| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166105000 | WITH EDUCTION PUMP OR PLUNGER | 88 |
| 20080202743 | Downhole flow reversal apparatus - A water reinjection arrangement for a coal bed methane well to minimize water disposal problems at the well surface. Water is withdrawn by a motor driven pump from an upper coal seam through openings in the upper portion of the well casing. A flow reversing head is provided within the well casing and into which the withdrawn water is directed. The water flow direction is reversed by about 180° and is conveyed within the well casing through tubular conduits to a downstream flow collector and into a downflow pipe, to be injected into a lower seam through openings in a lower portion of the well casing wall. A sealing arrangement is provided within the well casing to seal off the upper coal seam from the lower seam. | 08-28-2008 |
| 20080283236 | Well plunger and plunger seal for a plunger lift pumping system - A plunger for a plunger lift system of an oil and/or gas well for use in lifting a fluid out of a well bore. The plunger includes a generally cylindrical elongated plunger body with an upper and a lower end, wherein the lower end includes a thermoset tubular seal member, preferably a composite seal member adapted to slidingly contact the well bore and aid in the extraction of fluids from the well during plunger lift. | 11-20-2008 |
| 20080314581 | Unlimited stroke drive oil well pumping system - An unlimited stroke drive method for pumping fluid from an oil well in which the well has a tubing string extending from the earth's surface down to a fluid producing formation. The method includes the steps of positioning a pump barrel within the tubing, an upper end of the pump barrel having communication through a standing valve with the interior of the tubing string, vertically reciprocating a length of flexible cable within the tubing string to vertically reciprocate a plunger within the pump barrel to allow a lower portion to quickly fill with fluid from the producing formation and then to a downward position in which fluid within the pump barrel lower portion is transferred through a traveling valve to an area within the pump barrel above the plunger to move formation fluid from within the pump barrel to the interior of the tubing and thence to the earth's surface. | 12-25-2008 |
| 20090025926 | Field Joint for a Downhole Tool - A field joint for connecting a plurality of downhole tool modules is disclosed. The modules include a housing and an electrical line. A bulkhead is coupled to a first module that includes a first conduit aperture for receiving an electrical connector assembly. The first electrical connector assembly is releasably coupled to the exterior portion of the first module and includes a first connector having a first end adapted for electrical coupling to an electrical line. A connector block is coupled to the second module that includes a second conduit aperture positioned to substantially face the first conduit aperture when the first and second modules are joined. A second electrical connector is disposed in the second conduit aperture and is electrically coupled to an electrical line such that an electrical contact is established with a second end of the first connector when the first and second modules are joined. | 01-29-2009 |
| 20090159262 | ELECTRIC SUBMERSIBLE PUMP (ESP) WITH RECIRCULATION CAPABILITY - A submersible pumping system for use downhole, wherein the system includes a first pump, a second pump, a recirculation coupling between the first and second pumps, and a recirculation line for directing cooling flow across the pump motor. The pumps and coupling are independent modular items connected together. Optionally, a multi-stage pump may be retrofitted with the coupling for creating a cooling flow. | 06-25-2009 |
| 20090166025 | Collection and Lift Modules for use in a Wellbore - A system for a gas-producing wellbore comprises a collection module disposed about a gas-production conduit in the wellbore, the collection module comprising a collection chamber disposed about the gas-production conduit. The system further comprises one or more lift modules for applying a differential between pressure of gas in the gas-production conduit and pressure of the wellbore. | 07-02-2009 |
| 20090301705 | Universal Pump Holddown System - A pump seating nipple is provided for engagement with a downhole pump in order to seal and anchor the downhole pump relative to the pump seating nipple. The pump seating nipple includes a nipple sealing component for coupling with the downhole pump to provide a seal device, a nipple axial force anchoring component for coupling with the downhole pump to provide an axial force anchor device, and a nipple rotational force anchoring component for coupling with the downhole pump to provide a rotational force anchor device. | 12-10-2009 |
| 20090308591 | Mover stabilizing and stator cooling arrangement of a 3-phase linear motor of a submersible oil pump - A mover stabilizing and stator cooling arrangement includes an upper sleeve surrounding the mover of the linear motor, a lower sleeve, a thermoconducting sleeve surrounding the stator and axially connected between the upper sleeve and the lower sleeve, a thermal grease filled in the space defined between the upper sleeve and the mover and the space defined between the thermoconducting sleeve and the stator and the space defined between the lower sleeve and the outer tube for quick dissipation of waste heat, a stabilizer ring set between the upper sleeve and the mover to stabilize axial movement of the mover, and a piston and multiple one-way valve sets mounted in the space between the lower sleeve and the outer tube for allowing adjustment of the volume in the thermoconducting sleeve subject expansion/contraction of the thermal grease during temperature change. | 12-17-2009 |
| 20100038070 | Top suction fluid end - A positive displacement wellbore servicing pump having a power end and a fluid end is disclosed. The fluid end has a main chamber and a suction bore in fluid connection with the main chamber and the suction bore has a suction central axis vector. A discharge bore is in fluid connection with the main chamber and the discharge bore has a discharge central axis vector. A portion of the suction central axis vector is vertically higher than any portion of the discharge central axis vector. A method of providing a wellbore servicing fluid to a wellbore is also disclosed. A method of providing a wellbore servicing fluid to a fluid end of a positive displacement pump is also disclosed. | 02-18-2010 |
| 20100038071 | Multi-Stage Spring For Use With Artificial Lift Plungers - A multi-stage spring system, for use with an artificial lift plunger within an oil or natural gas well includes a first stage adapted for absorbing the initial impact of the artificial lift plunger, and for decreasing the momentum of the plunger, the first stage having a spring with a first spring rate. The spring system also includes a second stage in contact with the first stage, adapted for absorbing the remaining momentum of the plunger, the second stage having a spring with second spring rate greater than the first spring rate. | 02-18-2010 |
