| 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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| 05/05/2010 | EP2181247A1 Stealth orifice |
| 05/05/2010 | EP2181240A1 Centering structure for tubular member and method of making same |
| 05/05/2010 | CN201449554U Energy-saving control box for oil extractor |
| 05/05/2010 | CN201448413U Anti-leakage speed reducer |
| 05/05/2010 | CN201448100U Automatic control device for down-hole flow of water injection well |
| 05/05/2010 | CN201448099U Full welding type integral screen tube with double wire windings |
| 05/05/2010 | CN201448098U Oil pump unit employing new energy source |
| 05/05/2010 | CN201448097U Novel beam balance reconnecting device |
| 05/05/2010 | CN201448096U Offset type crank device |
| 05/05/2010 | CN201448095U Special energy-saving control cabinet for oil extractor |
| 05/05/2010 | CN201448094U Beamless high-efficient and energy-saving pumping unit |
| 05/05/2010 | CN201448093U Vertical oil pumping machine movable device |
| 05/05/2010 | CN201448092U Surface drive unit of disc brake |
| 05/05/2010 | CN201448091U Ground driving device of multiple platform hydraulic driving screw pumps |
| 05/05/2010 | CN1934333B Method of injecting lift gas into a production tubing of an oil well and gas lift flow control device for use in the mehtod |
| 05/05/2010 | CN1906377B Expander system for incremental expansion of a tubular element |
| 05/05/2010 | CN1676870B Method for extracting oil and gas by convection heating of oil shale |
| 05/05/2010 | CN1608168B Aqueous elasticoviscous fracturing fluid and hydrocarbon collection method using the same |
| 05/05/2010 | CN1606654B Aqueous viscoelastic fluid and method for using the same to recover hydrocarbon |
| 05/05/2010 | CN101701517A Oil and gas well structure facilitating pulling out downhole filter pipe column and method for pulling out downhole filter pipe |
| 05/05/2010 | CN101701516A Staggered automatic-seam-washing sand-controlled sieve tube |
| 05/05/2010 | CN101701515A Rodless oil extraction system driven by underground rotation motor |
| 05/05/2010 | CN101701513A Drilling-plug free tubular column with sand control and well cementation for open-hole horizontal well |
| 05/05/2010 | CN101701510A DN80X6 high-voltage thermal expansion movable pipeline |
| 05/05/2010 | CN101031824B Method and system for determining hydrocarbon properties |
| 05/05/2010 | CA2643251A1 Hydrocarbon fluid compositions and methods for using same |
| 05/04/2010 | US7709421 Microemulsions to convert OBM filter cakes to WBM filter cakes having filtration control |
| 05/04/2010 | US7709420 Organophilic clays and methods for the preparation and use thereof |
| 05/04/2010 | US7708077 Retrieval of bottom hole assembly during casing while drilling operations |
| 05/04/2010 | US7708076 Method of using a drill in sand control liner |
| 05/04/2010 | US7708073 Heat generator for screen deployment |
| 05/04/2010 | US7708069 Method to enhance proppant conductivity from hydraulically fractured wells |
| 05/04/2010 | US7708068 Gravel packing screen with inflow control device and bypass |
| 05/04/2010 | US7708065 inoculation of reservoirs; anaerobic; bioremediation; denitrification |
| 05/04/2010 | US7708059 Subsea well having a submersible pump assembly with a gas separator located at the pump discharge |
| 05/04/2010 | CA2583105C Aqueous alcohol well treatment fluid and method of using the same |
| 05/04/2010 | CA2546089C Well operating elements comprising a soluble component and methods of use |
| 05/04/2010 | CA2515353C Wellbore treatment fluid selection interactive computer system |
| 05/04/2010 | CA2416645C Combined liner and matrix system |
| 05/03/2010 | CA2747045A1 Passive heating assisted recovery methods |
| 04/30/2010 | CA2681694A1 Valve rod guide |
| 04/30/2010 | CA2674223A1 Reliable sleeve activation for multi-zone frac operations using continuous rod and shifting tools |
| 04/29/2010 | WO2010048168A2 Flow regulator assembly |
| 04/29/2010 | WO2010048077A1 Shunt tube flowpaths extending through swellable packers |
| 04/29/2010 | WO2010047708A1 Equalizing injection tool |
| 04/29/2010 | WO2010047612A1 Fracture clean-up by electro-osmosis |
| 04/29/2010 | WO2010046818A1 Toe-to-heel gravel packing methods |
| 04/29/2010 | WO2010046695A1 Downhole tool of high pressure operating cycle capability |
| 04/29/2010 | WO2010046562A2 Integrated sequence of methods for extracting and processing extra-heavy or bituminous crude oil with co2 tapping |
| 04/29/2010 | WO2009009445A3 Heated fluid injection using multilateral wells |
