Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
07/2012
07/04/2012CN202300371U 一种移动式油井井口计量装置 A portable measuring device wellhead
07/04/2012CN202300368U 油气水单计量管自动计量装置 Single-tube gas-water metering automatic measuring device
07/04/2012CN202300361U 油井计量分离装置 Well metering separation device
07/04/2012CN202300360U 一种收气排污装置 One kind of close air sewage plant
07/04/2012CN202300359U 一种盐矿钻井水溶开采装置 One kind of salt solution mining drilling equipment
07/04/2012CN202300358U 一种用于油井压裂作业立式砂罐的加砂装置 Sand device for vertical Shaguan of fracturing jobs
07/04/2012CN202300357U Well cementing staged fracturing well completion pipe column with controllable valves and hydraulic control switch pipe column
07/04/2012CN202300356U 井口光电遥感自控滴注系统 Remote-controlled infusion system wellhead photoelectric
07/04/2012CN202300355U 聚合物多通道油管分注管柱 Multi-channel dispensing polymer tubing string
07/04/2012CN202300354U 水井缓释防堵装置 Well sustained-release attempts to prevent the device
07/04/2012CN202300353U 一种细分层掺水采油管柱 One kind of breakdown layer watered production string
07/04/2012CN202300352U 多功能驱替物理模拟装置计量机构 Multifunction displacement metering mechanism physical simulation device
07/04/2012CN202300351U 一种长岩心模型驱替装置 A long-flooding device core model
07/04/2012CN202300350U 可调式防砂油嘴 Adjustable Sand glib
07/04/2012CN202300349U 一种油嘴 One kind of glib
07/04/2012CN202300348U 投球压力开孔起爆装置 Pitching pressure openings detonating device
07/04/2012CN202300347U 高压大排量水力射孔机组 High pressure and large displacement hydraulic perforating unit
07/04/2012CN202300346U 一种油水井解堵水力喷射棒 An oil spray bars wells Solutions shutoff force
07/04/2012CN202300345U 一种室内模拟现场射孔的装置 A kind of interior analog field perforating device
07/04/2012CN202300344U 膨胀管用折叠式可变径膨胀工具 Expansion pipe expansion tool adjustable folding can
07/04/2012CN202300343U Petroleum sand-preventing inner pipe
07/04/2012CN202300342U 可控自洁洗防砂筛管 Controllable self-cleaning wash sand control screen
07/04/2012CN202300341U 一种具有挡砂功能的电泵完井管柱 Having a gear pump sand completion string functions
07/04/2012CN202300340U 一种抽油机动平衡适时自动调节装置 One kind of balancing timely pumping automatic adjustment device
07/04/2012CN202300339U 抽油机平衡块移动装置 Pumping weights mobile devices
07/04/2012CN202300338U 多井联动互平衡式抽油机 Mutual Balanced multi-well pumping unit linkage
07/04/2012CN202300337U 自平衡式抽油机 Self-balanced pumping unit
07/04/2012CN202300336U 地面液压控制油管注入功能的电泵采油管柱 Ground hydraulic control tubing injection pump production string functions
07/04/2012CN202300335U 地面瓦斯抽气机 Ground gas pumping machine
07/04/2012CN202300334U 连续式短冲程抽油机 Continuous short stroke pumping unit
07/04/2012CN202300333U 电动潜油螺杆泵井下油水分离同井采注装置 Electric submersible screw downhole oil-water separation equipment with well taken note
07/04/2012CN202300332U 用于柱塞采气系统的井下分级装置及多级柱塞采气系统 Classification device for downhole plunger gas production systems and multi-stage piston gas recovery system
07/04/2012CN202300331U 驴头侧板 Donkey head side
07/04/2012CN202300330U 自控式油井套管气回收装置 Self-control gas well casing recovery
07/04/2012CN202300329U 抽油机安全护栏 Pumping security fence
07/04/2012CN202300328U 调径变矩抽油机 Path variable torque pumping tune
07/04/2012CN202300327U Fixing device of drill pump pull rod sealing element
07/04/2012CN202300318U Hydraulic control switch tool for driving fracturing well completion controllable valve
07/04/2012CN202300309U 可压井井下节流器 Downhole choke can kill
07/04/2012CN202300236U 抽油机悬绳器 Pumping hanging rope
07/04/2012CN202300221U 裸眼水平井控水采油管柱 Openhole horizontal well production string and water control
07/04/2012CN202297503U 原油脱水装置 Crude oil dehydration unit
07/04/2012CN202296217U 可单独起升的螺旋输砂装置 Individually lose sand lifting device spiral
07/04/2012CN1690357B Openhole perforating device
07/04/2012CN102549235A Apparatus and method for passive fluid control in a wellbore
07/04/2012CN102549234A A system and apparatus for well screening including a foam layer
07/04/2012CN102536219A Detection method for reservoir changes of oil and gas fields
07/04/2012CN102536218A Method for monitoring temperature of coal underground gasification working surface
07/04/2012CN102536188A Fiber conveying device applied in fiber assisted fracturing process of oil-gas well and operating method for fiber conveying device
07/04/2012CN102536187A Switchable hydraulic jet fracturing underground device with combined slide sleeves
07/04/2012CN102536186A Method for fracturing composite pipe column through hydraulic jetting in segmented mode
