| 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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| 09/14/2011 | CN102187055A Circulated heated transfer fluid systems used to treat a subsurface formation |
| 09/14/2011 | CN102183796A Testing device and method for simulating backflow of propping agent |
| 09/14/2011 | CN102182650A Method for obtaining gravitational energy and gravity energy conservation oil pumping machine |
| 09/14/2011 | CN102182499A Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed |
| 09/14/2011 | CN102182446A Mine monitoring method and equipment |
| 09/14/2011 | CN102182442A Method for preparing radioisotope tracer |
| 09/14/2011 | CN102182439A Balanced-pressure perforation/negative-pressure backflow process |
| 09/14/2011 | CN102182438A Layered fracturing technology for variable-length graded sliding sleeve |
| 09/14/2011 | CN102182437A Method for determining and eliminating hydraulic fracture stress boundary of coal mine underground drilling |
| 09/14/2011 | CN102182436A Fracture acidizing simulator and method |
| 09/14/2011 | CN102182435A Directional fracturing device for coal mine |
| 09/14/2011 | CN102182434A Method for oil displacement by activating indigenous microbes through slow release action |
| 09/14/2011 | CN102182433A Retrievable underground foaming agent mixing device |
| 09/14/2011 | CN102182432A Secondary explosion energy-releasing liner |
| 09/14/2011 | CN102182431A Multi-bullet directional fixed experiment perforator |
| 09/14/2011 | CN102182430A Drillable quartz sand filter tube sand-prevention mated tube column of horizontal well |
| 09/14/2011 | CN102182429A Air balance hydraulic pumping unit for offshore platform |
| 09/14/2011 | CN102182428A Reciprocating rack linear driving oil pumping unit |
| 09/14/2011 | CN102182427A Numerically-controlled distance-measuring brake drum oil pumping unit |
| 09/14/2011 | CN102182426A Method for pumping coal bed gas from long-distance pressure-relieved coal bed |
| 09/14/2011 | CN102182412A Complete equipment for plugging liner during operation under pressure |
| 09/14/2011 | CN102181057A Vinyl-containing organic silicon resin for sand screen and preparation method and application thereof |
| 09/14/2011 | CN101852424B Vehicle-mounted, movable and skid-mounted smoke three-pass steam-injection boiler |
| 09/14/2011 | CN101319607B Method for no-grounding treatment and comprehensive utilization of oil-gas field downhole operation output solution |
| 09/13/2011 | US8017562 Gelled hydrocarbons for oilfield processes, phosphate ester compounds useful in gellation of hydrocarbons and methods for production and use thereof |
| 09/13/2011 | US8016589 Method of starting up a direct heating system for the flameless combustion of fuel and direct heating of a process fluid |
| 09/13/2011 | US8016520 Connector for releasable connection between an anchorage in the form of a female part arranged on a floating means and a male part formed at the end of a retrievable umbilical |
| 09/13/2011 | US8016041 Treatment for recycling fracture water gas and oil recovery in shale deposits |
| 09/13/2011 | US8016040 Fluid loss control |
| 09/13/2011 | US8016039 Method of reducing water influx into gas wells |
| 09/13/2011 | US8016034 Methods of fluid placement and diversion in subterranean formations |
| 09/13/2011 | US8016032 Well treatment device, method and system |
| 09/13/2011 | US8016030 Apparatus and method for containing oil from a deep water oil well |
| 09/13/2011 | US8016027 Apparatus for driving rotating down hole pumps |
| 09/13/2011 | CA2641965C Particulate matter exclusion device |
| 09/11/2011 | CA2733135A1 System and method for fluid treatment for wellbore servicing operations |
| 09/09/2011 | WO2011109782A1 Colloidal-crystal quantum dots as tracers in underground formations |
| 09/09/2011 | WO2011109143A1 Co2 storage in organic-rich rock formation with hydrocarbon recovery |
| 09/09/2011 | WO2011109118A1 System and method for creating flowable hydrate slurries in production fluids |
| 09/09/2011 | WO2011108005A2 A process for maximization and optimization of coal energy |
| 09/09/2011 | WO2011107795A2 Bubbles generation device and method |
| 09/09/2011 | WO2011107794A2 Fuel cells |
| 09/09/2011 | WO2011107732A2 Fracturing a stress-altered subterranean formation |
| 09/09/2011 | WO2011107331A2 Method and device for the "in-situ" transport of bitumen or extra-heavy oil |
| 09/09/2011 | WO2011084769A3 System and method for waterflooding offshore reservoirs |
| 09/09/2011 | WO2011080291A3 Downhole perforation tool |
| 09/09/2011 | WO2011056410A3 Drill-in fluids for oil and gas reservoirs with high carbonate contents |
| 09/09/2011 | WO2011056394A3 Systems and methods for initiating annular obstruction in a subsurface well |
