN WELL - A flow control device can include a surface that defines a chamber and includes a side perimeter and opposing end surfaces, a greatest distance between the opposing end surfaces being smaller than a largest dimension of the opposing end surfaces, a first port through one of the end surfaces, and a second port through the surface and apart from the first port, the side perimeter surface being operable to direct flow from the second port to rotate about the first port. Another device can include a cylindroidal chamber for receiving flow through an inlet and directing the flow to an outlet, a greatest axial dimension of the cylindroidal chamber being smaller than a greatest diametric dimension of the cylindroidal chamber, the cylindroidal chamber promoting rotation of the flow based on a characteristic of the inflow through the inlet. The device can have a flow path structure in the cylindroidal chamber. | 05-10-2012 |
20120125626 | METHOD AND APPARATUS FOR STIMULATING PRODUCTION IN A WELLBORE - In an aspect, method for stimulating fluid flow in a wellbore is provided, the method including placing a fluid jetting valve in a tubular, conveying the tubular in a wellbore with the fluid jetting valve in a closed position and changing a pressure within the tubular to move the fluid jetting valve to an open position. In addition, the method includes directing a stimulation fluid through the open fluid jetting valve into a wall of the wellbore and moving the fluid jetting valve to a permanently closed position via a passive control device. | 05-24-2012 |
20120125627 | SLEEVE VALVE - An apparatus and method for selectably opening a valve body having a central passage and a plurality of apertures therethrough. The apparatus comprises a sleeve slidably located within the central passage of the valve body adapted to selectably cover or uncover the apertures. The apparatus further comprises a shifting tool slidably locatable within the sleeve having at least one sleeve engaging member selectably extendable therefrom in parallel to a central axis thereto engagable upon the sleeve wherein the shifting tool is moveable. The method comprises positioning the shifting tool within the sleeve in a first or second position, extending the sleeve engaging members from the shifting tool in parallel to a central axis of the shifting tool into engagement upon the sleeve, and axially moving the shifting tool and the sleeve to the other of the first or second positions. | 05-24-2012 |
20120125628 | CONTROL APPARATUS FOR DOWNHOLE VALVES - There is herein defined a control apparatus operable to control the opening and closing of downhole flow control devices. The apparatus includes first and second indexing modules, which are arranged in fluid communication with a respective downhole control device. Each of the modules includes two inlet ports and two outlet ports, where the inlet ports are each in fluid communication with one of two control lines. The first module is operable to open and close a first downhole control device on application of fluid pressure through the first control line and the second module is operable to open and close a second downhole control device on application of fluid pressure through the second control line. | 05-24-2012 |
20120125629 | DOWNHOLE TOOL - An activating device is provided for location in downhole tubing. The device defines an activation profile which is initially maintained at a larger diameter than a tubing seat, such that the device may land on and be held up by the seat. The profile may be subsequently re-configured to radially retract, allowing the device to pass through the seat. | 05-24-2012 |
20120132438 | DOWNHOLE TOOL AND METHOD - A work string tool to be operably associated with a weight-set packer tool uses pressure applied by fluid circulated from the surface above the weight-set packer, to deploy a hydraulic hold-down anchor mechanism above the packer to reduce the risk of unsetting during a high pressure “positive” wellbore integrity test. An axial bore of a tool tubular body houses first and second inner sleeves, and is configured to accommodate independent axial movement of the sleeves to provide multiple fluid flowpath configurations through the tool which allow use of circulation fluid to pressure to circulate a ball obturator to a valve seat in a sleeve when a configuration change is required to deploy or release the anchor means. | 05-31-2012 |
20120138309 | STACKABLE MULTI-BARRIER SYSTEM AND METHOD - A multi-barrier system includes a first valve in fluid communication with a lower completion, and a second valve in fluid communication with the lower completion. The first valve and the second valve are positioned proximate an uphole extent of the lower completion, and a packer located proximate the first valve and the second valve is closable in response to retrieving an upper completion. | 06-07-2012 |
20120138310 | STACKABLE MULTI-BARRIER SYSTEM AND METHOD - A multi-barrier system includes a first valve in fluid communication with a lower completion that is electrically actuatable and inductively coupled to an upper completion. Also included is a second valve in fluid communication with the lower completion, both the first valve and the second valve, positioned proximate an uphole extent of the lower completion, are closable in response to retrieving the upper completion and openable subsequent reengagement of an upper completion. | 06-07-2012 |
20120138311 | Method and Apparatus for Single-Trip Time Progressive Wellbore Treatment - A single trip multizone time progressive well treating method and apparatus that provides a means to progressively stimulate individual zones through a cased or open hole well bore. The operator can use pre-set timing devices to progressively treat each zone up the hole. At each zone the system automatically opens a sliding sleeve and closes a frangible flapper, at a preselected point in time. An adjustable preset timing device is installed in each zone to allow preplanned continual frac operations for all zones. An optional “Stand-Down-Mode” can be integrated into the timing system so that if pumping stops the timers go into a sleep mode until the pumping resumes. The apparatus can consist of three major components: a packer, a timing pressure device, and a sliding sleeve/isolation device. The packer may be removed. | 06-07-2012 |
20120152564 | HORIZONTAL PRODUCTION TREE AND METHOD OF USE THEREOF - A horizontal production tree for use on a land-based surface well head. The horizontal production tree may be maintained in place on the well head throughout the life of well, even during fracing. | 06-21-2012 |
20120160513 | TUBING HANGER SHUTTLE VALVE - A wellhead assembly made up of a wellhead housing, a production tree mounted on the wellhead housing, tubing suspended into a wellbore from within the wellhead housing, and an annulus between the tubing and the wellhead housing. A shuttle valve is provided within a tubing hanger that supports the tubing from within the wellhead housing. An accumulator is disposed in the annulus that is in fluid communication with a closed position port on the shuttle valve. Pressure is maintained in the accumulator for closing the shuttle valve when a force for opening the valve is removed. | 06-28-2012 |
20120160514 | Auxiliary Flow Line Filter for Sampling Probe - An apparatus includes a downhole tool for conveyance in a wellbore extending into a subterranean formation. The downhole tool includes a focused sampling probe that includes a piston movable between an open position and a closed position, an auxiliary filter coupled to the piston, and a scraper that interfaces with the auxiliary filter. Movement of the piston may cause the auxiliary filter to move against the scraper. | 06-28-2012 |
20120160515 | System and Method for Operating Multiple Valves - A valve system for providing fluid flow through radial openings disposed along an axial length of a tubular. The tubular comprises at least one valve group containing at least two valves operable by one drop ball. An inset | 06-28-2012 |
20120168174 | METHOD AND APPARATUS FOR MULTI-DROP TOOL CONTROL - A hydraulically balanced multiple drop well completion has a plurality of hydraulic control lines each of which communicates hydraulic inputs and a plurality of hydraulically operated tools numbering greater than or equal to the number of hydraulic control lines. Each of the hydraulic control lines is connected to at least one of the hydraulically operated tools to communicate hydraulic inputs to actuate the hydraulically operated tools. Each of the hydraulically operated tools discharges hydraulic fluid to one of the hydraulic control lines other than the hydraulic control line from which it receives the controlling hydraulic input. | 07-05-2012 |
20120168175 | METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW INTO A BOREHOLE - In one aspect, a flow control apparatus for use in a borehole is provided. The apparatus includes a tubular body, a check valve sleeve and a check valve, wherein a change of a pressure inside the check valve sleeve causes the check valve to control fluid communication between the check valve sleeve and the borehole outside the tubular body. | 07-05-2012 |
20120181043 | ELECTRIC SUBMERSIBLE PUMPING COMPLETION FLOW DIVERTER SYSTEM - A technique provides a system and methodology for enhancing the operational life of an electric submersible pumping system. A completion is combined with a flow diverter valve and is positioned downhole in a wellbore. An electric submersible pumping system is coupled into the completion and the flow diverter valve is oriented to control fluid flow with respect to the electric submersible pumping system. For example, the flow diverter valve may be automatically operable to direct well fluid to the electric submersible pumping system when the pumping system is operating and to direct well fluid to bypass the electric submersible pumping system when the pumping system is not operating. | 07-19-2012 |
20120186823 | Expanding mill having camming sleeve for extending cutting blade - Downhole cutting tools comprise a mandrel, a housing, a sleeve and a cutting blade. The mandrel comprises an inner wall surface defining a bore, and an outer wall surface. The housing is secured to the outer wall surface of the mandrel and comprises an opening. The sleeve is engaged with the outer wall surface of the mandrel. The sleeve comprises a profile that is operatively associated with a profile of the cutting blade such that movement of the sleeve causes the profile of the piston to slide along the profile of the cutting blade. In so doing, the cutting blade is radially extended outward through the opening in the housing to abrade an object located outside the housing. Movement of the sleeve can be achieved by pumping fluid down a bore in the mandrel to slide the sleeve long the outer wall surface of the mandrel. | 07-26-2012 |
20120186824 | SELECTIVE SLEEVE SYSTEM AND METHOD OF MOVING A SLEEVE - A selective sleeve system includes, a tubular, a sleeve movably disposed at the tubular, and a movable member having at least one dog radially biased and configured to be radially displaceable into a recess. The at least one dog is positionable perimetrically adjacent to at least one tab, subsequent displacement into the recess to radially overlap with the sleeve sufficiently to move the sleeve relative to the tubular upon movement of the movable member relative to the tubular. | 07-26-2012 |
20120186825 | Remote Actuation Testing Tool for High Pressure Differential Downhole Environments - A remote actuation tool equipped with an intermediate volumetric mechanism for enhanced tool durability in high pressure differential downhole environments. Valve segments of the tool are actuated by power available due to a pressure differential between atmospheric and hydrostatic chambers of the tool. Yet, the intermediate volumetric mechanism, whether in the form of a discrete chamber or a hydraulic line system, minimizes stresses of the differential pressure on tool hydraulics. Thus, failure rates are substantially reduced. So, for example, the tool may be reliably employed in downhole environments which present differential pressures in excess of about 30,000 PSI. | 07-26-2012 |
20120199363 | DOWNHOLE TOOL ACTUATION - A downhole tool including a cam housing disposed in a central bore of a sub; a cam piston having a cam track disposed in the cam housing; a rotary piston having a rotary value and an auxiliary track disposed in the cam housing; a guide pin extending through the cam housing into the cam track; and a position pin extending through a cam flange into the auxiliary track. Also, a method of actuating a downhole tool, the method including disposing the downhole tool in a wellbore, wherein the downhole tool comprises a cam piston and a rotary piston; providing a flow of fluid through a central bore of the downhole tool at a working flow rate; changing the flow of fluid through the central bore of the downhole tool to a trigger range, thereby rotating a rotary valve of the rotary piston. | 08-09-2012 |
20120199364 | RESETTABLE PRESSURE CYCLE-OPERATED PRODUCTION VALVE AND METHOD - A method of actuating multiple valves in a well can include applying one or more pressure cycles to the valves without causing actuation of any of the valves, and then reducing pressure applied to the valves, thereby resetting a pressure cycle-responsive actuator of each valve. A pressure cycle-operated valve for use in a well can include a closure member, a piston which displaces in response to pressure applied to the valve, and a ratchet mechanism which controls relative displacement between the piston and the closure member. The ratchet mechanism may permit relative displacement while one or more pressure cycles are applied to the valve, and the ratchet mechanism may prevent relative displacement in response to a pressure sequence of: a) a reduction in pressure applied to the valve, b) a predetermined number of pressure cycles applied to the valve, and c) an increase in pressure applied to the valve. | 08-09-2012 |
20120199365 | CHEMICAL INJECTION REGULATION MECHANISM - A regulation mechanism configured to automatically close off fluid flow through a line based on flow rate exceeding a predetermined level. This mechanism may be particularly beneficial when employed in conjunction with downhole chemical injection systems that are directed at well locations prone to becoming low pressure in nature. That is, in a conventional system, once the inherent pressure at the downhole end of an injection line exceeds that of the adjacent downhole environment, the flow rate of the column of fluid in the line may naturally increase as chemical is unintentionally emptied into the well. However, use of embodiments of the flow-based regulation mechanism detailed herein may near-automatically prevent such undesirable emptying of chemical into a low pressure well. | 08-09-2012 |
20120199366 | ACTUATOR AND METHOD - An actuator or valve for use in a well comprising: an obstructing member, such as a piston, moveable between: a first position and a second position; and a retaining member, such as a ball, moveable between: a retaining position which retains the obstructing member in the first position; and, a release position which does not retain the obstructing member in the first position and/or allows or causes the obstructing member to move to the second position; wherein the retaining member is adapted to move in use, from one of the retaining position and release position to the other of the retaining position and release position, at least in part, by centrifugal forces caused by rotation of the actuator/valve. Thus at least some control of the actuation of the actuator/valve may be afforded by rotation thereof. In preferred embodiments some control is also afforded by fluid flow contacting the actuator/valve. Embodiments of the invention provide a convenient apparatus and method to control equipment in a well, especially to control a reamer for widening a well. | 08-09-2012 |
20120205120 | Method for individually servicing a plurality of zones of a subterranean formation - A method of servicing a subterranean formation comprising providing a first sleeve system comprising a first one or more ports and being transitionable from a first mode to a second mode and from the second mode to a third mode, and a second sleeve system comprising a second one or more ports and being transitionable from a first mode to a second mode and from the second mode to a third mode, wherein, in the first mode and the second mode, fluid communication via the one or more ports of the first or second sleeve system is restricted, and wherein, in the third mode, fluid may be communicated via the one or more ports of the first or second sleeve system, transitioning the first and second sleeve systems to the second mode, and allowing the first sleeve system to transition from the second mode to the third mode. | 08-16-2012 |
20120205121 | System and method for servicing a wellbore - A wellbore servicing system, comprising a sleeve system comprising a ported case, a sliding sleeve within the case and movable between a first sleeve position in which the sleeve restricts fluid communication via the case and a second sleeve position in which the sleeve does not, a radially divided segmented seat movable between a first seat position in which the seat restricts movement of the sleeve and a second seat position in which the seat does not, and a sheath covering a portion of the seat, the sleeve system being transitionable from a first, to a second, to a third mode, in the first mode, the sleeve is in its first position and the seat in its first position, in the second mode, the sleeve is in its first position and the seat in its second position, and, in the third mode, the sleeve is in its second position. | 08-16-2012 |
20120205122 | FLOW CONTROL DEVICE AND METHODS FOR USING SAME - An apparatus for controlling flow of a fluid includes a closure member, a biasing member applying a biasing force to the closure member, and a sealing member receiving the closure member. A dampener is operatively connected to the closure member and may resist a force applied to the closure member. A fluid seal may be formed when the biasing member presses the closure member against the sealing member. The apparatus may include a wellbore tubular in which the fluid conduit is formed and the closure member and sealing member may cooperate to control fluid flow along the fluid conduit. The apparatus may include an actuator configured to control the force applied to the closure member. The actuator may adjust the biasing force, and/or the dampening force. Also, a controller may control the actuator and may be responsive to a signal generated at a surface location, a signal generated at a downhole location, and/or a signal generated by a sensor. | 08-16-2012 |
20120211241 | REMOTELY OPERATED PRODUCTION VALVE AND METHOD - A method of actuating multiple valves in a well can include applying a pressure cycle to the valves without causing actuation of any of the valves, and then simultaneously reducing pressure applied to the valves, thereby actuating the valves. Another method can include releasing a locking device of each valve which prevents actuation, and then reducing pressure applied to the valves, thereby actuating the valves. A valve can include a port which provides for fluid communication between an exterior and an interior of the valve, a closure member which selectively permits and prevents fluid flow through the port, the closure member permits flow through the port in response to a decrease in a pressure differential from the interior to the exterior of the valve, and a locking device which prevents displacement of the closure member, the locking device being released in response to mechanical force applied to the locking device. | 08-23-2012 |
20120211242 | MULTI-STAGE VALVE ACTUATOR - An actuator assembly for effective interventionless activation of a valve in wells of multilateral architecture. The assembly may be pressure actuated from an oilfield surface even in certain circumstances where another valve in another leg of the well has been opened in a manner compromising pressure control of the well. Due to the multi-stage nature of the actuator, pressure based activation remains viable as a result of supplemental and/or fail-safe modes of actuation, for example, where such pressure control becomes compromised. | 08-23-2012 |
20120211243 | METHOD AND APPARATUS FOR AUTONOMOUS DOWNHOLE FLUID SELECTION WITH PATHWAY DEPENDENT RESISTANCE SYSTEM - Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve. | 08-23-2012 |
20120217021 | ACTIVATION DEVICE FOR USE IN A DOWNHOLE WELL - An activation device for use in a downhole well for activation of a downhole tool in the well. The downhole tool has a seat adapted to engage the activation device. The activation device can travel through a borehole of the downhole well to reach the seat. The activation device has an outer layer and a core. The material of the outer layer resists erosion by drilling fluid when the activation device is in the borehole. The material of the core is eroded by drilling fluid when the activation device is engaged in the seat. The activation device is then able to pass through the seat. There is also described a method of operating a downhole tool having a seat for engaging an activation device. The method includes the step of eroding at least a portion of the activation device with drilling fluid until it can pass through the seat. | 08-30-2012 |
20120227980 | SELECTIVE DART SYSTEM FOR ACTUATING DOWNHOLE TOOLS AND METHODS OF USING SAME - Plug element systems comprise a tubular member having at least two seats. An eccentrically-shaped plug member comprises an upper end portion and a lower end portion. The upper end portion comprises an upper end diameter can be less than, greater than, or equal to a lower end portion diameter of the lower end portion. The eccentric shape of the plug member permits it to pass through a first seat and land on a second seat comprising a second seat length where both the first seat and the second seat comprise substantially equal inner seat diameters. | 09-13-2012 |
20120227981 | REAL TIME DOWNHOLE INTERVENTION DURING WELLBORE STIMULATION OPERATIONS - A method for completing a wellbore having a plurality of stimulation valves disposed therein at longitudinally spaced apart locations includes moving a spoolable rod into the wellbore. The rod includes a plurality of spaced apart sensors therein. At least one valve operating dart is applied to an exterior of the spoolable rod. The dart is configured to engage a selected one of the stimulation valves. A position of the at least one dart is estimated during pumping of fluid into the wellbore by measuring output of the sensors in the rod. | 09-13-2012 |
20120227982 | FLOW STOP VALVE - A flow stop valve ( | 09-13-2012 |
20120227983 | SAFETY VALVE CONTROL SYSTEM AND METHOD OF USE - A safety valve control system may include a remotely operable control assembly, a first transducer, a valve assembly, and a compressor assembly in communication with the control assembly. The control assembly is operable to actuate the pump and valve assemblies to supply fluid to actuate the safety valve into open and closed positions, in response to one or more signals received from the first transducer. A method of operation may include maintaining the safety valve in an open or closed position while sensing a physical property with the control system; communicating a signal corresponding to the sensed physical property to the control system; and automatically closing or opening the safety valve in response to a comparison of the sensed physical property to a pre-set condition. | 09-13-2012 |
20120234557 | METHOD AND APPARATUS FOR AUTONOMOUS DOWNHOLE FLUID SELECTION WITH PATHWAY DEPENDENT RESISTANCE SYSTEM - Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve. | 09-20-2012 |
20120241167 | FLOW ACTIVATED SENSOR ASSEMBLY - A sensor assembly for detection of fluid flow signaling over a tubular conveyance. The assembly may be employed for activation of a variety of different downhole actuators such as firing heads for perforating guns or hydrostatic set modules for packer deployment. The assembly is configured with a flow translation device which is disposed in a manner exposed to fluid flow directed through an oilfield tubular coupled to the assembly. Thus, a detector coupled to the translation device may obtain mechanical data from the device which is reliably indicative of the flow, irrespective of the physical nature of the flow itself. As such, enhanced reliability for subsequent actuator firing based on the flow signaling may be achieved. | 09-27-2012 |
20120241168 | METHOD AND SYSTEM FOR SEGMENTAL FLOW CONTROL IN OIL-GAS WELL - A method and a system for segmental flow control in an oil-gas well are disclosed. The oil-gas well includes a first annular space ( | 09-27-2012 |
20120255738 | MULTI-BARRIER SYSTEM AND METHOD - A multi-barrier system includes a first valve and a second valve that are both in fluidic communication with a lower completion. The first valve and the second valve are positioned proximate an uphole extent of the lower completion, and a member in operable communication with the first valve and the second valve. The system is configured such that both the first valve and the second valve are open when the member is in a first position, the first valve is closed and the second valve is open when the member in a second position, the first valve is open and the second valve is closed when the member is in a third position, and the first valve and the second valve are both closed when the member is in a fourth position. The first valve and the second valve are closable in response to retrieval of an upper completion. | 10-11-2012 |
20120255739 | SELECTIVELY VARIABLE FLOW RESTRICTOR FOR USE IN A SUBTERRANEAN WELL - A variable flow resistance system for use with a subterranean well can include a flow chamber through which a fluid composition flows, the chamber having at least two inlets, and a flow resistance which varies depending on proportions of the fluid composition which flow into the chamber via the respective inlet flow paths, and an actuator which varies the proportions. The actuator may deflect the fluid composition toward one of the inlet flow paths. A method of variably controlling flow resistance in a well can include changing an orientation of a deflector relative to a passage through which a fluid composition flows, thereby influencing the fluid composition to flow toward one of multiple inlet flow paths of a flow chamber, the chamber having a flow resistance which varies depending on proportions of the fluid composition which flow into the chamber via the respective inlet flow paths. | 10-11-2012 |
20120255740 | METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW IN AN AUTONOMOUS VALVE USING A STICKY SWITCH - Apparatus and methods are described for autonomously controlling fluid flow in a tubular in a wellbore. A fluid is flowed through an inlet passageway into a biasing mechanism. A fluid flow distribution is established across the biasing mechanism. The fluid flow distribution is altered in response to a change in the fluid characteristic over time. In response, fluid flow through a downstream sticky switch assembly is altered, thereby altering fluid flow patterns in a downstream vortex assembly. The method “selects” based on a fluid characteristic, such as viscosity, density, velocity, flow rate, etc. The biasing mechanism can take various forms such as a widening passageway, contour elements along the biasing mechanism, or a curved section of the biasing mechanism passageway. The biasing mechanism can include hollows formed in the passageway wall, obstructions extending from the passageway wall, fluid diodes, Tesla fluid diodes, a chicane, or abrupt changes in passageway cross-section. | 10-11-2012 |
