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| Number | Title | Issue Date |
| 8181706 | 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 li... | 05/22/2012 |
| 8136601 | Power lift generator A device for increasing the production flow in a production tubing, where the production tubing has at least one inlet or port for adding a fluid medium, adds the fluid medium through the at least one inlet or port at an angle α between 90 and 0 degrees with a long... | 03/20/2012 |
| 8122966 | Total in place hydrocarbon recovery by isolated liquid and gas production through expanded volumetric wellbore exposure + Higher volumetric hydrocarbon exposed original or restored by miscible gas injection, solution gas saturated oil is recovered through enlarged expandable liner, sand screened wellbores by controlled wellbore to formation pressure maintained above recovering oils cri... | 02/28/2012 |
| 8118103 | 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 tubul... | 02/21/2012 |
| 8113288 | System and method for optimizing production in gas-lift wells The system and method are utilized to control the flow of crude oil, natural gas, and field produced salt water to optimize production from an oil or gas well. The invention is suitable for use with a well that utilizes gas-lift as artificial lift. The equipment is ... | 02/14/2012 |
| 8100184 | 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 lif... | 01/24/2012 |
| 8079418 | Plug in pump for inverted shroud assembly The pump can be utilized in gassy oil wells to prevent gas slugs from locking the electrical submersible pump. A shroud assembly is provided with a bottom that can be fixed to the top of a seal section connected to the top of a motor. Additional lengths of shroud ca... | 12/20/2011 |
| 8069924 | Well jet device and the operating method thereof A well jet device for testing oil-gas wells comprises a body provided with bypass windows and an insert provided with a jet pump. The insert has channels and a mounting seat embodied therein, carrying a sealing unit with a channel for a cable and well instruments fi... | 12/06/2011 |
| 8056636 | Jet pump with foam generator A jet pumping system for use in a wellbore drilled for the production or petroleum products includes a packer disposed within the wellbore, an intake pipe extending through the packer, an injection system configured to inject pressurized gas into the wellbore and a ... | 11/15/2011 |
| 8028754 | 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 ca... | 10/04/2011 |
| 8020624 | Submersible pumping system A technique is provided for pumping fluids in a subterranean wellbore. A submersible pumping system can be deployed in a wellbore for moving desired fluids within the wellbore. The pumping system energizes the desired fluid movement by reciprocating a working fluid ... | 09/20/2011 |
| 7984766 | 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... | 07/26/2011 |
| 7971650 | Electric submersible pumps A method of pumping wellbore fluid, comprising the steps of: installing an electric submersible pump in a wellbore; and operating the pump at more than 4,500 rpm to pump the wellbore fluid. Pumping in this manner provides a number of advantages in use in that the re... | 07/05/2011 |
| 7954551 | 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 ... | 06/07/2011 |
| 7878251 | 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 b... | 02/01/2011 |
| 7823647 | Process for foaming a wet hydrocarbon composition A composition of a wet hydrocarbon foaming agent including a siloxane can foam wet hydrocarbons. The siloxane wet hydrocarbon foaming agent advantageously foams hydrocarbons that have as little as 5 percent water present and those hydrocarbons having as much as 90 p... | 11/02/2010 |
| 7819197 | Wellbore collection system A system, apparatus and method are useful for lifting reservoir fluid in a gas-producing wellbore through the application of a differential between pressure of the gas in the wellbore's gas-production conduit a lower end of which is disposed in reservoir fluid accum... | 10/26/2010 |
| 7806188 | Methods and apparatus for optimizing well production Embodiments of the present invention generally relates to methods and apparatus for operating an artificial lift well. In one embodiment, the well is operated between an on cycle and an off cycle. Preferably, the off cycle is determined by detecting an increase in t... | 10/05/2010 |
| 7802625 | 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 ca... | 09/28/2010 |
| 7793727 | 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 valv... | 09/14/2010 |
| 7784549 | Self-propelled swabbing device and method A self-propelled swabbing device and method for use in removing liquid to surface from within an installed wellbore casing. The device includes a longitudinally extending plunger sized to fit within said wellbore casing, and having an internal surface defining an in... | 08/31/2010 |
| 7766085 | 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 ... | 08/03/2010 |
| 7717181 | 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... | 05/18/2010 |
