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)
07/2010
07/14/2010CN201526305U Pumping unit underground stroke lengthening device with high stability
07/14/2010CN201526304U Secondary balance weight hydraulic pumping unit
07/14/2010CN201526303U Separate mining process unit by single-pump pressure balancing method
07/14/2010CN201526302U Brake system for oil extractor
07/14/2010CN201526290U Adjustable deviation prevention polished rod eye of oil extractor
07/14/2010CN101778996A Combined seal head and pump intake for electrical submersible pump
07/14/2010CN101778995A Method and apparatus for connecting shunt tubes to sand screen assemblies
07/14/2010CN101778994A Method of lining a well or a pipe using an inflatable bladder
07/14/2010CN101778949A biological enhancement of hydrocarbon extraction
07/14/2010CN101775978A Process for building closed wall of underground coal mine gasification furnace
07/14/2010CN101775977A Dual-tube injection well safety production string
07/14/2010CN101775976A Water filling layer position increasing device
07/14/2010CN101775975A Method for exploiting coal bed gas by hydraulic drilling and pressure relieving
07/14/2010CN101775974A Method for exploiting coal bed methane (CBM) by water transportation and pressure relief in butted well
07/14/2010CN101775973A High-strength compound sand-prevention screen pipe and manufacture method thereof
07/14/2010CN101775972A Multiple-power reducing tower shelf type oil pumping machine
07/14/2010CN101775971A Oil-field largest swept volume chemical-flooding oil production method
07/14/2010CN101775970A Oil pumping machine
07/14/2010CN101775969A Tower type combined drive pumping unit without guide wheel
07/14/2010CN101775968A Blowout-preventing casing gas recovering device
07/13/2010US7754659 A composite proppant having a proppant substrate such as a porous ceramic or silica sand having magnetite magnetic particles attached to the outer surface of the proppant using a hot melt thermoplastic polymeric adhesive coating on the proppant substrate; treating a subterranean formation
07/13/2010US7754658 Usding mixture of acid and crosslinked oxidized xanthan gum for penetration of well bore
07/13/2010US7753972 Portable Renewable Energy System for Enhanced Oil Recovery (PRESEOR) is a truck mobile system that reforms biomass into CO2 and H2, following which the gases are separated, with the CO2 sequestered underground for enhanced oil recovery, H2 used to generate several megawatts of carbon-free electricity
07/13/2010US7753130 Method and tool for placing a well bore liner
07/13/2010US7753129 Wireline or coiled tubing deployed electric submersible pump
07/13/2010US7753127 Bottomhole tool and a method for enhanced oil production and stabilization of wells with high gas-to-oil ratio
07/13/2010US7753126 Method and apparatus for vacuum collecting and gravity depositing drill cuttings
07/13/2010US7753123 Method for treating a subterranean formation
07/13/2010US7753122 Method of developing and producing deep geothermal reservoirs
07/13/2010US7753121 Well completion system having perforating charges integrated with a spirally wrapped screen
07/13/2010US7753120 Pore fluid sampling system with diffusion barrier and method of use thereof
07/13/2010US7753115 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations
07/13/2010CA2627027C Erosion resistant frac head
07/13/2010CA2597548C One trip cemented expandable monobore liner system and method
07/13/2010CA2544887C Wellbore gravel packing apparatus and method
07/13/2010CA2504084C Setting tool for hydraulically actuated devices
07/13/2010CA2441757C Method for preventing critical annular pressure buildup
07/13/2010CA2440894C Double-cone device and pump
07/13/2010CA2299076C Mono-diameter wellbore casing
07/09/2010CA2689867A1 Detonator for material-dispensing wellbore tools
07/08/2010WO2010078524A2 Ceramic article and process for making the same
07/08/2010WO2010078387A2 Liner drilling system with retrievable bottom hole assembly
07/08/2010WO2010078334A1 Drainage or filter layer for well screen assembly with integrated stand-off structure
07/08/2010WO2010078243A2 Method and system for producing hydrocarbons from a hydrate reservoir using available waste heat
07/08/2010WO2010078162A2 Method and system for producing hydrocarbons from a hydrate reservoir using a sweep gas
07/08/2010WO2010077932A1 Configurations and methods for improved subsea production control
07/08/2010WO2010077822A2 System and method for slug control
07/08/2010WO2010077748A1 Method of determining end member concentrations
07/08/2010WO2010077746A1 Running-tool for downhole equipment with a hydraulic control system
