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)
08/2010
08/11/2010CN201546690U Thread heat pipe of overlong oil-pumping rod
08/11/2010CN201546689U Overheat steam boiler for oil field steam injection
08/11/2010CN201546688U Symmetrical unequal high helical double-nib butt-joint guide positioning device
08/11/2010CN201546687U Portable machine transferring tool of belt pumping unit
08/11/2010CN201546686U Friction-type linear oil-pumping unit with multiple ropes
08/11/2010CN201546685U Production device of standardized gas well
08/11/2010CN201546684U Rodless oil production system driven by downhole rotating motor
08/11/2010CN201546683U Radio-alarming self-stopping device of pumping unit when in breaking or disconnection of polish rod, sand plugging or wax plugging
08/11/2010CN201546682U Energy-saving oil pumping unit
08/11/2010CN201546674U Novel multi-functional double-effect valve
08/11/2010CN201546673U Leakproof valve-switch tool used in multilayer sand-prevention well
08/11/2010CN201546661U Constant-pressure controller of excluder
08/11/2010CN201546659U Improved oil well stream-injection blowout control equipment
08/11/2010CN201546641U Apparatus for preventing twist of wool plait in oil pumping unit
08/11/2010CN201546633U Sucker rod with three centralizing blocks
08/11/2010CN1957156B Completion with telescoping perforation and fracturing tool
08/11/2010CN101802345A tubular expander
08/11/2010CN101802128A Improved process for enhanced oil recovery
08/11/2010CN101798915A Method for improving recovery ratio of thick-layer massive thickened oil by utilizing subsection fireflooding exploitation
08/11/2010CN101798914A Method for improving high-temperature stability of sulfonated drilling fluid
08/11/2010CN101798913A Differential pressure underground throttle device
08/11/2010CN101798912A Device and method for regulating and controlling water content of production fluid of underground layering of oil field
08/11/2010CN101439238B Polyphase flow separator
08/11/2010CN101148981B Pumping unit hair plait twisting resisting equipment
08/10/2010US7772165 Quaternary ammonium compounds with two cationic sites connected through a linker; hydraulic fluids, demulsifiers, foamers, organoclays, thickeners, biocides, and oil field fluids.
08/10/2010US7772162 Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells
08/10/2010US7772161 to improve the lubricity of the mud as well as aiding in wellbore cleaning, prevention of bit balling and reduction of fluid loss to thief zones; scouring agent comprises ground elastomer particles from 0.5 to 4000 microns; non-aqueous fluid or an oil-based drilling mud absorbed by elastomer
08/10/2010US7770662 Ballistic systems having an impedance barrier
08/10/2010US7770652 Ball release procedure and release tool
08/10/2010US7770651 Method and apparatus for sub-sea processing
08/10/2010US7770647 Hydraulic fracturing of subterranean formations
08/10/2010US7770646 System, method and apparatus for hydrogen-oxygen burner in downhole steam generator
08/10/2010US7770644 Self diverting matrix acid
08/10/2010US7770643 Hydrocarbon recovery using fluids
08/10/2010US7770642 flooding fluid is water and non-polymeric viscoelastic zwitterionic amine oxide surfactant; decrease in interfacial surface tension and a significant increase in viscosity
08/10/2010US7770641 anionic alkylbenzene sulfonic acid surfactant and partially hydrolyzed polyacrylamide solution with co-solvent or co-surfactant; clear and aqueous stable; chaser solution is injected through the injection wellbore
08/10/2010US7770640 Carbon dioxide enriched flue gas injection for hydrocarbon recovery
08/10/2010US7770638 Method for completion, maintenance and stimulation of oil and gas wells
08/10/2010US7770636 Groundwater collecting apparatus
08/10/2010US7770634 Gas lift apparatus for flushing and snubbing well
08/10/2010US7770609 Method of supplying a powdered chemical composition to a wellsite
08/10/2010CA2647825C Apparatus, methods, and systems for extracting petroleum and natural gas
08/10/2010CA2632632C Centrifugal blending system
08/10/2010CA2557381C Co2 miscible optimized hydrocarbon blends and methods of using co2 miscible optimized hydrocarbon blends
08/10/2010CA2547201C Interventionless reservoir control systems
08/10/2010CA2455233C Apparatus for and a method of expanding tubulars
08/10/2010CA2450994C Method and apparatus to control the rate of flow of a fluid through a conduit
08/10/2010CA2413244C Downhole tubular patch, tubular expander and method
08/10/2010CA2405480C Method for production of hydrocarbons from organic-rich rock
