| 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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| 06/01/2011 | CN102080529A Coal-bed gas thermal cavity completion method |
| 06/01/2011 | CN102080528A Controllable multiple-pulse gas generator device |
| 06/01/2011 | CN102080527A Method and device for detonating and fracturing scattered objects |
| 06/01/2011 | CN102080526A Method for extracting gas from bedding level fractured well of ground coal seam roof |
| 06/01/2011 | CN102080525A High-pressure gas injection hole-drilling pressure-releasing outburst prevention method |
| 06/01/2011 | CN102080524A Layered electric ignition method for multilayer gas injection of fire flood |
| 06/01/2011 | CN102080523A Compound huff-puff oil recovery method by using steam and oil-soluble viscosity reducer |
| 06/01/2011 | CN102080522A Oil extraction method for oil deposit of shallow-layer super heavy oil |
| 06/01/2011 | CN102080521A Slurry displacement process for screen pipe completed oil and gas well |
| 06/01/2011 | CN102080520A Deepwater subsea manifold structure |
| 06/01/2011 | CN102080519A Method for extracting coal bed gas by negative pressure on ground through gas-coal simultaneous extraction |
| 06/01/2011 | CN102080518A Method for extracting gas from coal seam roof complex branched well |
| 06/01/2011 | CN102080517A One machine multi-well pumping unit |
| 06/01/2011 | CN102080516A Hydraulic oil pumping unit with high energy saving and low energy consumption |
| 06/01/2011 | CN102080515A Oil pumping unit with high energy-saving and low cost |
| 06/01/2011 | CN102080513A Fire flooding oil recovery wellhead device |
| 06/01/2011 | CN101655139B Speed reducer with high transmission ratio |
| 06/01/2011 | CN101270645B Pressure excitation type detonating device capable of displaying starting signal |
| 06/01/2011 | CN101235711B Hollow sucker rod electric heater unit |
| 06/01/2011 | CA2723198A1 Single well dual/multiple horizontal fracture stimulation for oil production |
| 05/31/2011 | US7953585 Integrated reservoir optimization |
| 05/31/2011 | US7951754 Environmentally friendly bis-quaternary compounds for inhibiting corrosion and removing hydrocarbonaceous deposits in oil and gas applications |
| 05/31/2011 | US7950465 System for dewatering boreholes by means of alternative cycles of vacuum and exhaust, based on the principle of pneumatic displacement |
| 05/31/2011 | US7950464 Multi-well controller |
| 05/31/2011 | US7950461 Screened valve system for selective well stimulation and control |
| 05/31/2011 | US7950460 Controlling the pressure within an annular volume of a wellbore |
| 05/31/2011 | US7950458 Drilling, completing and stimulating a hydrocarbon production well |
| 05/31/2011 | US7950457 Method and apparatus for stimulating wells with propellants |
| 05/31/2011 | US7950455 Non-spherical well treating particulates and methods of using the same |
| 05/31/2011 | US7950454 Technique and system for completing a well |
| 05/31/2011 | US7950453 Downhole burner systems and methods for heating subsurface formations |
| 05/31/2011 | US7950448 Combined FTC support system |
| 05/31/2011 | CA2602964C Fluid recovery system and method |
| 05/31/2011 | CA2462234C Contractable and expandable tubular wellbore system |
| 05/31/2011 | CA2437678C Apparatus and method for wellbore isolation |
| 05/27/2011 | CA2686508A1 Process and process line for the preparation of hydraulic fracturing fluid |
| 05/26/2011 | WO2011063170A2 Expansion system for expandable tubulars |
| 05/26/2011 | WO2011063137A2 System and method for transporting fluids in a pipeline |
| 05/26/2011 | WO2011062991A2 Apparatus and methods for multi-layer wellbore construction |
| 05/26/2011 | WO2011062799A2 Heat generation process for treating oilfield deposits |
| 05/26/2011 | WO2011062797A2 Compensator assembly for submersible pump system |
| 05/26/2011 | WO2011062751A2 Apparatus and method for providing a controllable supply of fluid to subsea well equipment |
| 05/26/2011 | WO2011061497A1 Self-diverting high-rate water packs |
| 05/26/2011 | WO2011060494A1 System for analysing gas from strata being drilled under high mud flows |
| 05/26/2011 | WO2011028563A3 Multi-acting circulation valve |
| 05/26/2011 | WO2011028562A3 Isolation valve for subterranean use |
| 05/26/2011 | WO2011028448A3 Debris catcher with retention within screen |
| 05/26/2011 | WO2011022211A3 Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well |
| 05/26/2011 | WO2011018623A3 System and method for servicing a wellbore |
