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| Number | Title | Issue Date |
| 8171998 | System for controlling hydrocarbon bearing zones using a selectively openable and closable downhole tool One or more embodiments of a selectively openable and closable downhole tool. The wherein, the downhole tool can include an outer tubular member having an annulus port formed therethrough. The downhole tool can also include an inner tubular member. The inner tubular... | 05/08/2012 |
| 8171997 | High velocity string for well pump and method for producing well fluid A method of producing a well fluid includes securing a motor to a string of outer tubing and lowering the outer tubing and motor into the well. A rotary pump is secured to a string of inner tubing and lowered into the outer tubing. The pump stabs into cooperative en... | 05/08/2012 |
| 8141646 | Device and method for gas lock detection in an electrical submersible pump assembly A device and method can detect, and also break, an occurrence of gas lock in an electrical submersible pump assembly in a well bore based upon surface or downhole data without the need for operator intervention. To detect an occurrence of gas lock, an instantaneous ... | 03/27/2012 |
| 8127855 | Artificial lift system for stripper and marginal wells A fluid extraction system and method for the removal of fluid from subterranean wells. The system comprising: an upper extraction unit; an extraction container; a valve assembly engaged to the extraction container; a drainage tray engaged to the upper extraction uni... | 03/06/2012 |
| 8100183 | Reinforced polymeric siphon tubes A siphon tube having a polymeric material into which at least one continuous reinforcing agent is embedded, and wherein the at least one reinforcing agent runs substantially the length of the siphon tube. The polymer material can be one or more polymers selected fro... | 01/24/2012 |
| 8066077 | Electrical submersible pump and gas compressor A wellbore fluid production system that is disposable in a wellbore comprising a separator, a pump, a compressor, and a motor. The separator segregates the gas and liquid and delivers the gas to the compressor inlet and the liquid to the pump inlet. The pump pressur... | 11/29/2011 |
| 8056635 | Split stream oilfield pumping systems A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well surface to the wellbore; providing a dirty stream including a solid m... | 11/15/2011 |
| 8051912 | Armored flat cable signalling and instrument power acquisition Measurement and/or control units located within a borehole are inductively coupled to a flat three phase power cable segment without piercing the armor around the cable. For drawing power from the cable, C-shaped, L-shaped or straight core(s) with winding(s) around ... | 11/08/2011 |
| 8028753 | System, method and apparatus for controlling the flow rate of an electrical submersible pump based on fluid density An electrical submersible pump that regulates pump flow rate based on sensor measurements of the fluid is disclosed. The sensor measures a property of the fluid being processed. The sensor may be located at the intake, discharge or other area of the pump. The sensor... | 10/04/2011 |
| 8011437 | Wellbore method and apparatus for completion, production and injection A method associated with the production of hydrocarbons comprising a joint assembly comprising a main body portion having primary and secondary fluid flow paths, wherein the main body portion is attached to a load sleeve assembly at one end and a torque sleeve assem... | 09/06/2011 |
| 8006766 | Method and apparatus for controlling the speed of a pump in a well A method and apparatus for controlling a speed of a pump operating in a well. A first step involves monitoring a production flow rate of fluids produced from the well. A second step involves controlling the speed of the pump with reference to the production flow rat... | 08/30/2011 |
| 7980314 | Gas restrictor for pump An inlet apparatus for a well pump. ... | 07/19/2011 |
| 7971648 | Flow control system utilizing an isolation device positioned uphole of a liquid removal device A flow control system includes a pump positioned in a well uphole of a producing formation to remove liquid from the well. An isolation device is positioned uphole of the pump such that the pump is between the isolation device and the producing formation, the isolat... | 07/05/2011 |
| 7971647 | Apparatus and method for raising a fluid in a well An apparatus, and a method which uses the apparatus, for raising a fluid from a lower region to a higher region of an at least partially cased well. The apparatus includes: a tubing string; a contacting structure at the upper end of the tubing string for engaging a ... | 07/05/2011 |