| 20100044026 | OIL WELL PUMP - A pump system for use in with a downhole pipe string has a pump comprising at least one cylinder with at least one piston inside the cylinder, the movement of the piston causing fluid to be drawn into the pump through a pump inlet before being pushed out through a pump outlet. The pump is housed in a tube having a cammed surface formed by internal wall of the tube, and the piston has a cam follower such that rotation of the piston relative to the tube causes the piston to move relative to the cylinder Further, a pump system is shown which has two or more such pumps arranged along the downhole pipe string, the pump outlets feeding into a common manifold. The strokes of the piston or pistons of one pump may be out of step with the strokes of the piston or pistons of another pump such that the outlet stream is more uniform. | 02-25-2010 |
| 20100155051 | ELECTRIC SUBMERSIBLE PUMPING SYSTEM WITH GAS VENT - A technique is provided for pumping fluids from a wellbore. An electric submersible pumping system is deployed in a wellbore on a tubing. Free gas can potentially accumulate around the electric submersible pumping system, but a gas vent is positioned to remove free gas. | 06-24-2010 |
| 20100206549 | Overpressure Protection in Gas Well Dewatering Systems - Configurations for gas well dewatering systems having overpressure protection to protect a pump and its peripheral equipment from damage due to overpressure are provided. | 08-19-2010 |
| 20100300679 | Hydraulic Oilfield Lift Pump - A vertically orientated hydraulically driven oilfield lift pump unit having a simplified hydraulic system. The system uses a pair of single acting hydraulic cylinders in tandem with a pair of double acting hydraulic cylinders interacting with hydraulic accumulators to provide an energy efficient, robust hydraulic system design with a minimum number of components. | 12-02-2010 |
| 20110024104 | THREE PHASE ELECTRICAL WET CONNECTOR FOR A DOWNHOLE TOOL - An electrical connector for a downhole tool the connector including a static connector part coupled to a production tubing, the static connector part having a static connector base, and a plurality of connector members disposed on the static connector base and extending axially upward therefrom, a moveable connector part configured to engage the static connector part, the moveable connector part including, a moveable connector base, a plurality of corresponding connector members disposed on the moveable connector base and extending axially downward therefrom and configured to engaged the plurality of connector members disposed on the static connector base, wherein the plurality of connector members are clustered on the static connector base and the plurality of corresponding connector members are clustered on the moveable connector base is disclosed, and at least one fluid flow path formed radially outward of the clustered and engaged connector members. | 02-03-2011 |
| 20120073800 | PUMP SHAFT BEARING SUPPORT - A device and method of tailoring a pump lift capacity of a pump for an electrical submersible pumping unit (ESP). The pump unit of the ESP has a plurality of stages, each made up of an impeller and a diffuser. The ESP has a pump lift capacity, which is ideally matched with well capacity. The well capacity is, therefore, the target lift capacity. To facilitate matching of pump lift capacity and well capacity, one or more stages of the pump unit may be replaced with a spacer assembly to reduce pump lift capacity by a desired amount. The spacer assembly may include a shaft bearing support made up of an outer ring and an inner ring, wherein the outer and inner ring are connected by webs, which allow oil to flow through the support. The spacer assembly may be axially located on the pump shaft via compression tubes. | 03-29-2012 |
| 20120125599 | Artificial Simultaneous Production And Maintenance System Assisted By Mechanical Pumping With Flexible Tubing For Fluid Extraction - An artificial simultaneous production and maintenance system assisted by mechanical pumping for fluid extraction, comprising: a surface assembly including a sub-base, a hydraulic drive head, a stuffing box, an O-ring preventer, a wedge preventer and a connection and splicing means; from the surface assembly a production tubing extends vertically downwards inside the well bore; a casing; a flexible tubing located inside the production tubing all along its length, being the casing, the production tubing and the flexible tubing concentrically one inside the other; and a pump assembly including a connector, a check valve, cleaning tool and a plunder pump. The system allows assisted production by mechanical pumping for fluid extraction and maintenance by simultaneous pumping of chemicals to the well to modify physical properties of the fluid to be extracted and clean organic and inorganic material buildup within the well. | 05-24-2012 |
| 20120132414 | Automatic Bypass for ESP Pump Suction Deployed in a PBR in Tubing - A subterranean pump is delivered on coiled tubing with power and control cables running inside. The pump suction has a tubular inlet that seals in a polished bore in the surrounding tubular. A diverter opens a lateral port and closes entry to the pump suction when the pump is not running and the formation pressure is high enough to bring production to the surface. This configuration prevents the pump from turning while the formation pressure allows production to the surface. If the pump is started it reduces pressure ahead of a movable plug to draw it toward the pump against a spring bias. The lateral ports close and an inline flow path opens to allow the pump to draw through the diverter and discharge into the annular space around the coiled tubing on the way to the surface. | 05-31-2012 |
| 20120211220 | TORQUE ABSORBTION ANCHOR SYSTEM AND METHOD TO ASSEMBLE SAME - An electric submersible pump (ESP) torque absorbtion anchor system (TAS) and a method to assemble the same are disclosed. The TAS includes a collar having an uphole end coupled to a production string and a flange formed on an outer diameter of the collar. The TAS also includes a sleeve having a rim extending radially inward from an uphole end of the sleeve. The collar is positioned in a cavity of the sleeve so that oppositely facing shoulders of the collar and the sleeve contact and transfer axial loads between the sleeve and the collar. A spring is positioned in an annulus between the sleeve and the collar and mounts to the collar and the sleeve so that rotational loading of the sleeve relative to the collar transfers to the spring. | 08-23-2012 |
| 20120292011 | CRUDE OIL PRODUCTION EQUIPMENT - A crude oil production equipment includes a submersible pump coupled with a driving shaft, a linear motor, an oil pipe, a well casing, a filter pipe, an outer passage, an inner tube, an upper valve ball, a piston and a lower valve ball. During down stroke of the driving shaft, a suction force is produced to suck crude oil from the well casing into the upper chamber of the inner and the piston forces crude oil out of the lower chamber of the inner tube into the inner passage and then the outlet of the oil pipe. During up stroke of the driving shaft, the piston forces crude oil out of the upper chamber into the lower chamber, and the driving shaft enters the upper chamber and the lower chamber to force crude oil out of the lower chamber out of the oil outlet of the oil pipe. | 11-22-2012 |
