| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 01/13/2010 | CN201381833Y Changeable-moment arm automatic reverse wheel of oil pumping unit |
| 01/13/2010 | CN201381832Y Adjuster for balance block |
| 01/13/2010 | CN201381831Y Disk type brake for belt oil extractor |
| 01/13/2010 | CN101627179A Apparatus and method for controlled deployment of shape-conforming materials |
| 01/13/2010 | CN101624906A Passive pressure increasing and decreasing water distribution method |
| 01/13/2010 | CN101624905A Hydraulic plunger multi-cylinder adjustable injection device |
| 01/13/2010 | CN101624904A Open hole completion well sand resistant pipe string of sidetracking branch well and inserting type acid cleaning filling inner pipe string thereof |
| 01/13/2010 | CN100580249C Depressed vacuum ground oil-absorbing machine |
| 01/13/2010 | CN100580218C Method for enhancing offshore oilfield recovery |
| 01/13/2010 | CN100580217C Boiler flue reclaiming clean-up pouring oil production device |
| 01/12/2010 | US7645380 Microporous diffusion apparatus |
| 01/12/2010 | US7644993 In situ co-development of oil shale with mineral recovery |
| 01/12/2010 | US7644773 Self-conforming screen |
| 01/12/2010 | US7644771 Fluid loss control system and method for controlling fluid loss |
| 01/12/2010 | US7644770 Downhole gas compressor |
| 01/12/2010 | US7644769 Method of collecting hydrocarbons using a barrier tunnel |
| 01/12/2010 | US7644765 Heating tar sands formations while controlling pressure |
| 01/12/2010 | US7644763 Downhole cutting tool and method |
| 01/12/2010 | US7644762 Solid state pump |
| 01/12/2010 | US7644761 Fracturing method for subterranean reservoirs |
| 01/12/2010 | US7644759 Enhancement of flow rates through porous media |
| 01/12/2010 | US7644758 Restrictor valve mounting for downhole screens |
| 01/12/2010 | CA2589798C Methods of stimulating a subterranean formation comprising multiple production intervals |
| 01/12/2010 | CA2566627C Compositions and methods for water control and strengthening unconsolidated formations |
| 01/12/2010 | CA2556648C Non-emulsifying anti-sludge composition for use in the acid treatment of hydrocarbon wells |
| 01/12/2010 | CA2555098C Methods for effecting controlled break in ph dependent foamed fracturing fluid |
| 01/12/2010 | CA2519354C A wellbore apparatus and method for completion, production and injection |
| 01/12/2010 | CA2517883C Full bore lined wellbores |
| 01/12/2010 | CA2412547C Method of transferring fluids through a permeable well lining |
| 01/12/2010 | CA2407983C Radial expansion of tubular members |
| 01/12/2010 | CA2335266C Solids-free viscous fluids |
| 01/11/2010 | CA2637907A1 System, method and apparatus for lifting formation fluids in a wellbore |
| 01/09/2010 | CA2670358A1 Composition of microemulsion and method for advanced recovery of heavy oil |
| 01/07/2010 | WO2010003088A2 Methods for downhole sequestration of carbon dioxide |
| 01/07/2010 | WO2010002841A2 Liquid rod pump |
| 01/07/2010 | WO2010002693A2 Systems and methods for producing oil and/or gas |
| 01/07/2010 | WO2010002460A1 Method for optimizing in-situ bioconversion of carbon-bearing formations |
| 01/07/2010 | WO2010001297A1 Leak-off control agent |
| 01/07/2010 | WO2010001087A2 Apparatus and method for inflow control |
| 01/07/2010 | WO2010001002A1 Novel method for the treatment of rock formations and novel polyampholytes |
| 01/07/2010 | WO2010000736A1 Method of producing hydrocarbon fluid from a layer of oil sand |
| 01/07/2010 | WO2010000729A1 Producing hydrocarbon fluid from a layer of oil sand |
| 01/07/2010 | WO2009131462A3 Gas compression system |
| 01/07/2010 | WO2009120779A3 Low emission power generation and hydrocarbon recovery systems and methods |
| 01/07/2010 | WO2009103971A3 Monitoring downhole production flow in an oil or gas well |
| 01/07/2010 | US20100000926 Device for separation of fluid, in particular oil, gas and water |
| 01/07/2010 | US20100000789 Novel Device And Methods for Firing Perforating Guns |
| 01/07/2010 | US20100000740 Flexible Well Completions |
| 01/07/2010 | US20100000739 Variable buoyancy subsea running tool |
