Entries |
Document | Title | Date |
20080202763 | Method to Optimize Production from a Gas-lifted Oil Well - A method for determining and reporting a general production state of a gas-lift system for an oil well, the oil well having associated tubing, casing, and gas-lift valves, and wherein sensor signals from the welt and its associated tubing and casing are input into mathematical models. The method comprises the steps of: a) extracting values from the mathematical models that indicate instantaneous states of production; b) supplying the sensor signals and the values to an associative memory agent; and c) using the associative memory agent to associate the sensor signals and the values to generate the general production state. | 08-28-2008 |
20080230230 | MULTIPLE STAGE TOOL FOR USE WITH PLUNGER LIFT - A multiple stage tool for use with plunger lift is disclosed. The disclosed device can be removably positioned at a desired position in a well's tubing, thus providing an upper limit for the travel distance of a first plunger. Subsequent well tubing partitions can be established with the introduction of subsequent plungers followed by the disclosed device. | 09-25-2008 |
20080257556 | NON-AQUEOUS FOAM COMPOSITION FOR GAS LIFT INJECTION AND METHODS FOR MAKING AND USING SAME - A hydrocarbon drilling fluid system is disclosed including a hydrocarbon fluid and a foaming composition, where the foaming composition includes a polymer, a gelling agent and its cross-linking agent, an optional foaming agent, or mixtures or combinations thereof. Uses of this drilling fluid system in a variety of downhole application are also disclosed. | 10-23-2008 |
20090000791 | Fluid Lift System - A fluid lift system includes a canister defining a cavity for lifting fluid and an orifice at an upper portion of the canister extending to the cavity, a reel, and a cable operably associated with the reel and the canister. The fluid lift system further includes a motor operatively associated with the reel, the motor operable to raise and lower the canister and a head housing defining a bore in which the upper portion of the canister is sealingly received, the head housing defining a port extending into the cavity. The fluid lift system further includes a pump in fluid communication with the head housing, the pump operable to vacuum lifted fluid from the cavity of the canister through the orifice and the port and a control system for operating the motor and the pump. | 01-01-2009 |
20090038806 | ACCUMULATION AND RECYCLING OF CAPTURED GAS IN RECOVERY OF SUBTERRANEAN FLUIDS - A system and method for capturing lift gas in wells with small formation gas production. The system includes a separator for separating gases from wellbore fluid and a vessel for accumulating the separated gas. The system also includes a switch that directs fluid from the vessel to a wellbore upon attainment of a condition, such as a certain pressure in the vessel. The method includes the steps of separating gas from a wellbore fluid, directing the gas to an accumulation vessel, and directing the gas from the vessel to a wellbore upon attainment of a condition, such as a certain pressure in the vessel. | 02-12-2009 |
20090050331 | Method For Enhanced Recovery Of Oil From Oil Reservoirs - The present invention provides a method for enhancing the recovery of oil from a subterranean reservoir using waterflooding, wherein the flooding fluid used in the waterflooding process comprises water and comminuted feathers. The use of comminuted feathers is expected to increase the recovery of oil by improving sweep efficiency. | 02-26-2009 |
20090078427 | SYSTEM FOR COMPLETING WATER INJECTOR WELLS - A system for completing water injection wells includes an injector well completion system. In an embodiment, an injector well completion system for liquid injection in a formation includes a casing string disposed in a wellbore having a tubing bore. The casing string includes a casing and a sliding sleeve. The sliding sleeve has a pressure control valve having open and closed positions, an actuator mandrel having a flow control device, and an injection pressure communication port. The open position of the pressure control valve actuates the actuator mandrel to align the flow control device and the injection pressure communication port to inject liquid from the tubing bore to the formation and generate fractures in the formation. | 03-26-2009 |
20090188673 | PLUNGER LIFT SYSTEM FOR WELL - A plunger lift system has a bumper and a landing positioned in tubing below a safety valve of a well. A plunger moving between the bumper and landing lifts columns of liquid above the plunger when pushed by downhole pressure. A valve on the plunger's housing is movable between open and closed positions to either permit or prevent flow through the plunger. When the plunger engages the landing, a striker rod on the landing opens the valve permitting fluid communication through the plunger to a sales line at the surface. The valve is biased to the closed position to prevent fluid communication through the plunger. When the plunger is disengaged from the striker rod, the valve closes so that application of downhole pressure can again move the plunger uphole. A controller cycles the plunger between the bumper and the landing by controlling fluid flow in the well. | 07-30-2009 |
20090194293 | APPARATUS, ASSEMBLY AND PROCESS FOR INJECTING FLUID INTO A SUBTERRANEAN WELL - Apparatus, assembly and process for allowing gas lift operations to be conducted along a relatively long perforated interval below a packer in a subterranean well. An elongated segregation member is lowered into locking engagement with a bypass mandrel secured to a tubing string above the packer. This segregation member is configured and dimensioned to define two fluid flow paths. A first flow path extends from the surface of the earth through the annulus formed between the tubing string above the packer and casing secured in the well, the bypass mandrel, a bore through a portion of the segregation member and the interior of the tubing string below the packer. A second flow path extends from the subterranean region penetrated by the well through the annulus formed between the tubing string below the packer and casing secured in the well, the annulus between the segregation member and the packer, and the interior of the tubing string above the packer. Fluid produced into the well from the subterranean region is conveyed to the surface via the second flow path and can be assisted by gas injected into the first flow path via retrievable gas lift valves in the tubing string above and below the packer. Pressurized gas is conveyed via the first flow path to these retrievable gas lift valves. | 08-06-2009 |
20090194294 | Downhole Draw-Down Pump and Method - An apparatus and method for drawing down a fluid level in a well bore. The apparatus and method includes a first tubular disposed within the well bore forming a well bore annulus therein, an annular nozzle connected to an end of the first tubular, and a second tubular concentrically disposed within the first tubular forming a micro annulus. The annular nozzle includes an annular adapter and a suction tube having an internal section and an external section with an outer diameter less than the outer diameter of the first tubular. The external section of the suction tube may be positioned within a restricted section of the well bore, for example, within a restricted well bore section containing a casing liner to drawn down the fluids and solids within the well bore to produce hydrocarbons. | 08-06-2009 |
20090229831 | GAS LIFT SYSTEM - An improved gas lift system is provided. In certain embodiments, the gas lift system includes a first tubing string and a second tubing string disposed within the first tubing string. The second tubing string is movable between a first position and a second position. Inflow of production fluids through an aperture in the first tubing string is selectively blocked when the second tubing string is in the second position. A port in the second tubing string delivers lift gas to the annulus between the first tubing string and the second tubing string. In the first position, the port is blocked to prevent fluid communication between the second tubing string and the first tubing string. In the second position, the port is uncovered to permit fluid communication between the second tubing string and the first tubing string, while a sealing member provides a seal that isolates the fluid communication from a well formation. | 09-17-2009 |
20090255684 | SYSTEM AND METHOD FOR THRU TUBING DEEPENING OF GAS LIFT - The present disclosure is directed to a gas lift system adapted to provide a gas injection point to a deeper location in a wellbore. A turn-over suspension mandrel can be landed inside a side pocket mandrel and connected to a gas lift valve on one end and a coil on the other end. A length of production tubing can extend from the side pocket mandrel. The production tubing can include a production packer to seal the annulus between the tubing and the well casing. The turn-over suspension mandrel can be constructed such that gas entering the gas lift valve is directed down through the coil and into the wellbore beneath the production packer. A plug can be placed at the bottom of the coil in order to prevent blowouts during installation of the gas lift system. An alternative embodiment of the present disclosure provides a coil and plug hung from a gas lift valve of a pack-off assembly. | 10-15-2009 |