| 20120292012 | DESALINATION SUBSURFACE FEEDWATER SUPPLY AND BRINE DISPOSAL - A system is disclosed for supplying water to a desalination plant from a subsurface feedwater supply using one or more slant or horizontally directionally drilled (“HDD”) wells, and for concentrate disposal (e.g., injection of brine). A method is disclosed for constructing a slant or HDD well feedwater supply system for supplying water from a subsurface feedwater supply or to inject concentrate into a subsea aquifer. | 11-22-2012 |
| 20130020069 | Gas Powered Subsurface Pump Drive System - A gas powered subsurface pump drive system for use in driving a subsurface pump positioned downhole a well and connected to completion tubing includes a pressure connected to the wellhead of the well in fluidic communication with the completion tubing. A pneumatic cylinder is supported above the pressure vessel and has a vertically positioned and reciprocal piston rod extending into the pressure vessel and is connected to an intermediate drive member extends through the production tubing and is connected to a piston rod the subsurface pump for conjoint reciprocation. A pneumatic drive system alternately provides pressurized gas to an instroke port of the pneumatic cylinder and to the pressure vessel to vertically reciprocate the piston rod, the intermediate drive member and the piston rod of the subsurface pump to pump formation fluid upwardly through the tubing. | 01-24-2013 |
| 20130062050 | MATING UNIT ENABLING THE DEPLOYMENT OF A MODULAR ELECTRICALLY DRIVEN DEVICE IN A WELL - An electric pump assembly is provided in a well, the pump comprising an electric motor module having a first outer housing and a first mating means, an electric pump module having a pump inlet and a pump outlet, and a second outer housing and a second mating means. In one aspect, the electric motor module and electric pump module are capable of being reversibly joined together by the first and second mating means, as the electric motor module includes a first rotating member that is capable of rotating relative to the first outer housing, and the electric pump module includes a second rotating member that is capable of rotating relative to the second outer housing. In this way, the first rotating member and second rotating member can transfer torque when the electric motor module and electric pump module are joined. In another aspect, a flowpath is provided in each module, the flowpaths fluidly communicating when the modules are joined. | 03-14-2013 |
| 20130075078 | DOWNHOLE SAMPLING TOOL - The present invention relates to a downhole sampling tool for taking out fluid samples of a fluid present in a casing having an internal cross-sectional casing area. The downhole sampling tool comprises a first tool part and a second tool part, a sampling inlet arranged in the first part, and an actuation unit arranged in the second part adapted to move the sampling inlet into contact with the fluid in a first part of the casing area for taking out a fluid sample of the fluid present in that part of the casing area. | 03-28-2013 |
| 20130092368 | DIFFUSER/EMULSIFIER FOR AQUACULTURE APPLICATIONS - A method of treatment of water in an aquatic environment. Water is first pumped from a reservoir to a first mixing station. An inert gas is introduced into the pumped water at the first mixing station to provide inert gas saturated water, which inert gas saturated water will displace undesired gasses in the water in the reservoir. The inert gas saturated water is then pumped to a sparging column such that the inert gas and undesired gasses will be released from the inert gas saturated water to provide depleted water. | 04-18-2013 |
| 20130175025 | INTEGRATED OPENING SUBSYSTEM FOR WELL CLOSURE SYSTEM - Certain aspects and embodiments of the present invention are directed to a subsurface safety valve that can be disposed in a wellbore that is through a fluid-producing formation. The subsurface safety valve can include a closure mechanism, a sleeve, and a control line. The closure mechanism can be positioned in a passageway defined by a tubing string. The closure mechanism can be configured to prevent a flow of fluid to a portion of the passageway that is closer to a surface of the wellbore than the closure mechanism. The sleeve can be positioned in the passageway adjacent to the closure mechanism. The control line can communicate pressure to a piston from a pressure source within an inner diameter of the tubing string, causing the piston to apply a force to the sleeve. The sleeve can open the closure mechanism in response to the force being applied to the sleeve. | 07-11-2013 |
| 20130180704 | OIL WELL PUMP APPARATUS - An oil well pumping apparatus for pumping oil from a well to a wellhead provides a tool body that is sized and shaped to be lowered into the production tubing string of the oil well. A working fluid is provided that can be pumped into the production tubing. A flow channel into the well bore enables the working fluid to be circulated from the prime mover via the production tubing to the tool body at a location in the well and then back to the wellhead area. A pumping mechanism is provided on the tool body, the pumping mechanism includes upper and lower impeller devices. The upper impeller device is driven by the working fluid. The lower impeller device is rotated by the upper impeller device. Each upper and lower impeller devices are connected with a shaft. A specially configured flow diverter directs the working fluid to an impeller blade in between the top and bottom of an upper impeller device. | 07-18-2013 |
| 20130206389 | DUAL CLOSURE SYSTEM FOR WELL SYSTEM - Certain aspects and embodiments of the present invention are directed to a dual closure system disposed within a wellbore and capable of preventing the production of fluids from a fluid-producing formation to the surface. The dual closure system can include a passive closure mechanism and a subsurface safety valve coupled to an electric submersible pump positioned within a passageway defined by the tubing string. The passive closure mechanism and the subsurface safety valve can prevent production of fluid in the absence of the subsurface safety valve. The subsurface safety valve can be positioned within a passageway defined by a tubing string such that the subsurface safety valve can apply force to the passive closure mechanism. The force applied to the passive closure mechanism can maintain the passive closure mechanism in an open position, allowing movement of fluid to the surface in the presence of the active closure mechanism. | 08-15-2013 |
| 20140048250 | VALVE WITH SHUTTLE - A valve with a shuttle for use in a flow management system is capable of bypassing a backflow. | 02-20-2014 |
| 20140090830 | LUBRICATOR WITH INTERCHANGEABLE PORTS - A lubricator is provided which has a unitized body with at least one port in communication with the body's bore and its outer surface, to which port(s) connectors with different outer fittings for further connection to other equipment may be attached and sealed, and later detached and replaced with other connectors. The connectors may have different outer fittings or may be a plug or valve. This allows the connection of a single port to external equipment to be changed and the fitting for that external equipment's connection to be altered, without having to disconnect the lubricator from its well-head and stem or any of the lubricator's other connections. | 04-03-2014 |