| 09/09/2011 | CA2791822A1 Method and device for the "in-situ" transport of bitumen or extra-heavy oil |
| 09/09/2011 | CA2791758A1 Fracturing a stress-altered subterranean formation |
| 09/09/2011 | CA2791645A1 Co2 storage in organic-rich rock formation with hydrocarbon recovery |
| 09/08/2011 | US20110214884 Lining of well bores with expandable and conventional liners |
| 09/08/2011 | US20110214880 Artificial lift system and method for well |
| 09/08/2011 | US20110214879 Tactile pressure sensing devices and methods for using same |
| 09/08/2011 | US20110214878 Methods and Systems For Modeling, Designing, and Conducting Drilling Operations That Consider Vibrations |
| 09/08/2011 | US20110214875 Completion String Deployment in a Subterranean Well |
| 09/08/2011 | US20110214870 Lost circulation composition |
| 09/08/2011 | US20110214869 Active Seismic Monitoring of Fracturing Operations |
| 09/08/2011 | US20110214868 Clean Viscosified Treatment Fluids and Associated Methods |
| 09/08/2011 | US20110214867 Lewis acid as gelation retarder for crosslinkable polymer compositions |
| 09/08/2011 | US20110214866 Salt of weak bronsted base and bronsted acid as gelation retarder fr crosslinkable polymer compositions |
| 09/08/2011 | US20110214865 Weak organic acid as gelation retarder for crosslinkable polymer compositions |
| 09/08/2011 | US20110214864 Invert drilling fluids having enhanced rheology and methods of drilling boreholes |
| 09/08/2011 | US20110214862 Particulate bridging agents used for forming and breaking filtercakes on wellbores |
| 09/08/2011 | US20110214860 Clean Viscosified Treatment Fluids and Associated Methods |
| 09/08/2011 | US20110214859 Clean Viscosified Treatment Fluids and Associated Methods |
| 09/08/2011 | US20110214858 Downhole steam generator and method of use |
| 09/08/2011 | US20110214857 Ammonium halide as gelation retarder for crosslinkable polymer compositions |
| 09/08/2011 | US20110214855 Expandable Device for Use in a Well Bore |
| 09/08/2011 | DE102010020154A1 Verfahren und Vorrichtung zur "in-situ"-Förderung von Bitumen oder Schwerstöl Method and device for "in-situ" extraction of bitumen or heavy oil |
| 09/07/2011 | EP2362887A2 Cement compositions and methods utilizing nano-hydraulic cement |
| 09/07/2011 | CN201963831U 抽油机专用三环减速器 Pumping special ring reducer |
| 09/07/2011 | CN201963301U 岩心夹持器出口端密封结构 Sealing the outlet end of the core holder structure |
| 09/07/2011 | CN201963300U 一种模拟二维岩芯的多级圆柱筒体填砂管装置 An analog two-dimensional multi-stage cylindrical core barrel filling sand tube device |
| 09/07/2011 | CN201963287U 井下高效油气分离器 Downhole gas separator efficiency |
| 09/07/2011 | CN201963286U 水平井中心管降低含水的采油管柱 Horizontal wells in the center of the tube to reduce aqueous production string |
| 09/07/2011 | CN201963285U 井下点火器悬挂装置 Underground ignition hitch |
| 09/07/2011 | CN201963284U 均匀注蒸汽装置 Uniform steam injection device |
| 09/07/2011 | CN201963283U 双油管高温气举工艺管柱 Dual tubing string of high temperature gas-lift technology |
| 09/07/2011 | CN201963282U 油田用饱和蒸汽等干度分配装置 Oilfield with saturated steam dryness and other distribution means |
| 09/07/2011 | CN201963281U 一种模拟二维岩芯的圆台筒体填砂管装置 An analog-dimensional core of round table cylinder filling sand tube device |
| 09/07/2011 | CN201963280U 偏心配水器可传压装置 Eccentric water can pass pressure device |
| 09/07/2011 | CN201963279U 卡箍式空心配水装置 Clamp hollow water distribution system |
| 09/07/2011 | CN201963278U 油井套管气增压回收装置 Well casing gas booster recovery |
| 09/07/2011 | CN201963277U 油气田专用氮气置换装置 Purged with nitrogen gas fields dedicated device |
| 09/07/2011 | CN201963276U 增压气举排水采气装置 Drainage gas pressurized gas lift device |
| 09/07/2011 | CN201963275U 水平井射孔枪“蝴蝶结”型固弹孔弹架装置 Horizontal well perforating gun "bow" type solid bullet holes bomb rack unit |
| 09/07/2011 | CN201963274U 射孔弹偏心固弹弹架 Perforating eccentric solid Bouncing bomb rack |
| 09/07/2011 | CN201963273U 一种深水水下管汇结构 Deep water underwater manifold structure |
| 09/07/2011 | CN201963272U 全平衡节能抽油机 Fully balanced energy-pumping |
| 09/07/2011 | CN201963271U 气井抽吸泡排一体化排液装置 Gas discharge bulb suction drain device integration |
| 09/07/2011 | CN201963270U 游梁式抽油机平衡块调节工具 Balance beam pumping unit block adjustment tool |
| 09/07/2011 | CN201963269U 碰泵器悬挂组合装置 Touch the pump is suspended combination device |
| 09/07/2011 | CN201963268U 抽油机 Pumping |
| 09/07/2011 | CN201963267U 液压减速式抽油机 Hydraulic pumping unit reducer |
| 09/07/2011 | CN201963266U 一种井下双管工艺管柱 A downhole twin-tube technology column |
| 09/07/2011 | CN201963265U 一种抽油机冲次的计数装置 One kind of counting device pumping punch times |
| 09/07/2011 | CN201963264U 一种抽油机驴头旋转装置 One kind of ass pumping head rotating device |
| 09/07/2011 | CN201963263U 一体式横梁连杆装置 One of the beams linkage assembly |
| 09/07/2011 | CN201963262U 游梁式抽油机死刹安全摘除装置 Beam pumping unit brake safety stripping apparatus dead |