| 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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| 11/24/2010 | CN201650252U Primary gravel packing tool for heat recovery |
| 11/24/2010 | CN201650251U Solid filling device for gas drilling |
| 11/24/2010 | CN201650250U Three-pipe four-layer injection separating device |
| 11/24/2010 | CN201650249U Adjustable combined throttling device |
| 11/24/2010 | CN201650248U Carrier hole cleaning perforator |
| 11/24/2010 | CN201650247U Hydraulic sand blast eccentric perforating gun |
| 11/24/2010 | CN201650246U Intelligent sieve tube |
| 11/24/2010 | CN201650245U High-strength and high-infiltration sand filter pipe |
| 11/24/2010 | CN201650244U Screw-type oil pumping machine |
| 11/24/2010 | CN201650243U Variable-frequency speed-regulating mechanical reversing pumping unit |
| 11/24/2010 | CN201650242U Oil field casing gas moving recovery device |
| 11/24/2010 | CN201650241U Magnetic suspension type linear motor pumping unit |
| 11/24/2010 | CN201650240U Double-well pumping unit |
| 11/24/2010 | CN201650239U Low-stroke energy-saving transmission device for oilfield oil pumping machine |
| 11/24/2010 | CN201650238U Swing-rod pumping unit |
| 11/24/2010 | CN201650237U Energy-conservation and electric-control device of pumping unit |
| 11/24/2010 | CN201650236U Rope belt type extended-range oil pumping unit |
| 11/24/2010 | CN201650235U Inverted triangular energy-saving oil pump |
| 11/24/2010 | CN201650234U Safe suspension system for work of pumping unit |
| 11/24/2010 | CN201650233U Oil extractor direct-connection all-in-one machine |
| 11/24/2010 | CN201650232U Dual-horse head superposed non-synchronous crank long stroke energy-saving beam-pumping unit |
| 11/24/2010 | CN201650231U Pumping unit horsehead overturning device |
| 11/24/2010 | CN201650230U Balance-adjusting hydraulic device of oil sucking machine |
| 11/24/2010 | CN201650229U Novel multi-well linkage pumping unit adopting roller |
| 11/24/2010 | CN201650228U Chain drive pumping unit |
| 11/24/2010 | CN201650227U Novel anti-theft pressure plate of belt oil pumping machine |
| 11/24/2010 | CN201650226U Roller pumping unit |
| 11/24/2010 | CN201650225U Efficient numerically-controlled oil pumping unit driven by rack wheel with rope groove |
| 11/24/2010 | CN201650224U Counter weight balanced type oil pumping unit |
| 11/24/2010 | CN201650223U Pumping unit counterbalance locker |
| 11/24/2010 | CN201650222U Device for preventing and controlling steel wire rope of beam-pumping unit from being twisted |
| 11/24/2010 | CN201650213U Check valve for acquiring gas |
| 11/24/2010 | CN201650212U Oil-field laminated high-pressure adjustable high-resolution water injection valve |
| 11/24/2010 | CN201650204U Water distribution separator |
| 11/24/2010 | CN201650198U Gas well pressure-dividing stratifying test process pipe column |
| 11/24/2010 | CN201650186U Material of heat preservation clothes for oil production |
| 11/24/2010 | CN201650176U Rotary sitting type screw pump anchor |
| 11/24/2010 | CN201650173U Hollow water distributor core pressurizer |
| 11/24/2010 | CN201644041U Experimental foam generator |
| 11/24/2010 | CN1916359B Method for building new slot to implement refracturing |
| 11/24/2010 | CN101896690A Parallel adaptive data partitioning on a reservoir simulation using an unstructured grid |
| 11/24/2010 | CN101896689A Method of expanding a tubular element in a wellbore |
| 11/24/2010 | CN101896683A System for drilling a wellbore |
| 11/24/2010 | CN101893230A Horizontal boiler radiation segment structure |
| 11/24/2010 | CN101892836A Method for preparing large-scale porous percolating medium |
| 11/24/2010 | CN101892828A Preparation method of anisotropic seepage medium with slits |
| 11/24/2010 | CN101892827A Optimized steam injection technology for horizontal well in segments |
| 11/24/2010 | CN101892826A Gas and electric heating assisted gravity oil drainage technology |
| 11/24/2010 | CN101892825A Method for strengthening indigenous microbes and improving oil recovery by improving microbial florae in oil deposit |
| 11/24/2010 | CN101892824A Combined multi-stage pressure control method and device |
| 11/24/2010 | CN101892823A Method for throwing and fishing out underground restrictor from gas well without utilizing steel wires |
| 11/24/2010 | CN101892822A Quick connector of perforating gun |
| 11/24/2010 | CN101892821A Eccentric balance lifting device |
