| 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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| 04/25/2012 | CN202202849U 多孔径可调式油井放喷油嘴 Multi-aperture adjustable discharge injector wells |
| 04/25/2012 | CN202202848U 一种新型内盲孔复合射孔枪 A new complex within the blind bore guns |
| 04/25/2012 | CN202202847U 侧向进油采油井滤砂器 Lateral production wells into the oil sand filter |
| 04/25/2012 | CN202202846U 抽油机平衡块调节装置 Pumping weights adjusting device |
| 04/25/2012 | CN202202845U 一种井下旋流雾化装置 A downhole swirl atomizer |
| 04/25/2012 | CN202202844U 配有可调节旁通阀的柱塞工具 With an adjustable bypass valve plunger tool |
| 04/25/2012 | CN202202843U 采油井井下管柱 Production wells downhole string |
| 04/25/2012 | CN202202840U 双管安全控制阀 Double-barreled security control valve |
| 04/25/2012 | CN202201693U Tower-type oil sucking machine transferring device |
| 04/25/2012 | CN1912340B 分阶段预测聚合物驱油藏工程综合含水的方法 Phased predict polymer flooding method of comprehensive water reservoir engineering |
| 04/25/2012 | CN102428252A 用于从页岩原位提取油的方法和系统 Method and system for extracting the oil from the shale in-situ |
| 04/25/2012 | CN102428251A Cable suspended pumping system |
| 04/25/2012 | CN102428250A 海底冷却器 Seabed cooler |
| 04/25/2012 | CN102428249A 具有海底冷却器的海底系统及用于清洁海底冷却器的方法 With a subsea coolers subsea systems and methods for cleaning subsea coolers |
| 04/25/2012 | CN102428244A 保护柔性立管的方法及其设备 Protection of flexible risers method and apparatus |
| 04/25/2012 | CN102425446A 一种用于煤矿井下钻孔的气渣分离一体化临抽装置 An integrated gas residue separation for coal mine drilling temporary pumping device |
| 04/25/2012 | CN102425405A 一种油田偏心配水井分层压力测试方法 One kind of oil wells layered eccentric stress testing methods |
| 04/25/2012 | CN102425400A 一种不动管柱实现多层选压的压裂工艺 A non-moving string of multi-tier election pressure fracturing process |
| 04/25/2012 | CN102425399A Method for exploiting oil shale |
| 04/25/2012 | CN102425398A 一种用于微生物驱油的产出液循环处理方法 An output of fluid circulation treatment for microbial flooding |
| 04/25/2012 | CN102425397A 双井筒水平羽状井水力冲刷钻进卸压开采煤层气方法 Double pinnate horizontal wellbore drilling relief wells force scour bed methane extraction method |
| 04/25/2012 | CN102425396A 一种油井有杆泵采油系统 One kind of oil well rod pump oil production system |
| 04/25/2012 | CN102425395A 一种通过钢丝绳调节平衡的节能型抽油机 One kind of energy balance by adjusting the rope pumping unit |
| 04/25/2012 | CN102423553A 固体消泡剂装置消除气井井口至分离器管线中泡沫的方法 Wellhead to the separator gas in the foam method of solid line means the elimination of defoamer |
| 04/25/2012 | CN101566056B 无枪身同轴随进式射孔器 No Barrel coaxial with the feed formula perforator |
| 04/25/2012 | CN101532379B 油井全程加砂增产施工方法 Well the whole sand stimulation construction methods |
| 04/25/2012 | CN101519957B 比例调节注入系统 Proportional control injection system |
| 04/25/2012 | CN101476456B 可充填控水筛管及其布设方法 Its screen can be filled with water control layout method |
| 04/25/2012 | CN101476455B 可充填控水筛管及其布设方法 Its screen can be filled with water control layout method |
| 04/25/2012 | CN101358519B 一种提环式芯管连接高能气体压裂弹 One kind of lift ring core pipe bombs connected to high-energy gas fracturing |
| 04/25/2012 | CN101187305B 单管同井抽注系统 Single-tube system with injection wells pumping |
| 04/25/2012 | CN101016834B 直线驱动式螺杆泵采油系统 Linear-driven screw pump system |
| 04/24/2012 | US8163679 Method for applying remedial cement to a wellbore |
| 04/24/2012 | US8163678 Enhanced oil recovery surfactant formulation and method of making the same |
| 04/24/2012 | US8163677 Consolidation agents and the use thereof for consolidating molded bodies and geological formations consisting of porous or particulate materials |
| 04/24/2012 | US8163676 Emulsifier blend |
| 04/24/2012 | US8162568 Thermogenerator to remediate contaminated sites |
| 04/24/2012 | US8162405 Using tunnels for treating subsurface hydrocarbon containing formations |
| 04/24/2012 | US8162067 System and method to expand tubulars below restrictions |
| 04/24/2012 | US8162065 System and method for controlling liquid removal operations in a gas-producing well |
| 04/24/2012 | US8162060 Gas-lift valve and method of use |
| 04/24/2012 | US8162059 Induction heaters used to heat subsurface formations |
| 04/24/2012 | US8162056 Application of degradable fibers in invert emulsion fluids for kill pills |
| 04/24/2012 | US8162049 Injection-backflow technique for measuring fracture surface area adjacent to a wellbore |
| 04/24/2012 | US8162048 Method of delivering frac fluid and additives |
| 04/24/2012 | US8162044 Systems and methods for providing electrical transmission in downhole tools |
| 04/24/2012 | US8162043 In situ method and system for extraction of oil from shale |
| 04/24/2012 | CA2739274C Compact natural gas steam reformer and reforming method with linear countercurrent heat exchanger |