20090266554 | SMART COMPRESSED CHAMBER WELL OPTIMIZATION SYSTEM - A system for extracting a gas and a liquid from a well broadly includes tubing strings that collect well liquid and a gas lift system that removes the collected liquid. A standing valve connects the strings and permits liquid to enter the strings from the subsurface formation. The gas lift system includes a compressor that uses pressurized gas to remove the collected liquid and discharge the liquid into a separator. The system permits liquid to be collected and removed while simultaneously producing gas from the well casing. The system includes an accumulator that stores compressed gas for removing the collected liquid. | 10-29-2009 |
20090301731 | Methods to Increase Recovery of Treatment Fluid Following Stimulation of a Subterranean Formation Comprising Cationic Surfactant Coated Particles - The invention provides a method of treating a subterranean formation penetrated by a wellbore, the method comprising the steps of: (a) mixing a particulate and an active material to obtain an at least partially coated particulate, wherein: (i) water forms a contact angle of less than 90 degrees with a surface of the particulate, (ii) the active material is capable of forming a coating on the particulate, (iii) the active material forms a contact angle less than 90 degrees with the particulate, and (iv) water forms a contact angle of greater than 90 degrees with a layer of the active material; (b) mixing the at least partially coated particulate and a carrier fluid to obtain a treatment fluid; and (c) introducing the treatment fluid into the subterranean formation through the wellbore to deposit the at least partially coated particulate into the subterranean formation. | 12-10-2009 |
20090321083 | Method and apparatus for removing liquid from a gas well - A method of removing liquid from a gas well having a production tubing with a restriction therein run into the upper portion thereof and wherein a plunger lift system in arranged within the production tubing, the plunger lift system comprising an upper limiting means, a lower limiting means, a plunger that is capable of moving between the upper and lower limiting means, and a one-way valve situated at or above the upper limiting means that is capable of allowing fluid passage therethrough in an upward direction. | 12-31-2009 |
20090321084 | Liquid Pump Rod - The present invention comprises a downhole unit that includes at least one plunger and that uses a power fluid to recover production fluid from a well. | 12-31-2009 |
20100051288 | Low Rate Gas Injection System - A dewatering device is provided that can be inserted concentrically within the production tubing string of a natural gas-producing wellbore. The dewatering device includes a pressure-isolating chamber that is provided with a fluid inlet valve and a fluid outlet valve and associated gas lift valves. Compressed gas and soap are used to form a foamy liquid mixture that is lifted out of the chamber. | 03-04-2010 |
20100065279 | Blower assembly - The gas trailer assembly has an intake conduit for receiving gas from the well. The gas is communicated from the intake conduit to a blower and into an exhaust pipe. Gas exiting the blower passes through the exhaust pipe and into a pipeline. At least a portion of the intake conduit is disposed in the exhaust pipe so that gas in the exhaust pipe is cooled by contact with the outer surface of the intake conduit. | 03-18-2010 |
20100089588 | SYSTEM, METHOD AND APPARATUS FOR CONCENTRIC TUBING DEPLOYED, ARTIFICIAL LIFT ALLOWING GAS VENTING FROM BELOW PACKERS - An artificial lift deployed on concentric tubing allows gas to be vented from below packers in a well. A central flow path is used for the fluid production from the artificial lift system, while an outer concentric tubing allows for the venting and production of gas from below a packer. The gas enters the outer concentric flow path through a perforated sub set that is located below the packer. Sealing of the inner concentric string flow from the outer concentric flow path is achieved with a polished bore receptacle and stinger assembly. | 04-15-2010 |
20100186966 | HYDROCARBONS - An oil well includes a wellbore ( | 07-29-2010 |
20100236789 | System and method for producing a well using a gas - Systems and methods for producing a well using a gas are disclosed herein. A compressed lift gas can be provided to a well to obtain a production stream. The production stream can be separated to obtain the product and a recycle gas stream. The recycle gas stream can be immediately recompressed for use as lift gas, or separated to form a lift gas stream, and a power stream containing natural gasses from the well. The lift gas stream is recycled for use as lift gas, while the power stream can be transported and/or collected for sale, recycled for use as lift gas, or consumed as power for the compressor, based on measurements obtained throughout the system, coupled with practical and economic variables. By supplementing or replacing generated lift gas and/or an external power source with natural gas from the well, the present systems and methods can become self-contained after start-up. | 09-23-2010 |
20100294506 | SYSTEMS AND METHODS FOR DELIQUIFYING A COMMINGLED WELL USING NATURAL WELL PRESSURE - A method for removing fluids from a commingled well comprises positioning a fluid removal system in the well. In addition, the method comprises sealing a first formation from a second formation, shutting in the annulus, and closing off an inner flow passage of a tubing string. Further, the method comprises allowing the pressure of the first and second production zones to build up naturally. Still further, the method comprises flowing a fluid from the first production zone through a first of a plurality of check valves into the inner flow passage, and flowing a fluid from the second production zone through a second of the plurality of check valves into the inner flow passage. Moreover, the method comprises re-opening the inner flow passage of the tubing string and lifting the fluid in the inner flow passage to the surface. | 11-25-2010 |
20100294507 | PLUNGER LIFT - In a hydrocarbon producing wellbore, liquids (oil, condensate, water of mixtures thereof) from the formation may accumulate and build up a hydrostatic pressure gradient, which can kill gas production. Various embodiments of the present invention include a plunger lift system that can remove said formation liquids from a wellbore. A piston, including a sleeve with a hollow passage may travel downhole, accumulate formation liquids and utilizing the gas pressure deliver said formation liquids to the top of the wellbore for removal. The piston face may be one single wall that closes the hollow passage or the piston face may be comprised of a plug and an seat that unite to form a complete piston face downhole. Aspects of the plunger lift system, for example the sleeve and or the plug may be at least partially formed from materials that are buoyant in the formation liquids. | 11-25-2010 |
20100300701 | ARTIFICIAL LIFT SYSTEM - An artificial lift system provides an artificial lift design specifically for the pumping of liquids from natural gas wells, but not limited to this application. In doing so, production rates and reserves recovered can be significantly increased. The artificial lift system uses small diameter continuous tubing to run the pump in the hole and deliver small volumes of high pressure dry gas as a power fluid to the pump. This power fluid forces liquid that has been drawn into the pump from the bottom of the wellbore to surface. By removing the liquids from the wellbore the natural gas can flow unrestricted to surface. The design and equipment allow for a cost effective artificial lift alternative. | 12-02-2010 |
20100307764 | Bimetallic Diaphragm for Trapped Fluid Expansion - A subsea well tubular member has an axial passage with upper and lower retrievable plugs releasably mounted in the passage, the plugs having ends facing each other. A cavity is formed on one of the ends of one of the plugs. A movable barrier is mounted sealingly over the cavity, the barrier being movable repeatedly between inner and outer positions in response to temperature changes. The inner position reduces a volume of the cavity and increases a volume of a trapped fluid space between the ends of the plugs. The outer position increases the volume of the cavity and decreases the volume of the trapped fluid space. The barrier has two metallic layers with different coefficients of expansion. | 12-09-2010 |
20100307765 | METHOD FOR USING ACID GAS AS LIFT-GAS AND TO ENHANCE OIL RECOVERY FROM A SUBSURFACE FORMATION - A method of enhancing crude oil recovery from a crude oil containing formation uses an integrated acid gas injection system, which injects a first fraction of an available volume of acid gas via an acid gas injection well into the formation and a second fraction of the available volume of acid gas as a lift gas into a crude oil production well traversing the formation at a selected distance from the acid gas injection well to inhibit early breakthrough of acid gas from the formation into the production well. | 12-09-2010 |