07/08/2010WO2010077729A1 Efficient single trip gravel pack service tool
07/08/2010WO2010077666A2 Improved submersible pump motor cooling through external oil circulation
07/08/2010WO2010076744A1 System, method, and treatment fluid for controlling fines migration
07/08/2010WO2010076535A2 Method for disconnecting a device for transferring fluid between the bottom of an expanse of water and the surface and associated transfer device
07/08/2010WO2010076283A1 Method and system for pumping liquid from an offshore natural gas production well
07/08/2010WO2010076282A1 Minimal gas processing scheme for recycling co2 in a co2 enhanced oil recovery flood
07/08/2010WO2010053876A3 Heater and method for recovering hydrocarbons from underground deposits
07/08/2010WO2010045077A3 Shape memory polyurethane foam for downhole sand control filtration devices
07/08/2010WO2009071981A3 Silica inhibition and blowdown evaporation process
07/08/2010US20100171310 Sealed tubular joint with plastic expansion and at least one inclined surface
07/08/2010US20100170683 Gas activity analysis in the ground
07/08/2010US20100170677 Multiple production string apparatus
07/08/2010US20100170674 Injection well storage of carbon dioxide
07/08/2010US20100170673 System and method for downhole blowout prevention
07/08/2010US20100170672 Method of and system for hydrocarbon recovery
07/08/2010DE102008056089A1 Method for measuring state variable e.g. temperature, of oil pipeline in offshore-area of oil and gas pumping station, involves using electrically operated measuring devices, and diverging supply energy from electricity provided to pipeline
07/08/2010CA2750905A1 Method for monitoring deformation of well equipment
07/08/2010CA2748694A1 Drainage or filter layer for well screen assembly with integrated stand-off structure
07/08/2010CA2748599A1 Ceramic article and process for making the same
07/08/2010CA2748514A1 Method and system for producing hydrocarbons from a hydrate reservoir using a sweep gas
07/08/2010CA2748363A1 Method and system for producing hydrocarbons from a hydrate reservoir using available waste heat
07/08/2010CA2747981A1 Well equipment for heated fluid recovery
07/08/2010CA2746453A1 System and method for slug control
07/08/2010CA2745801A1 Improved submersible pump motor cooling through external oil circulation
07/07/2010EP2203628A2 Shear open valve
07/07/2010EP2203627A2 Method and device
07/07/2010EP2203626A2 Apparatus for adjustably controlling the inflow of production fluids from a subterranean well
07/07/2010EP2203625A1 Multi-zone gravel pack system with pipe coupling and integrated valve
07/07/2010EP2203624A2 Oil well pump apparatus
07/07/2010CN201521753U Anti-theft pollution discharging plug
07/07/2010CN201521547U Anti-loosing crank pin device
07/07/2010CN201521289U Signal recognition device for realizing repeated downhole function of oilfield downhole tool
07/07/2010CN201521286U Anti-dredging resistance-accounting concentric switch of water injection well
07/07/2010CN201521285U Reverse circulation air power cavity manufacturing device for coal bed gas well
07/07/2010CN201521284U Automatic regulating device for horsehead of pumping unit
07/07/2010CN201521283U Energy conversion adjusting device
07/07/2010CN201521277U 注水井封隔器 Packer injection wells
07/07/2010CN201521264U Cattle-head beam hanger
07/07/2010CN101772618A Drainage of heavy oil reservoir via horizontal wellbore
07/07/2010CN101772617A Method for altering the stress state of a formation and/or a tubular
07/07/2010CN101769271A Deep-well oil-extraction external flow-channel direct and reverse circulation freely-throwing jet injector oil production method and device
07/07/2010CN101769148A Distributed simulation method for offshore oil field development and production system
07/07/2010CN101769147A Method for evaluating oilfield fireflood scheme
07/07/2010CN101769146A Metal-to-metal sealing tieback connector
07/07/2010CN101769145A Reciprocating motion device
07/07/2010CN101769144A Twin-well column pumping unit
07/07/2010CN101769143A Skid-mounted device for switching and monitoring process flows of water dissolving method mining
07/07/2010CN101769142A Mechanical damping electric control reversing single-well/double-well oil pumping unit
07/07/2010CN101769129A Integral layering gas recovery technology tubular column and application method thereof
07/07/2010CN101768462A Emulsifying and viscosity-decreasing method of thick oil
07/07/2010CN101766921A Declining-type oil-water separation device with multilayer wing-shaped plates
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