| 7958939 | Composition and method for producing a pumpable hydrocarbon hydrate slurry at high water-cut Embodiments of the invention relate to a process for providing a pumpable hydrate slurry in a hydrocarbon pipeline fluid mixture having a water-cut greater than about 50 volume percent. In one or more embodiments the process comprises treating the fluid mixture with... | 06/14/2011 |
| 7950465 | System for dewatering boreholes by means of alternative cycles of vacuum and exhaust, based on the principle of pneumatic displacement A system of de-watering boreholes by alternating cycles of aspiration and expulsion based on pneumatic displacement, includes a double hose to be introduced into a borehole. The double hose includes a flexible outer hose and a flexible inner hose separated by an ann... | 05/31/2011 |
| 7934563 | Inverted drainholes and the method for producing from inverted drainholes A method and apparatus for creating inverted laterals or drainholes for producing from a subterranean reservoir including the steps of lowering, positioning and securing a reverse whipstock in a wellbore. A tube is secured from the surface to a pull tube which exten... | 05/03/2011 |
| 7926570 | Method and apparatus for preventing spillage or loss of drill fluids A well bore fluid recovery system and method is disclosed for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for preventing fluids from being spilled when casing is being finished fo... | 04/19/2011 |
| 7921920 | Anti-coning well intake A well intake with an anti-coning end portion provides for withdrawal of fluid hydrocarbons, such as oil and gas, from pockets that contain an underlying layer of water. The anti-coning end portion may include a tube having an upwardly turned or upwardly facing end ... | 04/12/2011 |
| 7878250 | System and method for automating or metering fluid recovered at a well Disclosed herein are methods, apparatus and systems for automating or metering fluid recovered at a well. According to one example, a system is described for automating the fluid recovery of oil wells using a pump jack or oil extractor. A communications device is in... | 02/01/2011 |
| 7874367 | Low clearance downhole pump A pump has a housing having a top plate and a bottom plate and a shaft slidingly extending through an aperture in the top plate. A piston is connected to the shaft. The piston separates a volume within the housing into a first stage chamber defined in the housing be... | 01/25/2011 |
| 7845414 | In situ conversion of heavy hydrocarbons to catalytic gas A method of producing natural gas from a heavy hydrocarbon-containing subterranean formation includes: placing a catalyst having at least one transition metal into the formation, injecting an anoxic stimulation gas into the formation, and collecting the natural gas ... | 12/07/2010 |
| 7845413 | Method of pumping an oilfield fluid and split stream oilfield pumping systems A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well surface to the wellbore; providing a dirty stream including a solid m... | 12/07/2010 |
| 7836957 | In situ conversion of subsurface hydrocarbon deposits to synthesis gas A method for producing synthesis gas from underground hydrocarbon deposits is described. Oxygen and water are reacted with the hydrocarbon deposit under conditions conducive to the production of carbon monoxide and hydrogen. The method is applicable to oil reservoir... | 11/23/2010 |
| 7819196 | Method for operating actuator and an actuator device for use in drainage pipe used for producing oil and/or gas A method and a device in connection with an actuator intended for use in connection with a fluid flow or fluid reservoir, in particular an actuator that is designed to be used in connection with a drainage pipe (8) for the production of oil and/or gas in an o... | 10/26/2010 |
| 7810572 | Method for delivering a multi phase mixture and pump installation The object of the invention is to improve delivery of the multi-phase mixture, in particular hydrocarbons from a well, and to limit the free gas volume. According to the invention, this object is attained in that a partial liquid flow (13) is split off on the... | 10/12/2010 |
| 7762340 | Installation for enhanced oil recovery using water soluble polymers, method for implementing same Installation for enhanced oil recovery comprising in succession: a polymer storage hopper, a grinding device, a dissolution/maturation tank for the dispersed polymer, and a pump for transferring pressurized polymer solution in the pipeline conveying the injection wa... | 07/27/2010 |