20100319926 | Gas Boost Circulation System - A submersible well pump assembly in a wellbore; the pump assembly includes a liquid lift pump and a booster pump for pumping a two-phase mixture of gas and liquid. A shroud with an opening at its upper end partially encloses the pump assembly. An annulus is formed between the shroud and the wellbore inner circumference. Two phase fluid from the booster pump exits the shroud through a port and flows up the annulus to the shroud opening. Liquid in the two-phase flow separates from the gas and flows into the shroud opening and onto the liquid lift pump. The gas continues to flow up the wellbore, past the shroud opening, to the wellbore entrance. | 12-23-2010 |
20100326670 | LIFT WASH-THROUGH FACILITY - An apparatus for pumping fluid, the apparatus including a pump housing including a plunger connected to a terminal end of a coiled tubing and a first port. The apparatus further including the plunger configured to move longitudinally upward and downward, wherein the plunger includes a second port and a surface pumping unit configured to modulate between two modes, a first mode configured to limit a stroke length of the plunger so that the first and second ports do not engage, and a second mode wherein the first and second ports engage. Also, a method for pumping fluid into a wellbore using an apparatus, the method comprising inserting a housing including a coiled tubing and a plunger into the wellbore, wherein the plunger is located at a terminal end of the coiled tubing, and wherein the housing includes a first port and a plunger includes a second port. The method further including moving the plunger longitudinally upward and downward within the housing wherein a stroke length of the plunger is limited during the moving the plunger and extracting fluid from the wellbore. The method further including extracting fluid from the wellbore, pulling the plunger longitudinally upward until the first and second ports are aligned, and circulating fluid into the wellbore through the coiled rubbing and first and second ports discharging into an annulus of the wellbore. | 12-30-2010 |
20110005772 | SYSTEM, DEVICE, AND METHOD OF INSTALLATION OF A PUMP BELOW A FORMATION ISOLATION VALVE - Systems, devices, and methods of producing a fluid include a pump assembly that operates to increase the hydrostatic pressure of the fluid. The pump assembly is located in a well completion below a formation isolation valve. The pump assembly releasably connects to a polished bore receptacle in the well completion. | 01-13-2011 |
20110011596 | WELLBORE DRILLED AND EQUIPPED FOR IN-WELL RIGLESS INTERVENTION ESP - A string for drilling a well for installation and retrieval of ESP equipment without a rig. A well is drilled past the end of casing which has been cemented in place and extends to a wellhead at the surface. A receptacle is attached between production casing joints and run into the well | 01-20-2011 |
20110024130 | PLUNGER LIFT WITH CHEMICAL INJECTION - A method and system operates a well having an outer casing, a tubing positioned inside the outer casing, and a plunger moveable within the tubing to periodically draw out a liquid slug. A chemical to slug size ratio is set by the operator. Thereafter, the gas flow rate is monitored and the well is shut-in when the gas flow rate drops below a predetermined threshold. After well shut-in, a calculated amount of chemical foaming agent is injected. The size of the liquid slug is calculated and then the well is opened, drawing the plunger and liquid slug up to the surface. The calculated amount of chemical foaming agent is calculated based on one or more previous liquid slug size determinations and the set chemical to slug size ratio. | 02-03-2011 |
20110024131 | METHOD FOR RECOVERING OIL FROM AN OIL WELL - In a method for optimizing gas lift operations in the production of crude oil, a surfactant is injected into the an oil well such that the surface tension between a lift gas and the formation fluid being produced is reduced and/or a lift gas-formation fluid foam is formed. The reduction in surface tension and/or foam formation increases the efficiency of the lift gas for lifting the formation fluid to the surface. The surfactant is a silicone resin which may be combined with other surfactants, in some embodiments. 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 subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 02-03-2011 |
20110073318 | PRODUCING GAS AND LIQUID FROM BELOW A PERMANENT PACKER IN A HYDROCARBON WELL - The invention relates to an arrangement for positively pumping liquids to the surface of a hydrocarbon well where the hydrocarbon well has bee previously completed with a permanent packer and tailpipe. A rod pump having a plunger connected to a hollow rod string can positively pump the liquids collecting at the bottom of the well while the natural gas is produced up the annulus between the production tubing and the hollow rod string. In this invention, the tail pipe is perforated above the rod pump and below the packer to all the natural gas into the production tubing. | 03-31-2011 |
20110073319 | DOUBLE STRING PUMP FOR HYDROCARBON WELLS - The invention relates to a double string pump for pumping liquids to the surface of a hydrocarbon well and especially a hydrocarbon well that is producing both natural gas and liquid fluids. The double string pump includes a hollow tube that raises and lowers the plunger and carries the liquids to the surface and an outer tube receives liquids down into the well to lubricate the moving parts and flush particles from areas prone to wear and back toward the production tube. The natural gas is produced through the annulus between wellbore casing and the outer production tubing string. | 03-31-2011 |
20110083855 | Gas Injection Control Devices and Methods of Operation Thereof - Gas injection control devices are provided, particularly for deployment in a well-bore to control injection of a gas into a tube or pipe to lift a liquid up the tube, such as crude oil for example. A gas control device is described which comprises a housing, and at least two control valve arrangements within the housing. Each arrangement has an inlet for receiving gas from a pressurized supply, an outlet for supplying pressurized gas for injection into the tube, an inlet valve in a fluid path between the inlet and outlet, and an actuator associated with the inlet valve. Each actuator is independently controllable to switch the respective inlet valve between its open and closed configurations. This allows the gas injection to be switched on and off, and facilitates control of the injection gas flow rate. | 04-14-2011 |
20110094751 | Arrangement Used In Oil Field Wells For Lifting Hydrocarbons - Arrangement for the lifting of hydrocarbons in oil field wells, comprising a lifting assembly formed by a fluid collecting hose and a fluid suction tube within the well casing. The suction tube extends along the collecting hose, which has an open upper end, through which passes the upper section of the suction tube, which has an end attached to the pulling cable of the “collecting hose/suction tube” assembly. The lower end is closed by means of a one-way check valve, letting the fluid flow into the space formed between the hose and said tube. The upper section projecting beyond the open upper end of the collecting hose has a laterally conformed fluid discharge opening. When the “hose/suction tube” assembly rises by action of the pulling cable and reaches the end of its travel, said discharge opening is positioned within a sealed chamber in the wellhead defined between a pair of sealing rings, so that the fluid may be discharged by means of a suction pump and/or under the gas pressure from within the well casing. | 04-28-2011 |
20110180267 | Battery-Powered and Logic-Controlled Gas Lift Valve for Use in Wells and Methods of Using and Making Same - 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. | 07-28-2011 |
20110186302 | RIGLESS LOW VOLUME PUMP SYSTEM - A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot. | 08-04-2011 |
20110198095 | SYSTEM AND PROCESS FOR FLUE GAS PROCESSING - The present invention is directed to a new and improved method for sequestration of carbon dioxide, the method including the steps of injecting a carbon dioxide-containing injection gas into a subsurface containment region with a series of captures zones; providing sufficient time for said injection gas to at least partially stratify and form constituent gas mixtures which at least partially accumulate in the capture zones; providing a vent associated with one of the capture zones; and, evacuating at least a portion of the constituent mixtures through the associated vent. | 08-18-2011 |
20110214880 | ARTIFICIAL LIFT SYSTEM AND METHOD FOR WELL - An artificial lift system provides a lifting mechanism located in a well. The lifting mechanism communicates with a remote intake that is located below in the well. A compressed gas source provides compressed gas to the well annulus at a pressure that is sufficient to move the well fluid from the remote intake up to the lifting mechanism. The well has an annulus and tubing. The well has isolation elements that isolate the producing formation from compressed gas in the annulus. Various sources of compressed gas can be used such as a compressor, an accumulator or a gas sales line. A controller is provided to control the intermittent application and removal of compressed gas in the annulus and also to control the operation of the lifting mechanism. The well could be a horizontal well or a vertical well. The well could be a cased hole or an open hole well. | 09-08-2011 |