| 01/07/2010 | US20100000737 Methods for downhole sequestration of carbon dioxide |
| 01/07/2010 | US20100000736 Enhanced geothermal systems and reservoir optimization |
| 01/07/2010 | US20100000735 Methods and Compositions for Enhancing Guar Hydration Rates and Performing Guar Derivitization Reactions |
| 01/07/2010 | US20100000734 Controlling Coal Fines in Coal Bed Operations |
| 01/07/2010 | US20100000733 Apparatus and Method for Energy-Efficient and Environmentally-friendly Recovery of Bitumen |
| 01/07/2010 | US20100000732 Method for optimizing IN-SITU bioconversion of carbon-bearing formations |
| 01/07/2010 | US20100000727 Apparatus and method for inflow control |
| 01/07/2010 | US20100000397 High Density Perforating Gun System Producing Reduced Debris |
| 01/07/2010 | US20100000221 Method for producing fuel and power from a methane hydrate bed using a gas turbine engine |
| 01/07/2010 | CA2729802A1 Method for optimizing in-situ bioconversion of carbon-bearing formations |
| 01/07/2010 | CA2729506A1 Producing hydrocarbon fluid from a layer of oil sand |
| 01/07/2010 | CA2729344A1 Method of producing hydrocarbon fluid from a layer of oil sand |
| 01/07/2010 | CA2728801A1 Liquid rod pump |
| 01/07/2010 | CA2727321A1 Method of secondary oil recovery |
| 01/07/2010 | CA2671043A1 Oil-fired frac water heater |
| 01/06/2010 | EP2141323A2 Expanded non-bonded mesh well screen |
| 01/06/2010 | EP2140104A2 Subsea installation and method for separation of liquid and gas |
| 01/06/2010 | EP2140101A2 Cladding method and expansion tool |
| 01/06/2010 | EP2139576A1 Liquid/gas separation device and liquid/gas separation method, in particular for crude oil liquid and gaseous phases |
| 01/06/2010 | EP1284800B1 A method and a system for separating a mixture |
| 01/06/2010 | CN201378743Y High-voltage electricity saving device |
| 01/06/2010 | CN201377556Y Automatic tensioner |
| 01/06/2010 | CN201377418Y Reaction torque releasing device of oil production screw pump |
| 01/06/2010 | CN201377416Y Multi-functional straight line sliding guide sleeve |
| 01/06/2010 | CN201377414Y Sand-control wear pump |
| 01/06/2010 | CN201377315Y Energy saving natural gas and aqueous vapor shunt device |
| 01/06/2010 | CN201377314Y Exhaust oiler of hydraulic system of oil field fracturing equipment |
| 01/06/2010 | CN201377313Y Screw-type injection allocation device |
| 01/06/2010 | CN201377312Y Layered water injection tool |
| 01/06/2010 | CN201377311Y Veneer-type inner ladder-shaped anti-sand sieve tube |
| 01/06/2010 | CN201377310Y Cluster well load counterbalance energy-saving pumping system |
| 01/06/2010 | CN201377309Y Device for adjusting safe suspension of oil pumping unit counterbalance |
| 01/06/2010 | CN201377308Y Hydraulic oil pumping unit |
| 01/06/2010 | CN201377307Y Long annular rack oil extractor |
| 01/06/2010 | CN201377306Y Steel wire rope automatic balance and magnification mechanism of steel wire rope pumping unit |
| 01/06/2010 | CN201377302Y Oil well casing collection device |
| 01/06/2010 | CN201377297Y Precisely-positioned feed rod clip |
| 01/06/2010 | CN101619654A Pulse fracturing sand injector for horizontal wells |
| 01/06/2010 | CN101619653A Expanded non-bonded mesh well screen |
| 01/06/2010 | CN101619652A Selective flow string |
| 01/06/2010 | CN101619651A Swinging block six-bar mechanism oil extractor |
| 01/06/2010 | CN101619650A Gear direct-drive walking beam type oil pumping unit |
| 01/06/2010 | CN100578118C Oil field produced water heat pump technique |
| 01/06/2010 | CN100577983C Gravel filling method |
| 01/06/2010 | CN100577877C Method for synthesizing mannich alkali steel inhibitor mother liquor and steel inhibitor mother liquor |
| 01/05/2010 | US7640993 Method of deploying and powering an electrically driven in a well |
| 01/05/2010 | US7640988 Hydraulically controlled burst disk subs and methods for their use |
| 01/05/2010 | US7640987 Communicating fluids with a heated-fluid generation system |
| 01/05/2010 | US7640982 Method of injection plane initiation in a well |
| 01/05/2010 | US7640981 Scale inhibition method |
| 01/05/2010 | US7640980 Thermal processes for subsurface formations |