| 20140196885 | Method and System for Monitoring The Incursion of Particulate Material into A Well Casing within Hydrocarbon Bearing Formations including Gas Hydrates - A method and system for monitoring any incursion of particulate matter from a gas hydrate formation into a well casing used for the production of the gas hydrate and determining the degree of incursion of particulate material within the distal end of the well casing. | 07-17-2014 |
| 20140196886 | Apparatus for Connecting And Disconnecting a Downhole Assembly - In a well extending from the surface of the earth to a deposit of production fluid there beneath, a system for delivering the contents of the deposit to the earth's surface. The system comprising a rod string capable of being driven by a source of motive power at the earth's surface, including an internally overshot assembly rod at the end of the rod string; a downhole assembly, including a pump and receiver with a shaft extending upwardly from the downhole assembly, the receiver shaft being connectable to the overshot assembly such that rotation of the rod string and overshot assembly drives the pump to push the production fluid to the surface of the earth. | 07-17-2014 |
| 20140202681 | Bladder Stress Reducer Cap - A submersible pump assembly has modules, including a rotary pump, an electrical motor, and a seal section located between the motor and the pump. The seal section has a tubular housing with a lower adapter secured to the housing and joining the seal section with the motor. An upper adapter is secured to the housing and joins the seal section with another one of the modules. An inlet port in the upper adapter admits well fluid into the housing. A tubular, flexible compensator element has an upper end sealed to the upper adapter and a lower end sealed to the lower adapter. A communication passage in the lower adapter admits lubricant from the motor into the compensator element. A cap is mounted around the upper end of the compensator element. The cap has a skirt extending radially outward to limit upward expansion of the compensator element. | 07-24-2014 |
| 20140209291 | SEALS FOR ELECTRIC SUBMERSIBLE PUMP - A submersible pump can include a male part that includes an outer diameter; a female part that includes an inner diameter; an elastomeric seal element disposed between the male part and the female part; and a non-elastomeric seal element disposed between the male part and the female part. Various other apparatuses, systems, methods, etc., are also disclosed. | 07-31-2014 |
| 20140209292 | Seals for Electric Submersible Pump - A submersible pump can include a male part that includes an outer diameter; a female part that includes an inner diameter; an elastomeric seal element disposed between the male part and the female part; and a non-elastomeric seal element disposed between the male part and the female part. Various other apparatuses, systems, methods, etc., are also disclosed. | 07-31-2014 |
| 20150083393 | HYBRID ELECTRIC GENERATION PLANT FED BY SOURCES OF A FOSSIL/SOLAR ORIGIN - The present invention relates to an electric generation plant ( | 03-26-2015 |
| 20150096739 | Frac System with Hydraulic Energy Transfer System - A frac system that includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid. | 04-09-2015 |
| 20150101793 | Drive Unit for Extracting Water, Petroleum or Other Fluids - This invention is a type of pump drive unit for extracting water, petroleum or other fluids by alternating between top-down and bottom-up operation using a pumping string that enables fluids to be extracted from thousands of meters down. This unit can be used in any well that uses a mechanical pump without any modification to the existing installation, and it achieves a reduction in operating and extraction equipment costs on the order of 20%. The drive unit has a piston ( | 04-16-2015 |
| 20150136384 | WIPER AND SEAL ASSEMBLY FOR A PUMP - A tubing pump includes a seal housing insertable into a production string of tubing with a seal assembly mounted in an interior of the seal housing. The assembly includes at least an upper seal and seal holder and a lower seal and seal holder, each seal energizable by fluid to provide a fluid-tight seal around a reciprocating tubular member. The seals and holders are isolated from each other in a manner whereby the lower seal remains un-energized until the seal above it fails. | 05-21-2015 |
| 20150300136 | PLUNGER LIFT APPARATUS - An improved bypass valve assembly for a plunger lift apparatus comprises a bypass valve cage having improved flow characteristics and a simplified clutch assembly having enhanced durability and low cost. | 10-22-2015 |
| 20150300137 | Pump Drive Unit for Water, Oil or Other Fluid Extraction - A reciprocating seesaw-type (upward-downward) pump drive unit for water, oil, or other fluid extraction; the pump drive unit uses a pumping rod string that allows pumping fluids from depths of thousands of meters. This unit can be used in any well operated with mechanical pumping, without making any changes to the existing installation, achieving a reduction of around | 10-22-2015 |
| 20150354287 | COUPLING FOR RODS - A cold worked and spinodally-hardened copper alloy comprising from about 8 to about 20 wt % nickel, and from about 5 to about 11 wt % tin, the remaining balance being copper, and having a 0.2% offset yield strength of at least 75 ksi, is used to form a sucker rod coupling or subcoupling. Each coupling is formed from a core having two ends, each end having an internal thread. These box ends engage the pin of a sucker rod or other rod. The exterior surface of the core includes grooves running between the two ends. | 12-10-2015 |
| 20160010436 | Bypass Plunger | 01-14-2016 |
| 20160017700 | BUMPER ASSEMBLY HAVING PROGRESSIVE RATE SPRING - A bumper assembly for down-hole use in a well. In one embodiment, the bumper assembly includes a fish neck, a cage, and a progressive rate spring disposed there-between. When a plunger strikes the top of the fish neck, the progressive rate spring dampens the force delivered by the plunger, thereby prolonging the useful life of the plunger and/or the bumper assembly. | 01-21-2016 |
| 20160097243 | Extra Low Profile Cable Protectors - A pumping system useful for pumping fluids from a subterranean formation to a surface facility includes a first component and a second component connected to the first component with a neck flange. The pumping system further includes a motor lead cable that provides electrical power from the surface facility to the pumping system and a cable protector connected to the neck flange that secures the motor lead cable to the first and second components. The cable protector includes a first clamp section and a second clamp section. The second clamp section includes a lead cable recess that extends in a longitudinal direction along the exterior of the second clamp section and a band recess that extends in a circumferential direction along the exterior of the second clamp section. A tie or band resides in the band recess and extends around the circumference of the cable protector to secure the motor lead cable within the lead cable recess. | 04-07-2016 |
