| 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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| 04/11/2012 | EP2438265A2 Method and system for configuring crude oil displacement system | 
| 04/11/2012 | EP2438264A2 Hydraulic oilfield lift pump | 
| 04/11/2012 | EP1257728B1 Artificial lift apparatus with automated monitoring of fluid height in the borehole | 
| 04/11/2012 | CN202188498U 超临界压力油田注汽发生器补燃式燃烧室补燃喷注器 Supercritical pressure steam generator oilfield injection afterburner afterburner combustion chamber injector | 
| 04/11/2012 | CN202188048U 抽油机安全刹车装置 Pumping safety brakes | 
| 04/11/2012 | CN202187755U 一种注气辅助电加热油页岩原位开采模拟装置及系统 An injection of gas auxiliary heating oil shale in-situ mining analog devices and systems | 
| 04/11/2012 | CN202187754U 水平井双管注汽管柱 Horizontal steam injection wells dual string | 
| 04/11/2012 | CN202187753U 复合热载体发生器高压燃烧配风结构 Composite heat carrier generator pressure combustion air distribution structure | 
| 04/11/2012 | CN202187752U 一种复合热载体发生器的雾化装置 A composite thermal atomization device carrier generator | 
| 04/11/2012 | CN202187751U 油井分层采油工艺管柱 Well layered oil production string | 
| 04/11/2012 | CN202187750U 一种预置式井下节流器 One kind Preset downhole choke | 
| 04/11/2012 | CN202187742U 多功能一体封孔注抽器 Multifunctional sealing priming device | 
| 04/11/2012 | CN202187729U 一种隔热管扶正器 A thermal barrier pipe centralizers | 
| 04/11/2012 | CN202187725U Continuous thermal insulation oil tube | 
| 04/11/2012 | CN102410980A 二氧化碳腐蚀模拟试验装置及试验方法 Carbon dioxide corrosion simulation test equipment and test methods | 
| 04/11/2012 | CN102410009A Controlled-valve placed well-cementing staged-fracturing well-completion string and hydraulically-controlled switch string | 
| 04/11/2012 | CN102410008A Subsurface heater | 
| 04/11/2012 | CN102410007A 一种稠油油田保压热采工艺 One kind of heavy oil thermal recovery process of packing | 
| 04/11/2012 | CN102410006A Explosive loading structure for multi-stage composite perforating device | 
| 04/11/2012 | CN102410005A 双向增能传爆装置 Bi-energizing booster device | 
| 04/11/2012 | CN102410004A 水下井口隔水导管回接头 Back subsea wellhead riser joints | 
| 04/11/2012 | CN102410003A 组合式节能抽油机 Combined saving pumping | 
| 04/11/2012 | CN102410002A 一种竖井链斗排煤水采气法 One kind of coal-water discharge shaft bucket Gas Act | 
| 04/11/2012 | CN102410001A 导杆式无游梁抽油机 No guide rod beam pumping unit | 
| 04/11/2012 | CN102410000A 静平衡永磁步进游梁抽油机 Permanent magnet stepper static balance beam pumping unit | 
| 04/11/2012 | CN102408887A 油藏内源微生物高效激活剂及其效果评价方法 Reservoir endogenous microbial efficient activator and its effect evaluation method | 
| 04/11/2012 | CN102407064A 一种双喉部型气体超声速旋流分离装置 A dual throat type gas supersonic cyclonic separation apparatus | 
| 04/11/2012 | CN102407063A 一种切向入口式气体超声速旋流分离装置 An inlet gas to supersonic cyclonic separation apparatus cut | 
| 04/10/2012 | US8151891 Formation saver sub and method | 
| 04/10/2012 | US8151886 Open hole stimulation with jet tool | 
| 04/10/2012 | US8151885 Erosion resistant flow connector | 
| 04/10/2012 | US8151884 Combined development of oil shale by in situ heating with a deeper hydrocarbon resource | 
| 04/10/2012 | US8151883 Stimulation technique for open hole well | 
| 04/10/2012 | US8151882 Technique and apparatus to deploy a perforating gun and sand screen in a well | 
| 04/10/2012 | US8151881 Permeability flow balancing within integral screen joints | 
| 04/10/2012 | US8151880 Methods of making transportation fuel | 
| 04/10/2012 | US8151877 Downhole burner wells for in situ conversion of organic-rich rock formations | 
| 04/10/2012 | US8151876 Well stimulation | 
| 04/10/2012 | US8151875 Device and system for well completion and control and method for completing and controlling a well | 
| 04/10/2012 | US8151874 Thermal recovery of shallow bitumen through increased permeability inclusions | 
| 04/10/2012 | US8151461 Method for producing a threaded tubular connection sealed by radial expansion | 
| 04/10/2012 | CA2675223C Hydrajet bottomhole completion tool and process | 
| 04/10/2012 | CA2663608C Methods for producing a guar gum comprising undehusked guar and for using the guar gum in treating a subterranean formation | 
| 04/10/2012 | CA2656085C Adjustable swage | 
| 04/10/2012 | CA2639426C Apparatus and methods for running liners in extended reach wells | 
| 04/07/2012 | CA2754329A1 Treatment of water for use in hydraulic fracture stimulation | 
| 04/05/2012 | WO2012045060A2 Zonal contact with cementing and fracture treatment in one trip | 
| 04/05/2012 | WO2012044420A1 In situ process for mercury removal | 
| 04/05/2012 | WO2012044269A1 Method for increasing in situ rock permeability | 