20120261136 | Selectively activatable and deactivatable wellbore pressure isolation device - An apparatus comprising a tubular body defining a flowbore, a first valve that, when activated, restricts fluid communication via the flowbore in a first direction and allows fluid communication in a second direction, and, when deactivated, allows fluid communication in the first and second directions, a first sleeve slidable from a first to a second position that, when in the first position, the first valve is activated, and, when in the second position, the first valve is deactivated, a second valve, that, when activated, restricts fluid communication in the first direction and allows fluid communication in the second direction, and, when deactivated, allows fluid communication in the first and second directions, and a second sleeve slidable from a first to a second position, that, when in the first position, the second valve is deactivated, and, when in the second position, the second valve is activated. | 10-18-2012 |
20120261137 | FLOW CONTROL SYSTEM - A technique facilitates controlling flow of fluid along a flow passage. A flow control assembly is placed along a flow passage, and a bypass is routed past the flow control assembly. Flow along the bypass is controlled by a flow bypass mechanism which may be operated via a pressure or other interventionless application. The pressure, or other interventionless application, is used to actuate the flow bypass mechanism so as to selectively allow flow through the bypass. | 10-18-2012 |
20120267119 | INTERVENTIONLESS OPERATION OF DOWNHOLE TOOL - A technique facilitates actuation of a downhole tool, such as a valve, in a simple, rapid, and cost-effective manner. The technique comprises installing the downhole tool with a trip saver. The trip saver can be actuated by increasing a tubing pressure or other suitable pressure source beyond a threshold level. Once the trip saver is actuated, a fluid under suitable pressure is provided to a downhole tool through a passageway opened via the trip saver. This enables actuation of the downhole tool to a desired state. | 10-25-2012 |
20120273223 | Load balancing spherical diameter single seat ball system - A ball valve comprises a housing, a first seat surface, a second seat surface, wherein the first seat surface and the second seat surface are fixed relative to each other, and a ball rotatably movable within the housing and contacting at least one of the first seat surface and the second seat surface to form a seal within the ball valve; wherein pressure acting in a first direction and in a second direction opposite the first direction increases the contact pressure of the first seat surface and the second seat surface with the ball. | 11-01-2012 |
20120273224 | Electronic Control System for a Downhole Tool - An electronic control system for a downhole tool controls an operational state of the downhole tool. The electronic control system receives a signal from uphole, and drives a motor to operate a valve, alternately fluidly connecting a chamber in the valve to drilling fluid in a bore of the downhole tool, causing an activation mechanism to configure the downhole tool into a first state, and fluidly connecting the chamber to an annulus surrounding the downhole tool, venting mud into the annulus. | 11-01-2012 |
20120273225 | COLLAPSE SENSING CHECK VALVE - A method and apparatus for a pressure relief valve assembly. The valve assembly may be coupled to one or more casings and/or tubular members to control fluid communication therebetween. The valve assembly is a one-way valve assembly that relieves pressure within an annulus formed between adjacent casings and/or tubular members to prevent burst or collapse of the casings and/or tubular members. The valve assembly is resettable downhole. | 11-01-2012 |
20120273226 | ANNULAR PRESSURE RELEASE SUB - A method and apparatus for a pressure relief valve assembly. The valve assembly may be coupled to one or more casings and/or tubular members to control fluid communication therebetween. The valve assembly is a one-way valve assembly that relieves pressure within an annulus formed between adjacent casings and/or tubular members to prevent burst or collapse of the casings and/or tubular members. The valve assembly is resettable downhole. | 11-01-2012 |
20120273227 | CASING RELIEF VALVE - A pressure relief valve assembly may be coupled to one or more casings and/or tubular members to control fluid communication therebetween. The valve assembly is a one-way valve assembly that relieves pressure within an annulus formed between adjacent casings and/or tubular members to prevent burst or collapse of the casings and/or tubular members. The valve assembly includes a tubular body having a port for fluid communication and a valve ring disposed within the tubular body, the valve ring having a flap for closing the port, wherein the flap is configured to flex from a closed position to an open position in response to a pressure differential. In another embodiment, the valve assembly also includes a retainer sleeve movable from an engaged position for maintaining the flap in a closed position to a disengaged position to allow the flap to open. | 11-01-2012 |
20120279722 | TUBULAR SEATING SYSTEM AND METHOD OF SEATING A PLUG - A tubular seating system includes a seat disposed at a deformable first tubular which is sealable with a plug such that pressure is buildable thereagainst. A second tubular in operable communication with the deformable first tubular defining a support cavity therebetween is configured such that pressure within the support cavity provides support to the seat. | 11-08-2012 |
20120279723 | Downhole Tool - A downhole tool comprising an inner sleeve with a plurality of sleeve ports and a housing positioned radially outwardly of the inner sleeve and having a plurality of housing ports, with the housing and inner sleeve partially defining a space radially therebetween. The space is occupied by a shifting sleeve. A fluid path extends between the interior flowpath of the tool and the space. A fluid control device, occupies at least portion of the fluid path, and may selectively permit fluid flow, and thus pressure communication, into the space to cause a differential pressure across the shifting sleeve. When a sufficient differential pressure is reached, the shifting sleeve is moved from a first position to a second position, which opens the communication paths through the housing and sleeve ports between the interior flowpath and exterior of the tool. | 11-08-2012 |
20120285702 | SYSTEM AND METHOD FOR ACTUATING TOOLS DOWNHOLE - A technique facilitates actuation of a downhole tool in a well string. The downhole tool may be actuated hydraulically via the controlled flow of a hydraulic fluid under pressure to the downhole tool through a port. Flow of the pressurized fluid through the port is controlled by a barrier member which may be opened by a plunger working in cooperation with the barrier member. Movement of the plunger is controlled by selectively increasing the pressure acting on the plunger through, for example, actuation of an expansion device or other suitable device. | 11-15-2012 |
20120292044 | TELEMETRIC CHEMICAL INJECTION ASSEMBLY - A chemical injection assembly with telemetric capacity and a single fluid injection line capable of reaching multiple downhole injection points. The assembly may take advantage of downhole power telemetry modules so as to intelligently power and direct actuator valves at any of a number of different injection points. So, for example, the need for cumbersome and expensive usage of different delivery lines dedicated to serve different delivery points with the same fluid may be avoided. | 11-22-2012 |
20120305265 | Cluster Opening Sleeves for Wellbore - A downhole sleeve has an insert movable in the sleeve's bore from a closed condition to an opened condition when a ball dropped in the bore engages an indexing seat in the sliding sleeve. In the closed condition, the insert prevents communication between the bore and the sleeve's port, while the insert in the opened condition permits communication between the bore and port. Keys of a seat extend into the bore to engage the ball and to move the insert open. After opening, the keys retract so the ball can pass through the sleeve to another cluster sleeve or to an isolation sleeve of an assembly. Insets or buttons disposed in the sleeve's port temporarily maintain fluid pressure in the sleeve's bore so that a cluster of sleeves can be opened before treatment fluid dislodges the button to treat the surrounding formation through the open port. | 12-06-2012 |
20120312546 | WATER HAMMER MITIGATING FLOW CONTROL STRUCTURE AND METHOD - A water hammer mitigating flow control structure for a downhole completion including a tubular member configured for the downhole environment. A valve member in operable communication with the tubular member and positionable with respect to the tubular member to allow or prevent fluid movement through the tubular member. An absorber in operable communication with the valve member and configured to allow movement of the valve member the movement absorbing a pressure rise against the valve member in use. Also included is a method for mitigating water hammer in a flow control structure for a downhole completion | 12-13-2012 |
20120312547 | Responsively activated wellbore stimulation assemblies and methods of using the same - A system for servicing a subterranean formation comprising a wellbore completion string comprising a first master activatable stimulation assembly, a first slave activatable stimulation assembly, wherein the first slave activatable stimulation assembly activates responsive to activation of the first master stimulation assembly; a second master activatable stimulation assembly, and a second slave activatable stimulation assembly, wherein the second slave activatable stimulation assembly activates responsive to activation of the second master stimulation assembly. | 12-13-2012 |
20120312548 | IN-BORE BLOW OUT PREVENTER METHOD AND APPARATUS - Existing BOP devices are complex electromechanical systems exploiting hydraulic activation of pipe rams and/or shear rams. With tens of thousands of oil wells in the 1,500 oil fields that account for 97% of global production of the over 40,000 oil fields identified to date and failure rates as high as 50% in disaster situations it is evident that a simpler, increased reliability approach would be beneficial to the oil and gas industries. It would be further beneficial if the BOP was automatic requiring no monitoring locally to the BOP or remotely from the rig or production facility. | 12-13-2012 |
20120318525 | TUBULAR VALVING SYSTEM, BODY AND METHOD OF OPENING - A valving system includes, a tubular having a seat, and a body with a bore therethrough having a surface sealably engagable with the seat, the body being rotatable relative to the tubular between at least a first position, a second position and a third position, the first position occluding flow between an inside of the tubular and the bore the second position providing fluidic communication between the inside of the tubular and the bore via at least one cavity formed in the surface and a third position providing direct fluidic communication between the inside of the tubular and the bore | 12-20-2012 |
20120318526 | Managing Treatment of Subterranean Zones - A downhole heated fluid generation system includes: a compressor-valve assembly having a compressor and a valve, the assembly operable to compress and regulate a fluid used in generating a heated treatment fluid; a combustor fluidly coupled to the compressor-valve assembly, the combustor operable to provide the heated treatment fluid into a wellbore; and a controller communicably coupled to the compressor-valve assembly, the controller operable to: determine an input indicative of a desired position of the valve; determine a value indicative of an actual position of the valve; determine a desired operating condition of the compressor based, at least in part, on the input indicative of the desired position of the valve and the value indicative of an actual position of the valve; and adjust an operating parameter of the compressor based on the desired operating pressure to compress a fluid flowing through the compressor and the valve. | 12-20-2012 |
20120318527 | Valve System For Downhole Tool String - A technique facilitates the delivery and testing of a tool string assembly downhole. The technique employs at least one rotatable element valve in the tool string at a location which enables the rotatable element valve to be used for selectively blocking or allowing fluid flow along an interior passage of the tool string. A one-way valve, such as a flapper valve, dart valve, or spring loaded ball valve, is deployed within a rotatable element of each rotatable element valve to combine flow control functions, thus enabling a shorter tool string section. The at least one rotatable element valve also may be designed to facilitate pressure testing of the tool string. | 12-20-2012 |
20120318528 | GATE VALVE SEAT AND SEAT RING - A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat is mounted to the body at the intersection of the flow passage and the cavity. A gate is installed at the cavity and has an engaging face that slidingly engages the seat while the gate is being moved between open and closed positions. The end faces between a seat pocket and the seat are hard-coated and smooth-finished to provide sealing when mated. The hardcoated pocket and seat sealing surfaces extend the life of the valve by eliminating the need for an elastomeric seal of limited life. | 12-20-2012 |
20120325493 | INJECTION LINE VALVE MECHANISM - A downhole valve assembly, including a line operatively arranged to carry a fluid, a splitter arranged on the line, the splitter dividing the line into a control leg and an injection leg. The injection leg terminating in an injection port, and a valve mechanism actuatable for selectively sealing the injection port, the valve mechanism controllable via a fluid pressure in the line, the fluid pressure communicated to the valve mechanism via the control leg for actuating the valve mechanism. | 12-27-2012 |
20120325494 | DOWNHOLE DEPLOYMENT VALVES - Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV. | 12-27-2012 |
20120325495 | DOWNHOLE DEPLOYMENT VALVES - Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV. | 12-27-2012 |
20130000921 | APPARATUS TO REMOTELY ACTUATE VALVES AND METHOD THEREOF - A production string employable in a multi-zone completion system, the production string includes a passageway enabling passage of production fluids therethrough; a shifting tool including a shifting profile engageable with a production sleeve of the completion system to open a closed production sleeve, the shifting tool sharing the passageway of the production string; and, a remotely controlled hydraulic production valve which controls fluid flow between the passageway and the production sleeve. Also included is a production method useable in a borehole | 01-03-2013 |
20130000922 | WELL TOOL ACTUATOR AND ISOLATION VALVE FOR USE IN DRILLING OPERATIONS - A well tool actuator can include a series of chambers which, when opened in succession, cause the well tool to be alternately actuated. A method of operating a well tool actuator can include manipulating an object in a wellbore; | 01-03-2013 |
20130000923 | Downhole Circulation Apparatus - A downhole circulation apparatus comprises at least one tubular body portion defining a first through-flow passage through which drilling fluid can pass along the drill string. A first sleeve is slidably mounted in the tubular body portion and is biased into a position in which the first port means is closed by a biasing means such as a spring. Second port means is formed through the tubular body portion at a location below the first port means in the drill string. The second port means may comprise a plurality of second nozzles, wherein each of the second nozzles has a diameter greater than the diameter of each of the first nozzles of the first port means. Larger nozzles enable large particle size drilling fluid to be bypassed. A second sleeve is slidably mounted inside the tubular body portion. | 01-03-2013 |
20130008666 | METHOD FOR CONVEYING BALLS DOWNHOLE USING A BALL CARRIER MEDIUM - A method is provided for safely delivering actuators such as balls from a ball injector to a downhole tool in a wellbore. A structure or carrier medium, such as a slug of gel or foam, is introduced to a bore of injector and the ball is injected into the bore for support by the carrier medium. A displacement fluid, such as fracturing fluid, is pumped into the wellbore to drive the carrier medium and ball. Each slug and ball can be retrieved at a ball catcher at the wellhead. | 01-10-2013 |
20130008667 | DOWNHOLE DEPLOYMENT VALVES - Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV. | 01-10-2013 |
20130014956 | WELLBORE CIRCULATION TOOL AND METHODAANM HUGHES; JOHNAACI CalgaryAACO CAAAGP HUGHES; JOHN Calgary CAAANM RASMUSSEN; RYAN DWAINEAACI CalgaryAACO CAAAGP RASMUSSEN; RYAN DWAINE Calgary CAAANM CAMPBELL; DELTON ANDREWAACI CalgaryAACO CAAAGP CAMPBELL; DELTON ANDREW Calgary CA - A circulation valve includes: an outer tubular sleeve telescopically mounted at its end over a tubular mandrel; a fluid passage between sleeve and the mandrel, the fluid passage providing fluid communication between the inner bore of the valve and its outer surface; a dual knife seal assembly to control flow out of the fluid flow path through the fluid passage, the dual knife seal assembly including a first annular knife seal edge and land that seal up when the sleeve and mandrel are in a fully axially compressed position and a second annular knife seal edge and land that seal up when the sleeve and mandrel are pulled into a fully in tension position; and, a J-slot position indexing mechanism including a slot and a key to guide movement of the sleeve and the mandrel between the fully in tension position and the fully compressed position. The circulation valve is employed in a wellbore treatment assembly and methods. | 01-17-2013 |
20130020088 | CHEMICALLY TARGETED CONTROL OF DOWNHOLE FLOW CONTROL DEVICES - Systems and methods using enhanced flow control devices are described. The flow control devices can be selectively closed completely or have its effective flow area reduced to restrict production (or injection) by use of a chemical trigger mechanism. In addition, some of the systems described herein deploy specific targeted chemical tracers, dissolvable in the unwanted production fluid (e.g. water or gas). These chemical tracers once dissolved will enter the production stream and be identified at the surface. The identification will determine which segment of the completion is producing the unwanted fluid. According to some embodiments, an appropriate chemical trigger is placed, for example, by pumping down through the tubing and utilizing intelligent completion valve to place the chemical, or by spotting with coiled tubing and bullhead to the formation, or by other methods of chemical placement. The chemical trigger will only trigger the active chemical in the appropriate flow control device. This chemical will then change state—dissolve, create thermal reaction, create a pressure swell or expand—which in turn allows a mechanical device to shift position such that a valve in the flow control device closes, or reduces its flow by restricting the flow area by swelling/expansion of the active chemical. | 01-24-2013 |
20130020089 | TUBULAR VALVING SYSTEM AND METHOD - A tubular valving system includes, a tubular, a seat, a sleeve movably engaged with the seat between at least a first position, a second position and a third position, a release member between the sleeve and the seat that maintains the sleeve relative to the seat in the first position until release thereof, a biasing member configured to urge the sleeve from the second position toward the third position, and a flapper sealingly engagable with the seat. A first threshold pressure against the seated flapper causes release of the release member allowing the sleeve and the seat to attain the second position. A subsequently drop in pressure against the seated flapper below a second threshold level allows the biasing member to move the sleeve relative to the seat to the third position thereby unseating the flapper from the seat and preventing the flapper from again seating with the seat. | 01-24-2013 |
20130020090 | THREE DIMENSIONAL FLUIDIC JET CONTROL - A method of controlling a fluid jet can include discharging fluid through an outlet of a jetting device, thereby causing the fluid jet to be flowed in multiple non-coplanar directions, and the fluid jet being directed in the non-coplanar directions by a fluidic circuit of the jetting device. A jetting device can include a body having at least one outlet, and a fluidic circuit which directs a fluid jet to flow from the outlet in multiple non-coplanar directions without rotation of the outlet. A method of drilling a wellbore can include flowing fluid through a fluidic switch of a jetting device, thereby causing a fluid jet to be discharged in multiple non-coplanar directions from the jetting device, and the fluid jet cutting into an earth formation. | 01-24-2013 |
20130025876 | SELECTIVE HYDRAULIC FRACTURING TOOL AND METHOD THEREOF - A selective downhole tool including a tubular having a longitudinal bore enabling passage of fluids there through. Having a valve opening in a wall of the tubular. An expandable ball seat selectively movable between a first size sized to trap a ball to block flow through the tubular. A larger second size sized to release the ball through the tubular. A valve cover longitudinally movable within the tubular, the valve cover including a dissolvable insert. Also included is a method of operating a downhole tool. | 01-31-2013 |
20130025877 | Sliding Sleeve Valve with Feature to Block Flow Through the Tool - Sliding sleeve valves that include a housing with an axial flowbore defined along its length and at least one lateral fluid port disposed through the housing. One or more sliding sleeve members are disposed within the flowbore and carry first and second ball seats. Landing a first ball onto the first ball seat will move the valve from a first position wherein lateral flow is blocked to a second position wherein lateral flow is permitted. Landing a second ball onto the second ball seat will move the valve to a third position wherein lateral flow is again blocked and axial flow is permitted. | 01-31-2013 |
20130025878 | SURFACE CONTROLLED REVERSIBLE COILED TUBING VALVE ASSEMBLY - A valve assembly for reversibly governing fluid flow through coiled tubing equipment. Valves of the assembly may be directed by a telemetric line running from an oilfield surface. In this manner, valve adjustment and/or reversibility need not require removal of the assembly from the well in order to attain manual accessibility. Similarly, operation of the valves is not reliant on any particular flow rate or other application limiting means. As such, multiple fluid treatments at a variety of different downhole locations may take place with a reduced number of trips into the well and without compromise to flow rate parameters of the treatments. | 01-31-2013 |
20130032354 | ANNULAR PRESSURE REGULATING DIAPHRAGM AND METHODS OF USING SAME - Downhole tools comprise a housing chamber with an expandable member disposed therein. An interior of the expandable member is in fluid communication with an outside environment so that hydrostatic pressure can act on an inner wall surface of the expandable member. The outer wall surface of the expandable member partially defines a sealed chamber within the housing chamber such that expansion of the expandable member due to an increase in hydrostatic pressure causes the volume within the sealed chamber to decrease, thereby energizing the sealed chamber. Thus, an increase in hydrostatic pressure within an outside environment is compensated. Further, when the hydrostatic pressure within the outside environment decreases, the energized sealed chamber causes contraction of the expandable member, thereby compensating for the decrease in hydrostatic pressure. | 02-07-2013 |
20130032355 | SAFETY VALVE WITH PROVISIONS FOR POWERING AN INSERT SAFETY VALVE - A method of operating a valve can include installing an electrical actuator in a flow passage extending longitudinally through the valve, and operating a closure assembly in response to electrical power being supplied to the electrical actuator. An outer safety valve can include a closure assembly which selectively permits and prevents flow through a longitudinal flow passage, and at least one electrical connector which electrically connects to an insert safety valve positioned in the flow passage. A method of operating an outer safety valve in a subterranean well can include installing an insert safety valve in the safety valve, and operating the insert safety valve with electrical current flowing from the safety valve to the insert safety valve. | 02-07-2013 |
20130032356 | ELECTRICALLY ACTUATED INSERT SAFETY VALVE - A method of operating an insert safety valve in a subterranean well can include installing the insert safety valve in a flow passage which extends longitudinally through an outer safety valve, making electrical contact between the insert safety valve and an electrical connector, and operating the insert safety valve, thereby selectively permitting and preventing flow through the flow passage. An insert safety valve can include a closure assembly which selectively permits and prevents flow through a longitudinal flow passage, and at least one electrical connector which electrically connects to another electrical connector external to the insert safety valve. | 02-07-2013 |
20130037273 | METHOD AND APPARATUS FOR WELLBORE CONTROL - A method and apparatus for wellbore control include a downhole facing ball stop and sealing area that can stop and seal with an actuator ball migrating toward surface with wellbore returns or production. The downhole facing ball stop operates with the returning actuator ball to create a seal against any returns or production migrating toward surface such that well control is provided until the ball is removed from the sealing area or a bypass is opened around the seal. | 02-14-2013 |
20130043038 | Debris barrier for hydraulic disconnect tools - A hydraulic connection mechanism for use in a wellbore comprises an upper connection running tool, a lower connection tool configured to engage the upper connection running tool and form a fluid communication pathway through the hydraulic connection mechanism, and a debris barrier disposed in the fluid communication pathway. The debris barrier comprises a body element, and a spring element configured to maintain the body element in a closed position when the upper connection running tool is disengaged from the lower connection tool. | 02-21-2013 |
20130043039 | TUBING PRESSURE INSENSITIVE PRESSURE COMPENSATED ACTUATOR FOR A DOWNHOLE TOOL AND METHOD - A tubing pressure insensitive, pressure compensated actuator system includes a housing having a bore therein. A force transmitter sealingly moveable within the bore. The force transmitter defining with the bore two fluid chambers. The two fluid chambers being in fluid communication with each other, one at each longitudinal end of the force transmitter. An activator in one or both of the two fluid chambers and operatively connected to the force transmitter. At least two seals sealingly positioned between the housing and the force transmitter. One of the seals disposed near one end of the force transmitter and another of the seals disposed near another end of the force transmitter. A separate compensation piston disposed in the housing so as to expose one end of the compensation piston to tubing pressure and to expose the other end of the compensation piston to a fluid volume including the fluid chambers. Also included is a method for reducing force requirements of an actuator. | 02-21-2013 |
20130043040 | SYSTEM FOR ENABLING SELECTIVE OPENING OF PORTS - A system and method for selectively enabling fluid communication between two volumes, the system including a tubular having a port housing with at least one port, a member disposed with the tubular and movable between a closed position in which the port is closed and an open position in which the port is open, a lock element positively engaged with both the member and the tubular for maintaining the member in the closed position, and an actuator in keyed engagement with the lock element for biasing the lock element, wherein actuation of the actuator releases the lock element to resiliently spring into engagement with solely one of the member or the tubular for enabling the member to move relative to the tubular to the open position for opening the port. | 02-21-2013 |