| 04/29/2010 | US20100105975 Nuclear Assisted Hydrocarbon Production Method |
| 04/29/2010 | US20100101808 Method for producing crude oil |
| 04/29/2010 | US20100101801 Downhole well pump |
| 04/29/2010 | US20100101800 Subsea Completion with a Wellhead Annulus Access Adapter |
| 04/29/2010 | US20100101799 System, method and apparatus for a modular production tree assembly to reduce weight during transfer of tree to rig |
| 04/29/2010 | US20100101798 Downhole systems and methods for deliquifaction of a wellbore |
| 04/29/2010 | US20100101796 Hydrocarbon-based fracturing fluid compositions, methods of preparation and methods of use |
| 04/29/2010 | US20100101795 Hydraulic fracturing of subterranean formations |
| 04/29/2010 | US20100101794 Heating subsurface formations with fluids |
| 04/29/2010 | US20100101791 Enhanced crude oil recovery method and system |
| 04/29/2010 | US20100101790 Cyclic steam stimulation method with multiple fractures |
| 04/29/2010 | US20100101789 Engineered, Scalable Underground Storage System and Method |
| 04/29/2010 | US20100101788 Multi-Point Chemical Injection System |
| 04/29/2010 | US20100101787 Using An Acoustic Ping and Sonic Velocity to Control an Artificial Lift Device |
| 04/29/2010 | US20100101785 Hydraulic System and Method of Monitoring |
| 04/29/2010 | US20100101784 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation |
| 04/29/2010 | US20100101783 Using self-regulating nuclear reactors in treating a subsurface formation |
| 04/29/2010 | US20100101782 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 04/29/2010 | US20100101778 Expansion joint with communication medium bypass |
| 04/29/2010 | US20100101772 Communication system and method in a multilateral well using an electromagnetic field generator |
| 04/29/2010 | DE112008001760T5 Druckausgleicher in einer elektrischen Tauchpumpenanordnung mit Druckkammer, der zwei Druckbarrieren aufweist Pressure compensator in an electric submersible pump assembly with pressure chamber, which has two pressure barriers |
| 04/29/2010 | CA2824402A1 Shunt tube flowpaths extending through swellable packers |
| 04/29/2010 | CA2741084A1 Fracture clean-up by electro-osmosis |
| 04/29/2010 | CA2739772A1 Integrated sequence of methods for extracting and processing extra-heavy or bituminous crude oil with co2 tapping |
| 04/29/2010 | CA2739423A1 Shunt tube flowpaths extending through swellable packers |
| 04/28/2010 | EP2180140A2 Active seismic monitoring of fracturing operations |
| 04/28/2010 | EP2180139A2 Method for producing crude oil |
| 04/28/2010 | EP2180138A2 Injection of gas to increase the production of crude oil sources |
| 04/28/2010 | EP2179132A1 A method to enhance proppant conductivity from hydraulically fractured wells |
| 04/28/2010 | EP2179131A1 Viscous oil inflow control devices for equalizing screen flow |
| 04/28/2010 | EP2179130A1 Method and apparatus for monitoring offshore contamination |
| 04/28/2010 | EP2179129A2 Methods and compositions for preventing high density well completion fluid loss |
| 04/28/2010 | EP2179064A1 Method for identification of novel anaerobic denitrifying bacteria utilizing petroleum components as sole carbon source |
| 04/28/2010 | EP2179063A1 Application of anaerobic denitrifying bacteria utilizing petroleum components as sole carbon source for oil recovery |
| 04/28/2010 | EP1368188B1 Composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same |
| 04/28/2010 | CN201443508U Screw pump upper portion insulating polished rod |
| 04/28/2010 | CN201443504U Supporting-type under-pump oil draining device |
| 04/28/2010 | CN201443503U Elevator for rod-type oil pump |
| 04/28/2010 | CN201443498U Pumping-assistance pump of oil well |
| 04/28/2010 | CN201443497U Tubular oil well pump |
| 04/28/2010 | CN201443496U Anti- release oil pump for plunger |
| 04/28/2010 | CN201443495U Anticorrosion and abrasion-resistant oil-well pump |
| 04/28/2010 | CN201443494U Double-input single-output oil-submersible screw pump oil production plant |
| 04/28/2010 | CN201443386U Automatic monitoring device for cantilever-type oil pumping unit |
| 04/28/2010 | CN201443385U Large-diameter oil-gas separating gas anchor |
| 04/28/2010 | CN201443384U Fast connecting device of steam-injecting pipeline |
| 04/28/2010 | CN201443383U Land disposal flash evaporation dewaterer for produced liquid by steam-assisted gravity drainage |
| 04/28/2010 | CN201443382U Downhole dosing device |
| 04/28/2010 | CN201443381U Water injection well filter |
| 04/28/2010 | CN201443380U Anti-scaling high pressure and constant flow complete set of device capable of distributing water automatically |