| 05/26/2011 | WO2011013056A3 Methods and apparatus for multilateral multistage stimulation of a well |
| 05/26/2011 | WO2010020747A3 High rate stimulation method for deep, large bore completions |
| 05/26/2011 | US20110125476 Probabilistic Simulation of Subterranean Fracture Propagation |
| 05/26/2011 | US20110120732 Device and method of lining a wellbore |
| 05/26/2011 | US20110120724 Estimation of Soil Properties Using Waveforms of Seismic Surface Waves |
| 05/26/2011 | US20110120723 Low Alloy Steels With Superior Corrosion Resistance For Oil Country Tubular Goods |
| 05/26/2011 | US20110120722 Subsea control system with interchangeable mandrel |
| 05/26/2011 | US20110120721 Separation of Drill Cuttings from Drilling Fluid on a Seabed |
| 05/26/2011 | US20110120720 Wellhead Test Tool and Method |
| 05/26/2011 | US20110120719 Proppants for hydraulic fracturing technologies |
| 05/26/2011 | US20110120718 Simulating Subterranean Fracture Propagation |
| 05/26/2011 | US20110120717 Generation of fluid for hydrocarbon recovery |
| 05/26/2011 | US20110120713 Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate |
| 05/26/2011 | US20110120712 Increasing fracture complexity in ultra-low permeable subterranean formation using degradable particulate |
| 05/26/2011 | US20110120711 A method of consolidating a fracture in a formation |
| 05/26/2011 | US20110120710 In situ heating for reservoir chamber development |
| 05/26/2011 | US20110120709 Steam-gas-solvent (sgs) process for recovery of heavy crude oil and bitumen |
| 05/26/2011 | US20110120708 Coal bed methane recovery |
| 05/26/2011 | US20110120707 Process for oil recovery using multifunctional anionic surfactants |
| 05/26/2011 | US20110120706 Refining Information on Subterranean Fractures |
| 05/26/2011 | US20110120705 Simulating Injection Treatments from Multiple Wells |
| 05/26/2011 | US20110120704 Producing hydrocarbon fluid from a layer of oil sand |
| 05/26/2011 | US20110120702 Generating probabilistic information on subterranean fractures |
| 05/26/2011 | US20110120700 Expansion System for Expandable Tubulars |
| 05/26/2011 | US20110120695 Perforating gun gravitational orientation system |
| 05/26/2011 | CA2781548A1 System for analysing gas from strata being drilled under high mud flows |
| 05/26/2011 | CA2781344A1 Compensator assembly for submersible pump system |
| 05/26/2011 | CA2780906A1 System and method for transporting fluids in a pipeline |
| 05/26/2011 | CA2780890A1 Heat generation process for treating oilfield deposits |
| 05/25/2011 | EP2324196A1 Hydraulic fracturing proppants |
| 05/25/2011 | EP2324195A1 A modified process for hydrocarbon recovery using in situ combustion |
| 05/25/2011 | EP2324194A1 Method for extracting bitumen and/or ultra-heavy oil from an underground deposit, associated installation and operating method for said installation |
| 05/25/2011 | EP2324193A2 Formation treatment using electromagnetic radiation |
| 05/25/2011 | EP2324192A1 Control of well tools utilizing downhole pumps |
| 05/25/2011 | EP2324191A1 Sand control screen assembly and method for use of same |
| 05/25/2011 | EP2324190A1 Well completion system |
| 05/25/2011 | EP2323754A1 System and method for blending a dry material with a fluid in a closed environment |
| 05/25/2011 | EP2142756B1 Downhole apparatus and method |
| 05/25/2011 | CN201844015U Sealing device at shaft end of reduction box of oil pumping unit |
| 05/25/2011 | CN201843876U Rotating connection type donkey head pin of oil extractor |
| 05/25/2011 | CN201843641U Full-automatic gas-water separation drainer |
| 05/25/2011 | CN201843602U Staged modified string of open-hole horizontal well |
| 05/25/2011 | CN201843601U Magnetic position-pulse acidification deblocking device for oil-water well |
| 05/25/2011 | CN201843600U SAGD (Steam Assisted Gravity Drainage) mechanical lifting circulating preheating equipment |
| 05/25/2011 | CN201843599U Thermal lifting device for heavy oil in ultradeep layer |
| 05/25/2011 | CN201843598U Remote-control gas wellhead ball injection dosing device |
| 05/25/2011 | CN201843597U Bar-ball throwing device used for foam drainage and gas production |
| 05/25/2011 | CN201843596U Automatic feeding device for foam drainage balls in gas well |
| 05/25/2011 | CN201843595U On-line polymer gel microsphere injecting device |
| 05/25/2011 | CN201843594U Tubular column with fine separated layer water injection process |
| 05/25/2011 | CN201843593U Multi-pulse composite perforator |