20130043041 | SELECTIVELY DEGRADABLE PASSAGE RESTRICTION - An actuation system and method, the system including a tubular defining a passage, and an assembly disposed with the tubular, the assembly including a restriction operatively arranged to receive a restrictor for enabling actuation of the assembly, the restriction including a degradable material with a protective layer thereon, the degradable material degrading upon exposure to a fluid in the passage and the protective layer isolating the degradable material from the fluid. | 02-21-2013 |
20130043042 | Multiple Shift Sliding Sleeve - A system of sliding valves wherein the inserts of multiple sliding valves may be shifted to an open position using a single shifting ball. Each individual sliding valve has a movable insert that, depending upon the position of the insert within the sliding valve, may either block or permit fluid to radially flow between the interior and exterior of the sliding valve. The insert has a profile about the interior of the movable insert allowing a shifting tool to connect to and move the insert so that fluid may be prevented from entering the interior portion of the sliding sleeve. | 02-21-2013 |
20130043043 | High Flow Rate Multi Array Stimulation System - A system of sliding valves wherein the inserts of multiple sliding valves may be shifted to an open position using a single shifting ball. Each individual sliding valve has a movable insert that, depending upon the position of the insert within the sliding valve, may either block, permit fluid to radially flow between the interior and exterior of the sliding valve at a first rate, or permit fluid to radially flow between the interior and exterior of the sliding valve at some different second rate. | 02-21-2013 |
20130043044 | Internal Blowout Preventer Apparatus - An internal blowout preventer assembly having a central through-bore and flapper valve. The flapper valve permits fluid flow in a downward direction, but not the opposite (upward) direction. A retrievable tubular lockout sleeve can be conveyed via wireline, coiled tubing or other similar means and installed within the through-bore of the internal blowout preventer assembly. Once installed, the lockout sleeve prevents the flapper valve from closing, thereby permitting wireline or other concentric operations to be performed (as well as upward fluid flow) though the internal blowout preventer. | 02-21-2013 |
20130043045 | FLOW STOP VALVE - A flow slop valve ( | 02-21-2013 |
20130048298 | System and method for servicing a wellbore - A wellbore servicing apparatus, comprising a housing defining an axial flowbore and comprising ports, a first sleeve, a second sleeve movable relative to the housing from (a) a first position in which the second sleeve obstructs fluid communication via the ports of the housing to (b) a second position in which the second sleeve allows fluid communication via the ports of the housing, and wherein the first sleeve is movable relative to the housing from (a) a first position in which the first sleeve does not allow a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position to (b) a second position in which the first sleeve allows a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position, and an expandable seat. | 02-28-2013 |
20130048301 | Downhole Fluid Flow Control System and Method having Dynamic Response to Local Well Conditions - A downhole fluid flow control system having dynamic response to local well conditions. The system includes a tubing string operably positionable in a wellbore. Annular barriers are positioned between the tubing string and the wellbore to isolate first and second zones. A fluid flow control device is positioned within each zone. A flow tube that is operably associated with the fluid flow control device of the first zone is operable to establish communication between the second zone and the fluid flow control device in the first zone such that a differential pressure between the first zone and the second zone is operable to actuate the fluid flow control device of the first zone from a first operating configuration to a second operating configuration. | 02-28-2013 |
20130048302 | SURFACE CONTROLLED SUBSURFACE SAFETY VALVE - A safety valve for subsurface disposal equipped with an interfacing element of elastomeric and non-elastomeric components. The components include an elastomeric energizing component and a non-elastomeric seal ring configured to work together in attaining an internal seal sufficient for allowing the valve to remain consistently closed. Indeed, the aid afforded by the interfacing element may allow the valve to remain consistently and effectively closed even in particularly low pressure well environments or those of widely varying temperatures. | 02-28-2013 |
20130056220 | VALVE FOR HYDRAULIC FRACTURING THROUGH CEMENT OUTSIDE CASING - A valve includes: a housing; a mandrel disposed in the housing; a rupture disk disposed in a passageway of the mandrel; a sliding sleeve disposed between the housing and the mandrel; and a ball seat disposed in the mandrel. A method for actuating a valve includes: flowing a fluid through the valve; dropping a ball; seating the ball in the ball seat and blocking fluid flow through the mandrel; flowing fluid through the passageway to the sliding sleeve; moving the sliding sleeve axially within the valve; and exiting fluid through the openings of the housing and mandrel. A valve includes: a housing having an opening; a mandrel disposed in the housing; a sliding sleeve disposed between the housing and the mandrel; and a ball seat disposed in the mandrel blocking fluid communication between the mandrel and the passageway. | 03-07-2013 |
20130056221 | FLOW CONTROL DEVICE AND FLOW CONTROL METHOD - A method and apparatus is disclosed for controlling the flow of fluid in oil and/or gas production, involving a control device or an autonomous valve ( | 03-07-2013 |
20130062071 | MINIMAL TRAVEL FLOW CONTROL DEVICE - A technique facilitates controlling flow in a wellbore with a simplified valve. The design of the valve also enables reduction in the overall length of the valve to improve spatial considerations. The valve comprises a valve component, e.g. a flapper, movable between a closed position and an open position. A flow tube is designed to selectively open the valve component with reduced travel, thus enabling a shortened flow tube. The short flow tube enables use of valve housings, springs, and other valve components having a reduced length. | 03-14-2013 |
20130068471 | Transition tool and method - A throttling valve formed by introducing an elongate tubular body into a tubular member through which fluid is flowing. The tubular body is provided with first and second ends, the first end being adapted for engaging a flow control device and the second end having a beveled end that enables fluid communication between the tubular member and the tubular body. The tubular body is provided with a tapered stem, the outside diameter of the stem proximate the first end of the tubular body being greater than the outside diameter of the stem proximate the second end, for seating against the opening in the end of the tubular member and effecting a seal between the outside surface of the stem and the margin of the opening in the tubular member. An elastomeric or other seal may be mounted on the outside surface of the stem for this same purpose. | 03-21-2013 |
20130068472 | Hydraulic Three Position Stroker Tool - A stroker tool operates a subterranean tool between three operating positions. The stroker tool includes an outer housing defining a piston chamber within. A piston assembly having first and second piston members is moveable within the piston chamber between a first position, a second position, and a third position. A shifting member is operably connected with the piston assembly and is moved to an uppermost axial position when the piston assembly is in the first position, an intermediate axial position when the piston assembly is in the second position, and a lowermost axial position when the piston assembly is in the third position. | 03-21-2013 |
20130068473 | PRESSURE CONTROLLED WELL CONSTRUCTION AND OPERATION SYSTEMS AND METHODS USABLE FOR HYDROCARBON OPERATIONS, STORAGE AND SOLUTION MINING - Apparatus and methods for fluidly communicating between conduit strings and wells through crossovers forming a subterranean manifold string, usable for pressure contained underground hydrocarbon operations, storage and solution mining. Concentric conduits enable fluid communication with one or more subterranean regions through an innermost passageway usable for communicating fluids and devices engagable with a receptacle of the manifold. A wall of the manifold string and/or a selectively placed fluid control device diverts fluid mixture flow streams from one passageway to another radially disposed inward or outward passageway to selectively control pressurized fluid communication, thereby forming a plurality of pressure bathers. The pressure bathers can be used to selectively communicate fluid mixtures to and from a reservoir for hydrocarbon operations, solution mining, and/or control of a storage cushion space during such operations. | 03-21-2013 |
20130068474 | Downhole System and Apparatus Incorporating Valve Assembly with Resilient Deformable Engaging Element - An apparatus, system and method relating to a valve assembly for use in a subterranean well for oil, gas, or other hydrocarbons. The valve assembly comprises an engaging element with a resilient portion having a first shape when a first pressure differential is applied across the engaging element in a direction and a second shape when a second pressure differential is applied across the element in the direction; a receiving element having sealing section; wherein the engaging element is engagable with the first receiving element to substantially prevent the flow of fluids through the sealing section a pressure differential is applied to the engaging element that is less than a first pressure differential; wherein the engaging element is extrudable through the first receiving element by applying a second pressure differential that is greater than the first pressure differential. | 03-21-2013 |
20130068475 | Multistage Production System Incorporating Valve Assembly With Collapsible or Expandable C-Ring - A valve assembly, and related system and method, with an annular sleeve having an inner surface with a diameter, a first cylindrical outer surface, and a plurality of openings extending between the inner surface and the first cylindrical outer surface. The annular sleeve includes a second cylindrical outer surface having a different diameter than the first cylindrical outer surface. A first C-ring having a body with a seating surface, opposing terminal ends, and an outer diameter extending from the body is at least partially within the inner surface of the sleeve. A coil spring is positioned around a portion of the sleeve and in an annular space at least partially defined by an annular body and the second cylindrical outer surface. | 03-21-2013 |
20130068476 | WELL BARRIER - A well barrier for sealing a downhole conduit is described. The well barrier includes a housing defining a throughbore having a longitudinal axis, a valve actuator and a flapper valve. The flapper valve includes a flapper attached to the valve actuator. The flapper valve and the valve actuator are axially movable with respect to the housing in a direction parallel to the longitudinal axis. The flapper is adapted to move from one of a throughbore open and throughbore closed positions to the other of said open and closed positions when the actuator and flapper valve move a predetermined axial distance. | 03-21-2013 |
20130075106 | ELECTRICAL GENERATOR FOR A CEMENTING MANIFOLD - Apparatuses and methods comprising a cementing head comprising a stationary body comprising a toothed ring; a rotating body disposed below the stationary body, the rotating body comprising an armature disposed inside the toothed ring; a battery disposed on the rotating body; and a wire connected to the armature and the battery. | 03-28-2013 |
20130075107 | METHOD AND APPARATUS FOR AUTONOMOUS DOWNHOLE FLUID SELECTION WITH PATHWAY DEPENDENT RESISTANCE SYSTEM - An apparatus is described for controlling flow of fluid in a subterranean formation based on a selected characteristic of fluid flow, such as viscosity, velocity or density, as that characteristic varies over time. A pathway-dependent resistance assembly, such as a vortex chamber having two inlets and an outlet, provides varying resistance to fluid flow based on the ratio of flow from the inlets, the direction of flow as directed by the inlets, and the characteristic of the fluid. The incoming flow ratio is preferably determined by flowing fluid through a plurality of passageways having differing flow rate responses to fluid having differing characteristics. Fluid of a selected characteristic will encounter lesser resistance to flow across the system, while fluid of an un-favored characteristic will encounter greater resistance to flow. Thus, flow of well fluids can be autonomously restricted as the fluid characteristics change over time. | 03-28-2013 |
20130075108 | BARRIER VALVE SYSTEM AND METHOD OF CLOSING SAME BY WITHDRAWING UPPER COMPLETION - A completion system, including a barrier valve transitionable between an open position and a closed position. An upper completion is operatively coupled with the barrier valve for mechanically transitioning the barrier valve to the closed position when the upper completion is withdrawn. A method of operating a completion system is also included. | 03-28-2013 |
20130075109 | BARRIER VALVE SYSTEM AND METHOD OF CONTROLLING SAME WITH TUBING PRESSURE - A completion system including a barrier valve operatively arranged in a tubing string to selectively impede fluid flow through a lower completion. At least one control line is included for supplying a control line pressure for controlling operation of the barrier valve. The at least one control line is operatively arranged with the tubing string for enabling tubing pressure in the tubing string to determine the control line pressure. A method of operating a barrier valve is also included. | 03-28-2013 |
20130075110 | Debris Barrier for Hydraulic Disconnect Tools - A hydraulic connection mechanism for use in a wellbore comprises an upper connection tool, a lower connection tool configured to engage the upper connection tool and form a fluid communication pathway through the hydraulic connection mechanism, and a debris barrier disposed in the fluid communication pathway. The debris barrier comprises a body element, and a spring element configured to maintain the body element in a closed position when the upper connection tool is disengaged from the lower connection tool. | 03-28-2013 |
20130081823 | VALVE - A valve has a moveable member movable between open and closed configurations and a cutting device arranged to shear against an anvil member when moving between the open and closed configurations and a sealing member providing a seat for seating of the moveable member when the moveable member is in the closed configuration. The anvil member and the sealing member are moveable relative to one another when the moveable member is moving from the open to the closed configuration. During opening and closing the sealing member is displaced away from the cutting device as the cutting device engages the anvil member. The sealing member is pushed away from the moveable member and the anvil to a maximum separation from the movable member at the point on the stroke when the cutting surface of the moveable member is moving past the anvil member. | 04-04-2013 |
20130087344 | DOWNHOLE VALVE ASSEMBLY - A downhole valve assembly operable to control production fluid flow around an obstruction in a production tubing string. The obstruction may be caused by another valve or valve assembly located in the production tubing string, where the valve is closed and blocks flow through the production tubing. The downhole valve assembly comprises a tubular body that includes an axial passage extending through the body and one or more ports extending substantially radially through the body. The downhole valve assembly also includes one or more actuating members operable to move relative to the body. Movement of the actuating members selectively opens the ports such that a fluid flow path through the ports is defined between an annulus region outside of the valve assembly and the axial passage such that the blockage can be bypassed. | 04-11-2013 |
20130092392 | METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW USING MOVABLE FLOW DIVERTER ASSEMBLY - Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve. | 04-18-2013 |
20130092393 | METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW USING MOVABLE FLOW DIVERTER ASSEMBLY - Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve. | 04-18-2013 |
20130092394 | Well Screen with Extending Filter - A well screen assembly for a wellbore includes a base pipe and a filter assembly carried on the base pipe. The filter assembly has an internal passage in fluid communication with an opening through the base pipe. A swell material is carried in the base pipe between the filter assembly and the base pipe. The swell material is adapted to expand under specified conditions and displace the filter assembly radially toward a wall of the wellbore. A flow control device is provided in fluid communication between the internal passage of the filter assembly and the opening in the base pipe and is adapted to restrict communication of fluid with the opening in the base pipe. The well screen assembly can include a hydraulic, electric or optical communication line running axially through a length of the well screen assembly. | 04-18-2013 |
20130092395 | Venting System and Method to Reduce Adiabatic Heating of Pressure Control Equipment - A system and method for control of adiabatic heating within a pressure control device that is associated with a well valve. | 04-18-2013 |
20130098630 | DOWNHOLE FLOW CONTROL DEVICE AND METHOD - A flow control device, including a first member defining a first portion of a flow path and a second member defining a second portion of the flow path. The flow path has a cross sectional flow area defined at least partially by the first member and the second member. A length of the flow path is greater than a largest dimension of the cross sectional flow area, and the cross sectional flow area is adjustable by movement of at least a portion of the first member relative to the second member. A crush zone arranged with at least one of the first member and the second member that can change in length due to loading thereof A method of adjusting restriction of a flow path is also included. | 04-25-2013 |
20130098631 | PROTECTION OF A SAFETY VALVE IN A SUBTERRANEAN WELL - A safety valve system for use in a subterranean well can include a safety valve protector connected downstream of a safety valve, whereby when closed the safety valve protector reduces a flow rate through the safety valve and prevents displacement of an object through the safety valve protector to the safety valve. Another safety valve system can include a safety valve protector which, when closed, reduces a flow rate through a safety valve, and the safety valve protector closes in response to the flow rate through the safety valve being above a predetermined level. In another safety valve system, each of the safety valve protector and the safety valve comprises an actuator, the actuators being connected by a line, and a signal transmitted by the line causes the safety valve protector actuator to close the safety valve protector, and then causes the safety valve actuator to close the safety valve. | 04-25-2013 |
20130098632 | GRADATIONAL INSERTION OF AN ARTIFICIAL LIFT SYSTEM INTO A LIVE WELLBORE - A method of inserting a downhole assembly into a live wellbore, includes: assembling a pressure control assembly (PCA) onto a production tree of the live wellbore; inserting a first deployment section of the downhole assembly into a lubricator; landing the lubricator onto the PCA; connecting the lubricator to the PCA; lowering the first deployment section into the PCA; engaging a clamp of the PCA with the first deployment section; after engaging the clamp, isolating an upper portion of the PCA from a lower portion of the PCA; and after isolating the PCA, removing the lubricator from the PCA. | 04-25-2013 |
20130105175 | FRANGIBLE PRESSURE CONTROL PLUG, ACTUATABLE TOOL INCLUDING THE PLUG, AND METHOD THEREOF | 05-02-2013 |
20130105176 | METHOD OF CONTROLLING PRESSURE IN A WELL | 05-02-2013 |
20130112422 | DIFFERENTIAL PRESSURE ACTUATOR - A technique facilitates actuation of a variety of tools in many types of environments. The actuation technique employs a closed conduit, such as a closed tube, arranged in a curvilinear structure. By applying a differential pressure to the closed conduit, the curvature of the curvilinear structure is changed. This change can be used to actuate a corresponding tool between desired operational positions. | 05-09-2013 |
20130112423 | VARIABLE FLOW RESISTANCE FOR USE WITH A SUBTERRANEAN WELL - A variable flow resistance system for use with a subterranean well can include a structure which displaces in response to a flow of a fluid composition, whereby a resistance to the flow of the fluid composition changes in response to a change in a ratio of desired to undesired fluid in the fluid composition. Another system can include a structure which rotates in response to flow of a fluid composition, and a fluid switch which deflects the fluid composition relative to at least two flow paths. A method of variably resisting flow in a subterranean well can include a structure displacing in response to a flow of a fluid composition, and a resistance to the flow of the fluid composition changing in response to a ratio of desired to undesired fluid in the fluid composition changing. Swellable materials and airfoils may be used in variable flow resistance systems. | 05-09-2013 |
20130112424 | FLUID DISCRIMINATION FOR USE WITH A SUBTERRANEAN WELL - A fluid discrimination system can include a fluid discriminator which selects through which of multiple outlet flow paths a fluid composition flows, the selection being based on a direction of flow of the fluid composition through the discriminator, and the direction being dependent on a fluid type in the fluid composition. Another fluid discriminator can include a structure which displaces in response to a fluid composition flow, whereby an outlet flow path of the fluid composition changes in response to a change in a ratio of fluids in the fluid composition. A method of discriminating between fluids can include providing a fluid discriminator which selects through which of multiple outlet flow paths a fluid composition flows in the well, the selection being based on a direction of flow of the fluid composition through the discriminator, and the direction being dependent on a ratio of the fluids in the fluid composition. | 05-09-2013 |
20130112425 | FLUID DISCRIMINATION FOR USE WITH A SUBTERRANEAN WELL - A fluid discrimination system can include a fluid discriminator which selects through which of multiple outlet flow paths a fluid composition flows, the selection being based on a direction of flow of the fluid composition through the discriminator, and the direction being dependent on a fluid type in the fluid composition. Another fluid discriminator can include a structure which displaces in response to a fluid composition flow, whereby an outlet flow path of the fluid composition changes in response to a change in a ratio of fluids in the fluid composition. A method of discriminating between fluids can include providing a fluid discriminator which selects through which of multiple outlet flow paths a fluid composition flows in the well, the selection being based on a direction of flow of the fluid composition through the discriminator, and the direction being dependent on a ratio of the fluids in the fluid composition. | 05-09-2013 |
20130112426 | RESETTABLE PRESSURE CYCLE-OPERATED PRODUCTION VALVE AND METHOD - A method of actuating multiple valves in a well can include applying one or more pressure cycles to the valves without causing actuation of any of the valves, and then reducing pressure applied to the valves, thereby resetting a pressure cycle-responsive actuator of each valve. A pressure cycle-operated valve for use in a well can include a closure member, a piston which displaces in response to pressure applied to the valve, and a ratchet mechanism which controls relative displacement between the piston and the closure member. The ratchet mechanism may permit relative displacement while one or more pressure cycles are applied to the valve, and the ratchet mechanism may prevent relative displacement in response to a pressure sequence of: a) a reduction in pressure applied to the valve, b) a predetermined number of pressure cycles applied to the valve, and c) an increase in pressure applied to the valve. | 05-09-2013 |
20130112427 | Split Ring Shift Control for Hydraulic Pulse Valve - A hydraulic pulse valve for use in downhole tools includes a split ring seal to limit the fluid flow available to shift a poppet in the valve from an open position to a closed position. The split ring seal provides relatively long and repeatable pressure pulses, which improve the effectiveness of the hydraulic pulse valve for borehole applications. | 05-09-2013 |
20130112428 | CIRCULATION SUB AND METHOD FOR USING SAME - Techniques for continuously circulating fluid into a drill string are provided. These techniques involve a circulation sub ( | 05-09-2013 |
20130118757 | CONTROL LINE PROTECTION - A control line protector for use with a tubing string, e.g. production tubing having at least one control line on an outer surface thereof is disclosed. The control line protector comprises a sleeve having a cylindrical rigid outer wall, the sleeve being locatable around the tubing string and the at least one control line, and a polymeric scaling element disposed, in use, between an inner surface of the outer wall of the sleeve and the tubing string, operable to substantially seal the space between the outer wall of the sleeve and the tubing string. | 05-16-2013 |
20130118758 | HYDROSTATIC PRESSURE INDEPENDENT ACTUATORS AND METHODS - An actuator that may be used in a wellbore to change the state of a downhole tool. The actuator has an operator that is axially movable in response to changes in tubing pressure. The actuator includes a hydraulic circuit that creates a temporary reference pressure against which the tubing pressure indexes the operator. | 05-16-2013 |
20130126184 | REACTIVE CHOKE FOR AUTOMATIC WELLBORE FLUID MANAGEMENT AND METHODS OF USING SAME - Fluid actuated chokes comprise an expandable material that expands due to an undesired fluid coming in contact with the choke. The choke includes one or more passageways through which desired fluids from a well flow unimpeded. The choke is disposed in a downhole tool as part of a downhole completion. When one or more undesired fluids enters a production stream flowing through the downhole completion and, thus, the downhole tool, and contacts the choke, the expandable material expands causing fluid flow through the passageway(s) to be restricted and, in some cases, completely closed off. Thus, the choke automatically detects and reacts, i.e., restricts fluid flow through the choke, when contacted by the undesired fluid(s). | 05-23-2013 |
20130126185 | SYSTEM FOR INCREASING SWELLING EFFICIENCY - A swellable system reactive to a flow of fluid including an article having a swellable material operatively arranged to swell upon exposure to a flow of fluid containing ions therein. A filter material is disposed with the swellable material and operatively arranged to remove the ions from the flow of fluid before exposure to the swellable material. | 05-23-2013 |