| 20160168963 | BYPASS DART AND ASSEMBLY | 06-16-2016 |
| 166105100 | Having sediment trap or deflector | 9 |
| 20100089568 | DEWATERING APPARATUS - A submersible water pump and a dewatering system comprising the submersible pump. The submersible water pump includes a housing and an outer tube. The housing includes a housing dividing wall and a cylinder head having a bore therethrough through which the outer tube fits. The housing is in slidable engagement with the outer tube and the housing dividing wall. The dewatering system with the submersible pump is used to pump water from vertical coal bed methane wells. | 04-15-2010 |
| 20100175869 | Downhole Separator - The desander ( | 07-15-2010 |
| 20100258296 | Slickline Conveyed Debris Management System - A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid continues through a screen and into the pump for eventual exhaust back into the water in the wellbore. A modular structure is envisioned to add debris carrying capacity. Various ways to energize the device are possible. Other tools run on slickline are described such as a cutter, a scraper and a shifting tool. | 10-14-2010 |
| 20100258297 | Slickline Conveyed Debris Management System - A wellbore cleanup tool is run on slickline. It has an onboard power supply and circulation pump. Inlet flow is at the lower end into an inlet pipe that keeps up fluid velocity. The inlet pipe opens to a surrounding annular volume for sand containment and the fluid continues through a screen and into the pump for eventual exhaust back into the water in the wellbore. A modular structure is envisioned to add debris carrying capacity. Various ways to energize the device are possible. Other tools run on slickline are described such as a cutter, a scraper and a shifting tool. A motor driven by an onboard power supply operates the circulation pump as well as a vibration device to agitate the debris and prevent coring into the debris if compacted. A shroud presents an alternate flow path if the housing lower end is embedded in debris. | 10-14-2010 |
| 20130020070 | OIL WELL PUMP APPARATUS - An oil well pumping apparatus for pumping oil from a well to a wellhead provides a tool body sized and shaped to be lowered into the production tubing string. A working fluid is provided that can be pumped into the production tubing, by a prime mover. A flow channel into the well bore enables the working fluid to be circulated from the prime mover via the production tubing to the tool body at a location in the well and then back to the wellhead area. A pumping mechanism is provided on the tool body, including upper and lower spur gear or gears connected with a common shaft. The upper spur gear is driven by the working fluid. The lower spur gear is rotated by the first spur gear. The tool body has flow conveying portions that mix the working fluid and the produced oil as the oil is pumped. | 01-24-2013 |
| 20140262206 | BARRIER FOR A DOWNHOLE TOOL - A barrier assembly for use with a downhole pump includes a first tubular adapter; a second tubular adapter; a braided sleeve disposed between the first tubular adapter and the second tubular adapter, wherein the sleeve is configured to block passage of a particulate. | 09-18-2014 |
| 166105200 | Carried by reciprocating plunger or plunger rod | 1 |
| 20090178799 | DOWNHOLE WELL CLEANING TOOL - A downhole well cleaning tool adapted for connection between upper and lower sections of an elongate string includes a pump barrel having at least one fluid outlet proximate its upper end. A swab assembly is connected to a pump mandrel for reciprocation within the pump barrel to pump fluids upward to the outlet to draw fluid and debris into the lower string section and trap the debris. A lower portion of the swab mandrel is hollow and open at a lower end thereof with at least one conduit extending through a side wall of the swab mandrel to direct fluid laterally outward from the hollow lower portion against the side wall of the pump barrel during lowering into fluid to reduce debris build-up within the pump barrel. A wear bushing is mounted between the pump mandrel and barrel and a knuckle or swivel joint connects the swab and pump mandrels. | 07-16-2009 |
| 166105300 | Sediment trap formed in pumping chamber | 1 |
| 20150053394 | Inverted Shroud for Submersible Well Pump - A well pump assembly includes rotary pump and a submersible motor. A shroud surrounds the pump intake and the motor. The shroud has an open upper end in fluid communication with the pump intake. A tubular member of smaller diameter is secured to and extends downward from a lower end of the shroud. The tubular member may have an open lower end for drawing well fluid along a lower flow path up the tubular member to the pump intake. An upper flow path at the upper end of the shroud may have a minimum flow area that is smaller than a minimum flow area of the lower flow path. The tubular member has a smaller outer diameter than an outer diameter of the shroud. The tubular member may have a closed lower end to define a debris collection chamber with a drain valve. | 02-26-2015 |
| 166105400 | In pump discharge flow path | 1 |
| 20140174719 | APPARATUS AND METHODS FOR SEPARATING SAND FROM WELL FRACTURING RETURN WATER - Apparatus and methods for removing sand or other particulate from well fracturing return water are disclosed. In a sand separator box, a barrier element divides the tank into an upper compartment and a lower compartment. Particulate-laden return water flows through a gas separator and then into the upper compartment of the box. The barrier element allows the water in the upper compartment to pass into the lower compartment while keeping the sand or particulate in the upper compartment. As water accumulates in the lower compartment, it is pumped out to storage tanks or back to the well for reuse. | 06-26-2014 |
| 166105500 | Having liquid-gas separator | 24 |
| 20080210417 | GAS ANCHOR AND SOLIDS SEPARATOR ASSEMBLY FOR USE WITH SUCKER ROD PUMP - There is provided a gas anchor for use in admitting fluids into a downhole sucker rod oil pump. The gas anchor includes an outer shell positioned around a hollow core, which defines an interior region and an exterior region of the gas anchor. The gas anchor further includes an upper region and a lower region. The hollow core and outer shell have a plurality of holes passing through the hollow core and outer shell, and the holes provide fluid communication from the exterior region to the interior region of the anchor. The hollow core and outer shell further define at least one channel which is in fluid communication from the upper region to the lower region. Additionally, the plurality of holes are formed so as to induce a cyclonic rotation on fluids passing into the interior region of the gas anchor. | 09-04-2008 |