07/04/2012CN102536185A Multi-stage draggable water-jet packer tubular column and technology
07/04/2012CN102536184A Method for exploiting coal-bed gas of burned coal bed
07/04/2012CN102536183A Underground gas injection pipe column
07/04/2012CN102536182A Distributor of equal dryness degree for wet steam
07/04/2012CN102536181A Adjustable eccentric injection allocation device for polymer injection well
07/04/2012CN102536180A Method and device for preventing sediment and scale substances from entering into rock core
07/04/2012CN102536179A Self-feedback water injection well regulating and controlling device and control method thereof
07/04/2012CN102536178A Method for prolonging augmented injection measure period of water injection well scaling easily
07/04/2012CN102536177A Positive-pressure blasting device
07/04/2012CN102536176A Pressure-regulating and water-controlling sand control pipe
07/04/2012CN102536175A Gas handler, riser assembly, and method
07/04/2012CN102536174A Method for longitudinally mining geothermal energy
07/04/2012CN102536173A Lever system for oil pumping machine
07/04/2012CN102536172A Sectional production tubular pile for horizontal well
07/04/2012CN102536171A Inclined hanging pump type small-sized hydraulic system oil pumping machine
07/04/2012CN102536170A Pulley type oil pumping machine
07/04/2012CN102536169A Dual-traction oil pumping unit
07/04/2012CN102536168A Capacitive energy storage type rack drive pumping unit driven by switched reluctance motor
07/04/2012CN102536167A Single-crank stepless speed regulation walking beam type water pump
07/04/2012CN102536152A Underground digital intelligent water shutoff system of water injection well
07/04/2012CN102533234A Cement composition and application thereof
07/04/2012CN102533233A High-temperature-resistant and high-salinity-resistant water-plugging profile control agent, and preparation method and application thereof
07/04/2012CN102531227A A process for treatment of produced water obtained from an enhanced oil recovery process using polymers
07/04/2012CN102049400B Novel online automatic water washing device
07/04/2012CN101766921B Declining-type oil-water separation device with multilayer wing-shaped plates
07/04/2012CN101629484B Resource recycling method of waste ammonium alkali liquid for well injection and brine extraction of sodium sulfate type salt mine
07/04/2012CN101598522B Delivery and initiation device for deflagration and fracturing liquid explosive in hydraulic fracture and application thereof
07/04/2012CN101575983B Directional fracturing permeability improvement outburst elimination method in coal mine and device thereof.
07/04/2012CN101566054B Primary gravel packing tool for heat recovery
07/04/2012CN101560875B Multifunctional horizontal well completion tubular pile device
07/04/2012CN101539010B Thermal-prestressed fusion casing for heavy-oil thermal recovery process, and using method thereof
07/04/2012CN101532377B Pendulum-type energy-saving oil extractor
07/04/2012CN101519954B Multifunctional combination operation process and device for injection pump unit
07/04/2012CN101493005B Design method for acid proof truck-mounted blender
07/04/2012CN101493004B Cracking agent precision control method
07/04/2012CN101469607B Water injection technological process using three parameters test curve for layered pulling and running for water injection allocation
07/04/2012CN101435330B Method for making man-made rock core target
07/04/2012CN101435328B Method and device for exploring seabed gas hydrate
07/04/2012CN101421488B Kerogen extraction from subterranean oil shale resources
07/04/2012CN101375016B Flexible well completions
07/04/2012CN101333921B Water borne conduit wiring suspension device
07/04/2012CN101324178B Casing tube heightening well head safety compensation apparatus
07/04/2012CN101270653B Acid distributing pipe with eyelet structure
07/04/2012CN101122230B Tracing flow polymer-injected profile logging device, tracing agent and confection device and logging method
07/04/2012CN101092873B Fluctuant dissolving dipping mining method
07/04/2012CA2764343A1 Enhanced hydrocarbon recovery from low mobility reservoirs
07/03/2012US8214186 Oilfield emulator
07/03/2012US8211836 Method of removing calcareous or siliceous deposits or scales
07/03/2012US8211835 Composition and method for slickwater application
1 ... 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 ... 642