20130140038 | Bidirectional Downhole Fluid Flow Control System and Method - A bidirectional downhole fluid flow control system is operable to control the inflow of formation fluids and the outflow of injection fluids. The system includes at least one injection flow control component and at least one production flow control component in parallel with the at least one injection flow control component. The at least one injection flow control component and the at least one production flow control component each have direction dependent flow resistance, such that injection fluid flow experiences a greater flow resistance through the at least one production flow control component than through the at least one injection flow control component and such that production fluid flow experiences a greater flow resistance through the at least one injection flow control component than through the at least one production flow control component. | 06-06-2013 |
20130175047 | VARIABLY CONFIGURABLE WELLBORE JUNCTION ASSEMBLY - A method of installing a wellbore junction assembly in a well can include connecting at least two tubular strings to one opposite end of a tubular string connector with similarly dimensioned oriented connections, whereby the tubular strings are interchangeably connectable to the connector by the oriented connections. A wellbore junction assembly can include at least two tubular strings and a tubular string connector having opposite ends. Each of the tubular strings may be secured to one opposite end of the connector by oriented connections, whereby each of the tubular strings has a fixed rotational orientation relative to the connector. A well system can include a tubular string connector, each of first and second tubular strings being secured to the connector, and a support which reduces bending of the second tubular string which results from deflection of the second tubular string from one wellbore section into another wellbore section. | 07-11-2013 |
20130180727 | METHOD AND APPARATUS FOR AUTONOMOUS DOWNHOLE FLUID SELECTION WITH PATHWAY DEPENDENT RESISTANCE SYSTEM - Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve. | 07-18-2013 |
20130186639 | PRESSURE PULSE-INITIATED FLOW RESTRICTOR BYPASS SYSTEM - A method of variably restricting flow in a subterranean well can include resisting the flow through a sidewall of a tubular string, and then selectively opening a device in response to a predetermined pressure signal being transmitted. The opening of the device can substantially reduce a resistance to the flow through the tubular string sidewall. A flow restrictor system for use with a subterranean well can include a flow restrictor which resists flow through system, a pressure sensor, and an initially closed device which opens and thereby permits the flow to bypass the flow restrictor, in response to a predetermined pressure signal being detected by the sensor. | 07-25-2013 |
20130192846 | Resettable Ball Seat - A device to allow a single ball size to actuate at least two downhole tools. Typically when a large number of ball actuated devices are run in a single well the total number of devices is limited by the increasing size of the balls required to actuate each sequential device. By having a mechanism that allows at least two tools to be actuated by each ball size the total number of ball actuated devices may be at least doubled. | 08-01-2013 |
20130192847 | SEAL ASSEMBLIES IN SUBSEA ROTATING CONTROL DEVICES - Rotating control device related oilfield pressure control is accomplished by upper and lower seal members configured to seal around a tubular, a chamber defined between the upper and lower seal members; and wherein fluid enters and/or exits the chamber via some device or structure. Such a device or structure could be a relief valve, a first accumulator, a pressure control valve, an orifice, and/or a void space in a seal member in a location which contacts the tubular. | 08-01-2013 |
20130192848 | COMPLETIONS ASSEMBLY WITH EXTENDABLE SHIFTING TOOL - A completions assembly that includes an extendable and retractable shifting tool at a lower end of an upper completion. Outfitted with this type of tool, the upper completion may be sealably landed out at an installed lower completion without prematurely opening an isolation valve that ensures well control thereat. Rather, the full completions assembly may be finished out and the valve later opened by extending of the shifting tool from the upper completion toward the isolation valve at the lower completion. Once more, this type of well control is achieved through use of hydraulic lines that are dedicated to the upper completion even though the isolation valve is located therebelow. As a result, the extended use of hydraulic couplings and other complex or wear-prone well control architecture may be largely avoided. | 08-01-2013 |
20130199795 | Exercising a Well Tool - An exercise tool assembly for operating a downhole tool auxiliary to a primary actuator system of the downhole tool includes a cylinder mandrel configured to be received in the central bore of the downhole tool. A piston mandrel is in and sealed with the cylinder mandrel. The exercise tool assembly is configured to couple to an actuator sleeve of the downhole tool and to couple to the downhole tool at a location apart from the actuator sleeve. The piston mandrel is responsive to a change in pressure in the central bore to translate relative to the cylinder mandrel and translate the coupling with the actuator sleeve relative to the coupling at the location apart from the actuator sleeve. | 08-08-2013 |
20130199796 | FLUID INJECTION DEVICE - A fluid injection device ( | 08-08-2013 |
20130206424 | Valve device for a side pocket or sub in a well - A valve device for use in a side pocket and/or sub in a well, having a housing ( | 08-15-2013 |
20130213665 | Apparatus Including Water-Soluble Material for Use Downhole - In one aspect, a device for use downhole is provided that in one embodiment includes a member having a composite material reinforced with a water-soluble material. In another aspect a method of performing an operation in a wellbore is disclosed that in one embodiment includes placing a device at a selected location in the wellbore, which device includes a member having a composite material reinforced with a water-soluble material, performing the operation and allowing the water-soluble material to dissolve at least partially in the wellbore. | 08-22-2013 |
20130213666 | OPERATION OF MULTIPLE INTERCONNECTED HYDRAULIC ACTUATORS IN A SUBTERRANEAN WELL - A system for use with a well can include multiple hydraulic actuators in the well, each of the actuators being connected to a common hydraulic line, and multiple pressure control devices, each pressure control device preventing flow from the hydraulic line to a respective one of the actuators unless a pressure differential across the pressure control device exceeds a predetermined level. A method of controlling operation of multiple hydraulic actuators in a well can include applying pressure to at least one of the actuators, thereby increasing pressure in a common hydraulic line connected to each of the actuators, preventing communication of the increased pressure in the common hydraulic line to additional actuators, and permitting flow from the common hydraulic line to each of the actuators, in response to a pressure differential across the pressure control devices exceeding a predetermined level. | 08-22-2013 |
20130213667 | Well Flow Control with Multi-Stage Restriction - A well screen assembly includes a tubular base pipe. The base pipe has a sidewall aperture that communicates fluid between an interior central bore of the base pipe and an exterior of the base pipe. A filtration screen is around the base pipe. The filtration screen defines a lateral fluid passage along a axial length of the well screen assembly. A flow control device is coupled to the base pipe and the filtration screen. The flow control devices includes a ring sealing the lateral fluid passage from the central bore. An elongate restrictor passage is in the ring, oriented longitudinally. The elongate restrictor passage is configured to communicate fluid between the lateral fluid passage and the central bore. The restrictor passage includes an internal, square edged orifice defined by a fixed, annular protrusion. The annular protrusion extends inwardly from an interior surface of the restrictor passage. | 08-22-2013 |
20130220632 | Adjustable Flow Control Device - A flow control device comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restriction disposed in a fluid pathway, a flow blockage disposed in the fluid pathway, and a retaining member configured to maintain the flow blockage within the fluid pathway and allow access to the flow blockage within the fluid pathway. The flow blockage substantially prevents a fluid flow through the fluid pathway. | 08-29-2013 |
20130220633 | Downhole Fluid Flow Control System and Method Having a Fluidic Module with a Flow Control Turbine - A downhole fluid flow control system includes a fluidic module having a turbine chamber. A flow control turbine is rotatably disposed within the turbine chamber. The flow control turbine is operable to provide fluid discriminating flow resistance such that a pressure drop for a desired production fluid passing through the fluidic module is less than a pressure drop for an undesired production fluid passing through the fluidic module. For example, the flow control turbine is operable generate a greater pressure drop in water produced therethrough as compared to oil produced therethrough due to differences in the density, viscosity or other property of the produced fluid. | 08-29-2013 |
20130220634 | FLOW STOP VALVE - A flow stop valve ( | 08-29-2013 |
20130228341 | Downhole Fluid Flow Control System Having Pressure Sensitive Autonomous Operation - A downhole fluid flow control system is operable to be positioned in a wellbore in a fluid flow path between a formation and an internal passageway of a tubular. The system includes a flow control component positioned in the fluid flow path that is operable to control fluid flow therethrough. The system also includes a pressure sensitive valve positioned in the fluid flow path in parallel with the flow control component. The valve autonomously shifts from a first position to a second position responsive to a change in a pressure signal received by the valve, thereby enabling fluid flow therethrough. | 09-05-2013 |
20130228342 | Apparatus and Methods for Restricting Flow in a Bore - Apparatus ( | 09-05-2013 |
20130233563 | WELL ISOLATION CONTROL SYSTEM AND METHOD - An isolation and control system including a valve; a stroker operative to shift the valve between open and closed positions; and at least one control line operative to pressurize the stroker responsive to tubing pressure. Also included is a method for isolation and control in a borehole including running a plug having a pathway defined therein that leads to tubing pressure at one end and to the at least one control line at the other end to a system including a valve. | 09-12-2013 |
20130233564 | SEGMENTED SEAT FOR WELLBORE SERVICING SYSTEM - Disclosed herein is a segmented seat for use in wellbore servicing systems, comprising an annular-shaped seat with an upward facing surface for receiving an obturator, the seat defining a central passageway. The seat comprises one or more slots or passageways and, wherein at least one slot or passageway extends continuously between seat segments. The at least one slot or passageway contains a nonmetallic material suitable for retaining the segments together yet frangible or flexible enough to allow the segments to separate when forced to do so. The segments have gripping surfaces which prevent or inhibit rotation of the seat during removal. | 09-12-2013 |
20130233565 | ACTUATION LOCKOUT SYSTEM - An actuation system, including a first member having a first profile engagable with a tool operatively arranged for actuating the member from an initial configuration to an actuated configuration. A second member is included that is movable relative to the first member. The second member has a lockout feature configured to prevent engagement of the first member with the tool while the second member is located proximate to the first member. A method of selectively actuating a system is also included. | 09-12-2013 |
20130248201 | METHOD AND APPARATUS FOR ACTUATING A DOWNHOLE TOOL - Apparatuses and methods used for actuating downhole tools in which a ball is dropped from a surface of a wellbore until it contacts a ball seat of a downhole tool. The ball seat moves axially downward within the downhole tool and an expandable ball seating surface of the ball seat radially expands to pass the ball. The ball seat then moves axially upward within the downhole tool. | 09-26-2013 |
20130248202 | Control Mechanism for Subsurface Safety Valve - A control mechanism for use with a safety valve adapted to seal a wellbore is described. The control mechanism comprises at least one valve actuator for engaging with the safety valve, the at least one actuator being moveable, in use, between a valve open position in which the safety valve is open and a valve closed position, in which the safety valve is closed. The control mechanism further comprises biasing apparatus adapted to bias the at least one valve actuator to the valve closed position, wherein, in use, the at least one valve actuator extends from the safety valve up to a wellbore wellhead. In one described embodiment, the safety valve is moved between the open and closed positions by movement of the at least one valve actuator with respect to the wellbore. | 09-26-2013 |
20130248203 | CONTROL SYSTEM FOR A SURFACE CONTROLLED SUBSURFACE SAFETY VALVE - Surface controlled subsurface control valves for use in wells and methods of controlling the same. In one embodiment, a valve includes a valve body, a bore closure assembly, a mechanical linkage, a drive assembly, and a control assembly. The valve body defines a bore for fluid to flow through when the bore closure assembly is in an open position. When the bore closure assembly is in its closed position, the bore closure assembly prevents fluid from flowing through the bore. The mechanical linkage is operatively connected to the bore closure assembly and to the drive assembly. The primary control assembly determines a force to apply to the mechanical linkage based on a present operating condition of the valve and causes the drive assembly to apply the determined force to the mechanical linkage. As a result, the mechanical linkage drives the bore closure assembly. | 09-26-2013 |
20130255960 | METHOD AND APPARATUS FOR AUTONOMOUS DOWNHOLE FLUID SELECTION WITH PATHWAY DEPENDENT RESISTANCE SYSTEM - An apparatus is described for controlling fluid flow in a downhole tubular. Fluid is flowed through a flow control system having a flow ratio control system and a pathway dependent resistance system. The flow ratio control system has a first and second passageway, where the ratio of fluid flowing through the passageways dependent on a characteristic of the fluid flow. The pathway dependent resistance system includes a vortex chamber with a first inlet directing flow primarily tangentially into the vortex chamber and the second inlet directing flow primarily radially into the vortex chamber. Undesired fluids, such as gas or water, in an oil well, are directed, based on their relative fluid flow characteristics, into the vortex primarily tangentially, thereby restricting flow when the undesired fluid is present. | 10-03-2013 |
20130255961 | METHOD AND SYSTEM FOR RUNNING BARRIER VALVE ON PRODUCTION STRING - A completion system, including a lower completion initially fluidly open. A production string is included having a removable plug configured to impede fluid flow through the production string. The removable plug is run in with the production string. An intermediate completion assembly is included that couples the lower completion to the production string. The intermediate completion assembly has a packer device and a barrier valve. The packer device is operatively arranged to be set by pressurizing fluid in the production string against the removable plug. The barrier valve is operatively arranged for selectively impeding fluid flow between the production string and the lower completion after the removable plug is removed. A method of completing a borehole is also included. | 10-03-2013 |
20130255962 | Downhole Circulating Valve Having a Metal-To-Metal Seal and Method for Operating Same - A downhole circulating valve includes a generally tubular outer housing having an axially extending internal passageway including an internal seat and at least one generally radially extending opening formed through the housing intersecting the internal seat. A valve element is rotatably disposed within the internal passageway. The valve element has an axially extending internal bore and a head portion disposed at least partially within the internal seat. The head portion includes at least one generally radially extending seal element. The valve element has a first position relative to the housing, wherein the seal element is not aligned with the opening, thereby allowing fluid communication between the opening and the internal passageway. The valve element has a second position relative to the housing, wherein the seal element is aligned with the opening and wherein the seal element forms a metal-to-metal seal with the internal seat, thereby preventing fluid communication between the opening and the internal passageway. | 10-03-2013 |
20130255963 | SELF-LOCATING DOWNHOLE DEVICES - A technique that is usable with a well includes deploying a plurality of location markers in a passageway of the well and deploying an untethered object in the passageway such that the object travels downhole via the passageway. The technique includes using the untethered object to sense proximity of at least some of the location markers as the object travels downhole, and based on the sensing, selectively expand its size to cause the object to become lodged in the passageway near a predetermined location. | 10-03-2013 |
20130264068 | REVERSE CEMENTING VALVE - A method and apparatus for conducting a reverse flow operation. The apparatus may be lowered into a wellbore on a work string, and includes an opening device, a closing device, and a locking device disposed in a housing. Pressurized fluid supplied through the work string may actuate the opening device to open fluid flow through ports in the housing. Pressurized fluid from the annulus may be supplied through the port in the reverse flow direction to actuate the locking device to enable fluid flow up through the work string back to the surface, and to release the closing device. Pressurized fluid supplied through the work string may actuate the closing device to close fluid flow through the ports in the housing. | 10-10-2013 |
20130264069 | PUMP-THROUGH FLUID LOSS CONTROL DEVICE - Presented are apparatus and methods for pump-through fluid loss control. In one embodiment, the fluid loss control device is positioned in a wellbore having a first and a second one-way valve therein. The first one-way valve is openable in response to a first, selected differential pressure acting upward across the first one-way valve. For example, fluid pumped from an ESP from below the device acts to open the first one-way valve. Fluid is flowed upward through the device through the first one-way valve while the second one-way valve is closed. The first one-way valve is closed by reducing the first differential pressure across the first one-way valve, for example, by turning off the ESP. The second one-way valve is opened in response to a second, selected differential pressure acting downward across the valve. Fluid is flowed downward through the second one-way valve while the first one-way valve is closed. | 10-10-2013 |
20130269950 | METHOD OF SIMULTANEOUSLY STIMULATING MULTIPLE ZONES OF A FORMATION USING FLOW RATE RESTRICTORS - A method of simultaneously stimulating at least a first zone and a second zone of a subterranean formation comprises: flowing a fluid through at least a first flow rate restrictor and a second flow rate restrictor, wherein: (A) the first flow rate restrictor is located adjacent to the first zone, (B) the second flow rate restrictor is located adjacent to the second zone, (C) the first and second flow rate restrictors are connected in parallel, and (D) as at least one of the properties of the fluid changes, the flow rates of the fluid exiting the first and second flow rate restrictors are similar within a flow rate range; and allowing the fluid to stimulate at least the first zone and the second zone. | 10-17-2013 |
20130269951 | Apparatus and Method to Remotely Control Fluid Flow in Tubular Strings and Wellbore Annulus - A method and apparatus is disclosed for remotely and selectively controlling fluid flow through tubular string disposed within a wellbore and further control fluid flow between the tubular string inner flow passage and the annular flow passage. The present invention further discloses a method of selectively and remotely receiving and interpreting a form of command or information at a desired apparatus within the wellbore caused by the operator on earth surface. | 10-17-2013 |
20130277066 | ALTERNATING FLOW RESISTANCE INCREASES AND DECREASES FOR PROPAGATING PRESSURE PULSES IN A SUBTERRANEAN WELL - A method of propagating pressure pulses in a well can include flowing a fluid composition through a variable flow resistance system which includes a vortex chamber having at least one inlet and an outlet, a vortex being created when the fluid composition spirals about the outlet, and a resistance to flow of the fluid composition alternately increasing and decreasing. The vortex can be alternately created and dissipated in response to flowing the fluid composition through the system. A well system can include a variable flow resistance system which propagates pressure pulses into a formation in response to flow of a fluid composition from the formation. | 10-24-2013 |
20130284451 | Delayed Activation Activatable Stimulation Assembly - A wellbore servicing apparatus comprising a housing defining an axial flowbore and comprising one or more ports providing a route of fluid communication between the axial flowbore and an exterior of the housing, a sliding sleeve disposed within the housing and comprising a seat and an orifice, the sliding sleeve being movable from a first position in which the ports are obstructed by the sliding sleeve to a second position in which the ports are unobstructed by the sliding sleeve, and the seat being configured to engage and retain an obturating member, and a fluid delay system comprising a fluid chamber containing a fluid, wherein the fluid delay system is operable to allow the sliding sleeve to transition from the first position to the second position at a delayed rate. | 10-31-2013 |
20130284452 | Wellbore Flow Control Devices Comprising Coupled Flow Regulating Assemblies and Methods for Use Thereof - Wellbore flow control devices can be used in various subterranean operations to regulate access of formation fluids to the interior of a wellbore pipe and/or to limit the access of unwanted fluids thereto. Coupling of flow regulating assemblies to one another in the wellbore flow control devices can result in improved operational performance in regulating formation fluid flow to the interior of the wellbore pipe compared to using the flow regulating assemblies in an uncoupled state. Wellbore flow control devices can comprise a gate valve assembly that is in fluid flow communication with a flow restricting assembly, where each assembly is located on the exterior of a wellbore pipe and the flow restricting assembly is in fluid flow communication with the interior of the wellbore pipe. | 10-31-2013 |
20130284453 | Downhole Circulating Valve Having a Seal Plug and Method for Operating Same - A downhole circulating valve includes a generally tubular outer housing having a generally axially extending internal passageway. At least one generally longitudinally extending circulating passageway is formed through at least a portion of the housing. At least one exterior port and at least one interior port are in fluid communication with the circulating passageway. At least one seal plug is disposed within the circulating passageway. The seal plug has a first position relative to the housing wherein the seal plug is remote from the exterior port and the interior port, thereby allowing fluid flow between the exterior port and the interior port through the circulating passageway. The seal plug has a second position relative to the housing wherein the seal plug is between the exterior port and the interior port and wherein the seal plug forms at least one metal-to-metal seal with the circulating passageway, thereby preventing fluid flow between the exterior port and the interior port. | 10-31-2013 |
20130292133 | VALVE ASSEMBLY - A valve assembly ( | 11-07-2013 |
20130299183 | Failsafe Hydrostatic Vent - An automatic vent valve and method for use is provided equalizing the pressure in at least two lines. A housing has a first piston that compresses a bias device when the second pressure source supplies sufficient pressure. Upon a sufficient reduction in pressure the first piston releases a second internally held coaxial piston to allow fluid to flow from a first pressure source towards a second pressure source, thereby equalizing the pressure between the two pressure sources. | 11-14-2013 |
20130299184 | Multi-Cycle Ball Activated Circulation Tool with Flow Blocking Capability - A valve and method of use wherein the valve includes a housing having an axial flowbore defined along its length. A lateral fluid flow port is disposed through the housing. A piston sleeve is disposed within the flowbore and is selectively moveable to block flow through the lateral flow port. The valve can be moved between operating positions wherein flow through the lateral flow port is blocked or allowed and axial flow through the flowbore is blocked or permitted. | 11-14-2013 |
20130306327 | Retrievable Bridge Plug - A bridge plug can be deployed downhole and retrieved using a retrieval tool disposed on jointed or coiled tubing or on another bridge plug. Internally, the bridge plug has a sleeve that is movable on a stem of the plug's tailpiece. When in a first position, the sleeve prevents fluid communication through ports in the stem so that circulated fluid from the retrieval tool can be used to clear debris from the plug during retrieval. When the retrieval tool engages the sleeve in the plug, pulling up on the tool moves the sleeve to an intermediate position in which fluid pressure is equalized across the plug. Further pulling up on the tool locks the sleeve in a further position on the stem so that circulated fluid from the retrieval tool will pass directly to the stem's ports. Movement of the sleeve by the retrieval tool also releases the engaged slips and packing element on the bridge plug's mandrel. | 11-21-2013 |
20130327536 | ROTATIONAL SHEAR VALVE - A rotating gate valve can be used to shear cables or tubing as it closes to obstruct flow. In embodiments, a valve body can have a flow passage and a lateral bore that is transverse to the flow passage. The gate can have a generally cylindrical shape and can rotate about the axis of the gate as it moves laterally to close a flow passage. The lateral and rotational movement can shear articles such as, for example, cables and tubing that extend through the flow passage. | 12-12-2013 |
20130327537 | FLOW CONTROL SYSTEM WITH VARIABLE STAGED ADJUSTABLE TRIGGERING DEVICE - Techniques and equipment to facilitate controlling flow of a fluid along a flow passage. A flow control assembly is placed along a flow passage, and a bypass is routed past the flow control assembly. Flow along the bypass is controlled by a flow bypass mechanism which may be operated via pressure increase within the flow control assembly. A shear device restricts the opening of the bypass, and a dampening device acts to limit the shear device to exposure of forces from the pressure increase. | 12-12-2013 |
20130327538 | UNDERBALANCE ACTUATORS AND METHODS - An actuation method according to one or more embodiments includes axially translating an operator in a first direction in response to applying a tubing pressure to a first side in excess of an annulus pressure acting on a second side, axially translating the operator in a second direction to an actuation position in response to applying an underbalance pressure level to the operator and operating a tool element from a first position to a second position in response to translating the operator to the actuation position. | 12-12-2013 |