| 7762339 | Apparatus and method for controlling the speed of a pump in a well A controller for controlling the pump unit of an oil well includes a sensor having a first and second probe for placement in the flow of oil from the well bore. Each of the probes contains a heater. A constant power source is selectively connected to one of the heat... | 07/27/2010 |
| 7654330 | Apparatus, methods, and systems for extracting petroleum using a portable coal reformer Apparatus, methods, and systems for extracting oil or natural gas from a well using a portable coal reformer. In one example, the method may include reforming coal by reaction with water to generate driver gas (comprising carbon dioxide and hydrogen gas), and inject... | 02/02/2010 |
| 7644769 | Method of collecting hydrocarbons using a barrier tunnel The present invention relates generally to a method and means of collecting oil from a reservoir overlying a water aquifer or basement rock using a manned tunnel. A manned tunnel is used as a physical barrier to intercept oil and water flowing downward along a forma... | 01/12/2010 |
| 7635030 | Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well An electrical submersible pump (ESP) completion installed in casing perforated for water disposal and production. A packer separates the disposal zone and the production zone. An inverted ESP assembly is located inside of a canister. The ESP and canister are lowered... | 12/22/2009 |
| 7628209 | Tubing driven progressing cavity pump and method of pumping well fluid from a well A progressing cavity well pump system has a stator secured to a string of tubing. A drive head at the surface rotates the tubing and the stator. The pump rotor is held against rotation by an anchor mechanism. The tubing, stator, rotor and anchor mechanism are instal... | 12/08/2009 |
| 7568527 | Method of collecting crude oil and crude oil collection header apparatus The invention includes methods of collecting crude oil and apparatus which collect crude oil. In one implementation, a crude oil collection header apparatus comprises a collection reservoir. A plurality of fluid conduits is connected to feed crude oil to the collect... | 08/04/2009 |
| 7543649 | Method of collecting crude oil and crude oil collection header apparatus The invention includes methods of collecting crude oil and apparatus which collect crude oil. In one implementation, a crude oil collection header apparatus includes a collection reservoir and a plurality of fluid conduits connected to feed crude oil to the collecti... | 06/09/2009 |
| 7543648 | System and method utilizing a compliant well screen A system and method is provided for filtering in a wellbore during various well related operations while limiting the potential for plugging. A well screen is used for filtering particulates from a fluid at a wellbore location. To remove accumulated material and avo... | 06/09/2009 |
| 7537058 | Method for gas production from gas hydrate reservoirs The present invention is directed to using depressurization methods to create mobile fluid zones for producing fluids from a Class 3 hydrate reservoirs through a well. Aspects of the present invention include a two stage method wherein the first stage includes produ... | 05/26/2009 |
| 7533730 | Variable and slow speed pumping unit A pumping unit is provided with a hydraulic drive unit. The drive includes a hydraulic motor attached to a driven sheave that, through reduction gears, drives a drive shaft and crank arm that causes the pumping unit to pump. The speed of the hydraulic motor is contr... | 05/19/2009 |
| 7510011 | Well servicing methods and systems employing a triggerable filter medium sealing composition Well servicing methods and systems are described, in one embodiment comprising installing a tool in a wellbore, the tool comprising a base tubular having a plurality of openings and a longitudinal bore adapted to fluidly connect to a tubular; a jacket tubular having... | 03/31/2009 |
| 7490674 | Dual cylinder lift pump and method of recovering fluids from subsurface formations A pump jack system for reciprocating a pump rod string is made up of a base frame and piston drive cylinders mounted on the base frame with the upper end of the pump rod connected to the cylinder assemblies, the cylinder assemblies being operated in unison by a flui... | 02/17/2009 |
| 7487838 | Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well An electrical submersible pump (ESP) completion installed in casing perforated for water disposal and production. A packer separates the disposal zone and the production zone. An inverted ESP assembly is located inside of a canister. The ESP and canister are lowered... | 02/10/2009 |
