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| Number | Title | Issue Date |
| 8146661 | Cryogenic treatment of gas Systems and methods of treating a gas stream are described. A method of treating a gas stream includes cryogenically separating a first gas stream to form a second gas stream and a third stream. The third stream is cryogenically contacted with a carbon dioxide strea... | 04/03/2012 |
| 8025100 | Method and device for compressing a multiphase fluid The invention relates to a method for increasing the pressure of a liquid/gas multiphase fluid, and a method for compressing a gaseous fluid, comprising: (b1) entrainment of the gaseous fluid using a motive liquid, to obtain a pressurized mixture of gas and m... | 09/27/2011 |
| 8006757 | Flow control system and method for downhole oil-water processing A technique is provided for processing well fluid downhole. The technique utilizes equipment for separating a well fluid downhole into a water component and an oil component. The separation of water and oil can be controlled by selecting an appropriately sized flow ... | 08/30/2011 |
| 7963328 | Process and apparatus for release and recovery of methane from methane hydrates A process and system for release and recovery of methane from subterranean methane hydrate deposits in which heated CO2 is used to displace methane from the methane hydrate deposits and a portion of the displaced methane is routed to a combustion device p... | 06/21/2011 |
| 7866387 | Packer variable volume excluder and sampling method therefor A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudin... | 01/11/2011 |
| 7854261 | Method and an apparatus for separation and injection of water from a water- and hydrocarbon-containing outflow down in a production well A method and apparatus of separating, in a production well, water from a water- and hydrocarbon-containing production flow emanating from at least one surrounding production formation; and also of injecting, in the production well, a resulting water-containing liqui... | 12/21/2010 |
| 7814976 | Flow control device and method for a downhole oil-water separator A downhole device having an oil/water separator having a well fluid inlet, an oil stream outlet conduit, and a water stream outlet conduit; a removable flow-restrictor located in at least one of the water stream outlet conduit or the oil stream outlet conduit. ... | 10/19/2010 |
| 7798217 | Apparatus for separating a mixture of liquids of differing specific gravities in a wellbore An apparatus for separating a mixture of liquids of differing specific gravities in a wellbore is disclosed along with a method of installation and operation thereof. This device separates water from hydrocarbons prior to hydrocarbon extraction in order to decrease ... | 09/21/2010 |
| 7677308 | Gas separator A combination liquid and gas separator and jetting tool includes a housing containing a rotatable drum, a stator in the inlet end of the housing for swirling a liquid/gas mixture, a rotor attached to the drum for rotation by the mixture; whereby the gas and liquid a... | 03/16/2010 |
| 7673684 | ESP/separator assembly and method An ESP/separator assembly (10) is positioned downhole in a well on a tubular string (18) to pump downhole fluids to the surface. The assembly includes an electric submersible pump (12) and an electrically powered motor (20) positioned bel... | 03/09/2010 |
| 7650938 | Residential in-well internal water aerator A Residential In-well Internal Water Aerator for reducing/eliminating iron, Hydrogen sulfide, and radon gas is a device that hangs within the well casing. Its support is achieved by the well cap. It is capable of degassing hydrogen sulfide and radon gas and precipit... | 01/26/2010 |
| 7610961 | Downhole separation of oil and water A well for producing oil from an underground formation, comprises a vertical section extending from the surface to a depth below the oil-producing formation; a sidetrack or perforated interval (production zone) extending from the vertical section into the oil-produc... | 11/03/2009 |
| 7607479 | Three phase downhole separator apparatus and process Three phase separator systems for separating mixtures downhole are provided that utilize fluid isolation devices or packers to allow sections of casing to separate water, oil, and gas through gravity separation. By utilizing two or more vertical sections of a downho... | 10/27/2009 |
| 7527095 | Method of creating a zonal isolation in an underground wellbore A method of creating a zonal isolation above a target zone in an underground wellbore comprises: inserting a slurry injection tubing into the wellbore; arranging within an annular space surrounding said tubing an p... | 05/05/2009 |