20110247831 | SUBMERSIBLE HYDRAULIC ARTIFICIAL LIFT SYSTEMS AND METHODS OF OPERATING SAME - The present invention is directed to methods for extracting fluids from oil and gas wells. More specifically, it is directed toward methods and apparatuses to power and control down hole hydraulic devices using subterranean centrifugal pumps. This invention represents a vast improvement over current hydraulic artificial lift systems. This invention provides for safe, efficient, and increased fluid recovery of oil and gas reserves from subterranean reservoirs in all types of wells, including deviated and horizontal wells. | 10-13-2011 |
20110253382 | PLUNGER FOR PERFORMING ARTIFICIAL LIFT OF WELL FLUIDS - A plunger for removing fluid from a gas producing well has a fluid path through the plunger body, a narrow passageway within the fluid path, and a central orifice at an end of the passageway. The plunger may have a lip within the fluid path spaced above the central orifice. The lip interacts with gas and fluid exiting the central orifice when the plunger is rising within the gas producing well. The plunger may have a bypass valve to allow the plunger to fall while the well is flowing, and may have a central constriction to regulate the rate of falling. | 10-20-2011 |
20110278015 | SYSTEM AND METHOD FOR PRODUCTION OF RESERVOIR FLUIDS - An artificial lift system removes reservoir fluids from a wellbore. A gas lift system is disposed in a first tubing string anchored by a packer, and a downhole pump, or alternative plunger lift, may be positioned with a second tubing string. A dual string anchor may be disposed with the first tubing string to limit the movement of the second tubing string. The second tubing string may be removably attached with the dual string anchor with an on-off tool without disturbing the first tubing string. A one-way valve may also be used to allow reservoir fluids to flow into the first tubing string in one direction only. The second tubing string may be positioned within the first tubing string and the injected gas may travel down the annulus between the first and second tubing strings. A bi-flow connector may anchor the second string to the first string and allow reservoir liquids in the casing tubing annulus to pass through the connector to the downhole pump. Injected gas may be allowed to pass vertically through the bi-flow connector to lift liquids from below the downhole pump to above the downhole pump. The bi-flow connector prevents the downwardly injected gas from interfering with the reservoir fluids flowing through the bi-flow connector. In another embodiment, gas from the reservoir lifts reservoir liquids from below the downhole pump to above the downhole pump. A first tubing string may contain a downhole pumping system or alternative plunger lift above a packer assembly. A concentric tubing system below the packer may lift liquids using the gas from the reservoir. | 11-17-2011 |
20110308812 | ARTIFICIAL LIFT SYSTEM - An artificial lift system provides an artificial lift design specifically for the pumping of liquids from natural gas wells, but not limited to this application. In doing so, production rates and reserves recovered can be significantly increased. The artificial lift system uses small diameter continuous tubing to run the pump in the hole and deliver small volumes of high pressure dry gas as a power fluid to the pump. This power fluid forces liquid that has been drawn into the pump from the bottom of the wellbore to surface. By removing the liquids from the wellbore the natural gas can flow unrestricted to surface. A control system for the artificial lift system delivers a pre-determined volume of power fluid to the pump on a periodic basis. Feedback mechanisms may adjust the volume and/or the period to improve the efficiency of the pump. | 12-22-2011 |
20120000670 | DEVICE AND METHOD FOR IMPROVING LIQUID REMOVAL FROM GAS, CONDENSATE & OIL WELLS WHEN USING A MULTI-CHANNEL SYSTEM - The present invention is used in conjunction with a multi-channel system of a production string for deployment in gas, condensate or oil wells. An end-piece is placed at the entrance to such multi-channel system. It includes a semi-enclosed space helping to increase the proportion of gas phase entering the system at its bottom entrance. Increased proportion of gas allows lifting liquids and/or solids from the wellbore with greater efficiency. Examples of using the invention include wellbore water removal for gas wells with liquid loading problems, for solution gas drive or gas cap driven oils wells during their initial “natural flowing phase”, or during gas re-injection or gas-lift recovery operations for oil wells. It can also be used for gas-lifting water in water wells. | 01-05-2012 |
20120080198 | Multi-Sleeve Plunger for Plunger Lift System - A plunger lift system has a plunger with main and ancillary sleeves that dispose in tubing. The sleeves can move in the tubing between a bumper and a lubricator. Both sleeves have a passage for fluid to pass therethrough, and the sleeves can fall independently of one another from the surface to the bumper. When disposed on the bumper, the sleeves mate together. Building gas pressure downhole can then lift the mated sleeves, which push a column of liquid along with them to the surface. The main sleeve has a narrow stem on its distal end with openings that communicate with the sleeve's passage. A nodule also extends from the distal end. The ancillary sleeve fits at least partially on the narrow stem, and an orifice in the sleeve's opening engages on the nodule. Thus, the mated sleeves close off fluid communication through the main sleeve's passage. | 04-05-2012 |
20120080199 | DOUBLE STRING SLURRY PUMP - The invention relates to a double string slurry pump for pumping liquids to the surface of a hydrocarbon well and especially a hydrocarbon well that is producing both natural gas and liquid fluids. The double string slurry pump includes a hollow tube that raises and lowers the plunger and carries the liquids to the surface and an outer tube receives liquids down into the well to periodically flush area around the pump to stir up particles and fines for conveyance out of the wellbore with the liquids. The additional conduit for flushing may be used to provide biocides, solvents or other treatments including with liquids at elevated temperature to create desired results or changes downhole. Moreover, the additional conduit may be provided with ports to provide access to the interior of the gas production path to provide such treatments above the well. The natural gas is produced through the annulus between wellbore casing and the outer production tubing string. | 04-05-2012 |
20120125625 | SYSTEM AND METHOD FOR INTERMITTENT GAS LIFT - A gas-lift apparatus and method for use in a well in which liquids accumulate in a liquid zone. The apparatus comprises a first string extending into the liquid zone and having upper and lower ends; a second string surrounding the first string and defining an annulus therewith, the second string extending a distance from the first string lower end such that the annulus has upper and lower ends, the annulus being closed at its upper and lower ends and defining a chamber, the chamber being in fluid communication with the inside of the first string; a check valve controlling the flow of liquid into from the wellbore into the lower end of said annulus; a gas valve allowing the flow of gas from the first string into the upper end of the chamber; and a valve for controlling the flow of gas into the upper end of said inner string. | 05-24-2012 |
20120132437 | Plunger Lift Systems and Methods - The present invention discloses apparatuses, systems, and methods for operating a gas well. Some embodiments include a plunger apparatus configured to fall through a continuous water phase (including water slugs) in a gas producing well by overcoming pressure and drag 5 forces from the water by having a sufficient mass, hydrodynamic profile, and sufficiently large area for passage of the continuous water. In one embodiment, a plunger body and plug mechanism are provided, wherein the plug mechanism has open and closed positions, which may be automatically changed or controlled by a surface or other control system, and wherein the plunger body and plug may be a physically integrated one-piece system, or an interoperable two piece system. | 05-31-2012 |
20120175127 | Dense Slurry Production Methods and Systems - Methods and systems for producing a dense oil sand slurry from subsurface reservoirs are provided. The methods include reducing pressure at a producer pipe inlet to draw a dense slurry into the producer pipe using a jet pump, generating a diluted dense slurry using the jet pump, and lifting the diluted dense slurry through the producer pipe utilizing a slurry lift apparatus, which may be a fluid lift apparatus. The systems include a producer pipe into an oil sand reservoir, a jet pump configured to generate a low pressure region around the opening of the producer pipe to draw the dense slurry into the producer pipe and dilute the dense slurry to form a diluted dense slurry; and a gas lift apparatus configured to lift the diluted dense slurry through the producer pipe towards the surface of the earth. | 07-12-2012 |