| 11/24/2010 | CN101892820A Belt-drive decelerating oil extractor without crank |
| 11/24/2010 | CN101892819A Front power-balanced beam-pumping unit |
| 11/24/2010 | CN101892818A Dynamic balancing weight of vertical long-side isosceles triangular two-dimensional surface running orbit of oil pumping unit |
| 11/24/2010 | CN101892817A Gas balance assembly of gas balance oil pumping unit |
| 11/24/2010 | CN101892816A Crank non-beam pumping unit |
| 11/24/2010 | CN101890284A Method and device for obtaining CO2 from discharged gas fume |
| 11/24/2010 | CN101344764B Level automatic measurement and control method of oil-water separation automatic measurement and control device based on combined station free water remover |
| 11/23/2010 | US7836957 In situ conversion of subsurface hydrocarbon deposits to synthesis gas |
| 11/23/2010 | US7836952 Proppant for use in a subterranean formation |
| 11/23/2010 | US7836950 Methods and apparatus to convey electrical pumping systems into wellbores to complete oil and gas wells |
| 11/23/2010 | US7836949 Method and apparatus for controlling the manufacture of well treatment fluid |
| 11/23/2010 | US7836741 Rotary expansion |
| 11/23/2010 | CA2622730C Heavy wax stimulation diverting agent |
| 11/23/2010 | CA2614645C Inflow control device with passive shut-off feature |
| 11/23/2010 | CA2613757C Wellbore plug adapter kit |
| 11/23/2010 | CA2611928C Methods and apparatus for multiple fracturing of subterranean formations |
| 11/23/2010 | CA2596463C Drainage of heavy oil reservoir via horizontal wellbore |
| 11/23/2010 | CA2497113C Remote actuator for ball injector |
| 11/23/2010 | CA2486177C Tubular goods and liners |
| 11/23/2010 | CA2466685C Liner hanger with sliding sleeve valve |
| 11/23/2010 | CA2465959C Copolymers useful for gelling acids |
| 11/23/2010 | CA2308268C Well treatment fluid and method of manufacture |
| 11/22/2010 | CA2705169A1 Cyclonic debris evacuation apparatus and method for a pump |
| 11/22/2010 | CA2705086A1 Plunger lift |
| 11/20/2010 | CA2704689A1 In-situ upgrading of heavy crude oil in a production well using radio frequency or microwave radiation and a catalyst |
| 11/20/2010 | CA2704591A1 Accelerating the start-up phase for a steam assisted gravity drainage operation using radio frequency or microwave radiation |
| 11/20/2010 | CA2704575A1 Wellhead hydrocarbon upgrading using microwaves |
| 11/20/2010 | CA2704060A1 Operating method for a porous medium by means of fluid flow modeling |
| 11/18/2010 | WO2010132894A1 Method and apparatus for strain relief in thermal liners for fluid transfer |
| 11/18/2010 | WO2010132704A2 In situ method and system for extraction of oil from shale |
| 11/18/2010 | WO2010132658A1 Continuous composite rod and methods |
| 11/18/2010 | WO2010132489A2 Scintillator crystal materials, scintillators and radiation detectors |
| 11/18/2010 | WO2010132345A2 Fracturing with telescoping members and sealing the annular space |
| 11/18/2010 | WO2010131978A1 Method for sampling and analysis of production from a subsea well for measuring salinity of produced water and also volumetric ratio between liquid fractions |
| 11/18/2010 | WO2010112810A3 System and method for servicing a wellbore |
| 11/18/2010 | WO2010110952A3 Dc powered subsea inverter |
| 11/18/2010 | WO2010107726A3 Recovering heavy oil through the use of microwave heating in horizontal wells |
| 11/18/2010 | WO2010107721A3 Well treatment fluid |
| 11/18/2010 | WO2010102006A3 System and method for monitoring fluid flow through an electrical submersible pump |
| 11/18/2010 | WO2010101752A3 Subterranean screen with varying resistance to flow |
| 11/18/2010 | WO2010096255A3 Screen flow equalization system |
| 11/18/2010 | WO2010093700A3 Methods of recovering minerals from hydrocarbonaceous material using a constructed infrastructure and associated systems |
| 11/18/2010 | WO2010093684A3 Carbon management and sequestration from encapsulated control infrastructures |
| 11/18/2010 | WO2010092352A3 Method and apparatus for multi-zone stimulation |
| 11/18/2010 | WO2010085802A3 Additives for improving motor oil properties |
| 11/18/2010 | WO2010083803A3 Apparatus for a pipe string of a geological drill hole, pipe string, method for operating a geological drilling gear and method for producing a pipe string for a geological drill hole |
| 11/18/2010 | WO2010082113A3 Provision of viscous compositions below ground |