| 7431084 | Production of hydrogen from underground coal gasification A system of obtaining hydrogen from a coal seam by providing a production well that extends into the coal seam; positioning a conduit in the production well leaving an annulus between the conduit and the coal gasification production well, the conduit having a wall; ... | 10/07/2008 |
| 7389816 | Three phase downhole separator process Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole. ... | 06/24/2008 |
| 7377336 | Modular pressure control and drilling waste management apparatus for subterranean borehole A modularly segmented apparatus for precise borehole pressure control, removing waste from borehole fluid, and recirculating the cleaned borehole fluid includes a pressure control section, a gas separator section, and a waste management section. In the pressure cont... | 05/27/2008 |
| 7370701 | Wellbore completion design to naturally separate water and solids from oil and gas A wellbore completion design is provided, which creates a convective flow action that separates water and sand from hydrocarbons during production of the hydrocarbons from a subterranean formation. A deviated section of the wellbore creates the desired effect. The w... | 05/13/2008 |
| 7370697 | Thrust section wear preventor A thrust section for use above a motor preferably includes a housing, a thrust shaft, a thrust runner connected to the thrust shaft, a thrust bearing connected to the housing, and a motor lead guard. The motor is preferably positioned above a pump assembly. The thru... | 05/13/2008 |
| 7363983 | ESP/gas lift back-up A well production system has a string of production tubing with a junction having two legs. A first leg is sealed to the casing by a packer located above well perforations. A submersible pump assembly is secured to a second leg, the pump having an intake in the tubi... | 04/29/2008 |
| 7363769 | Electromagnetic signal transmission/reception tower and accompanying base station employing system of coaxial-flow heat exchanging structures installed in well bores to thermally control the environment housing electronic equipment within the base station An electromagnetic signal transmission/reception tower and accompanying base station housing sensitive electronic equipment within an environment that is thermally controlled by a system employing a plurality of coaxial-flow heat exchanging structures installed in a... | 04/29/2008 |
| 7357186 | Recirculation gas separator A submersible pumping system includes a pump, a motor that drives the pump and a separator assembly. The separator assembly is for separating gas from the fluid and includes an intake and a vent above the intake. Fluid enters the separator assembly at the intake and... | 04/15/2008 |
| 7350597 | Drilling system and method A drilling system for drilling a bore hole into an earth formation, the bore hole having an inside wall. A drill string reaches into the bore hole from a surface, leaving a drilling fluid return passage between the drill string and the bore hole inside wall. A botto... | 04/01/2008 |
| 7347059 | Coaxial-flow heat transfer system employing a coaxial-flow heat transfer structure having a helically-arranged fin structure disposed along an outer flow channel for constantly rotating an aqueous-based heat transfer fluid flowing therewithin so as to improve heat transfer with geological environments A coaxial-flow heat transfer system for installation in a geological environment and facilitating the transfer of heat energy between an external heat energy producing system and the geological environment. In the coaxial-flow heat transfer system, aqueous-based hea... | 03/25/2008 |
| 7338545 | Apparatus for separating liquid from a process gas stream of an electrochemical cell stack A liquid separator includes a housing, a separation chamber disposed within the housing, a drain, an inlet channel, a swirler disposed within the inlet channel, and an outlet channel. The drain has a drain passageway for draining liquid from the separation chamber. ... | 03/04/2008 |
| 7326393 | Process for the conversion of polysulfanes The invention provides a process for the removal of polysulfanes from gas streams formed during H2S synthesis. ... | 02/05/2008 |
| 7320364 | Inhibiting reflux in a heated well of an in situ conversion system Certain embodiments provide a method for treating a subsurface formation. The method includes using heaters to form a heated portion of the subsurface formation. A production conduit is used to direct formation fluid in a vapor phase from the heated portion of the s... | 01/22/2008 |