20120211239 | APPARATUS AND METHOD FOR CONTROLLING GAS LIFT ASSEMBLIES - A production fluid control apparatus is disclosed. The apparatus includes: a gas lift assembly in fluid communication with a borehole production conduit, the gas lift assembly configured to control a flow of pressurized gas between an annular region of a borehole and the production conduit; and at least one plug disposed in operable communication with the gas lift assembly, the at least one plug configured to prevent fluid flow through the gas lift assembly and configured to be actuated to allow fluid flow through the gas lift assembly in response to exposure to a downhole fluid. | 08-23-2012 |
20120211240 | APPARATUS AND METHODS FOR WELL COMPLETION DESIGN TO AVOID EROSION AND HIGH FRICTION LOSS FOR POWER CABLE DEPLOYED ELECTRIC SUBMERSIBLE PUMP SYSTEMS - A method and apparatus for reducing erosion and friction losses in a wellbore using a power cabled deployed electric submersible pump (ESP). The apparatus can include an ESP disposed within production tubing, wherein a portion of the production tubing surrounding the ESP contains fluid openings that are operable to allow produced fluids to flow outward, thereby increasing the available volume for the produced fluids. The increased volume results in lower fluid velocities of the produced fluid, which advantageously reduces erosion and friction loss. | 08-23-2012 |
20120222867 | HYDROCARBONS - An oil production arrangement comprises an oil reservoir ( | 09-06-2012 |
20120234556 | DOWNHOLE ARTIFICIAL LIFTING SYSTEM - The present invention relates to a downhole artificial lifting system for introducing fluid into a production casing from an annulus arranged outside the production casing. The production casing has an axial extension and a casing wall with a wall thickness, and the system comprises the production casing which at a first part is surrounded by an intermediate casing creating the annulus which is downwardly closed, and a fluid delivering means pumping fluid into the annulus. The invention also relates to a tool for use in the system and a method. | 09-20-2012 |
20120247785 | HYDRAULICALLY OPERATED WELLBORE LIQUID LIFT USING CASING GAS AS ENERGY SOURCE - A system for lifting liquid from a wellbore includes a turbine selectively coupled to a source of gas flow originating in the wellbore. The turbine is arranged to convert the gas flow directly into rotation of the turbine. An hydraulic pump is rotationally coupled to the turbine. An hydraulic cylinder and piston are arranged to move a sucker rod string disposed in the wellbore. Control valves are provided to selectively apply gas flow to the turbine and hydraulic pressure from the pump to lift the piston and enable lowering thereof by the weight of the sucker rod string. The system further comprises control circuits configured to operate the control valves. | 10-04-2012 |
20120273221 | Smart Hydraulic Pumping Device for Recovery of Oil and Obtaining of Information from the Bottom of the Reservoir - A hydraulic pump smart device for production of oil, recording of pressure and temperature, temporary closing and leveling of pressure in a single and simple operation is provided. The intelligent hydraulic pumping device includes a jet pump assembly coupled with a bottom shut-off valve and is coupled to a gauge carrier, forming an integrated single-block unit. A bottom shut-off valve is incorporated into to the jet pump and is closed by a system of a plunger and two balls. The recovery of the smart device is generated by the opening of a by-pass on injecting a drive fluid in reverse at a low pressure (approximately 100 to 500 psi). | 11-01-2012 |
20120273222 | Dynamic seal pad plunger arrangement - A plunger system for maximizing the liquid lift potential of a plunger arranged for vertical travel in a conduit in a gas/oil production well. The plunger system comprises an elongated plunger body mandrel having an upper or first end and a second or lower end with a fluid transmitting bore extending longitudinally therethrough, from the second or lower end of the plunger body and into at least a central portion of the plunger body, a plurality of curvilinearly shaped, replaceable wear pads arranged in a controllably radially displaceable manner on the plunger body, and at least one fluid ejecting nozzle arranged extending through a side wall of the plunger body. | 11-01-2012 |
20120318524 | PLUNGER LIFT SLUG CONTROLLER - A method for controlling the liquid load size of a plunger lift well during the shut in time of the well to facilitate a controlled plunger rise. Intra-cycle control allows dynamic adjustments within a cycle to keep the plunger running and not stalling out or rising too fast. The method includes the steps of shutting in the well to build up pressure within the well, adjusting a size of a liquid slug within the tubing while the well is shut in, opening a valve to relieve pressure within the well and raise the plunger within the tubing, pushing the liquid slug out of the well with the plunger, and closing the valve wherein the plunger falls within the tubing. The intra-cycle adjustments include reducing the size of the liquid slug for preventing fluid loading and increasing the size of the liquid slug for controlling a rise rate of the plunger. | 12-20-2012 |
20130025875 | PIPE-IN-PIPE APPARATUS, AND METHODS AND SYSTEMS - An apparatus is disclosed which provides fluid communication between the inner bore and the annular space in a pipe-in-pipe system. Other embodiments disclose an apparatus which provides fluid communication between adjacent segments of the annular space, between the inner bore or the annular space and an external source in a pipe-in-pipe type system. Methods and systems are disclosed utilizing the various apparatus embodiments to transport well fluids in an offshore or onshore hydrocarbon production operation. | 01-31-2013 |
20130068470 | OIL RECOVERY - Embodiments of the present disclosure include performing one or more oil recovery cycles that recovers oil from an oil containing reservoir. The one or more oil recovery cycles can include providing a flow of supercritical carbon dioxide to the oil containing reservoir, injecting a flow of a surfactant to the flow of supercritical carbon dioxide, where the supercritical carbon dioxide and the surfactant form a mixture, forming an emulsion of the mixture in water within the oil containing reservoir to control mobility of the supercritical carbon dioxide in the oil containing reservoir, reducing the flow of the surfactant to a reduced flow while maintaining the flow of the supercritical carbon dioxide to the oil containing reservoir, and recovering the oil displaced from the oil containing reservoir. | 03-21-2013 |
20130087343 | Dual Flow Gas Lift Valve - A gas lift system has mandrels deploying downhole and has gas lift valves deploying on the mandrels. In general, the mandrel can have an interior and can have at least one port communicating outside the mandrel. To achieve higher gas injection while maintaining component sizes in desirable ranges, the gas lift valve of the present disclosure has multiple injection outlets, and a common opening pressure can control the opening of each of the injection outlets in the valve. The valve can open in two places, allowing gas to flow through the nose of the valve as well as through a ported latch at the top of the valve. In this way, that valve can offer larger injection capabilities while keeping a suitable outside diameter. | 04-11-2013 |
20130098629 | METHOD AND APPARATUS FOR REMOVING LIQUID FROM A HORIZONTAL WELL - A system and method for removing liquid from a horizontal wellbore is disclosed. The system and methods utilize multi-conduit tubing associated with one or more liquid intake port(s) and vent port(s) positioned at selected locations along the tubing and positioned within a wellbore. The one or more liquid intake ports are placed at liquid accumulation points along the primarily horizontal section of the wellbore. The one or more vent housings are placed at gas accumulation points along the primarily horizontal section of the wellbore. Various embodiments of intake port are also disclosed. | 04-25-2013 |
20130105174 | METHOD AND APPARATUS FOR ARTIFICIAL LIFT USING WELL FLUID ELECTROLYSIS | 05-02-2013 |
20130186638 | LINEAR ELECTRIC MOTOR FOR ARTIFICIAL LIFT SYSTEM - A method for pumping production fluid from a wellbore includes deploying a downhole assembly of an artificial lift system (ALS) into the wellbore. The downhole assembly includes a linear electric motor (LEM) and a pump. The method further includes operating the LEM, thereby reciprocating the pump and lifting production fluid from the wellbore to surface. The LEM includes a stator and a reciprocating head having permanent magnets. The production fluid leaks through an interface formed between the head and the stator. | 07-25-2013 |