| 04/24/2012 | CA2738907C Tools and methods for use in completion of a wellbore |
| 04/24/2012 | CA2667735C Large bore packer and methods of setting same |
| 04/24/2012 | CA2662483C Internal breaker for oilfield fluids |
| 04/24/2012 | CA2610463C Integration of an in-situ recovery operation with a mining operation |
| 04/24/2012 | CA2576051C A method and apparatus for downhole detection of co2 and h2s using resonators coated with co2 and h2s sorbents |
| 04/24/2012 | CA2537189C Borehole telemetry system |
| 04/24/2012 | CA2533640C Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars |
| 04/24/2012 | CA2491934C Self-diverting pre-flush acid for sandstone |
| 04/24/2012 | CA2483803C Well treatment system and method |
| 04/22/2012 | CA2755756A1 Methods and systems for treatment of aqueous oily solutions |
| 04/21/2012 | CA2755895A1 Fracturing system and method |
| 04/19/2012 | WO2012051309A2 Method and apparatus for hydraulically fracturing wells |
| 04/19/2012 | WO2012051007A2 Stabilizing emulsified acids for carbonate acidizing |
| 04/19/2012 | WO2012050905A1 Keyless bearing sleeve for subterranean applications |
| 04/19/2012 | WO2012050794A1 Control of fluid flow during treatment of subterranean sites using well fluid injection |
| 04/19/2012 | WO2012050699A2 Control system for extraction of hydrocarbons from underground deposits |
| 04/19/2012 | WO2012050631A1 Plunger for downhole pumps |
| 04/19/2012 | WO2012050542A1 Device for increasing in situ rock permeability |
| 04/19/2012 | WO2012049615A1 Unit for establishing contact between a gas and a liquid for a floating platform |
| 04/19/2012 | WO2012049508A1 Armoured cable for down hole electrical submersible pump |
| 04/19/2012 | WO2012049007A1 Device and method for using the device for "in situ" extraction of bitumen or heavy oil from oil sand deposits |
| 04/19/2012 | WO2012006258A3 Oilfield application of solar energy collection |
| 04/19/2012 | WO2012004601A4 Underwater oil and gas collection system |
| 04/19/2012 | WO2012001406A4 A method of installing a buoy and apparatus for tensioning a buoy to an anchoring location |
| 04/19/2012 | WO2011150060A3 Surfactant-less alkaline-polymer formulations for recovering reactive crude oil |
| 04/19/2012 | WO2011101055A3 Device and method for the recovery, in particular in situ recovery, of a carbonaceous substance from subterranean formations |
| 04/19/2012 | US20120090851 Bailer stimulation production unit |
| 04/19/2012 | US20120090848 Modification of solid polysaccharide with transesterification agent |
| 04/19/2012 | US20120090847 Tools and Methods for Use in Completion of a Wellbore |
| 04/19/2012 | US20120090846 Modification of solid polysaccharide with transesterification agent |
| 04/19/2012 | US20120090845 Stabilizing Emulsified Acids for Carbonate Acidizing |
| 04/19/2012 | US20120090844 Simultaneous conversion and recovery of bitumen using rf |
| 04/19/2012 | US20120090842 Methods and compositions for suspending fluids in a wellbore |
| 04/19/2012 | US20120090840 Method of Treating a Formation Using Deformable Proppants |
| 04/19/2012 | US20120090839 Screen Assembly |
| 04/19/2012 | US20120090838 Method of injecting carbon dioxide |
| 04/19/2012 | US20120090836 Arrangement and method for sending and/or sealing cement at a liner hanger |
| 04/19/2012 | US20120090834 Method For Seismic Interpretation Using Seismic Texture Attributes |
| 04/19/2012 | US20120090833 Water injection systems and methods |
| 04/19/2012 | US20120090325 Ethanol production system for enhanced oil recovery |
| 04/19/2012 | CA2814665A1 Plunger for downhole pumps |
| 04/19/2012 | CA2814046A1 Subsea autonomous dispersant injection system and methods |
| 04/19/2012 | CA2813632A1 Unit for establishing contact between a gas and a liquid for a floating platform |
| 04/19/2012 | CA2812479A1 Device and method for using the device for "in situ" extraction of bitumen or ultraheavy oil from oil sand deposits |
| 04/19/2012 | CA2811522A1 Control system for extraction of hydrocarbons from underground deposits |
| 04/19/2012 | CA2811110A1 Marine subsea assemblies |
| 04/18/2012 | EP2440743A1 A wire screen for a well and method for making it |
| 04/18/2012 | EP2245268B1 Method for self-adjusting (autonomously adjusting) the flow of a fluid through a valve or flow control device in injectors in oil production |
| 04/18/2012 | EP2235321B1 Stimulation through fracturing while drilling |
| 04/18/2012 | EP2193255B1 Methods and systems for evaluating and treating previously-fractured subterranean formations |
| 04/18/2012 | EP2179064B1 Method for identification of novel anaerobic denitrifying bacteria utilizing petroleum components as sole carbon source |
| 04/18/2012 | CN202196293U 一种油田抽油机智能节能控制器 One kind of oil field pumping unit Intelligent Power Controller |