| 7318849 | Cyclonic fluid separator equipped with adjustable vortex finder position A cyclonic fluid separator for separating one or more condensable components, such as water, and/or solids, such as smoke or sand particles, from a fluid mixture has a tubular housing having a fluid inlet section in which the fluid mixture is accelerated to a supers... | 01/15/2008 |
| 7311765 | Energy and/or mass exchange apparatus having an integrated fluid separator A liquid separator configured to separate liquid from a fluid stream. The separator includes a housing, a separation chamber disposed within the housing, a drain having a drain passageway for draining liquid from the separation chamber, an inlet chamber configured t... | 12/25/2007 |
| 7290607 | Device for the separation of the gas phase from a mixture of fluid/gas for use in hydrocarbons producing and injection wells An apparatus for separating the gaseous phase from a mixture of fluids used during the subsurface intervention in production or injection wells. The device includes a main pipe (T) provided externally with a helix (E) having a longitudinal opening (F) whose edge (B)... | 11/06/2007 |
| 7290606 | Inflow control device with passive shut-off feature Devices and methods for control flow of formation fluids respect to one or more selected parameter relating to the wellbore fluid. In one embodiment, a flow control device for controlling fluid flow into the production tubular uses a flow restriction member that is ... | 11/06/2007 |
| 7287597 | Device for improving oil and gas recovery in wells A device for improving recovery of hydrocarbons through a well is provided. The device creates, regulates and maintains a calculated bottomhole pressure at a desired level and creating above the device a two-phase gas-liquid homogenous flow for efficient lifting of ... | 10/30/2007 |
| 7281590 | Environmentally friendly method for generating energy from natural gas The invention relates to an environmentally friendly method for generating energy from natural gas. Through the combustion of the natural gas with a mixture comprising substantially oxygen and CO2, a number of advantages are achieved with regard to the em... | 10/16/2007 |
| 7279052 | Method for hydrate plug removal A method for removal of deposits such as hydrate plugs from a pipeline is provided including inserting a thruster pig connected to a return flow line into the pipeline The pig is then advanced forward into the pipeline by pumping a thrusting fluid into an annulus be... | 10/09/2007 |
| 7275592 | Oil well pump apparatus An oil well pumping apparatus for pumping oil from a well to a wellhead provides a tool body that is sized and shaped to be lowered into the production tubing string of the oil well. A working fluid is provided that can be pumped into the production tubing. A prime ... | 10/02/2007 |
| 7270186 | Downhole well pump The pump and pump system of the present invention is designed to remove liquids, gas, sand and coal fines from gas and/or oil well bores. There is a need in the oil and gas industry to develop a more efficient operating pump that is capable of operating in wells tha... | 09/18/2007 |
| 7261766 | Supersonic fluid separation enhanced by spray injection The separation of liquid and/or solid components from a multiphase fluid stream passing through a supersonic fluid separator is enhanced by injecting a surface active agent into the fluid stream passing through the separator. Preferably the spray is injected via an ... | 08/28/2007 |
| 7255167 | Three phase downhole separator process Three Phase Downhole Separator Process (TPDSP) is a process which results in the separation of all three phases, (1) oil, (2) gas, and (3) water, at the downhole location in the well bore, water disposal injection downhole, and oil and gas production uphole. ... | 08/14/2007 |
| 7252141 | Groundwater sampling device A groundwater sampling and pumping device and system for withdrawing groundwater from a well. The device includes a hollow outer housing having water inlet ports formed through a bottom thereof and a hollow inner housing sized to be positioned coaxially within the o... | 08/07/2007 |
| 7249634 | Apparatus for production in oil wells An apparatus uses at least one injection pump (9) positioned in proximity to an undersea petroleum well (10) to provide hydraulic fluid for hydraulic pumping equipment positioned in the bottom of the well, in order to cause a flow of produced oil. The ... | 07/31/2007 |