20130199794 | Gas Lift System Having Expandable Velocity String - A velocity string deploys in production tubing of a gas well (or a gassy oil well) to help lift fluid toward the surface. The velocity string reduces flow area in the production tubing so that a critical flow velocity can be reached to lift liquid. Overtime, the reservoir pressure and resulting gas flow may decrease such that less liquid is produced toward the surface. At such a stage, operators then expand the velocity string to further decrease the flow area in the production tubing, which can produce the needed critical flow velocity to allow produced liquid to be lifted toward the surface. | 08-08-2013 |
20130255959 | PLUNGER FOR PERFORMING ARTIFICIAL LIFT OF WELL FLUIDS - A plunger for removing fluid from a gas producing well has a fluid path through the plunger body, a narrow passageway within the fluid path, and a central orifice at an end of the passageway. The plunger may have a lip within the fluid path spaced above the central orifice. The lip can interact with gas and fluid exiting the central orifice when the plunger is rising within the gas producing well. The lip may be provided by an internal fishing neck. The plunger may have a bypass valve to allow the plunger to fall while the well is flowing, and may have a central constriction to regulate the rate of falling. | 10-03-2013 |
20130264067 | Downhole Draw-Down Pump and Method - An apparatus and method for drawing down a fluid level in a well bore. The apparatus and method includes a first tubular disposed within the well bore forming a well bore annulus therein, an annular nozzle connected to an end of the first tubular, and a second tubular concentrically disposed within the first tubular forming a micro annulus. The annular nozzle includes an annular adapter and a suction tube having an internal section and an external section with an outer diameter less than the outer diameter of the first tubular. The external section of the suction tube may be positioned within a restricted section of the well bore, for example, within a restricted well bore section containing a casing liner to drawn down the fluids and solids within the well bore to produce hydrocarbons. | 10-10-2013 |
20130269949 | Cold Heavy Oil Production System and Methods - A system for producing hydrocarbons and sand from a formation includes a wellbore having a substantially horizontal portion. In addition, the system includes a liner disposed in the substantially horizontal portion. The liner has a longitudinal axis and includes a plurality of slots. Each slot is configured to pass sand from the formation into the wellbore. Further, the system includes a production string extending through the wellbore. Still further, the system includes a pump disposed at a downhole end of the production string in the liner. The pump has a central axis, an outlet coupled to the downhole end of the production tubing, and an inlet distal the production string. The pump is configured to pump hydrocarbons and sand from the formation to the surface. The central axis of the pump is oriented at an angle α measured downward from vertical. The angle α is between 60° and 90°. | 10-17-2013 |
20130277064 | SUBMERSIBLE PUMP SYSTEMS AND METHODS - A submersible pump system that is operable to permit selective access into a production zone of a well bore while a submersible pumping device is operating includes a Y-tool, a submersible pumping device, a control valve assembly and a power conduit. The control valve assembly is also operable to selectively permit access between the interior of the submersible pumping system and the exterior of the submersible pumping system. The valve is operable to form a dynamic seal. The power conduit is operable to convey both power and a pre-designated control signal simultaneously. A method for accessing the production zone of the well bore with a well bore tool uses the submersible pump system while the submersible pump system is producing production zone fluid. The submersible pumping device continues to operate without interruption after transmission of the pre-designated pump control signal. | 10-24-2013 |
20130277065 | ARTIFICIAL LIFT TOOL - The present invention relates to an artificial lift tool for being introduced in a wellbore or a casing and submerged in well fluid. The artificial lift tool extends in a longitudinal direction from a top end adapted to be connected to a wireline to a bottom end. The tool comprises a motor unit and a pump unit. Furthermore, invention relates to a production well wherein the artificial lift tool is submerged in a well fluid; to the use of the artificial lift tool for providing artificial lift in a well; and to a method for providing artificial lift in a well. | 10-24-2013 |
20130299181 | Rigless Low Volume Pump System - A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot. | 11-14-2013 |
20130299182 | Rigless Low Volume Pump System - A deliquification pump for deliquifying a well comprises a fluid end pump adapted to pump a fluid from a wellbore. In addition, the deliquification pump comprises a hydraulic pump adapted to drive the fluid end pump. The hydraulic pump includes a first internal pump chamber and a first pump assembly disposed in the first chamber. The first pump assembly includes a piston having a first end, a second end, and a throughbore extending between the first end and the second end. In addition, the first pump assembly includes a first wobble plate including a planar end face axially adjacent the second end of the piston and a slot extending axially through the first wobble plate. The first wobble plate is adapted to rotate about the central axis relative to the housing to axially reciprocate the piston and cyclically place the throughbore of the piston in fluid communication with the slot. | 11-14-2013 |
20130341033 | DIFFUSER FOR CABLE SUSPENDED DEWATERING PUMPING SYSTEM - A pump includes one or more stages, each stage including a tubular housing and a mandrel disposed in the housing. The mandrel includes a rotor rotatable relative to the housing and having: an impeller, a shaft, and one or more helicoidal blades on an outer surface of the impeller. The mandrel further includes a diffuser: connected to the housing, having the rotor shaft extending therethrough and having a plurality of vanes on an outer surface thereof. Each vane has an arcuate portion and a longitudinal portion. The diffuser further has a channel formed between an adjacent pair of vanes. The pump further includes a fluid passage formed between the housing and the mandrel. | 12-26-2013 |
20140000905 | METHOD AND APPARATUS FOR INJECTING GAS INTO A RESERVOIR | 01-02-2014 |
20140116719 | COILED TUBING DEPLOYED GAS INJECTION MANDREL - A coiled tubing gas injection mandrel includes a housing assembly capable of attachment to coiled tubing, wherein the housing assembly comprises an up-hole end, a down-hole end, a sleeve longitudinally integrally connected with the up-hole end and the down-hole end, and a slide-through valve receptacle assembly removably connected within the sleeve. In more detail, the slide-through valve receptacle assembly comprises an up-hole pipe with a shoulder, at least one laterally extending projection, at least one laterally extending port, a down-hole pipe integrally connected with the up-hole pipe, and a longitudinal bore within the up-hole pipe and down-hole pipe. The up-hole end and down-hole end are capable of attachment with coiled tubing. The slide-through valve assembly and the sleeve form a gas flow passageway, wherein the gas flow passageway controls the flow of gas through a gas lift valve installed in the slide-through valve receptacle for gas being injected into the coiled tubing. | 05-01-2014 |
20140166301 | STEAM GENERATION - A steam generation device and a method for generating steam using the device are disclosed. The device includes a fluid circulation pipe containing electrically and thermally conductive material, and at least one inductive cable made from an electrically conductive material wound around the pipe. The device and method allow for improved steam generation. | 06-19-2014 |
20140174756 | ARTIFICIAL LIFT METHOD FOR LOW PRESSURE SAGD WELLS - A pumping system includes a hydraulic motor assembly configured to drive a production pump. The hydraulic motor assembly includes a master pump located on the surface and an electric motor configured to controllably power the master pump. When moved by the electric motor, the master pump discharges a working fluid under pressure. The pressurized working fluid is transferred to a hydraulic turbine located in the wellbore. The hydraulic turbine converts the pressure of the working fluid into torque, which is transferred through a driveline to a production pump. The production pump pressurizes production fluids, which are carried under pressure to the surface. | 06-26-2014 |
20140209318 | GAS LIFT APPARATUS AND METHOD FOR PRODUCING A WELL - A gas lift system is provided for use in unloading a fluid from a perforation interval of a subterranean well to facilitate producing gas from a gas-bearing formation. The system may include a packer having dual ports, a tubing string running from the surface to the packer for producing the well, and an injection tool extending below from the packer into the perforation interval. The injection tool may include at least one gas lift valve for injecting gas into the perforating interval of the well. | 07-31-2014 |