20130327539 | DOWNHOLE VALVE - A tool that is usable with a well includes a valve element, a mechanical operator, a pressure chamber and a regulator. The valve element has a first state and a second state. The mechanical operator responds to a predetermined signature in an annulus pressure relative to a baseline level of the annulus pressure to transition the valve element from the first state to the second state. The pressure chamber exerts a chamber pressure to bias the mechanical operator to transition from the second state to the first state. The baseline level is capable of varying over time, and the regulator regulates the chamber pressure based on the baseline level. | 12-12-2013 |
20130333897 | DIVERTER COVER ASSEMBLY AND METHODS OF USE - A diverter cover assembly includes a first arrangement of sliding plates positioned above a central bore of a diverter and movable in substantially opposite directions to open and close over the central bore. | 12-19-2013 |
20130333898 | ELASTICALLY RESPONSIVE UNIBODY SHEAR VALVE - A shear valve utilizing an elastically responsive unibody seal member in operation. The unibody seal member is of unitary constriction and in terms of adjacent ends thereof and an energizing member disposed therebetween. Thus, governing of fluid flow through the metal valve may be achieved without undue concern over high pressure differentials, for example in a downhole environment. Further, the unitary construction of the seal member alleviates concern over mismatching tolerances and/or dimensions for separately assembled miniaturized components of the valve. | 12-19-2013 |
20130341034 | FLAPPER RETENTION DEVICES AND METHODS - A flow control device comprising a flapper retention device electrically activated to a hold position to retain the flapper in an open position in response to the operator being in a first position and the retention device electrically deactivated to a released position permitting movement of the flapper in response to the operator being in a second position. When the operator is in the first position, an end of the operator is located in the closure path of the flapper and in the second position the end of the operator is located out of the closure path. | 12-26-2013 |
20130341035 | Method and Apparatus for Remotely Changing Flow Profile in Conduit and Drilling Bit - The present invention relates to apparatus and methods for remotely adjusting the drill bit hydraulic horse power per square inch (HSI). Varying the nozzle geometry remotely without the need to pull the drill string outside the hole has obvious advantage. Changing the nozzle glow geometry results in changing the nozzle HSI which is beneficial to optimize drilling different rock formations in different drilling environment. There are many concepts to vary the nozzle size while drilling. The drill bit nozzle geometry can be varied by causing a change of at least one physical property of the environment. | 12-26-2013 |
20140000906 | LINER FLOTATION SYSTEM | 01-02-2014 |
20140000907 | APPARATUS AND METHOD FOR BACKSEATING A GATE VALVE | 01-02-2014 |
20140000908 | ACTUATING DEVICE AND METHOD | 01-02-2014 |
20140000909 | System and Method for Servicing a Wellbore | 01-02-2014 |
20140014359 | Retrievable subsurface safety valve - A multi functional assembly adaptable within a tubing string conduit to serve as a safety valve against the possibility of a blow out. Both surface and subsurface controllable, it offers both a partially retrievable or totally retrievable system that allows unbiased and unlimited work over and wire line access to an entire tubing string and can provide safety for down hole well work. The preferred invention comprises a housing mandrel system including closure elements reciprocally mounted vertically within the safety valve conduit that when unengaged provides unrestricted flow and when engaged provides restriction amounting from limited flow to complete closure of a tubing string. The invention provides operational options to function hydraulically and mechanically while having the additional capability of being remotely controlled automatically, electronically, and manually. The hydraulic and mechanical activation systems of the safety valve can be set to operate individually, simultaneously and selectively within the housing mandrel conduit. | 01-16-2014 |
20140014360 | MULTI-CYCLE CIRCULATING TOOL - A method and apparatus for circulating fluid in a wellbore includes a bottom sub having a bottom sub port and a mandrel, wherein the mandrel substantially forms an inner bore of the circulating tool and includes a mandrel port. The circulating tool may also include an activation piston that is movable in a first direction and a port piston movable in a second direction when the activation piston moves in the first direction. The circulating tool may further include an inner sleeve coupled to the port piston and movable with the port piston, the inner sleeve having an inner sleeve port in selective communication with the mandrel port. When the inner sleeve port is in communication with the mandrel port at least partially, circulating fluid is allowed to flow through the bottom sub port to the wellbore. | 01-16-2014 |
20140014361 | Automatic Annular Blow-Out Preventer - The present invention relates to a blow-out prevented utilized to ensure that high pressure material stay contained and do not enter an oil platform riser, thereby preventing explosions, damage, oil spills, injury, loss of life and other issues that may be common to oil platform accidents. Specifically, the present invention relates to an automatic blow-out preventer that cuts off communication between a casing and a riser automatically when pressures rise within the casing. More specifically, the blow-out preventer comprises a plurality of curved blades or “petals” that automatically close to seal off casing pressure from riser pressure when pressure rises within the casing. | 01-16-2014 |
20140027126 | AUTONOMOUS VALVE - The invention relates to a method and apparatus for of controlling the flow of a fluid. The fluid comprises a liquid phase and a dissolved gas phase. The fluid passes through a valve, the valve comprising a fluid inlet and a movable body located in a flow path through the valve, the movable body being arranged to move freely relative to the opening of the inlet to vary the flow-through area through which the fluid flows by means of the Bernoulli effect. The dimensions of the valve are such that flow of the fluid past the movable body causes a drop in pressure to below the bubble point of the gas phase in the liquid phase, thereby increasing flow of the fluid through the valve. | 01-30-2014 |
20140034330 | SYSTEMS AND METHODS FOR FLOW REDUCTION OR ISOLATION IN A WELLBORE - Fluid flow reduction or cessation in a wellbore or pipe may be provided. A body member may be longitudinally translated through a wellbore or pipe. The body member may have an external wall facing an internal wall of the wellbore or pipe. The body member may have an internal flow path configured to facilitate communication of fluid within the wellbore or pipe through the body member. A braking force may be applied to the body member to slow and stop translation of the body member through the wellbore or pipe. A first fluidic seal may be provided between the external wall of the body member and the internal wall of the wellbore or pipe. The first fluidic seal may restrict fluid within the wellbore from being communicated between the external wall of the body member and the internal wall of the wellbore or pipe. A second fluidic seal may be provided restricting fluid within the wellbore or pipe from being communicated through the internal flow path of the body member. | 02-06-2014 |
20140048280 | METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW IN AN AUTONOMOUS VALVE USING A STICKY SWITCH - Apparatus and methods are described for autonomously controlling fluid flow in a tubular in a wellbore. A fluid is flowed through an inlet passageway into a biasing mechanism. A fluid flow distribution is established across the biasing mechanism. The fluid flow distribution is altered in response to a change in the fluid characteristic over time. In response, fluid flow through a downstream sticky switch assembly is altered, thereby altering fluid flow patterns in a downstream vortex assembly. The method “selects” based on a fluid characteristic, such as viscosity, density, velocity, flow rate, etc. The biasing mechanism can take various forms such as a widening passageway, contour elements along the biasing mechanism, or a curved section of the biasing mechanism passageway. The biasing mechanism can include hollows formed in the passageway wall, obstructions extending from the passageway wall, fluid diodes, Tesla fluid diodes, a chicane, or abrupt changes in passageway cross-section. | 02-20-2014 |
20140048281 | Pressure Activated Down Hole Systems and Methods - Systems and methods for activating a down hole tool in a wellbore. A piston is moveable from a first position to a second position for activating the down hole tool. The piston includes a first side exposed to a first chamber, and a second side exposed to a second chamber. A rupture member has a first side exposed to the first chamber and a second side exposed to a third chamber. The rupture member is configured to rupture when a pressure differential between the first chamber and the third chamber reaches a predetermined threshold value, at which point the rupture member allows fluid communication between the first chamber and the third chamber. When the rupture member is intact, the piston is in the first position, and when the rupture member ruptures, the piston moves to the second position and activates the down hole tool. | 02-20-2014 |
20140048282 | METHOD AND APPARATUS FOR AUTONOMOUS DOWNHOLE FLUID SELECTION WITH PATHWAY DEPENDENT RESISTANCE SYSTEM - Apparatus and methods for controlling the flow of fluid, such as formation fluid, through an oilfield tubular positioned in a wellbore extending through a subterranean formation. Fluid flow is autonomously controlled in response to change in a fluid flow characteristic, such as density or viscosity. In one embodiment, a fluid diverter is movable between an open and closed position in response to fluid density change and operable to restrict fluid flow through a valve assembly inlet. The diverter can be pivotable, rotatable or otherwise movable in response to the fluid density change. In one embodiment, the diverter is operable to control a fluid flow ratio through two valve inlets. The fluid flow ratio is used to operate a valve member to restrict fluid flow through the valve. | 02-20-2014 |
20140060852 | Pressure Testing Valve and Method of Using the Same - A wellbore system comprising a casing, and a pressure testing valve incorporated within the casing and comprising a sleeve positioned within a housing and transitional from a first to a second position, and from the second to a third position, wherein, when the sleeve is in the first and second positions, the sleeve blocks a route of fluid communication via one or more housing ports and, when the sleeve is in the third position the sleeve does not block fluid communication, wherein the pressure testing valve is configured such that a force in the direction of the second position to the sleeve causes the sleeve to transition to the second position, and wherein the pressure testing valve is configured such that a reduction of the force in the direction of the second position to the sleeve causes the sleeve to transition to the third position. | 03-06-2014 |
20140069659 | GAS LIFT VALVES - A method can include selecting a ratio of a first effective cross-sectional area of a first component of a gas lift valve to a second effective cross-sectional area of a second component of the gas lift valve; charging a chamber of the gas lift valve; and positioning the gas lift valve in a pocket to expose the gas lift valve to a tubing pressure and a casing pressure, where transitioning of the gas lift valve from a closed state to an open state depends at least in part on the selected ratio. Various other apparatuses, systems, methods, etc., are also disclosed. | 03-13-2014 |
20140076577 | SYSTEM AND METHOD FOR REDUCING PRESSURE FLUCTUATIONS IN AN OILFIELD PUMPING SYSTEM - Presented herein is a system, method, and assembly for reducing pressure fluctuations in an oilfield pumping system. The pressure fluctuation dampening assembly includes a junction, a dampening chamber, and a supply of a compressible medium. The compressible medium is supplied so as to form an interface between the fluid and the compressible medium such that a pressure fluctuation of fluid passing through the junction is reduced. | 03-20-2014 |
20140076578 | Downhole Tool - A downhole tool comprising an inner sleeve with a plurality of sleeve ports and a housing positioned radially outwardly of the inner sleeve and having a plurality of housing ports, with the housing and inner sleeve partially defining a space radially therebetween. The space is occupied by a shifting sleeve. A fluid path extends between the interior flowpath of the tool and the space. A fluid control device, such as a burst disk, occupies at least portion of the fluid path. In one state, the shifting sleeve is in a first position between the housing ports and the sleeve ports to prevent fluid flow between the interior flowpath and exterior of the tool. The fluid control device may selectively permit fluid flow, and thus pressure communication, into the annular space to cause a differential pressure across the shifting sleeve. When a sufficient differential pressure is reached, the shifting sleeve is moved to a second position, which opens the communication paths through the housing and sleeve ports between the interior flowpath and exterior flowpath of the tool. | 03-20-2014 |
20140083713 | Secondary System and Method for Activating a Down Hole Device - Disclosed is a secondary system and method for initiating a down hole operation in a wellbore when a primary activation system fails. The primary activation system is configured to provide fluid communication between a first chamber and a second chamber in response to a primary activation operation. The secondary activation system includes a passageway between the first chamber and the second chamber, and a rupture member positioned in the passageway. The rupture member has a threshold pressure differential at which the rupture member ruptures to afford fluid communication between the first chamber and the second chamber to thereby initiate the down hole operation if the primary activation system fails. The primary activation operation may be configured to move a trigger member to initiate the down hole operation, whereas the secondary activation operation may be configured to initiate the down hole operation without moving the trigger member. | 03-27-2014 |
20140083714 | Single Trip Multi-Zone Completion Systems and Methods - Disclosed are systems and methods of producing from multiple production zones with a single trip multi-zone completion system. One single trip multi-zone completion system includes an outer completion string having at least one sand screen arranged thereabout and an interval control valve coupled to the at least one sand screen, a production tubing communicably coupled to the outer completion string at a crossover coupling, a control line extending external to the production tubing and being communicably coupled to the crossover coupling, and a surveillance line extending from the crossover coupling external to the outer completion string and interposing the at least one formation zone and the at least one sand screen, the surveillance line being communicably coupled to the interval control valve. | 03-27-2014 |
20140083715 | REMOTELY OPERATED PRODUCTION VALVE AND METHOD - A method of actuating multiple valves in a well can include applying a pressure cycle to the valves without causing actuation of any of the valves, and then simultaneously reducing pressure applied to the valves, thereby actuating the valves. Another method can include releasing a locking device of each valve which prevents actuation, and then reducing pressure applied to the valves, thereby actuating the valves. A valve can include a port which provides for fluid communication between an exterior and an interior of the valve, a closure member which selectively permits and prevents fluid flow through the port, the closure member permits flow through the port in response to a decrease in a pressure differential from the interior to the exterior of the valve, and a locking device which prevents displacement of the closure member, the locking device being released in response to mechanical force applied to the locking device. | 03-27-2014 |
20140096976 | REMOTE AND MANUAL ACTUATED WELL TOOL - A well tool having an actuator sleeve in a housing. The actuator sleeve has an internal shifting tool engaging profile. The tool has an actuator in the housing that is responsive to a remote signal to change from an unactuated state to an actuated state and shift the actuator sleeve from a first position to a second position. A collet in the housing is supported to couple the actuator sleeve to the actuator while the actuator changes from the unactuated state to the actuated state and is unsupported to allow the actuator sleeve to move relative to the actuator when the actuator is in the actuated state. | 04-10-2014 |
20140110128 | VARIABLE FLOW RESISTANCE FOR USE WITH A SUBTERRANEAN WELL - A variable flow resistance system for use with a subterranean well can include a structure which displaces in response to a flow of a fluid composition, whereby a resistance to the flow of the fluid composition changes in response to a change in a ratio of desired to undesired fluid in the fluid composition. Another system can include a structure which rotates in response to flow of a fluid composition, and a fluid switch which deflects the fluid composition relative to at least two flow paths. A method of variably resisting flow in a subterranean well can include a structure displacing in response to a flow of a fluid composition, and a resistance to the flow of the fluid composition changing in response to a ratio of desired to undesired fluid in the fluid composition changing. Swellable materials and airfoils may be used in variable flow resistance systems. | 04-24-2014 |
20140116720 | High Temperature Back Pressure Valve - A back pressure valve for sealing a wellbore. The back pressure valve has a cylindrical body with threads designed to engage threads in the opening of a tubing hanger within the wellbore. The back pressure valve also has a metal sealing surface. When the threads of the back pressure valve engage the threads in the opening of the tubing hanger, the metal sealing surface of the valve seals against the metal of the tubing hanger, forming a metal to metal seal. | 05-01-2014 |
20140116721 | Downhole Tools, System and Method of Using - A downhole tool comprising a nested sleeve moveable from a closed position to an open position following actuation of a fluid control device. The fluid control device may selectively permit fluid flow, and thus pressure communication, into the annular space to cause a differential pressure across the shifting sleeve, and thereby moving the shifting sleeve to an open position. A static plug seat is positioned in the tubing or casing upwell of the downhole tool. When the shifting sleeve is opened, fluid flow is established through the static plug seat, allowing a dissolvable or disintegrable ball or other plug to engage the plug seat, preventing fluid flow past the plug seat to the opened downhole tool, thereby permitting pressurization of the tubing or casing, such as for a pressure test. Disintegration of the ball allows fluid communication to be re-established with the downhole tool, permitting fluid to flow through the tubing for subsequent operations. | 05-01-2014 |
20140124212 | FLAPPER VALVE AND METHOD OF VALVING A TUBULAR - A flapper valve includes a housing, a seat movably disposed at the housing at least between a first position and a second position, a flapper movably disposed at the seat at least between a seated position and an unseated position and at least one biasing member. The at least one biasing member is configured to bias the flapper toward the seated position when the seat is in the first position and to bias the flapper toward the unseated position when the seat is in the second position | 05-08-2014 |
20140124213 | SLEEVE FRACTURING ASSEMBLY, DEVICE USING THE SAME AND METHOD FOR USING THE SAME - The present disclosure relates to a sleeve fracturing assembly including a composite sleeve and an opening tool. The composite sleeve and the opening tool can automatically engage with each other via teeth-shaped members arranged thereon so as to open the composite sleeve. The present disclosure further relates to a sleeve fracturing device, which includes a plurality of composite sleeves and opening tools, wherein each composite sleeve and opening tool can achieve unique engagement. The present disclosure still further relates to a method of using the sleeve fracturing device. | 05-08-2014 |
20140138097 | CEMENTING PLUG APPARATUS AND METHOD - In an exemplary embodiment, an apparatus includes a valve assembly, the valve assembly including a tubular member and a valve connected thereto, wherein the valve permits fluid flow through the tubular member in a first direction and prevents fluid flow through the tubular member in a second direction that is opposite the first direction. A plug is adapted to be secured to the valve assembly so that the plug is prevented from moving, relative to the valve assembly, in the first and second directions. In an exemplary embodiment, the apparatus is a cementing plug apparatus, which can plug a tubular string or casing so that fluid flow therethrough is prevented. In an exemplary embodiment, the tubular string or casing may be positioned within a preexisting structure such as, for example, a wellbore. | 05-22-2014 |
20140138098 | SEAT APPARATUS AND METHOD - A downhole fracturing system including a seat assembly having a plurality of like-sized openings therein. Each of the like-sized openings has a cross sectional area complementary to a corresponding plurality of objects such that each of the objects is matable therewith to substantially inhibit fluid flow through each like-sized opening. The objects have dimensions insufficient to mate with an opening in a next adjacent upstream seat assembly. A method of hydraulic fracturing is also included. | 05-22-2014 |
20140138099 | GAS LIFT BARRIER VALVE - A gas lift valve can include a degradable component; a valve; and a longitudinally extending tubular body that defines a flow path therein that includes the valve disposed between the degradable component and an opening of the tubular body. | 05-22-2014 |
20140144649 | ELECTRICALLY- POWERED SURFACE - CONTROLLED SUBSURFACE SAFETY VALVES - A subsurface safety valve system for a wellbore within a subterranean formation is described. The system can include a power source that generates power, and a delivery system disposed within the wellbore and electrically coupled to the power source. The system can also include at least one safety valve disposed within the wellbore and electrically coupled to the delivery system, where the at least one safety valve remains open while the at least one safety valve receives the power from the delivery system, and where the at least one safety valve closes when the at least one safety valve stops receiving power from the delivery system. The system can further include production tubing mechanically coupled to a distal end of the at least one safety valve, where the at least one safety valve shuts in a cavity within production tubing when the at least one safety valve closes. | 05-29-2014 |
20140151062 | Wellhead Flowback Control System and Method - A wellbore servicing system disposed at a wellbore, the wellbore servicing system comprising at least one wellbore servicing equipment component, wherein a flow path extends from the wellbore servicing system component into the wellbore, and a flow-back control system, wherein the flow-back control system is disposed along the flow path, and wherein the flow-back control system is configured to allow fluid communication via the flow path in a first direction at not less than a first rate and to allow fluid communication via the flow path in a second direction at not more than a second rate, wherein the first rate is greater than the second rate. | 06-05-2014 |
20140151063 | Chemical deepwater stimulation systems and methods - Systems and methods for performing operations on a well include first and second flow control devices positioned between upper and lower sections of a conduit. An upper connector assembly engaged with the upper section includes connectors adapted for connection to a chemical stimulation device, a blowout preventer, or other well intervention apparatuses. A lower connector assembly engaged with the lower section includes connectors adapted for connection to a chemical stimulation device, a running tool, wellbore conduits, or other well intervention apparatuses. The two connector assemblies, above and below the flow control devices, enable sequential or simultaneous operations to be performed, and can enable operations to be performed independent of the state of the flow control devices. | 06-05-2014 |
20140151064 | Hybrid-Tieback Seal Assembly Using Method and System for Interventionless Hydraulic Setting of Equipment when Performing Subterranean Operations - Hybrid-tieback seal assemblies, interventionless setting assemblies, and associated methods of setting downhole components of the hybrid-tieback seal assemblies using such interventionless setting assemblies are disclosed. A hybrid-tieback seal assembly comprises one or more anchoring bodies, one or more packer seal assemblies, and one or more interventionless hydraulic setting systems. A method of setting downhole equipment comprises applying a pressure to a compensating volume and providing a working volume, wherein the working volume is separated from the compensating volume by one or more hydraulic control devices. A pressure is applied to the working volume in response to the pressure applied to the compensating volume. The pressure applied to the compensating volume is then reduced and the pressure applied to the working volume is captured by the hydraulic control devices. The captured pressure in the working volume is applied to set one or more of the anchoring bodies and packer seal assemblies. | 06-05-2014 |
20140158368 | Flow bypass device and method - Devices, systems and methods are disclosed for re-directing fluid flow from the interior of tubing placed in a well to the exterior of the tubing by use of selectively actuatable valves operable by engagement of a plug on a plug seat. The devices, systems, and methods disclosed may provide a flowback bypass for the flow of fluids around obstructions in the tubing when those obstructions occur at a predicted location within the tubing. The systems, devices and methods may also include a locking system operable by, among other things, plug and plug seat valves, and such locking system may be used to prevent opening of the flowback bypass until after a predetermined event has occurred. | 06-12-2014 |
20140158369 | DEVICES AND METHODS FOR CONVEYING A TOOL ALONG A WELLBORE - An apparatus for flowing a tool string along a wellbore tubular includes a flow restrictor having a diametrically expanded position and a diametrically retracted position. The flow restrictor sealingly engages the wellbore tubular when in the diametrically expanded position. The apparatus also includes a joint connected to the flow restrictor. The joint actuates the flow restrictor between the expanded position to the retracted position while moving between an open and a closed position. | 06-12-2014 |
20140158370 | System and Method for Servicing a Wellbore - A wellbore servicing system, comprising a sleeve system comprising a ported case, a sliding sleeve within the case and movable between a first sleeve position in which the sleeve restricts fluid communication via the case and a second sleeve position in which the sleeve does not, a radially divided segmented seat movable between a first seat position in which the seat restricts movement of the sleeve and a second seat position in which the seat does not, and a sheath covering a portion of the seat, the sleeve system being transitionable from a first, to a second, to a third mode, in the first mode, the sleeve is in its first position and the seat in its first position, in the second mode, the sleeve is in its first position and the seat in its second position, and, in the third mode, the sleeve is in its second position. | 06-12-2014 |