| 20090014171 | Method and an Apparatus for Separation and Injection of Water from a Water- and Hydrocarbon-Containing Outflow Down in a Production Well - A method and apparatus of separating, in a production well, water from a water- and hydrocarbon-containing production flow emanating from at least one surrounding production formation; and also of injecting, in the production well, a resulting water-containing liquid into at least one surrounding disposal formation, whilst a resulting hydrocarbon-containing liquid is produced out of the production well. The water-containing liquid is separated from the production flow by using at least one water separation device being exposed to a pressure difference (P | 01-15-2009 |
| 20090032244 | FLOW CONTROL SYSTEM HAVING AN ISOLATION DEVICE FOR PREVENTING GAS INTERFERENCE DURING DOWNHOLE LIQUID REMOVAL OPERATIONS - A flow control system includes a pump positioned in a wellbore to remove liquid from the wellbore. An isolation device is positioned in communication with the wellbore to substantially prevent gas flow at the pump during removal of the liquid. | 02-05-2009 |
| 20090032245 | FLOW CONTROL SYSTEM HAVING A DOWNHOLE ROTATABLE VALVE - A flow control system includes a pump positioned in a well to remove liquid from the well. An isolation device having a valve body and a valve spool is positioned downhole of the pump. The valve spool is rotatably received by the valve body and is capable of rotating between an open position and a closed position. During removal of the liquid from the well, the valve spool is in the closed position to substantially reduce fluid flow past the valve spool and thus gas interference at the pump. | 02-05-2009 |
| 20090050312 | FLOW CONTROL SYSTEM HAVING A DOWNHOLE CHECK VALVE SELECTIVELY OPERABLE FROM A SURFACE OF A WELL - A flow control system includes a pump positioned in a well to remove liquid from the well. A check valve is positioned in the well and includes an open position and a closed position. The check valve in the open position allows gas from a producing formation of the well to flow past the check valve, while the check valve in the closed position substantially reduces gas flow at the pump from the producing formation. A compressed gas source is in fluid communication with the well to provide compressed gas to move the check valve to the closed position. | 02-26-2009 |
| 20090151928 | ELECTRICAL SUBMERSIBLE PUMP AND GAS COMPRESSOR - A wellbore fluid production system that is disposable in a wellbore comprising a separator, a pump, a compressor, and a motor. The separator segregates the gas and liquid and delivers the gas to the compressor inlet and the liquid to the pump inlet. The pump pressurizes the liquid for delivery to the surface. The compressor pressurizes the gas for reinjection into the wellbore, injection into another subterranean formation, or for delivery to the surface. | 06-18-2009 |
| 20090218091 | Downhole gas flow powered deliquefaction pump - The present invention relates to a method and system for removing water from gas wells. The water is removed by positioning a pump in a liquid layer below the perforations through which gas enters a gas well and powering a water pump with electrical power generated by an energy recovery system which produces electricity from a gas flow through the energy recovery system to an earth surface. | 09-03-2009 |
| 20090229815 | Apparatus and Method for Extracting Petroleum from Underground Sites Using Reformed Gases - Methods and apparatus for removing oil or natural gas from the ground. In one example, the method may include reforming a fuel source by reaction with water to generate driver gas, and injecting the driver gas into the oil well. The reforming operation may include causing the combustion of a combustible material with ambient oxygen for the release of energy; and heating a reforming reaction fuel and water sources, with the energy released from the combustion of the combustible material, to a temperature above that required for the reforming reaction wherein the fuel and water sources are reformed into driver gas. In one example, the amount of the combustible material combusted is sufficient to result in the release of enough energy to heat an amount of the reforming reaction fuel and water sources to the temperature above that required for the reforming reaction to proceed. The driver gas may be used to help extract oil from the ground and especially oil from depleted oil wells. It may also be used to drive natural gas trapped underground or in coal beds to the surface. | 09-17-2009 |
| 20090288818 | PASSIVE GAS SEPARATOR FOR PROGRESSING CAVITY PUMPS - An electrical submersible well pump assembly having a progressing cavity pump, a pump motor, a flex shaft connecting the pump motor to the pump, and a gas/liquid separator on the inlet to the pump. An inner and outer housing circumscribe a portion of the flex shaft, each having fluid inlets. The fluid inlets on the outer housing are above the inner housing inlets and an annulus is formed between the inner and outer housing. Wellbore fluid enters the assembly through the outer housing inlets, flows downward through the annulus, and into the inner housing inlets. Gas separates from the liquid as the fluid flows downward from the outer housing inlets to the inner housing inlets. | 11-26-2009 |
| 20100108307 | SYSTEM, METHOD AND APPARATUS FOR GAS EXTRACTION DEVICE FOR DOWN HOLE OILFIELD APPLICATIONS - A gas extraction device for down hole oilfield applications utilizes the flow of the liquid, created by an artificial lift device, to produce conditions by which the gas is drawn into tubing. A venturi creates a low pressure area through a constricted section of the tubing. The pressure within the throat of the venturi drops the pressure in the casing. The device is axially adjusted to allow communication ports to a lower pressure area of the casing annulus. The lower pressure in the venturi draws the gas into the liquid stream and into the production tubing above the device. The gas is then transferred through the well head within the liquid stream. | 05-06-2010 |
| 20100319908 | FLOW CONTROL SYSTEM HAVING A DOWNHOLE CHECK VALVE SELECTIVELY OPERABLE FROM A SURFACE OF A WELL - A flow control system includes a pump positioned in a well to remove liquid from the well. A check valve is positioned in the well and includes an open position and a closed position. The check valve in the open position allows gas from a producing formation of the well to flow past the check valve, while the check valve in the closed position substantially reduces gas flow at the pump from the producing formation. A compressed gas source is in fluid communication with the well to provide compressed gas to move the check valve to the closed position. | 12-23-2010 |
| 20110048696 | GAS-LIQUID SEPARATOR - A gas-liquid separator separates free water at a downhole position of a gas well. The separator includes a centrifugal separator within a tubular portion defining a gas inlet and a gas outlet. Upstream of the centrifugal separator, the tubular portion is provided with a plurality of drain holes through which free water which was centrifugated to the tubular portion enters an annular duct allowing the collected water to flow off due to gravity. Upstream of the drain holes, a jet pump is arranged. The jet pump is driven by the gas stream to create underpressure in the duct and to suck back gas which has entered the annular duct through the drain holes. The gas-liquid separator has no moving parts and avoids monitoring or controlling of the separating process. | 03-03-2011 |