20140216753 | Bernoulli Assisted Hydrocarbon Lift System and Method to Prohibit Water-Coning - The disclosed hydrocarbon lift system and method prohibits water-coning in production of oil from a subterranean reservoir to the earth's surface. The system comprises a well bore with a first and a second section. The first section has perforations which draw a first fluid into and up the well bore based on a negative pump pressure applied thereto. The second section has perforations which draw a second fluid into the well bore based on a differential pressure between the pump pressure and a lower induced pressure therein. The system also comprises a venturi structure fixtured into the well bore. The venturi structure has flaring ends connected by a constricting throat defining perforations therein. The constricting throat perforations draw the second fluid through the second section perforations into the venturi throat in response to the lower induced pressure in the second section created by an increased first fluid velocity there through. | 08-07-2014 |
20140231093 | Hydraulic Oil Well Pumping System, and Method for Delivering Gas From a Well - A hydraulic oil well pumping system is provided. The system uses a pump to exert hydraulic pressure against a reciprocating lift piston over a wellbore. The lift piston is operatively connected to a rod string and downhole pump for pumping oil from a wellbore. Thus, oil is pumped from the wellbore as the rod string and downhole pump move between upper and lower rod positions. In addition, the system includes at least one compressor cylinder having a compressor piston that reciprocates with the lift piston in order to compress produced gas at the surface. A method for compressing gas while pumping oil from a wellbore using such a system is also provided herein. | 08-21-2014 |
20140246206 | ROTATIONAL MOTION-INDUCING FLOW CONTROL DEVICES AND METHODS OF USE - Disclosed are autonomous inflow control devices and methods of use thereof. One flow control device includes a body having an inlet and an outlet and a flow chamber extending therebetween, the flow chamber being configured to convey a fluid composition comprising one of a desired and undesired fluid from the inlet to the outlet, a nozzle arranged at the outlet and in fluid communication with the flow chamber, and at least one helical groove defined along at least a portion of an axial length of the flow chamber, the at least one helical groove being configured to impart rotational motion to the fluid composition and thereby force at least some of the undesired fluid into the at least one helical groove and slow its progress along the axial length of the flow chamber. | 09-04-2014 |
20140251635 | APPARATUSES AND METHODS FOR GAS EXTRACTION FROM RESERVOIRS - Apparatuses and methods for extracting gas from a reservoir including a well bore having a large cross sectional area which may be determined by dividing a target flow rate of the reservoir by an actual sustained flow rate and multiplying a result by a flow path area for the actual sustained flow rate. A method of converting a well of a low pressure gas reservoir is further provided. | 09-11-2014 |
20140332227 | 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. | 11-13-2014 |
20140360732 | Bottle Chamber Gas Lift Systems, Apparatuses, and Methods Thereof - Applicants have created systems, methods, and apparatuses for increasing the production of fluid from a subterranean well. The system can include a controller and upper and lower portions. The upper portion can include an injection valve for regulating the amount of a first gas injected into an injection conduit. The lower portion can include a chamber valve for regulating the flow of a second gas through an upper tubing string and a vent valve for regulating the flow of the first gas and a standing valve. The collected fluid creates pressure in the lower portion causing the second gas to flow from the lower tubing string to the upper tubing string. The controller controls the injection valve and is coupled to a pressure gauge for measuring pressure in the lower portion. With the aid of this system, well operators can increase production of subterranean well formations, such as gas wells, without increasing backpressure on those formations. | 12-11-2014 |
20140360733 | Controlled Geyser Well - A system and method for creating a controlled geyser well with sustained periodical production includes a cap ( | 12-11-2014 |
20150027722 | Oil Well Gas Lift by Hydrogen Production Through Produced Water Electrolysis Completion - A method of using an electrochemical gas lift apparatus to induce artificial gas lift in a production fluid includes introducing the electrochemical gas lift apparatus into a well bore having a production zone, operating the electrochemical gas lift apparatus such that a combination of hydrocarbon fluid and formation water is introduced into the interior of the electrochemical gas lift apparatus, introducing electrical power to the electrochemical gas lift apparatus such that at least a portion of formation water in the interior of the electrochemical gas lift apparatus converts into product gases, operating the electrochemical gas lift apparatus such that the product gases form product gas bubbles in the interior of the electrochemical gas lift apparatus, and operating the electrochemical gas lift apparatus such that production fluid forms in the interior of the electrochemical gas lift apparatus. The production fluid comprises hydrocarbon fluid, unconverted formation water and product gas bubbles. | 01-29-2015 |
20150053414 | Open Ended Inverted Shroud with Dip Tube for Submersible 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 for drawing well fluid along an upper flow path down the shroud into the pump intake. A dip tube is secured to and extends downward from a junction with a lower end of the shroud. The dip tube is in fluid communication with the pump intake and has an open lower end for drawing well fluid along a lower flow path up the dip tube to the pump intake. The upper flow path has a minimum flow area that is smaller than a minimum flow area of the lower flow path. The dip tube has a smaller outer diameter than an outer diameter of the shroud. | 02-26-2015 |
20150083433 | GAS LIFT VALVE - A method for performing downhole gas lift operations includes coupling a gas lift valve to a tubing, wherein the gas lift valve includes an actuator, a flow control device disposed in the actuator, and a closure member that is initially in an open position; injecting a gas downhole and exterior to the tubing; urging the gas to enter the tubing via the gas lift valve; and creating a sufficient pressure differential across the gas lift valve to move the actuator, thereby causing the closure member to close the gas lift valve. | 03-26-2015 |
20150136414 | DISTRIBUTED LIFT SYSTEMS FOR OIL AND GAS EXTRACTION - A distributed artificial lift system is configured for use in a wellbore that includes a vertical section and at least one lateral section connected to the vertical section. The distributed artificial lift system includes a first remote assembly positioned within the first lateral section. The first remote assembly includes an equipment deployment vehicle and cargo selected from the group consisting of electric remote pumping units, tubing, tubing connectors, tubing adaptors, sensor packages, gas separators, perforating tools, injection pumps and other downhole components. The first remote assembly is optionally self-propelled and remotely-controlled. | 05-21-2015 |
20150136415 | Triwall Hydrocarbon Well Recovery System and Method - A buoyant ball assisted hydrostatic lift system and method comprises a second annulus formed between a well bore and an outer pipe within the well bore, and a first annulus formed between the outer pipe and an inner pipe. The system includes a seal disposed on the second annulus on at least a top end and a bottom end thereof with respect to the earth's surface. The seal is configured to prevent a fluid flow there through and preserve a condition of the well bore and the outer pipe and protect the environment against well perforations. The system also includes buoyant balls entrained in a first fluid in one of the annuli and an entrained column of the buoyant balls in the first fluid in one of the annuli, an aggregate weight thereof configured to entrain the balls and the first fluid into a second fluid in the inner pipe. | 05-21-2015 |
20150300138 | RECIPROCATING PUMPS FOR DOWNHOLE DELIQUIFICATION SYSTEMS AND FLUID DISTRIBUTION SYSTEMS FOR ACTUATING RECIPROCATING PUMPS - A hydraulic fluid distribution system includes a mechanical switch including a first valve, a first actuation pin extending axially from the first valve, and a second actuation pin extending axially from the first valve. The first valve includes an inlet port, a first outlet port, and a second outlet port. The first valve has a first position with the inlet port in fluid communication with the first outlet port and a second position with the inlet port in fluid communication with the second outlet port. The first actuation pin is configured to move in a first axial direction to transition the first valve from the second position to the first position, and the second actuation pin is configured to move in a second axial direction to transition the first valve from the first position to the second position. In addition, the hydraulic fluid distribution system includes a second valve having a first position that allows fluid communication between the first outlet port of the first valve and a first chamber and a second position that allows fluid communication between the second outlet port of the first valve and a second chamber. The second chamber is in fluid communication with a hydraulic fluid return passage when the second valve is in the first position and the first chamber is in fluid communication with the hydraulic fluid return passage when the second valve is in the second position. | 10-22-2015 |