20140166302 | INTELLIGENT COMPLETION SYSTEM FOR EXTENDED REACH DRILLING WELLS - Systems and methods for completing a wellbore. The system may include a first outer tubular member having an inflow control device configured to allow fluid to pass radially through the first outer tubular member. A second outer tubular member may be coupled to the first outer tubular member via an axial coupling. The second outer tubular member may have an inflow control device configured to allow fluid to pass radially through the second outer tubular member. An inner tubular defining an inner bore may be disposed at least partially within the first outer tubular member, the second outer tubular member, or a combination thereof such that an annulus is formed radially therebetween. The inner tubular member may include a flow control device configured to allow fluid to pass radially between the inner bore and the annulus. | 06-19-2014 |
20140182861 | Casing or Liner Barrier with Remote Interventionless Actuation Feature - A tubular string is run into a wellbore with a remotely actuated valve near a lower end adjacent a cementing shoe. The valve is triggered to operate without intervention such as by mud pulses generated at the surface and recognized by a sensor linked to a processor adjacent the valve to trigger the valve to close. Alternative actuation systems are envisioned for the valve that is located near the cementing shoe. | 07-03-2014 |
20140196908 | INTERNAL LOCKDOWN SNUBBING PLUG - A system, including a plug, including one or more fluid pathways extending between upstream and downstream sides of the plug, and an internal lock positionable in an unlocked position and a locked position, wherein the internal lock is resiliently biased to the locked position upon release from the unlocked position, wherein the locked position is configured to internally secure the plug within a wellhead component. | 07-17-2014 |
20140209319 | SYSTEM AND METHOD FOR REDUCTION OF AN EFFECT OF A TUBE WAVE - A tube wave reduction system for a borehole includes a tubular member; one or more openings in the tubular member, the one or more openings having a through-passage and a deformation region surrounding the through-passage; and an absorber in fluid communication with the one or more openings. Also included is a method for reducing an effect of a tube wave. | 07-31-2014 |
20140209320 | PORTABLE RAM BLOCK CHANGER - An apparatus for engaging and moving a ram block. In some embodiments, the apparatus, or ram block changer, includes a support bracket coupled to a blowout preventer and an articulated arm releasably coupled to the ram block. The ram block changer may further include a pivot coupling assembly having a first axis of rotation. The pivot coupling assembly extends through the support bracket and the articulated arm, wherein the articulated arm is rotatable about the first axis of rotation relative to the support bracket. The articulated arm may include a first member receiving the pivot coupling assembly therethrough, a second member coupled to the ram block, and a second pivot coupling assembly having a second axis of rotation spaced apart from the first axis of rotation and extending through the first and second members. The second member is rotatable about the second axis of rotation relative to the first member. | 07-31-2014 |
20140216754 | FRACPOINT OPTIMIZATION USING ICD TECHNOLOGY - An apparatus for controlling a flow of a fluid between a wellbore tubular and a formation may include a frac tool having at least one port in selective fluid communication with the formation, and an inflow control device having a flow control path configured to provide a predetermined pressure drop for a flowing fluid. The inflow control device may have a flow coupler configured to provide selective fluid communication with the at least one port. | 08-07-2014 |
20140216755 | ANNULAR BARRIER WITH PRESSURE AMPLIFICATION - The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole for providing zone isolation between a first zone and a second zone of the borehole, comprising a tubular part for mounting as part of the well tubular structure and having an expansion opening, an expandable sleeve surrounding the tubular part, each end of the expandable sleeve being connected with the tubular part, and an annular barrier space between the tubular part and the expandable sleeve, wherein the annular barrier further comprises a pressure intensifying means having an inlet in a first end in fluid communication with the expansion opening and having an outlet in a second end in fluid communication with the annular barrier space. | 08-07-2014 |
20140231094 | AUTONOMOUS FLUID CONTROL DEVICE HAVING A RECIPROCATING VALVE FOR DOWNHOLE FLUID SELECTION - An apparatus and method autonomously controls fluid flow in a subterranean well, as the fluid changes in a characteristic, such as viscosity, over time. An autonomous reciprocating member has a fluid flow passageway there through and a primary outlet and at least one secondary outlet. A flow restrictor, such as a viscosity dependent choke or screen, is positioned to restrict fluid flow through the primary outlet. A vortex chamber is positioned adjacent the reciprocating member. The reciprocating member moves between a first position where fluid flow is directed primarily through the primary outlet of the reciprocating member and into the primary inlet of the vortex assembly, and a second position where fluid flow is directed primarily through the at least one secondary outlet of the reciprocating member and into the at least one secondary inlet of the vortex assembly. The movement of the reciprocating member alters the fluid flow pattern in the adjacent vortex chamber. | 08-21-2014 |
20140231095 | AUTONOMOUS FLUID CONTROL DEVICE HAVING A MOVABLE VALVE PLATE FOR DOWNHOLE FLUID SELECTION - An apparatus and method are described for autonomously controlling flow of fluid in a subterranean well, where fluid flow is controlled based on a fluid characteristic, such as viscosity or density, which changes over time. Fluid flows into a vortex assembly where a centrifugal force is imparted to the fluid. A less viscous fluid will have a relatively greater velocity and centrifugal force than a more viscous fluid. The fluid exits the vortex chamber by both a vortex outlet and a peripheral outlet. An autonomous valve element moves between an open position, in which fluid flows freely through the peripheral outlet, and a closed position, in which fluid flow through the peripheral outlet is restricted. The valve element is moved by the centrifugal force of the fluid, such that a fluid having a higher centrifugal force moves the valve element to the closed position, thereby reducing the total fluid flow through the vortex assembly. | 08-21-2014 |
20140246207 | Fracturing System and Method - A system and method comprising at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. The system provides for the use of multiple ported sleeve assemblies for each stage of a hydrocarbon producing well that can be opened with a single element, and multiple stages, each have thFracturinge ability to be opened with a single element size. | 09-04-2014 |
20140251636 | Downhole Tools, System and Method of Using - The present disclosure relates to downhole tools, including downhole valves, which actuate via a pressure differential created across a shifting element having one or more pressure surfaces isolated from fluid, and fluid pressure, flowing through the interior flowpath. Embodiment downhole tools of the present disclosure may actuate in response to, among other signals, fluid pressure in the interior flowpath of the tool and fluid pressure communicated to a pressure surface of the shifting sleeve from the exterior of the tool. Certain embodiments may also have an outlet connector whereby fluid pressure from the downhole tool may be communicated to its exterior, including to additional tools in the tubing strings via flowlines connecting the two tools. | 09-11-2014 |
20140262320 | Wellbore Servicing Tools, Systems and Methods Utilizing Near-Field Communication - A wellbore servicing tool comprising a body, a near field communication (NFC) system disposed within the body and comprising a processor configured to communicate via NFC, one or more antennas each in signal communication with the processor, at least one input/output (I/O) device in signal communication with the processor, and a power supply in electrical communication with the processor. A wellbore servicing method comprising positioning a first node within a wellbore, moving a second node through the wellbore such that the second node comes into communication with the first node, wherein the first node and the second node establish signal communication via a near field communication (NFC) signal, wherein data is communicated from the first node to the second node via NFC, from the second node to the first node via NFC, or combinations thereof. | 09-18-2014 |
20140262321 | Wireless Activatable Valve Assembly - A wireless actuation system comprises a transmitter, an actuation system comprising a receiving antenna, and one or more sliding members transitional from a first position to a second position. The transmitter is configured to transmit an electromagnetic signal, and the sliding member prevents a route of fluid communication via one or more ports of a housing when the sliding member is in the first position. The sliding member allows fluid communication via the one or more ports of the housing when the sliding member is in the second position, and the actuation system is configured to allow the sliding member to transition from the first position to the second position in response to recognition of the electromagnetic signal by the receiving antenna. | 09-18-2014 |
20140262322 | Apparatus and Methods for Well Control - A completion joint | 09-18-2014 |
20140262323 | METHOD AND APPARATUS FOR ACTUATION OF DOWNHOLE SLEEVES AND OTHER DEVICES - A downhole equalization assembly permits selective and remote opening of at least one downhole port or pathway to allow communication of pressure and/or fluid flow from inside a pressure containing system (such as, for example, a tubular pipe or other pressure containment system) to the outside of the containment system, or vice versa. A control device generating a magnetic field is inserted into a well and conveyed to a downhole equalization assembly. When the control device passes through an equalization assembly, an electrical current is generated that triggers an electronic counter. When a predetermined counter number is reached, a sliding sleeve is shifted, thereby exposing ports and/or pathways extending between the inside and outside of the equalization assembly. No physical contact or mechanical interference is required between the control device and any other components in order to actuate the equalization assembly. | 09-18-2014 |
20140284062 | METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW IN AN AUTONOMOUS VALVE USING A STICKY SWITCH - Apparatus and methods are described for autonomously controlling fluid flow in a tubular in a wellbore. A fluid is flowed through an inlet passageway into a biasing mechanism. A fluid flow distribution is established across the biasing mechanism. The fluid flow distribution is altered in response to a change in the fluid characteristic over time. In response, fluid flow through a downstream sticky switch assembly is altered, thereby altering fluid flow patterns in a downstream vortex assembly. The method “selects” based on a fluid characteristic, such as viscosity, density, velocity, flow rate, etc. The biasing mechanism can take various forms such as a widening passageway, contour elements along the biasing mechanism, or a curved section of the biasing mechanism passageway. The biasing mechanism can include hollows formed in the passageway wall, obstructions extending from the passageway wall, fluid diodes, Tesla fluid diodes, a chicane, or abrupt changes in passageway cross-section. | 09-25-2014 |
20140290962 | VALVE SYSTEM - A valve system for use in a wellbore includes a side pocket mandrel and one or more well tools, where the side pocket mandrel includes an elongated body section provided with a connector at its ends, the elongated body section being provided with a substantially fully open main bore for alignment with the well tubing and an offset side pocket bore. At least one through opening is provided in the side pocket mandrel, leading into the side pocket bore, and at least one through opening is provided in the internal wall, leading into the main bore, where the at least two openings are in fluid communication through the side pocket bore, in which side pocket bore at least two valves are arranged in series to form a double fluid barrier between the main bore and an outside of the pocket mandrel, the at least two valves being independently retrievable through at least one installation opening arranged in the internal wall of the side pocket mandrel. | 10-02-2014 |
20140299329 | Downhole Completion Tool - A downhole tool and method of operation thereof is provided. The downhole tool may be configured to permit fluid communication between a combined flowbore of the casing string and the downhole tool and the subterranean formation or wellbore, or both, after a pressure test has been completed, a second threshold pressure is reached or applied, and a third threshold pressure has been applied to the downhole tool. | 10-09-2014 |
20140299330 | Wireless Activatable Valve Assembly - A wireless actuation system comprises a transmitter, an actuation system comprising a receiving antenna, and one or more sliding members transitional from a first position to a second position. The transmitter is configured to transmit an electromagnetic signal, and the sliding member prevents a route of fluid communication via one or more ports of a housing when the sliding member is in the first position. The sliding member allows fluid communication via the one or more ports of the housing when the sliding member is in the second position, and the actuation system is configured to allow the sliding member to transition from the first position to the second position in response to recognition of the electromagnetic signal by the receiving antenna. | 10-09-2014 |
20140318806 | APPARATUS AND METHOD FOR CONTROLLING A DOWNHOLE DEVICE - Apparatus for controlling a downhole device in a well has a body with a control slot and pin movable in the slot. The slot has a first inactive loop in which the pin can cycle between different idling configurations, and a second active loop in which the pin can move between different configurations which correspond to active and inactive configurations of the downhole device. The pin can be switched between the first and second loops, and can cycle between the different configurations within without switching between the different loops. The slot can be provided on a piston, and the axial movement of the piston in the bore can drive the relative movement of the pin and the slot. | 10-30-2014 |
20140326465 | HYBRID DUMP BAILER AND METHOD OF USE - A hybrid dump bailer is disclosed herein comprising a bailer tubes for containing a material, such as cement slurry, to be dumped. The hybrid dump bailer comprises a pressure pulse piston that is accelerated by a spring causing a pressure pulse to expel the material to be dumped. The hybrid dump bailer further comprises a collet, a retaining rod, a piston, valve, and a supply of pressurized fluid which is holds the pressure pulse piston in place while the spring is compressed. Once the valve is opened, releasing the pressurized fluid, the retaining rod separates from the collet allowing the pressure pulse piston to accelerate can produce the pressure pulse to dump the material. | 11-06-2014 |
20140332228 | Fracturing Using Re-Openable Sliding Sleeves - Zone isolation is a leading concern for operators that wish to fluidly treat a well. By utilizing a ported sliding sleeve assembly that is highly resistant to leaking after being opened and closed through multiple cycles a wellbore may be accessed at any ported sliding sleeve assembly location without plugging the wellbore below the ported sliding sleeve assembly and will allow any ported sliding sleeve assembly to be accessed in any order. | 11-13-2014 |
20140332229 | Interventionless Adjustable Flow Control Device Using Inflatables - A flow control device comprises a fluid pathway configured to provide fluid communication between an exterior of a wellbore tubular and an interior of the wellbore tubular, a flow restriction disposed in the fluid pathway, a one-way valve disposed in the fluid pathway to substantially block fluid flow from the interior of the wellbore tubular to the fluid pathway and to allow fluid flow from the fluid pathway to the interior of the wellbore tubular, and an inflatable seal disposed between an opening to the interior of the wellbore tubular and the fluid pathway, wherein the inflatable seal is configured to inflate to substantially block the fluid pathway in response to a fluid pressure differential between the interior of the wellbore tubular and the exterior of the wellbore tubular that exceeds a predefined threshold. | 11-13-2014 |
20140332230 | DOUBLE SWIVEL APPARATUS AND METHOD - A double swivel for use with a top drive power unit supported for connection with a well string in a well bore to selectively impart longitudinal and/or rotational movement to the well string, a feeder for supplying a pumpable substance such as cement and the like from an external supply source to the interior of the well string in the well bore without first discharging it through the top drive power unit including a mandrel extending through double sleeves which are sealably and rotatably supported thereon for relative rotation between the sleeves and mandrel. The mandrel and sleeves have flow passages for communicating the pumpable substance from an external source to discharge through the sleeve and mandrel and into the interior of the well string below the top drive power unit. The unit can include a packing injection system, clamp, and novel packing configuration. In an alternative embodiment the unit can include a plug or ball insertion tool. | 11-13-2014 |
20140332231 | DOWNHOLE ACTUATION BALL, METHODS AND APPARATUS - An actuation ball for a downhole tool, the actuation ball includes a ball body having an outer surface defining a seating surface with a substantially circular shape in section encircling an axis of the actuation ball; and a flexible protrusion attached to the ball body and extending substantially coaxially relative to the seating surface. Another actuation ball for a downhole tool, the actuation ball includes a body having an outer surface defining a seating surface, the body having a specific gravity less than 2.6. | 11-13-2014 |
20140332232 | ANNULAR BARRIER WITH AN EXPANSION DETECTION DEVICE - The present invention relates to an annular barrier ( | 11-13-2014 |
20140338922 | Electric Control Multi-Position ICD - A production sleeve assembly for use in a wellbore comprises a wellbore tubular, a plurality of fluid pathways configured to provide fluid communication within the downhole component, a plurality of electronic actuators configured to selectively provide fluid communication through one or more of the plurality of fluid pathways, and at least one sensor coupled to the plurality of electronic actuators. One or more of the plurality of electronic actuators are configured to selectively actuate to allow or prevent fluid flow through a corresponding fluid pathway of the plurality of fluid pathways in response to the at least one sensor receiving a suitable signal. | 11-20-2014 |
20140345874 | RETRIEVABLE STIMULATION FRAC PLUG WITH BALL AND SEAT - A retrievable stimulation frac plug for a well casing, having an elongate mandrel having a fluid bore, a valve seat, adapted to receive a sealing member for selectively sealing the fluid bore, a sealing mechanism for releasably sealing between the mandrel and the casing, a slip mechanism for releasably engaging the well casing, and a valve seat bypass, moveable between a closed position and an open position, adapted to provide a bypass past the valve seat. | 11-27-2014 |
20140345875 | Syntactic Foam Frac Ball and Methods of Using Same - A method of servicing a wellbore comprising providing a flowable component comprising syntactic foam, and communicating the flowable component into a wellbore. | 11-27-2014 |
20140345876 | INFLOW CONTROL SOLUTIONS FOR WELLBORES - A selectively openable inflow control sub includes a sliding sleeve valve slidable within an inner bore of the sub between a closed-port position, closing the inflow port, and an open-port position, opening the inflow port to fluid flow therethrough, the sliding sleeve valve is axially moveable from the closed-port position to the open-port position by pushing the sleeve with a mill string. | 11-27-2014 |
20140345877 | SELECTIVELY DEGRADABLE PASSAGE RESTRICTION - An actuation system and method, the system including a tubular having a passage, and an assembly disposed with the tubular. The assembly includes a degradable restriction, the restriction only partially blocking the passage prior to being degraded. The assembly is configured to receive and prevent further movement of a restrictor through the tubular prior to the restriction being degraded. The assembly is further configured to release the restrictor when the restriction is degraded. | 11-27-2014 |
20140352974 | REACTIVE CHOKE FOR AUTOMATIC WELLBORE FLUID MANAGEMENT AND METHODS OF USING SAME - Fluid actuated chokes include an expandable material that expands due to an undesired fluid coming in contact with the choke. The choke includes one or more passageways through which desired fluids from a well flow unimpeded. The choke is disposed in a downhole tool as part of a downhole completion. When one or more undesired fluids enters a production stream flowing through the downhole completion and, thus, the downhole tool, and contacts the choke, the expandable material expands causing fluid flow through the passageway(s) to be restricted and, in some cases, completely closed off. Thus, the choke automatically detects and reacts, i.e., restricts fluid flow through the choke, when contacted by the undesired fluid(s). | 12-04-2014 |
20140367115 | MULTI POWER LAUNCH SYSTEM FOR PRESSURE DIFFERENTIAL DEVICE - An injection mandrel may include a valve controlling the flow of the injection fluid. A valve actuator operatively connected to the valve sequentially generates a first predetermined pressure and a larger second predetermined pressure in the valve. The valve actuator generates the second predetermined pressure in the valve in response to a predetermined change in a pressure at an annulus surrounding the mandrel. | 12-18-2014 |
20140374119 | Hydraulic Anchor for Downhole Packer - A hydraulic anchor is coupled to a packer subassembly of a tool string. The hydraulic anchor, when actuated by fluid pressure, engages the surrounding wellbore, holding the tool string in place within the wellbore. A packer may then be actuated, held in position within the wellbore by the hydraulic anchor. In some embodiments, an inflatable packer may be held in the desired location by the hydraulic anchor. In some embodiments, a straddle packer assembly may be held in place by the hydraulic anchor. In some embodiments, a swellable packer may be held in place during the swelling process by the hydraulic anchor. | 12-25-2014 |
20150013991 | DOWNHOLE TOOL HAVING A SHOCK-ABSORBING SLEEVE - An apparatus having a shock-absorbing sleeve is disclosed. The apparatus comprises a housing, an axially moveable sleeve received in the housing and a sealed annular space having a fixed volume axially between the housing and the sleeve. A barrier axially moveable with the sleeve divides the annular space into a first and a second chambers. The first and second chambers are filled with uncompressible dampening fluid. One or more metering passages across the barrier fluidly connect the first and chambers. During the axial movement of the sleeve, the volume of the first chamber is reduced and that of the second chamber is increased, forcing the fluid in the first chamber to flow into the second chamber in a controlled manner to dampen the movement of the sleeve. | 01-15-2015 |
20150021041 | SETTING ASSEMBLY AND METHOD THEREOF - A setting assembly including a settable member. A housing including a chamber and a setting material disposed in the chamber and having a first phase of matter and a second phase of matter. The setting material occupying a greater volume in the second phase than in the first phase. The setting material arranged to exert a setting force on the settable member during transition of the setting material from the first phase to the second phase. Also included is a method of setting a settable member. | 01-22-2015 |
20150027723 | SELECTIVE ELECTRICAL ACTIVATION OF DOWNHOLE TOOLS - A method of activating a tool can include displacing a device in the tool, the device transmitting energy to a receiver of the tool, thereby activating the tool, and the transmitting including a control circuitry increasing electrical current flow between an electrical power source and a transmitter in response to a sensor detecting a predetermined stimulus downhole. A system can include a tool including a receiver and an electrical load, and a device which displaces relative to the tool, the device including a transmitter, a sensor and an electrical power source. Another method can include displacing a device in a tubular string including multiple downhole tools, each including a receiver and an electrical load, and the device including a transmitter and a sensor. The transmitter transmits energy to at least one of the receivers in response to sensor detection of a predetermined number of the tools traversed by the device. | 01-29-2015 |
20150027724 | Electronically-Actuated, Multi-Set Straddle Borehole Treatment Apparatus - A straddle apparatus deploys in a borehole with tubing to treat different zones of a formation. The apparatus has first and second packer elements and a flow element disposed on the apparatus. The first and second packer elements have fill ports in fluid communication with the tubing and have packer valves. These packer valves are biased to open fluid communication between the packer elements and the fill port so the packer elements can be inflated to seal off a section of the borehole when fluid pressure is applied down the tubing string. The flow unit has a flow port in fluid communication with the tubing and has a flow valve biased to close fluid communication between the flow port and the borehole. Once the elements inflate, one or more control units on the apparatus electronically activate the at packer valves to close fluid communication between the packer elements and the fill ports. Then, the one or more control units electronically activate the flow valve to open fluid communication between the flow port and the borehole so treatment can be applied to the formation zone in the isolated borehole section. | 01-29-2015 |
20150027725 | DOWNHOLE ACTIVATION ASSEMBLY WITH SLEEVE VALVE AND METHOD OF USING SAME - A downhole activation assembly for a wellsite is provided. The wellsite has a downhole tool deployable into a wellbore. The activation assembly includes a ball, a housing, an indexing assembly, and a sleeve valve. The housing is operatively connectable to the downhole tool, and has a housing passage for flow of fluid therethrough. The indexing assembly is positionable in the housing, includes a multiple position indexer and an indexing tube, and is operatively connectable to the downhole tool. The sleeve valve includes a fixed sleeve and a movable sleeve positionable in the housing passage of the housing and defines a ball passage therethrough. The sleeve valve has a valve seat defined therein to receive the ball such that the flow of the fluid is selectively restricted through the ball passage. The movable sleeve is engagable with the indexing tube to selectively shift the indexer between multiple positions whereby the downhole tool is selectively activatable. | 01-29-2015 |