08/10/2010CA2372329C Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids
08/06/2010CA2692207A1 Gas-assisted process for in-situ bitumen recovery from carbonate reservoirs
08/06/2010CA2692204A1 Method of gas-cap air injection for thermal oil recovery
08/06/2010CA2691288A1 System and method for controlling fluid injection in a well
08/05/2010WO2010088125A1 Electrical submersible pump rotation sensing using an xy vibration sensor
08/05/2010WO2010088090A1 Making proppant used in gas or oil extraction
08/05/2010WO2010087898A1 Method and system for enhancing a recovery process employing one or more horizontal wellbores
08/05/2010WO2010087733A1 Polymer emulsions and well treatment fluids
08/05/2010WO2010087732A1 Method of preparing polymer-water emulsion and further settling a sticky polymer material in downhole environment
08/05/2010WO2010087719A1 Flow control device and flow control method
08/05/2010WO2010086658A2 Electric submersible pump, tubing and method for borehole production
08/05/2010WO2010048168A3 Flow regulator assembly
08/05/2010WO2010045642A3 Method and apparatus for while-drilling transient resistivity measurements
08/05/2010WO2010045610A3 Enhancing hydrocarbon recovery
08/05/2010US20100197530 Oil field treatment fluids with viscosified brines
08/05/2010US20100193414 Particle collector for a dynamic cyclone, and systems comprising the same
08/05/2010US20100193199 Apparatus and methods for expanding tubular elements
08/05/2010US20100193194 Method For Managing Hydrates In Subsea Production Line
08/05/2010US20100193193 Subterranean system and method for treating and producing oil
08/05/2010US20100193192 Perforating and Jet Drilling Method and Apparatus
08/05/2010US20100193189 Proppant and method for higher production of a well
08/05/2010US20100193188 Integrated system and method for steam-assisted gravity drainage (sagd)-heavy oil production to produce super-heated steam without liquid waste discharge
08/05/2010US20100193184 System and method of monitoring flow in a wellbore
08/05/2010US20100193183 Methods and systems for managing aquifer operation
08/05/2010US20100193182 Method of optimizing production of a well
08/05/2010US20100193180 Method for production, substitution, or mining of gas hydrate
08/05/2010US20100193124 Method of Lining a Well or a Pipe Using an Inflatable Bladder
08/05/2010DE102009033666A1 Method for injecting fluid into crude oil-containing layer of rock or earth, involves discontinuously injecting fluid into crude oil-containing layer of rock or earth for enhancing crude oil production from layer of rock or earth
08/05/2010DE102009006571A1 Method for injecting fluid into crude oil-containing layer of rock or earth, involves pressing fluid into surroundings of line in positioned manner under pressure through injection nozzle
08/05/2010CA2751152A1 Electric submersible pump, tubing and method for borehole production
08/05/2010CA2750472A1 Well jet pumping assembly for degassing coal beds
08/05/2010CA2739580A1 Making proppant used in gas or oil extraction
08/04/2010EP2213832A2 Method for injecting a fluid
08/04/2010EP2212518A1 Completion arrangement
08/04/2010EP2212517A1 Method for operating a compressor device and associated compressor device
08/04/2010EP2212516A2 System, method and apparatus for creating an electric glow discharge
08/04/2010CN201539399U Piston settlement combined protector
08/04/2010CN201539247U Water injection flow testing string device
08/04/2010CN201539244U Well-completion separate-layer fracturing tool assembly
08/04/2010CN201539243U Waterproof armored electric heater in heavy oil wells
08/04/2010CN201539242U CO2 displacement underground anti-corrosion gas-proof device
08/04/2010CN201539241U Multifunctional emergency brake attached to balancing weight
08/04/2010CN201539240U Novel combined assembling bracket upright post for linear oil pumping unit
08/04/2010CN201539239U Automatic reversing indirect traction mechanism of steel wire rope oil pumping machine
08/04/2010CN201539238U Adjustable rail clamping device of steel rope oil sucking machine
08/04/2010CN201539237U Indirect pulling type double-ended wire-cable type oil pumping machine that can be operated independently
08/04/2010CN201539236U Oil pumping machine with external motor
08/04/2010CN201539235U Energy-saving pumping unit with counterweight body
08/04/2010CN201539234U Torque filtering device for oil pumping machine
08/04/2010CN201539221U Safe slips for oil pumping machine test and unload
08/04/2010CN201539215U CO2 displacement concentric double-tube injection technique tubing string
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