20150322753 | BALL PLUNGER LIFT SYSTEM FOR HIGH DEVIATED WELLBORES - The invention generally relates to a plunger lift system that can be used in all type of oil and gas wells including wells of vertical, highly deviated, S-curved or horizontal bores. The plunger lift system has a ball-shaped plunger. Multiple ball plungers may be used for a single operation to lift liquid out of a wellbore. Certain embodiments further include a surface lubricator, associated piping and valve systems in communication with a pipeline, a surface control system and related equipment, a downhole bumper spring assembly and/or retrieval device having a magnet to retrieve the ball plunger of the wellbore if and when needed. The invention also relates to ball-shaped plungers and to methods for lifting liquid out of a wellbore employing such ball-shaped plunger. In certain embodiments, the ball plunger comprises a hole or a plurality of holes to aerate the fluid load. | 11-12-2015 |
20150322754 | METHOD OF GAS LIFT IN WELLS EXPERIENCING HYDROSTATIC LOADING - There is provided a method of gas lift having the steps of positioning a valve seat downhole in a gas well experiencing hydrostatic loading, the valve seat having a gas flow channel, and providing a valve closure movable between a closed position engaged with the valve seat to close the gas flow channel and an open position spaced from the valve seat permitted a flow of gas through the gas flow channel, the closure being biased by magnetic attraction to a normally closed position magnetically engaged with the valve seat, such that gas is only able to flow through gas flow channel when gas pressure is sufficient to move the closure to the open position by overcoming the magnetic attraction which maintains the closure in the closed position. | 11-12-2015 |
20150376995 | MODULAR TOP LOADING DOWNHOLE PUMP WITH SEALABLE EXIT VALVE and VALVE ROD FORMING APERTURE - A method and apparatus for improving the production efficiency of a well and preventing gas lock. The apparatus is a downhole pump and comprises a barrel, a reciprocating plunger and a body having a plurality of inlet valves. The apparatus does not require outlet valves. The body and inlet valves are positioned above the barrel and plunger, thus eliminating gas lock. Fluids enter the body through the valves and, during upstrokes of the plunger, are forced up the tubing string to the surface equipment. Modularity of the components permits pump components to be changed as the productivity of the well fluctuates and also allows production of more fluids with a smaller casing. The invention prevents gas lock by permitting gasses to escape between a sliding valve and a valve rod connected to the plunger. Additionally, an exit valve sealably engages the valve rod, which forms an aperture. During operation of the pump, the gasses escape through the aperture in the valve rod and rise up the tubing string. | 12-31-2015 |
20160010437 | ACCUMULATOR COUNTERBALANCED THREE-CHAMBER CYLINDER FOR ARTIFICIAL LIFT OPERATIONS | 01-14-2016 |
20160010438 | PNEUMATIC-ON-TOP COUNTERBALANCED THREE-CHAMBER CYLINDER FOR ARTIFICIAL LIFT OPERATIONS | 01-14-2016 |
20160032698 | Method of Operating a Well Using a Pump Assembly with a Variable-Frequency Drive - The method and device of exploitation of well by pumping unit with variable-frequency drive involes periodic repetition of the cycles including pumpdown, search for frequency when delivery stops and accumulation and at the same time to ensure such extraction of fluid from well which is equal to its inflow it is necessary to choose unit with higher capacity in comparison with inflow of fluid from formation into well and during the cycles the pumpdown-accumulation ratio is corrected depending on the results of the previous cycles until the pumpdown-accumulation time ratio stops to change and the torque at which the delivery stops is determined based on the equality of the current torque of the downhole motor shaft and check torque which is pre-determined based on stepwise drop of torque of the downhole motor shaft in the point when delivery stops when supply voltage is decreased. | 02-04-2016 |
20160097265 | TWO-PIECE PLUNGER - A two-piece well plunger is provided having an upper sleeve and a lower lance member that engages (e.g., unites) and disengages the upper member. The upper and lower member are sized for receipt within production tubing of a well and are configured to move upwardly in the production tubing when united and to fall separately when disengaged (e.g., separated). The upper sleeve is generally cylindrical and has an central bore. The lower lance member includes a dislodging rod that is sized to extend through central bore of the upper sleeve when the two pieces are united. The lance member and rod seal the central bore when the members are united. An upper end of the rod extends beyond a top end of the sleeve when the members are united and is utilized to disengage the members when the united plunger arrives in, a well head. | 04-07-2016 |
20160108709 | SYSTEM AND METHOD FOR PRODUCTION OF RESERVOIR FLUIDS - A system and method for lifting reservoir fluids from reservoir to surface through a wellbore having a first tubing string extending through a packer in a wellbore casing. The system includes a bi-flow connector in the first tubing string, a second tubing string in the first tubing string below the bi-flow connector, and a third tubing string in the first tubing string above and connected with the bi-flow connector. A fluid displacement device in the third tubing string is configured to move reservoir fluids to the surface. The first tubing string allows pressured gas to move from the surface through the bi-flow connector to commingle with and lift reservoir fluids through annuli defined by the first and second tubing strings and defined by the casing and the first tubing string. The bi-flow connector is configured to allow simultaneous and non-contacting flow of the downward pressured gas and lifted reservoir fluid. | 04-21-2016 |
20160108710 | Plunger lift arrangement - A plunger for extraction of hydrocarbon fluids from a gas well system wherein the plunger is arranged to move upwardly and downwardly in an arrangement of inner tubing within the gas well system. The plunger comprises an elongated housing sleeve having a longitudinally directed bore, an elongated central chamber within the longitudinally directed bore, the central chamber having a plug nestable seat at each end thereof; and a plug displacably arranged within the central chamber so as to seal the bore during travel of the plug in a first direction in the inner tubing, and to permit flow of fluid through the plunger as the plunger travels in a second direction in the inner tubing. | 04-21-2016 |
20160123123 | RECIPROCATING ELECTRICAL SUBMERSIBLE WELL PUMP - A downhole pump system includes a magnetically operated rotary to linear motion converter coupled at a rotary input to a drive source. A reciprocating action positive displacement pump having a reciprocating input thereto is coupled to a linear motion output of the magnetically operated rotary to linear motion converter. An intake of the pump is in fluid communication with a wellbore region and a discharge of the pump is in fluid communication with a well conduit extending to Earth's surface. | 05-05-2016 |
20160130920 | DOWNHOLE PUMPING APPARATUS AND METHOD - An apparatus including a sealing device for sealing a wellbore, a first pump for pumping fluids from a lower wellbore section, a pump drive powered using wellbore gas, a gas inlet for supplying the pump drive with wellbore gas, and a gas outlet for exhausting wellbore gas to an upper wellbore section from the pump drive. The apparatus may further include a second pump for pumping fluids from the upper wellbore section into the lower wellbore section, a vent for venting wellbore gas to the upper wellbore section, and a switch for controlling the pump drive. A method for moving fluids in a wellbore including sealing the wellbore, supplying wellbore gas to a pump drive and driving a first pump with the pump drive. The method may further include driving a second pump with the pump drive and venting the wellbore gas to an upper wellbore section. | 05-12-2016 |
20160138374 | FISSURED SUBSTRATA WATER PUMPING APPARATUS AND METHOD - The present invention provides a fissured substrata water pumping apparatus and methods thereof. The fissured substrata water pumping apparatus includes a water pumping pipe inserted into a drilled hole under a roadway floor; one or more unidirectional water-blocking plates configured inside the water pumping pipe; a servo pump; and an annular drainage siphon having a first end connected to an upper end of the water pumping pipe, and a second end connected to an inlet end of the servo pump through a valve. | 05-19-2016 |
20160251946 | METHOD AND SYSTEM FOR OPTIMIZING WELL PRODUCTION | 09-01-2016 |