20150027726 | DOWNHOLE APPARATUS - A downhole apparatus including a tubular body, first and second ports in a wall of the body, and a fluid pressure-responsive valve arrangement having a locked first configuration associated with a first pressure in which the first port is open and the second port is closed, an unlocked second configuration associated with a second pressure higher than the first pressure in which the first port is open and the second port is closed, and a third configuration associated with a third pressure lower than the second pressure in which the second port is open and the first port is closed. | 01-29-2015 |
20150034329 | Downhole Tool and Method - A downhole tool ( | 02-05-2015 |
20150034330 | Tool With Pressure-Activated Sliding Sleeve - A downhole tool and system for actuation of the tool. The tool includes a sliding sleeve assembly that is urged toward an opening position due to an interior pressure in the tool. A shear pin assembly hold the tool in the closed position. As pressure is increased to above a predetermined locking set point, a locking mechanism on the sliding sleeve radial engages the housing of the tool to lock the sliding sleeve to the housing. As pressure is further increased to a predetermined an activation set point, the shear pin assembly shears, but the sliding sleeve is maintained in the closed position by the locking mechanism. Only after the interior pressure is subsequently lowered to below a predetermined opening set point will the sliding sleeve shift to an open position. | 02-05-2015 |
20150034331 | CLUTCH APPARATUS AND METHOD FOR RESISTING TORQUE - A clutch employed in a tool string includes an annular housing and an annular sleeve arranged and moveable within the housing. The sleeve is configured to move into engagement with the housing to inhibit relative rotation and axial translation between the housing and the sleeve. | 02-05-2015 |
20150034332 | METHOD AND APPARATUS FOR RESTRICTING FLUID FLOW IN A DOWNHOLE TOOL - A ball seat valve employed in a downhole tool string includes a split-ring baffle that is configured to radially expand and to radially contract to catch a dropped ball. | 02-05-2015 |
20150034333 | Annular Flow Control Devices and Methods of Use - Disclosed are annular flow control devices and their methods of use. One flow control device includes an annular inner shroud coupled to a work string that defines one or more flow ports therein, and an annular outer shroud also coupled to the work string and radially offset from the inner shroud such that a channel is defined between at least a portion of the inner and outer shrouds, the channel being in fluid communication with at least one of the one or more flow ports and configured to restrict a flow rate of a fluid. | 02-05-2015 |
20150041146 | Magnetic Valve Assembly - An actuation device comprises a housing comprising one or more ports, a magnetic valve component, and a central flowbore. The central flowbore is configured to receive a disposable member configured to emit a magnetic field, and the magnetic valve component is configured to radially shift from a first position to a second position in response to interacting with the magnetic field. | 02-12-2015 |
20150041147 | OIL WELL SAFETY VALVE APPARATUS AND METHOD - An oil well control device automatically shuts in a well responsive to the removal of a work string (or other removable structure—ball retarding structure) from the device. The device is placed in the well as a section of the well casing. The device provides a pair of bores, one that aligns with the well bore or well casing, the other being a branch flow line containing a ball structure that will close the well if the drill pipe or drill string is removed. While conducting normal well activity (e.g. drilling, work over or the like) the ball retarder (e.g. work string) prevents entry of the ball structure into the main flow channel. | 02-12-2015 |
20150053415 | WELLBORE ANNULAR SAFETY VALVE AND METHOD - A well system includes an annular barrier separating the tubing-casing annulus into an upper annulus and a lower annulus and a barrier valve coupled with the annular barrier, the barrier valve permitting one-way fluid communication from the upper annulus to the lower annulus. The annular barrier may include a female polished bore receptacle integrated in the casing and a male seal assembly integrated in the tubing. The tubing bore and an annular fluid conduit extend through the male seal assembly substantially parallel to one another and the barrier valve is connected in the annular fluid conduit. | 02-26-2015 |
20150053416 | WELLBORE ANNULAR SAFETY VALVE AND METHOD - A well system includes an annular barrier separating the tubing-casing annulus into an upper annulus and a lower annulus and a barrier valve coupled with the annular barrier, the barrier valve permitting one-way fluid communication from the upper annulus to the lower annulus. The annular barrier may include dual cup packers. | 02-26-2015 |
20150053417 | Autonomous Inflow Control Device Having a Surface Coating - An autonomous inflow control system for use downhole comprises a flow ratio control system comprising one or more fluid inlets, and a pathway dependent resistance system comprising a vortex chamber. The one or more fluid inlets provide fluid communication between the flow ratio control system and the pathway dependent resistance system, and at least one of the one or more fluid inlets comprises a super hydrophobic surface. | 02-26-2015 |
20150053418 | INTEGRATED WELLHEAD ASSEMBLY - An integrated wellhead assembly is provided to enable free flow production and artificial lift production from a well without requiring removal and/or reconfiguration of the wellhead assembly. The wellhead assembly includes an upper portion and a lower portion forming an integrated assembly. The upper portion includes a flow tee and at least one set of rams. The lower portion includes a shoulder to receive a hanger. The upper portion may seal the bore of the wellhead assembly and provide full bore access to the bore of the wellhead assembly. | 02-26-2015 |
20150053419 | PASSIVE IN-FLOW CONTROL DEVICES AND METHODS FOR USING SAME - An apparatus for controlling a flow of a fluid between a wellbore tubular and a wellbore annulus may include an inflow control device configured to generate a predetermined pressure drop in the flowing fluid; a plurality of particulate control devices conveying the fluid to the inflow control device; and at least one fluid coupling conveying the fluid from at least one of the particulate control devices to the inflow control device. | 02-26-2015 |
20150053420 | FLOW CONTROL DEVICE FOR CONTROLLING FLOW BASED ON FLUID PHASE - A flow control device can include water in a chamber, the chamber having a variable volume, a flow restricting member which displaces in response to a change in the chamber volume, and a biasing device which influences a pressure in the chamber. A method of controlling flow of steam in a well can include providing a flow control device which varies a resistance to flow in the well, the flow control device including a chamber having a variable volume, water disposed in the chamber, and a biasing device. The biasing device influences the chamber volume. Another flow control device can include water in a chamber, the chamber having a variable volume, a flow restricting member which displaces in response to a change in the chamber volume, and a biasing device which reduces a boiling point of the water in the chamber. | 02-26-2015 |
20150060084 | AUTONOMOUS FLOW CONTROL SYSTEM AND METHODOLOGY - A technique facilitates regulation of flow through a flow control device to improve a well operation, such as a production operation. The technique utilizes a flow control device which has a valve positioned in a housing for movement between flow positions. The different flow positions allow different levels of flow through a primary flow port. At least one flow regulation element is used in cooperation with and in series with the valve to establish a differential pressure acting on the valve. The differential pressure is a function of fluid properties and is used to autonomously actuate the flow control device to an improved flow position. | 03-05-2015 |
20150068762 | APPARATUS AND METHODS FOR INHIBITING A SCREEN-OUT CONDITION IN A SUBTERRANEAN WELL FRACTURING OPERATION - A subterranean well fracturing system comprises a downhole well string having installed therein initially closed upstream and downstream sliding sleeve valve assemblies each openable to provide fracing fluid discharge outlets through well string side ports to an associated subterranean fracing zone. To inhibit an undesirable screen-out condition during formation fracturing, specially designed apparatus and methods are operative to sequentially (1) block the downstream valve seat, (2) open the blocked downstream valve seat using pressurized fracing fluid, (3) partially block the upstream valve seat, (4) open the partially blocked upstream valve seat using pressurized fracing fluid, a portion of which is flowed through the partially blocked upstream valve seat, and then (5) unblock the partially blocked upstream valve seat to permit a full flow of pressurized fracing fluid therethrough. In this manner, pressurized fracing fluid is simultaneously delivered to two fracing zones to inhibit a screen-out condition in the well string. | 03-12-2015 |
20150068763 | DOWNHOLE ACTUATOR - A downhole actuator typically for a downhole tool such as a valve, and typically for incorporation in a string of tubulars in an oil or gas well has a central axis with radially movable counterweights on opposite sides of the axis, which move radially outward to change the activation state of the actuator. The counterweights are supported by link arms which control the movement of the counterweights in response to centrifugal force created by rotation of the body, for example, during rotary drilling operations of the string. Radial outward movement of the counterweights typically transmits axial forces between sleeves at the upper and lower ends of the counterweights, so when the counterweights move radially outward, the upper and lower sleeves approach one another, which typically triggers the actuator. | 03-12-2015 |
20150075806 | TOE CIRCULATION SUB - A toe circulation sub for a wellbore liner, the toe circulation sub comprising: a body including a connection for connecting the body to a wellbore liner to define an inner facing portion open to an inner diameter of the liner and an outer facing portion open to an outer surface of the liner; a bore through the body from the inner facing portion to the outer facing portion; and, a ball seat in the bore formed to stop and seal with a ball to plug flow through the bore to close the toe circulation sub. The toe circulation sub is useful for methods and may be installed in a wellbore liner. | 03-19-2015 |
20150075807 | Apparatus and Methods for Selectively Treating Production Zones - In one aspect, an apparatus for selectively treating a plurality of zones around wellbore is disclosed that in one non-limiting embodiment includes an outer string for placement in the wellbore, the outer string including a packer above a flow port corresponding to each zone, wherein each packer is configured to be set independently and the flow port is configured to supply a treatment fluid to its corresponding zone when such flow port is open, an activation device coupled to each packer, wherein each such activation device is configured to be independently activated to set its corresponding isolation packer, and an inner string for placement in the outer string, the inner string including a frac port for supplying a fluid under pressure to each flow port. | 03-19-2015 |
20150075808 | System and Method for Fracturing a Well - A system and method for fracturing a well is disclosed herein. The system can comprise a base pipe comprising an insert port capable of housing a stop ball partially within the chamber of it, and a sliding sleeve. The sliding sleeve can comprise a first sleeve with an in inner surface. That inner surface can comprise a void. The first sleeve can be maneuverable into two positions. In the first position, the void can rest on a surface of the base pipe not comprising an insert port. Such positioning can prevent a stop ball from exiting the chamber of the base pipe. In the second position, the void can rest over an insert port. Such positioning can allow the stop ball to the chamber of the base pipe and to enter the void. | 03-19-2015 |
20150083434 | ANNULAR RELIEF VALVE - A pressure relief valve assembly may be coupled to one or more casings and/or tubular members to control fluid communication therebetween. In one embodiment, the valve assembly includes a tubular body having a port for fluid communication between an exterior of the tubular body and an interior of the tubular body; a chamber formed in a wall of the tubular body, the chamber in fluid communication with the port; a closure member disposed in the chamber and configured to control fluid communication through the port in response to a pressure differential; and a retaining member coupled to the closure member for retaining the closure member in an open position. | 03-26-2015 |
20150083435 | Wellhead Downhole Line Communication Arrangement - A communication arrangement is disclosed for communication between a downhole line and a wellhead body having a through-hole and a valve member for closing the through-hole. The communication arrangement provides a fluid passage that extends from a wellhead body port to the downhole line thus allowing communication between the wellhead body and a safety valve or valves and/or the injection of chemicals or fluids into the well without the need to rework the valve member or disable the valve member. | 03-26-2015 |
20150090462 | FLUID VENT ASSEMBLY AND METHOD OF VENTING FLUID - A housing for a downhole tool, having a fluid vent assembly comprising a port passing through the wall of the housing to transmit fluid through the port when the port is open, a sealing device to seal the port, and a cutting device to disrupt the sealing device and permit transmission of fluid through the port. The cutting device is driven axially through the sealing device without relative rotation between the two. The cutting device has an asymmetric blade to cut a coupon from the sealing device by a gradual and progressive disruption of the closure, typically cutting through only a portion the closure device, so that the coupon cut from the closure device remains attached to the closure device when the closure device is ruptured to open the seal. Typically the downhole tool comprises a downhole pump, and the housing comprises the shroud of the pump. | 04-02-2015 |
20150096762 | FLEXIBLE ZONE INFLOW CONTROL DEVICE - A device for controlling fluid flow from a subsurface fluid reservoir into a production tubing siring includes, a tubular member defining a central bore. At least one nozzle extends through a side wall of the tubular member. A popper is moveable between an open position where fluids can flow into the central, bore through the nozzle, and a closed position where the nozzle is fluidly sealed. A circumferential external bead profile is located, on the stem and a circumferential groove is located in the nozzle for mating with the head profile of the stem and maintaining the popper in a closed position. The device can also have a shear member disposed between the stem of the popper and an inner surface of the nozzle for supporting the popper in an open position before the popper Is moved to the closed position. | 04-09-2015 |
20150101823 | SEAT APPARATUS AND METHOD - An apparatus and method for restricting fluid flow with a seat assembly. The seat is configured to go from a first position, in which it is adapted to engage a plug element, to a second position, in which the plug element passes through the seat. A second portion of the seat, and alternatively of a housing in which the seat is disposed, is formed of a disintegrable material. The second portion of the seat and housing comprising the disintegrable material are isolated from a fluid flow when engaged with the seat. | 04-16-2015 |
20150101824 | ACTUATION MECHANISM FOR WATER HAMMER VALVE - The present invention discloses an actuation mechanism for a water hammer valve. The water hammer valve is initially prevented from operating, and an actuation mechanism for the water hammer valve is actuated by dropping one or more balls or other objects onto the valve. Once actuated, the pilot and piston mechanism in the water hammer valve operate to produce hydraulic pulses from an upstream pressurized fluid. | 04-16-2015 |
20150107848 | DOWNHOLE ZONE FLOW CONTROL SYSTEM - Methods and systems operate multiple downhole tools in wells based on hydraulic pressures supplied in control lines. The methods and systems pair each of the tools with a manifold enabling selective actuation of each of the tools from a remote location. Some embodiments include between three and twelve manifold and tool pairs configured for control independent from one another with four of the control lines. | 04-23-2015 |
20150114663 | ANNULAR GAS LIFT VALVE - A system for producing hydrocarbons may include a production control device positioned along a production flow line. The production control device may include an enclosure having an interior space and an isolation device disposed in the interior space. The isolation device may divide the interior space into an upper interior space and a lower interior space. The production control device may also include a first flow control device positioned in the upper interior space, and a second flow control device positioned in the upper interior space. The first flow control device may be responsive to a control signal transmitted via a control line from a surface location. The second flow control device may reactively block fluid flow from the lower interior section to the upper interior section when a pressure differential between the upper interior space and the lower interior space falls below a preset value. | 04-30-2015 |
20150114664 | Multi-stage Fracturing with Smart Frack Sleeves While Leaving a Full Flow Bore - Fracking ports are initially obstructed with respective biased sleeves that have an associated release device responsive to a unique signal. The signal can be electronic or magnetic and delivered in a ball or dart that is dropped or pumped past a sensor associated with each release device. Each sensor is responsive to a unique signal. When the signal is received the release device allows the bias to shift the sleeve to open the fracture port and to let a flapper get biased onto an associated seat. The flapper and seat are preferably made from a material that eventually disappears leaving an unobstructed flow path in the passage. The method calls for repeating the process in an uphole direction until the entire zone is fractured. The flapper and seat can dissolve or otherwise disappear with well fluids, thermal effects, or added fluids to the well. | 04-30-2015 |
20150122506 | SYSTEM AND METHOD FOR ACTUATING ISOLATION VALVES IN A SUBTERRANEAN WELL - A method of actuating one or more isolation valves in a well can include conveying a tubular string into the well, the tubular string including a shifting tool, inserting the shifting tool into an isolation valve, thereby opening the isolation valve, and withdrawing the shifting tool from the isolation valve, the isolation valve remaining open after the withdrawing. A completion system for use in a well can include multiple isolation valves, and a shifting tool which opens one isolation valve, allowing full bore inner diameter and not restricting flow, and closes another isolation valve. A shifting tool for actuating multiple isolation valves in a well can include multiple shifting profiles, whereby one shifting profile opens an isolation valve, and another shifting profile closes another isolation valve. | 05-07-2015 |
20150122507 | Rod Annular Blowout Preventer Hydraulic Supply System - A system and method for deploying a rod annular blowout preventer using existing hydraulic pressure is provided. The system connects between an existing hydraulic blowout preventer system and a blowout preventer device installed on the wellhead to provide regulated hydraulic pressure to a rod annular blowout preventer. The system comprises a manifold that receives hydraulic fluid from an existing reservoir and pump and accumulator, routes the fluid through a pressure regulator and into the rod annular blowout preventer. The rod annular blowout preventer includes a diaphragm that expands to close the wellbore during maintenance or during an emergency event. The system provides controlled hydraulic actuation of the rod annular blowout preventer, eliminates manual deployment of the rod annular blowout preventer, and allows the operator to initiate the rod annular blowout preventer away from the wellhead. | 05-07-2015 |
20150136416 | DOWNHOLE APPARATUS - Downhole apparatus comprises first and second tools for location in a tubing string. The first tool has a first seat of a first diameter and the second tool has a second seat of a second diameter larger than the first diameter. First and second activating devices are provided for use in activating the respective first and second tools. The first activating device includes a first activating profile having an extended diameter larger than the first diameter and smaller than the second diameter and a retracted diameter smaller than the first diameter. The second activating device includes a second activating profile having an extended diameter larger than the second diameter and a retracted diameter smaller than the first diameter. | 05-21-2015 |
20150144352 | CHEMICAL INJECTION MANDREL PRESSURE SHUT OFF DEVICE - Disclosed herein is a shut off system for a hydrocarbon recovery mandrel comprising an inline valve assembly comprising a nipple comprising a chemical flow line; the chemical flow line being operative to transfer fluids from outside the wellbore to a mandrel channel; where the mandrel channel is disposed in the mandrel; a valve assembly comprising a cylinder and a piston shaft; where the cylinder contacts the chemical flow line; where the piston shaft reciprocates in the cylinder in response to opposing applied pressures; where the piston shaft contacts a sealing object that is operative to facilitate or to prevent fluid flow from the chemical flow line to the mandrel channel; where the cylinder comprises a port that provides fluid communication from the cylinder to the mandrel channel; and an actuating assembly; where the actuating assembly is operative to displace the piston shaft in the cylinder to prevent fluid communication between the chemical flow line and the mandrel channel. | 05-28-2015 |
20150300107 | Variable Length Fill Up Tool and Valve - A fill up tool has an adjustable length to selectively lengthen the fill up a tool or retract to be positioned completely above the elevator so that elevator movement will not interfere with the fill up tool. The seal is fixed to the tool so that the load caused by the pressurized seal does not have to be balanced by the operating force of the piston. A full open valve is operated when the tool is extended to fill up or take flow back. | 10-22-2015 |
20150300109 | SYSTEM AND METHOD FOR MANAGING DRILLING FLUID - Present embodiments are directed to a drilling fluid management device. A containment structure of the drilling fluid management device is capable of engaging and at least partially creating a seal with a drillpipe element or drillpipe handling equipment. Further, a suction port structure of the drilling fluid management device extends from the containment structure and includes an opening into the containment structure, wherein the suction port structure is designed to couple with a drilling fluid transport feature. | 10-22-2015 |
20150308224 | CHEMICALLY TARGETED CONTROL OF DOWNHOLE FLOW CONTROL DEVICES - Systems and methods using enhanced flow control devices are described. The flow control devices can be selectively closed completely or have its effective flow area reduced to restrict production (or injection) by use of a chemical trigger mechanism. In addition, some of the systems described herein deploy specific targeted chemical tracers, dissolvable in the unwanted production fluid (e.g. water or gas). These chemical tracers once dissolved will enter the production stream and be identified at the surface. The identification will determine which segment of the completion is producing the unwanted fluid. According to some embodiments, an appropriate chemical trigger is placed, for example, by pumping down through the tubing and utilizing intelligent completion valve to place the chemical, or by spotting with coiled tubing and bullhead to the formation, or by other methods of chemical placement. The chemical trigger will only trigger the active chemical in the appropriate flow control device. This chemical will then change state—dissolve, create thermal reaction, create a pressure swell or expand—which in turn allows a mechanical device to shift position such that a valve in the flow control device closes, or reduces its flow by restricting the flow area by swelling/expansion of the active chemical. | 10-29-2015 |
20150308226 | Apparatus For Controlling Fluid Flow In Or Into A Well and Method Of Using Same - The present invention discloses an apparatus and a method for controlling fluid flow in or into a well. The apparatus includes at least one housing ( | 10-29-2015 |
20150308228 | Sliding Sleeve Well Tool with Metal-to-Metal Seal - A sliding sleeve well device has a first sliding sleeve received in a second sliding sleeve. A polymer seal having a polymer sealing surface is between and in sealing contact with the sliding sleeves. A metal-to-metal seal is between the sliding sleeves and actuable into sealing contact with the first and second sliding sleeves. | 10-29-2015 |
20150322725 | HYDRAULICALLY LOCKED TOOL - A tool with a hydraulic lock mechanism may include a body defining a flow tube and a chamber. An expandable member may be coupled to the body. A first valve may be located between the chamber and the flow tube to control the flow of fluid into the chamber from the flow tube. A second valve may located between the chamber and an external environment to control the flow of fluid from the chamber into the external environment. The first and second valves may trap fluid within the chamber to maintain the tool in an active position. A piston may be connected to the expandable member and may move in response to pressurization of the chamber. At one position, the piston may cause the expandable member to extend to a radially outward position. At another position, the piston may cause the expandable member to retract to a radially inward position. | 11-12-2015 |
20150322747 | BOOST ASSISTED FORCE BALANCING SETTING TOOL - A setting tool is provided for positioning in a subterranean wellbore. The tool carries a pre-charged, pressurized chamber, preferably filled with inert gas. A force-balanced piston assembly, with the piston chamber initially at atmospheric pressure, is in selective fluid communication with the pressurized chamber. A release mechanism, rupture disc, or valve is selectively operable to open the pressurized chamber and allow fluid flow to the piston chamber. The pressurized gas drives the piston which, in turn, drives a power rod for setting a downhole tool. Preferably a flow restrictor is incorporated in the gas flow path to meter the fluid and control the setting speed. In a preferred embodiment, the pressurized chamber is opened by rupturing a disc. A pyrotechnic device, which qualifies as a non-explosive device and is triggered by a low-powered battery, drives a piercing member into and through the rupture disc. | 11-12-2015 |
20150330182 | Hydraulic Activation of Mechanically Operated Bottom Hole Assembly Tool - A method of hydraulically activating a mechanically operated wellbore tool in a bottom hole assembly includes: holding moveable elements of the wellbore tool in an unactivated position using a shear pin; inserting one or more drop balls into a drilling fluid; and flowing the drilling fluid with the drop balls to a flow orifice located in or below the wellbore tool. The flow orifice is at least partially plugged with the drop balls to restrict fluid flow and correspondingly increases the hydraulic pressure of the drilling fluid. The hydraulic pressure is increased to a point beyond the rating of the shear pin, thereby causing the shear pin to shear and allowing the moveable elements of the tool to move to an activated position. | 11-19-2015 |