| 7717182 | Artificial lift with additional gas assist Well pumping of fluids having low hydrostatic pressure is provided through a combination of jet pumping and gas assisted lifting. A jet pump is located in a borehole in a producing zone of a well, and a source of gas is introduced into the fluid returning from the p... | 05/18/2010 |
| 7703537 | Recovery of hydrocarbons A method of bringing hydrocarbons from a well into production by introducing encapsulated bubbles into the fluid in the production string to reduce the hydrostatic pressure holding the hydrocarbons in the reservoir. For reservoirs where the reservoir pressure has be... | 04/27/2010 |
| 7703536 | Gas assisted lift system A gas lift system for use in marginal well and small diameter production tubing is disclosed. The system uses compressed natural (produced) gas to lift formation fluids thereby enhancing produced gas. Incorporated in the system is a plurality of differential pressur... | 04/27/2010 |
| 7658229 | Gas lift chamber purge and vent valve and pump systems The present invention is directed to producing fluid from an oil or gas well by means of a combination intermittently filled down hole chamber accumulation device and a connected upper continuous gas lift flow system, separated by an inline one-way reverse flow chec... | 02/09/2010 |
| 7647975 | Gas lift valve assembly An apparatus that is usable with a well includes a gas lift valve and an isolation member. The gas lift valve includes a valve element that is located between an annulus and a passageway of a tubing. The valve element is adapted to selectively open and close to cont... | 01/19/2010 |
| 7644770 | Downhole gas compressor A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The operator computes a frictional pressure drop due to friction of the gas flowing through the production tubing to the surface. A packer is ... | 01/12/2010 |
| 7621339 | Downhole production and injection pump system A downhole pump, positionable in a fluid column that is substantially separated into an oil portion and a water portion, for selectively lifting the oil to a surface and injecting the water into an injection zone includes a housing having a top wall, and a bottom wa... | 11/24/2009 |
| 7594543 | Method and apparatus for production in oil wells The present invention relates to an apparatus and method for production from oil wells. More particularly, the present invention relates to an apparatus that utilizes at least one injection pumping device (9), positioned in the interior of a petroleum well ( | 09/29/2009 |
| 7588086 | Ported velocity tube for gas lift operations A gas lift apparatus for use with a well bore sealing device includes a tubing string coupled to the well bore sealing device, a gas inlet port in the tubing string extending between the well bore above the sealing device and a flow bore in the tubing string to prov... | 09/15/2009 |
| 7565933 | 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. U... | 07/28/2009 |
| 7549478 | Well jet device and the operating method thereof Well jet device comprises a packer mounted on a pipe string provided with a central channel embodied therein and jet pump. The pump has channels supplying a working medium to a nozzle, removing the media mixture and supplying a medium pumped from the well, respectiv... | 06/23/2009 |
| 7549477 | System and method for unloading water from gas wells A system, apparatus and method are useful for lifting water in a gas-producing wellbore through the application of a differential between pressure of the gas in the wellbore's gas-production conduit and pressure of the wellbore annulus. The apparatus comprises a mod... | 06/23/2009 |
| 7510012 | Bubble breaker assembly A method and system are disclosed for dispersing gas bubbles in a multiphase mixture in a production tubing in an crude oil production well or in a riser connected to such a well, by means of one or more bubble breaker assemblies in which a plurality of orifices are... | 03/31/2009 |
| 7506690 | Enhanced liquid hydrocarbon recovery by miscible gas injection water drive In distinct embodiments, miscible gas is injected directly into crude oil within its formation, entering into solution within it at optimum pressures, adding desired solution gas saturation, increasing its mobility and fluidity. This mobile solution gas saturated oi... | 03/24/2009 |
| 7500525 | Gas well de-watering apparatus and method A system and method for systematically and economically recovering formation liquids from the bottom of a petroleum well are disclosed. In a preferred embodiment, the system and method are passive in that they utilize the existing formation pressure of the well to r... | 03/10/2009 |
| 7490675 | Methods and apparatus for optimizing well production Embodiments of the present invention generally relates to methods and apparatus for operating an artificial lift well. In one embodiment, the well is operated between an on cycle and an off cycle. Preferably, the off cycle is determined by detecting an increase in t... | 02/17/2009 |
| 7475731 | Sand plunger A plunger mechanism comprising radial peripheral holes extending outwardly from a center core to an outer surface through which a downhole gas may pass to clear an obstruction on the outer surface of the plunger, thereby enabling a self-cleaning action. ... | 01/13/2009 |