| 20110162832 | GAS BOOST PUMP AND CROSSOVER IN INVERTED SHROUD - An above-motor mixed flow booster pump combined with a fluid crossover that directs up into the inside of an inverted shroud to allow enhanced gas separation. A gas and liquid separator is used to enhance separation. The system is simple and provides increased gas handling capability for high flow or low flow gas well dewatering applications, including vertical wells, horizontal wells, slant wells. The boost pump allows the moving of a mixed flow upwards to the top of an inverted shroud in wells lacking the required pressure. | 07-07-2011 |
| 20110162833 | Downhole Separator - The desander ( | 07-07-2011 |
| 20110209866 | CORRUGATED SETTLING CUP AND A MULTI-CUP UNIFORM FLUX GAS ANCHOR - The present invention discloses a corrugated settling cup and a multi-cup uniform flux gas anchor, which belong to oilfield gas-liquid separation devices. The external profile of the cup body of the corrugated settling cup rises in a corrugated shape along an axial direction of the corrugated settling cup, which facilitates rapid aggregation and rise of gas. The multi-cup uniform flux gas anchor is comprised of a plurality of the corrugated settling cups, and further includes a central pipe, a plurality of settling cup protectors and a well-flushing valve, wherein the plurality of settling cup protectors are slipped onto the central pipe in clearance fit and the plurality of the corrugated settling cups are slipped onto the central pipe in clearance fit between every two settling cup protectors, a plurality of liquid inlet holes are located evenly on the central pipe at a position close to an inner bottom of each corrugated settling cup, and a lower portion of the central pipe is connected to the well-flushing valve. With the plurality of the corrugated settling cups, the gas anchor divides a gas-liquid mixture into a number of portions, and the external profile rising in a corrugated shape allows the separated gas to rapidly aggregate and rise up, thereby achieving the object of performing effective gas-liquid separation, increasing pump efficiency and oil production, saving energy and reducing consumption. | 09-01-2011 |
| 20120043072 | DOWNHOLE WATER-OIL SEPARATION ARRANGEMENT AND METHOD - Disclosed herein is a downhole water-oil separation arrangement which includes a body having one or more portions thereof configured to have an affinity to a selected fluid. The body further will include one or more portions thereof that are configured to have an affinity to another fluid. | 02-23-2012 |
| 20130284423 | DOWNHOLE GAS AND LIQUID SEPARATION - A gas separator connectable to a pump for flowing production fluid, the separator having a housing defining an internal cavity with an inlet end defining for the production fluid. A housing first pumping stage pressurizes the production fluid, and a first fluid flow restrictor downstream of the first pumping stage limits the production fluid to a selected first flow rate. A first separation chamber in the housing downstream of the first fluid flow restrictor separates some gas from the production fluid, and a housing second pumping stage further pressurizes the production. A second fluid flow restrictor downstream of the second pumping stage limits the production fluid flow to a selected second flow rate, and a second separation chamber downstream to the second fluid flow restrictor effects further gas separation from the production fluid. | 10-31-2013 |
| 20140158343 | DOWNHOLE GAS SEPARATOR AND METHOD - A downhole separator ( | 06-12-2014 |
| 20140216720 | ABRASION RESISTANT GAS SEPARATOR - A gas separator is configured to separate gas from a two-phase fluid. The gas separator includes a rotatable shaft and one or more separation stages. At least one of the one or more separation stages includes a rotor connected to the rotatable shaft and a channeled compression tube, wherein the channeled compression tube includes a compression tube hub and a plurality of channels. The channels are configured to isolate abrasive solid particles from the rotary components within the gas separator. The gas separator may optionally include a streamer upstream from the separation stage that reduces rotational currents upstream from the rotor. | 08-07-2014 |
| 20140318763 | SYSTEM FOR THE CONTINUOUS CIRCULATION OF PRODUCED FLUIDS FROM A SUBTERRANEAN FORMATION - Removing water from a subterranean formation entails pumping hydraulic oil from a surface-located hydraulic oil pump through a hydraulic oil line to a downhole downhole pump piston to drive it in a first direction to pump water through a downhole water line to a water chamber of a transfer chamber at the surface. A piston separates the water chamber and an oil chamber and moves to compress the hydraulic oil in the oil chamber of the transfer chamber. The hydraulic oil pump may then pump hydraulic oil into the oil chamber causing the piston to move toward the water chamber, thereby moving water in the downhole water line and resetting the piston in the downhole water pump. A water valve in the downhole water line at the surface may open and release water when the piston in the downhole water pump reaches a predetermined or reset position. | 10-30-2014 |
| 20150354328 | WELLBORE CONVEYOR DEVICE - The present invention refers to a wellbore conveyor device for conveying a medium ( | 12-10-2015 |
| 20160069167 | DOWNHOLE GAS RELEASE APPARATUS - The present invention provides for an apparatus for use with a traveling valve assembly of a downhole pump for releasing gas and thereby breaking gas locks. The apparatus comprises a piston slidably disposed within a cylindrical housing, the piston being driven by an attached plunger element. On the down stroke of the pump, the piston protrudes through end of the cylindrical housing engaging and opening the adjacent valve. On the up stroke of the pump, the piston retracts into the cylindrical housing, disengaging from | 03-10-2016 |
| 20160130921 | DOWNHOLE PUMP SEATING NIPPLE WITH PERFORATIONS - A pump seating nipple for retaining a downhole pump assembly in a fixed position within a production tubing string has a generally cylindrical body defining a nipple bore for receiving the downhole pump assembly. The pump seating nipple attaches to the production tubing string. At the bottom end of the body, the nipple bore is open to the bore of the production tubing string. An upper portion of the body surface engages a pump assembly seating cup. The body has a lower skirt which defines openings which allow gas flow from the nipple bore into the casing annulus. | 05-12-2016 |
| 20180023378 | Oil Production Well Gas Separator System Using Progressive Perforations | 01-25-2018 |
| 166106000 | With packer or plug | 5 |