20150330186 | CLOSURE DEVICE FOR A SURGE PRESSURE REDUCTION TOOL - A closure device is provided to close a surge pressure reduction tool disposed in a deviated wellbore. The closure device may include a tubular body, a fin, and a rupture disk disposed in the tubular body. The closure device may be pumped downhole to close the tool. | 11-19-2015 |
20150337623 | Degradable Fluid Loss and Pressure Barrier for Subterranean Use - A tubular segment that has openings that are initially closed so that pressure can be conducted through the segment has the ability to open the segments by making a degradable material unblock the openings to facilitate another completion operation or production. Some applications include a slotted liner with a screen where an intermediate layer of a controlled electrolytic material initially allows the structure to conduct pressure and then after degradation allows access through the screen and the slotted liner for production. Other variations can be simply using slotted liner where the slots are closed for running it to allow circulation and then opened for production or other completion steps. The transformation can take place over time using available well fluids or it can take place with induced well conditions at the location that are initiated from the surface or locally at the location. | 11-26-2015 |
20150337626 | ADJUSTABLE AUTONOMOUS INFLOW CONTROL DEVICES - Disclosed are wellbore flow control devices that allow on-site field adjustments to flow characteristics. One disclosed well system includes a base pipe defining one or more flow ports and an interior, a first end ring and a second end ring each arranged about the base pipe, the second end ring being axially-offset from the first end ring such that a fluid compartment is defined therebetween, an autonomous inflow control device (AICD) arranged within the fluid compartment and having at least one fluid inlet and an outlet in fluid communication with the one or more flow ports, and a sleeve removably coupled to the first and second end rings and configured to be removed to provide access to the fluid compartment and the AICD in order to make on-site fluid flow adjustments to the AICD. | 11-26-2015 |
20150354307 | Hydraulic Pipe String Vibrator For Reducing Well Bore Friction - A friction reduction apparatus (FRA) positioned onto a pipe string comprises a tubular housing, upper and lower mandrels having variously configured fluid flow passages and ports, a valve and a shifter. Fluid travelling through the apparatus causes the valve and shifter to reciprocate, repeatedly opening and closing flow passages. Each of these cycles creates a pulse in the fluid column creating vibrations that reduce friction in the pipe string. The FRA can be used in conjunction with a ball or dart activated tool positioned downhole from the FRA. | 12-10-2015 |
20150354320 | SYSTEMS AND METHODS FOR ACTIVATING A DOWNHOLE TOOL - A downhole tool may include a body with a flow channel therethrough. The flow channel may be an outer flow channel that is radially outward relative to an inner flow channel and/or a rod. The rod or inner flow channel may act as a valve to allow flow within the outer flow channel. A plunger may be positioned within the body and acted upon by fluid in the inner flow channel or the rod. The plunger may move from a first position that restricts fluid flow from the outer flow channel to a chamber in the body to a second position that allows fluid flow from the outer flow channel to the chamber in the body at least partially in response to fluid flowing through the inner flow channel. An expandable member, such as a cutting tool or isolation tool, may be movably coupled to the body. | 12-10-2015 |
20150361746 | TWO PHASE MUD FLOW USAGE WITH DUAL-STRING DRILLING SYSTEM - Systems and methods for controlling fluid contact with a borehole wall during drilling operations include introducing an outer pipe into a borehole and positioning an inner pipe within the outer pipe, wherein the inner pipe may be axially disposed within the outer pipe. The annular isolator may be disposed within an annulus between the outer pipe and the borehole wall. The method may include placing a control fluid in the annulus between the outer pipe and the borehole wall. The method may further include circulating a drilling fluid to a drill bit using the inner pipe and the annulus between the inner pipe and the outer pipe. The drilling fluid may be separated from the control fluid by an annular isolator. | 12-17-2015 |
20150361747 | MULTISTAGE WELL SYSTEM AND TECHNIQUE - A technique that is usable with a well includes using untethered objects to operate a first plurality of tool of the string and using a string-conveyed tool to operate a second plurality of tools of the string. | 12-17-2015 |
20150361762 | CONFIGURABLE AND EXPANDABLE FLUID METERING SYSTEM - A configurable metering cartridge includes a body having a tortuous pathway between an inlet and an outlet, and the tortuous pathway includes a plurality of restrictors. At least one valve is in fluid communication with the tortuous pathway and is selectively positionable to allow or prevent fluid flow through one or more of the plurality of restrictors. | 12-17-2015 |
20150369022 | Multi-Lateral Well System - A production system for use in a wellbore having a main bore with an axis, a lower lateral bore, and an upper lateral bore, includes a hollow whipstock with a central bore. The hollow whipstock is secured to the main bore between the lower lateral bore and the upper lateral bore. A sleeve assembly has a moveable inner sleeve with an outer diameter smaller than an inner diameter of the central bore of the hollow whipstock, and a moveable outer sleeve with an outer diameter larger than the inner diameter of the central bore of the hollow whipstock. A flow control valve is located in the main bore above the upper lateral bore. The flow control valve has an inner tubing member in selective fluid communication with the lower lateral bore and an annular conduit in selective fluid communication with the upper lateral bore. | 12-24-2015 |
20150376958 | PRESSURE RESPONSIVE DOWNHOLE TOOL HAVING AN ADJUSTABLE SHEAR THREAD RETAINING MECHANISM AND RELATED METHODS - A pressure responsive downhole tool comprises a threaded shearable retaining mechanism which performs the tension sleeve or shear pin function. The threaded shearable retaining mechanism comprises a pin and box thread that shears upon application of a predetermined pressure which may be adjusted based upon the amount of thread engagement. The pin thread may comprise indicators to indicate which thread engagement corresponds to what shear value. A keystone thread design may be utilized such that the thread would be retained along the threaded connection and not become lost in the well. Thus, the present invention allows for each pressure responsive tool to be custom tailored for a specific job. | 12-31-2015 |
20150376979 | STRADDLE PACKER SYSTEM - A straddle packer system includes an upper seal member, a lower seal member, an upper equalizing valve configured to equalize pressure across the upper seal member, a lower equalizing valve configured to equalize pressure across the lower seal member, and an anchor. The upper and lower seal members do not move when actuating the upper and lower equalizing valves, respectively, into an unloading position to equalize the pressure across the upper and lower seal members. | 12-31-2015 |
20150376982 | PRESSURE DEPENDENT WELLBORE LOCK ACTUATOR MECHANISM - A tool string having a pressure dependent mandrel and actuator assembly can operate at the annulus pressure within a wellbore to lock the mandrel actuator assembly and prevent further motion of the mandrel within the tool string as the tool string is moved upward or downward in the wellbore. The tool string can further include a valve connected to the actuator assembly, where the valve can be in an open configuration within the wellbore due to the annulus pressure and related motion of the mandrel, and then be locked in an open configuration regardless of the annulus pressure as the tool string is moved upward or downward in the wellbore. | 12-31-2015 |
20150376986 | Fusible, Resettable Lock Open Device - A locking apparatus for attaching to an end of a valve actuator includes an assembly body, the assembly body releasably securable to a valve actuator. The assembly body has a stem bore for receiving an actuator stem, and a plunger orifice through a sidewall of the assembly body. An immobilizer assembly has a plunger extending through the plunger orifice, and biased radially outward and moveable between a radially inner position where the immobilizer assembly extends over the stem bore, and a radially outer position where an inner end of the immobilizer assembly is radially outward of the stem bore. A segmented housing circumscribes the assembly body and is moveable between a first position where the plunger is in the radially outer position and a second position where the plunger is in the radially inner position. A fusible band selectively retains the segmented housing in engagement with the immobilizer assembly. | 12-31-2015 |
20150376990 | EROSION MODULES FOR SAND SCREEN ASSEMBLIES - Disclosed are sand control screen assemblies that include one or more erosion-resistant modules. One sand control screen assembly includes a base pipe defining one or more flow ports that provide fluid communication into an interior of the base pipe, a well screen arranged about the base pipe and in fluid communication with the one or more flow ports via a flow path extending between the well screen and the one or more flow ports, and an erosion module arranged within the flow path and comprising an erosion-resistant material, the erosion-resistant material being configured to filter a fluid prior to the fluid entering the interior of the base pipe. | 12-31-2015 |
20160003004 | PRESSURE EQUALIZATION FOR DUAL SEAT BALL VALVE - A ball valve comprising a housing comprising a fluid passage, a first seat surface, a second seat surface, and a ball rotatably movable within the housing between an open position allowing flow through the fluid passage of the housing and a closed position preventing flow through the fluid passage of the housing, wherein the ball contacts the first seat surface and the second seat surface to form one or more seals within the ball valve, wherein the ball comprises a fluid passage and a fluid path, wherein the fluid path fluidly connects a space between the first seat surface and the second seat surface with the fluid passage of the housing, with the fluid passage of the ball, or both, when the ball is in the open position. | 01-07-2016 |
20160010410 | BOREHOLE CLAMPING SYSTEMS AND METHODS OF OPERATING THE SAME | 01-14-2016 |
20160010427 | ELECTRICALLY OPERATED VALVE AND METHOD THEREOF | 01-14-2016 |
20160010432 | Casing Joint Assembly for Producing an Annulus Gas Cap | 01-14-2016 |
20160024878 | System and Method for Accessing a Well - A system and method for accessing a well, in certain embodiments, includes a production tree, a cap, and a spool including a longitudinal bore configured to receive a tubing hanger. The tubing hanger includes a longitudinal bore configured to transfer product between the spool and the production tree. At least one adjustable fluid barrier is included in the tubing hanger and/or the cap. The adjustable fluid barrier can be used to open and close the longitudinal passage and allow access through the tubing hanger and/or the cap. | 01-28-2016 |
20160024886 | PRESSURE-OPERATED DIMPLE LOCKOUT TOOL - The disclosure describes a lockout tool including a cam housing configured to fit within a flow tube of a safety valve that is coupled to production tubing and has a longitudinal up-down axis. The lockout tool further includes a piston disposed within the cam housing and configured to move within the cam housing parallel to the longitudinal up-down axis and form a plurality of dimples in the flow tube upon provision within the production tubing of a pressurized fluid. | 01-28-2016 |
20160032685 | Dual Isolation Well Assembly - A working string is used to actuate a first valve of a completion string in a well to seal a float shoe of the completion string from a remainder of the completion string. The working string is also used to actuate a second valve of the completion string to seal the center bore of the completion string. Actuating the first valve and the second valve is performed without withdrawing the working string from the well. In certain instances, the working string is a washpipe that includes a shifting profile for each valve. | 02-04-2016 |
20160032697 | Indexing Well Bore Tool and Method for Using Indexed Well Bore Tools - Downhole tools that have a housing and an actuation mechanism. The actuation mechanism is adapted to index in response to one or more balls being deployed into said tool and thereafter to actuate in response to another said ball being deployed into said tool. The indexing balls and the actuation ball are substantially identical. The actuation mechanism may comprise a member adapted for indexing from an initial position sequentially through one or more intermediate positions to a terminal position where the indexed member is mounted in an annular space between an outer wall and an inner wall. The tool may comprise a central conduit which is substantially uniform internal diameter substantially free of profiles. Methods are provided that include deploying an ancillary tool through the tool which has not been actuated or drilled out. | 02-04-2016 |
20160040515 | Downhole Sand Control Assembly with Flow Control, and Method for Completing a Wellbore - A method for completing a wellbore in a subsurface formation includes providing a first base pipe and a second base pipe. Each base pipe comprises a tubular body forming a primary flow path. Each base pipe has transport conduits along an outer diameter for transporting fluids as a secondary flow path. The method also includes connecting the base pipes using a coupling assembly. The coupling assembly has a manifold, and a flow port adjacent the manifold that places the primary flow path in fluid communication with the secondary flow path. The method also includes running the base pipes into the wellbore, and then causing fluid to travel between the primary and secondary flow paths. A sand screen assembly is also provided that allows for control of fluid between primary and secondary flow paths. | 02-11-2016 |
20160047201 | FLAPPER VALVE TOOL - The present invention is related to a downhole tool having a flapper valve assembly for controlling the backflow of fluid into a tubing string. The downhole tool includes a first sleeve slidably disposable within at least a portion of the flapper valve assembly and the downhole tool. The downhole tool can also include a second sleeve slidably disposed within the downhole tool. The present invention is also related to a method of using the downhole tool. The method includes the step of positioning the downhole tool in a wellbore. Once the downhole tool is positioned in the wellbore, the first sleeve is shifted to interact with the flapper valve assembly. | 02-18-2016 |
20160053573 | DOWNHOLE TOOL CONSISTENT FLUID CONTROL - A downhole apparatus for use in a wellbore includes a housing having at least one passage or cavity capable of receiving a fluid. The downhole apparatus further includes an orifice in fluid communication with the passage or cavity. A viscosity-altering member is positioned in proximity to the orifice and is capable of being activated to change the viscosity of the fluid and thus a rate at which the fluid is able to pass through the orifice. | 02-25-2016 |
20160053578 | Shear Valve System And Methodology - A technique facilitates control of fluid flows in a wide variety of applications and environments, including downhole well environments. The technique utilizes a valve system which may include a shear seal valve for controlling fluid flows. The valve system utilizes port arrangements, components for energizing shear seals between mating components, and/or actuating components with improved degrees of freedom. The components facilitate repeatable and consistent actuation and operation of the valve system in the wide variety of applications and environments. | 02-25-2016 |
20160061004 | AUTONOMOUS FLOW CONTROL SYSTEM AND METHODOLOGY - A technique facilitates regulation of flow through a flow control device to improve a well operation, such as a production operation. The technique utilizes a flow control device which has a valve positioned in a housing for movement between flow positions. The different flow positions allow different levels of flow through a primary flow port. At least one flow regulation element, e.g. a Venturi based flow regulation element, is used in a control line in communication with the valve to establish a differential pressure acting on the valve. The differential pressure is a function of fluid properties and is used to autonomously actuate the flow control device to an improved flow position. | 03-03-2016 |
20160061010 | APPARATUS AND METHOD FOR DEPLOYING AN ELECTRICALLY OPERATED PUMP IN A WELLBORE - An electrical submersible pump system includes an electric motor operably coupled to a fluid pump which includes first and second fluid ports. The first and second ports are selectively operable as a fluid intake and a fluid discharge of the fluid pump with reversal of a direction of rotation of the fluid pump. Valves in the system are controllable to selectively direct fluid discharge of the fluid pump to an inflation volume of the inflatable packer and toward the surface in a wellbore tubing. The valves are further controllable to vent pressure in the inflation volume to deflate the packer. | 03-03-2016 |
20160069148 | INTERNAL LOCKDOWN SNUBBING PLUG - A system, including a plug, including one or more fluid pathways extending between upstream and downstream sides of the plug, and an internal lock positionable in an unlocked position and a locked position, wherein the internal lock is resiliently biased to the locked position upon release from the unlocked position, wherein the locked position is configured to internally secure the plug within a wellhead component. | 03-10-2016 |
20160069154 | PRESSURE RELEASE ASSEMBLY FOR CASING OF DRILLING RIG - An apparatus is for a drill rig platform configured to be operative with a casing system having a check valve fixedly positioned in a casing joint. The apparatus includes a casing pressure relief assembly fixedly positionable relative to the check valve positioned in the casing system. The casing pressure relief assembly is configured to actuate the check valve in such a way that the check valve actuatably releases internal pressure from the casing system. In this manner, the internal fluid pressure of the pressurized fluid trapped in the casing system is released once the casing pressure relief assembly actuates the check valve. | 03-10-2016 |
20160076337 | TUBULAR ASSEMBLY INCLUDING A SLIDING SLEEVE HAVING A DEGRADABLE LOCKING ELEMENT - A tubular assembly includes a turbular member having at least one opening, and a sleeve slidingly mounted relative to the tubular member. The sleeve is shiftable between an open configuration in which the at least one opening is exposed and a closed configuration in which the at least one opening is covered by the sleeve. A degradable locking member is mounted relative to one of the turbular and the sleeve. The degradable locking member selectively retains the sleeve in the open configuration. The degradable locking member is configured to degrade when exposed to a downhole fluid allowing the sleeve to be shifted to the closed configuration. | 03-17-2016 |
20160076338 | DOWNHOLE ADJUSTABLE STEAM INJECTION MANDREL - A steam injection mandrel comprises a housing generally defining an axial flow bore and comprising one or more ports, an inner mandrel disposed within the housing, and a slot formed in the inner mandrel. The slot transitions at least three hundred sixty degrees about the longitudinal axis of the housing, and the steam injection mandrel is configured to provide fluid communication between the axial flow bore and the one or more ports through the slot. | 03-17-2016 |
20160084031 | MULTI-STAGE BLOWOUT PREVENTER AND METHOD OF USING SAME - A blowout preventer includes a housing, a ram block carrier which moves within the housing, and one or more ram blocks configured to be placed within the ram block carrier. The ram block carrier may include an opening, an upper shelf within the opening configured to hold an upper ram block, and a lower shelf within the opening configured to hold a lower ram block. The housing may include a central bore, cavities on both sides of the bore, and openings which allow ram blocks to access a pipe within the bore. | 03-24-2016 |
20160090818 | REMOTELY OPERATED ISOLATION VALVE - A shifting tool for use in a wellbore includes a tubular housing having a bore formed therethrough; a tubular mandrel disposed in the housing and longitudinally movable relative thereto; and an engagement member moveable relative to the housing between an extended position, a released position, and a retracted position, wherein: the engagement member is movable from the retracted position to the extended position in response to movement of the mandrel relative to the housing, and the engagement member is further movable from the extended position to the released position in response to movement of the mandrel relative to the housing. | 03-31-2016 |
20160115766 | Transmitting Power To Gas Lift Valve Assemblies In A Wellbore - A gas lift valve system for a wellbore within a subterranean formation can include a power source that generates power, and a delivery system disposed within the wellbore and electrically coupled to the power source, where the delivery system delivers the power generated by the power source. The system can also include at least one gas lift valve assembly disposed within the wellbore and electrically coupled to the delivery system, where the at least one gas lift valve assembly receives the power from the delivery system, where at least one valve, when in a position other than a fully closed position, allows a control medium to flow from an inlet channel to an outlet channel, where the outlet channel empties into the cavity of the delivery system. | 04-28-2016 |
20160115767 | WELL TOOL WITH INDEXING DEVICE - A well tool can include an operator device with an operator profile and at least two routes, and an indexing device with a cam and a cam follower including a structure. The structure engages the routes in succession in response to relative displacement between the operator profile and cam. A method can include causing relative displacement between an operator device and an indexing device in one direction, thereby causing a structure to disengage from one route of the operator device and displace an initial distance between two routes in response to engagement between the cam follower and a cam, and causing relative displacement between the operator and indexing devices in an opposite direction, thereby causing the structure to displace a remaining distance between the routes in response to engagement between the cam follower and an operator profile of the operator device, and to displace along the second route. | 04-28-2016 |
20160123104 | DOWNHOLE TOOL WITH ANTI-EXTRUSION DEVICE - A downhole tool including a mandrel, a sealing element, a cone, a plurality of fingers, and a slip. The sealing element may be positioned around the mandrel. The sealing element is configured to expand radially-outward from a contracted state to an expanded state. The cone may be positioned around the mandrel and proximate to the sealing element. The plurality of fingers may be positioned at least partially around the mandrel. The fingers may be axially-aligned with at least a portion of the sealing element. The fingers are coupled to a base and configured to break away from the base at a weak point when the sealing element expands into the expanded state. The slip may be positioned around the mandrel and proximate to the cone. The slip may include a tapered inner surface configured to slide along a tapered outer surface of the cone. | 05-05-2016 |
20160123114 | Straddle Packer Equalization and Self Recovery Module - A packer that may be used to isolate a portion of a wellbore and a method of using the packer within the wellbore. The packer includes a body with a central bore, an upper sealing element, a lower sealing element, treatment ports, upper equalization ports, and a sleeve positioned within the central bore. The sleeve may be moved to selectively permit fluid communication through the treatment ports and the upper equalization ports. The packer may include lower equalization ports and the sleeve may be moved to also selectively permit fluid communication through the lower equalization ports. The sleeve may include a closed end and an inner wall that separates a secondary cavity from a main cavity. The sleeve includes a plurality of openings that either permits or inhibits fluid communication through the ports of the packer depending on the position of the sleeve within the central bore of the packer. | 05-05-2016 |
20160130896 | HIGH COLLAPSE PRESSURE CHAMBER AND METHOD FOR DOWNHOLE TOOL ACTUATION - A setting tool for performing a wellbore operation includes a mandrel, a cylinder slidably engaged with the mandrel, and a variable volume first chamber formed between the mandrel and the cylinder and a containment member having a second chamber adjacent to the first chamber. The setting tool also includes a support fluid disposed in the first chamber, a slidable support axially and circumferentially distributed inside the first chamber, and a valve disposed between the first chamber and the second chamber. The valve is configured to flow the support fluid from the first chamber to the second chamber. The support fluid and the slidable support support the cylinder against a downhole pressure. The setting tool is conveyed into the wellbore and connected to a consumer. The setting tool is actuated to set the consumer. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the general subject matter of the technical disclosure. | 05-12-2016 |
20160145970 | CASING CHECK VALVE - A casing check valve for providing isolation of an open hole section of a wellbore from a cased hole section of the wellbore is described herein. The casing check valve can include a housing and an actuating sleeve movably disposed within the housing between an actuated position and a normal position. The housing can include a housing body, at least one actuating sleeve coupling feature, a flapper assembly, a flapper seat, and at least one casing pipe coupling feature. The actuating sleeve can include an actuating sleeve body, at least one housing coupling feature, at least one operating tool coupling feature, and a distal extension. | 05-26-2016 |
20160153262 | HYDRAULIC FLOW RESTRICTION TUBE TIME DELAY SYSTEM AND METHOD | 06-02-2016 |
20160153263 | SAND CONTROL ASSEMBLIES INCLUDING FLOW RATE REGULATORS | 06-02-2016 |
20160177668 | FLAPPER VALVE TOOL | 06-23-2016 |
20160177671 | Well Barrier | 06-23-2016 |
20160201431 | FLOW CONTROL DEVICE AND METHOD | 07-14-2016 |
20160201811 | EXTREME SERVICE PLUG VALVE | 07-14-2016 |
20160251935 | DELIVERING AN AGENT INTO A WELL USING AN UNTETHERED OBJECT | 09-01-2016 |
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20220136367 | DOWNHOLE INFLOW PRODUCTION RESTRICTION DEVICE - The present invention relates to a downhole inflow production restriction device for mounting in an opening in a well tubular metal structure arranged in a wellbore, the downhole inflow production restriction device comprising a device opening, and a brine dissolvable element configured to prevent flow from within the well tubular metal structure through the device opening to an outside of the well tubular metal structure before being at least partly dissolved in brine, wherein the brine dissolvable element is at least partly made of a magnesium alloy. The present invention also relates to a downhole completion system and to a completion method. | 05-05-2022 |