| 04/05/2012 | WO2012042403A2 Diversion pill and methods of using the same | 
| 04/05/2012 | WO2012041955A2 Drill pipe | 
| 04/05/2012 | WO2012041877A1 Process for the in situ extraction of bitumen or ultraheavy oil from oil sand deposits as reservoir | 
| 04/05/2012 | WO2012009184A3 Water sensitive porous medium to control downhole water production and method therefor | 
| 04/05/2012 | WO2012006489A3 A method for treatment of subterranean sites adjacent to water injection wells | 
| 04/05/2012 | WO2012005926A3 Drill string/annulus sealing with swellable materials | 
| 04/05/2012 | WO2011163305A3 Side pocket barrier valve gas lift and mandrel | 
| 04/05/2012 | WO2011159523A3 Method and apparatus for use with an inflow control device | 
| 04/05/2012 | WO2011146866A3 Method and apparatus for deploying and using self-locating downhole devices | 
| 04/05/2012 | WO2011143639A3 Materials and methods for temporarily obstructing portions of drilled wells | 
| 04/05/2012 | WO2011107331A3 Method and device for the "in-situ" transport of bitumen or extra-heavy oil | 
| 04/05/2012 | WO2011101228A3 Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit | 
| 04/05/2012 | WO2011101227A3 Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit | 
| 04/05/2012 | WO2011099869A3 A method of installing a flexible, elongate element | 
| 04/05/2012 | US20120080199 Double string slurry pump | 
| 04/05/2012 | US20120080198 Multi-Sleeve Plunger for Plunger Lift System | 
| 04/05/2012 | US20120080197 Constructing Resistivity Models From Stochastic Inversion | 
| 04/05/2012 | US20120080196 Plunger lift and safety valve system | 
| 04/05/2012 | US20120080195 Drilling Composition, Process for its Preparation, and Applications Thereof | 
| 04/05/2012 | US20120080194 Method and apparatus for capturing oil leaking from an underwater well | 
| 04/05/2012 | US20120080192 Hydraulic fracture composition and method | 
| 04/05/2012 | US20120080191 Apparatus and methods for separating sand from well fracturing return water | 
| 04/05/2012 | US20120080190 Zonal contact with cementing and fracture treatment in one trip | 
| 04/05/2012 | US20120080188 Multi-position Valves for Fracturing and Sand Control and Associated Completion Methods | 
| 04/05/2012 | US20120080187 Process for producing mineral oil from underground mineral oil deposits | 
| 04/05/2012 | US20120080186 Apparatus and system for processing solids in subsea drilling or excavation | 
| 04/05/2012 | CA2812897A1 Drill pipe | 
| 04/05/2012 | CA2812711A1 Process for the "in situ" extraction of bitumen or ultraheavy oil from oil-sand deposits as a reservoir | 
| 04/05/2012 | CA2812470A1 Methods for storing carbon dioxide compositions in subterranean geological formations and an apparatus for carrying out the method | 
| 04/04/2012 | EP2436874A1 Drill pipe | 
| 04/04/2012 | EP2436873A2 Corrugated centertube umbilical | 
| 04/04/2012 | EP2436749A1 Thermoset particles with enhanced crosslinking, processing for their production, and their use in oil and natural gas drilling applications | 
| 04/04/2012 | EP2435857A2 Method for monitoring a subsoil zone, particularly during stimulated fracturing operations | 
| 04/04/2012 | EP2435746A1 Valve | 
| 04/04/2012 | EP2435656A2 An active external casing packer (ecp) for frac operations in oil and gas wells | 
| 04/04/2012 | EP1945328B1 Hydrocyclone | 
| 04/04/2012 | CN202181892U 井口简易气液分离计量装置 Simple wellhead gas-liquid separation metering device | 
| 04/04/2012 | CN202181891U 可视化模拟驱油实验研究装置 Visual simulation experimental study means flooding | 
| 04/04/2012 | CN202181890U 智能高压、超高压加药装置 Intelligent high-pressure, high pressure dosing device | 
| 04/04/2012 | CN202181889U 三元复合驱注入系统静态混合器 ASP flooding injection system static mixer | 
| 04/04/2012 | CN202181888U 一种分层注水管柱 A layered water column | 
| 04/04/2012 | CN202181887U 泄压式单体中间接头 Relief monomer middle connector | 
| 04/04/2012 | CN202181886U 新型实用减震器 New practical shock absorbers | 
| 04/04/2012 | CN202181885U 液压抽油机 Hydraulic Pumping Unit | 
| 04/04/2012 | CN202181884U 新型双滚筒长冲程抽油机 The new long-stroke twin cylinder pumping | 
| 04/04/2012 | CN202181883U 联动平衡双游梁抽油机 Linkage balance beam pumping unit double | 
| 04/04/2012 | CN202181882U 智能定力矩抽油装置 Intelligent given moment oil rig | 
| 04/04/2012 | CN202181881U Oil pumping machine | 
| 04/04/2012 | CN202181880U Steel continuous oil pumping tube oil extraction device | 
| 04/04/2012 | CN202181877U 一种定压凡尔及多层分层酸化施工工艺管柱 Seoul where one kind of constant pressure and multi-layered string acidizing process | 
| 04/04/2012 | CN202181873U 一种注水封隔器 One kind of injection packer |