| 20090145595 | Gas assisted downhole pump - An artificial lift system is disclosed for removing wellbore fluids from directional or horizontal wellbores. The artificial lift system incorporates a dual tubing arrangement in which each string contains (respectively) a downhole pumping system or a gas lift system. In one string, a gas lift system, preferably intermittent, is utilized to lift reservoir fluids from below a packer assembly to above a packer assembly. This same tubing string is sealingly engaged to the packer and also contains a concentric inner tubing string which extends through and below the packer into the deviated well bore section. This concentric tubing arrangement provides a conduit for the injection gas and also a conduit for the return of commingled reservoir fluids and injection gas where the commingled fluids exit into the annular void between the dual tubing arrangement and the casing, located above the packer. The second tubing string, which is not sealingly engaged to the packer, contains a downhole pump placed above the exit point of the commingled fluids into the annulus. Because these liquids are trapped above the packer, each time the gas lift system cycles, they accumulate over time and rise above the downhole pump, which pumps the liquids to the surface. In an alternate embodiment of the invention, a plurality of tubing string arrangements are utilized A plurality of tubing string arrangements are sealingly engaged to a packer and operatively connected to a concentric tubing string that extends into the deviated section of the wellbore. A gas lift system, preferably intermittent, is utilized to lift reservoir fluids from below the packer to above the packer. This concentric tubing arrangement provides a conduit for the injection gas and also a conduit for the return of commingled reservoir fluids and injection gas. The commingled fluids exit through a perforated sub in one of the tubing strings above the packer and enter into the annular void between the dual tubing arrangement and the casing. A standing valve is located in the second tubing string below the perforated sub, which effectively trap the liquids in the annulus above the packer. Each time the gas lift system cycles, these liquids accumulate over time and rise above the downhole pump, which pumps the liquids to the surface. | 06-11-2009 |
| 20110000661 | WELL JET DEVICE - For extracting oil from wells, pipe string, packer with axial through hole and support with axial channel with seat for jet pump mounting. Bypass channel with return valve is in support wall. Pump has cylindrical body with annular shoulder, for support seat mounting. Body has channel for supplying active medium to the pump nozzle, channels for supplying pumped out medium and removing media mixture and through channel with sealing unit. The channel couples to unit downstream channel. The unit has axial channel passing and displacing a logging cable/instrument. Mixing chamber with diffuser connected to the pipe string cavity upstream of pump positions axially to the nozzle. Channel diameter of support downstream of seat is equal to or greater than packer hole. The invention makes it possible to extend the device functionalities due to the possibility of disconnecting the in-tube space and casing annulus when the pump is stopped. | 01-06-2011 |
| 20110005744 | FLOW CONTROL SYSTEM HAVING AN ISOLATION DEVICE FOR PREVENTING GAS INTERFERENCE DURING DOWNHOLE LIQUID REMOVAL OPERATIONS - A flow control system includes a pump positioned in a wellbore to remove liquid from the wellbore. An isolation device is positioned downhole of the pump and is expandable within the wellbore between a sealed position and an unsealed position. The isolation device in the sealed position substantially reduces gas flow at the pump during removal of the liquid. | 01-13-2011 |
| 20110132595 | ELECTRIC SUBMERSIBLE PUMPING SYSTEM WITH GAS VENT - A technique is provided for pumping fluids from a wellbore. An electric submersible pumping system is deployed in a wellbore on a tubing. Free gas can potentially accumulate around the electric submersible pumping system, but a gas vent is positioned to remove free gas. | 06-09-2011 |
| 20130240199 | SEAL SECTION WITH PARALLEL BAG SECTIONS - A downhole pumping system includes a motor, a pump driven by the motor and a seal section positioned between the pump and the motor. The seal section preferably includes a first seal bag assembly, a second seal bag assembly and an interconnect module connected between the first seal bag assembly and the second seal bag assembly. The interconnect module includes a plenum, at least one fluid exchange passage connected to the plenum, and a shaft seal assembly. The shaft seal assembly is configured to divert fluid from the plenum into the at least one fluid exchange passage. In another aspect, a first group of interconnect modules within the seal section each includes a shaft seal assembly oriented in a first direction and a second group of the interconnect modules each includes a shaft seal assembly oriented in a second direction to selectively apply an axial force on the shaft. | 09-19-2013 |
| 166107000 | Receptacles | 4 |
| 20120132415 | OIL-PRESSURE TYPE FIXED PISTON SAMPLER - The present invention relates to an oil-pressure type fixed piston sampler for sampling a soil sample for site investigation. The oil-pressure type fixed piston sampler comprises a sampling unit ( | 05-31-2012 |
| 20130206390 | Downhole Tool Piston Assembly - A piston assembly may comprise a housing with a wall, and at least one chamber formed in the wall. A piston may be disposed within the chamber and at least one passageway may pass through the piston. At least one pin may be disposed within the passageway and attached to the chamber, and the piston may be free to translate relative to the pin. | 08-15-2013 |
| 20150101794 | HYDROCARBON PRODUCTION APPARATUS - An apparatus is disclosed for use in a hydrocarbon production well that includes a casing extending from a segment of the production well to a wellhead. A production conduit extends inside the casing, from a first end in the hydrocarbon production well to a second end at the wellhead. A receptacle includes a bottom spaced from the first end of the production conduit and at least one sidewall extending around a portion of the production conduit proximal the first end such that the receptacle extends around the first end of the production conduit. The receptacle includes an opening for liquid to pass into the receptacle to separate liquids from gases. A submersible pump is disposed in the production well and includes a motor outside the receptacle and coupled to a pump body inside the receptacle to pump the liquid from a pump inlet in the receptacle, through the production conduit to the second end. | 04-16-2015 |
| 166108000 | Piston actuates foot valve | 1 |
| 20140345851 | WELL TOOLS OPERABLE VIA THERMAL EXPANSION RESULTING FROM REACTIVE MATERIALS - Methods of actuating a well tool can include releasing chemical energy from at least one portion of a reactive material, thermally expanding a substance in response to the released chemical energy, and applying pressure to a piston as a result of thermally expanding the substance, thereby actuating the well tool, with these steps being repeated for each of multiple actuations of the well tool. A well tool actuator can include a substance contained in a chamber, one or more portions of a reactive material from which chemical energy is released, and a piston to which pressure is applied due to thermal expansion of the substance in response to each release of chemical energy. A well tool actuator which can be actuated multiple times may include multiple portions of a gas generating reactive material, and a piston to which pressure is applied due to generation of the gas. | 11-27-2014 |
