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)
03/2012
03/22/2012CA2807852A1 Gravity drainage startup using rf & solvent
03/22/2012CA2807850A1 Heavy oil recovery using sf6 and rf heating
03/22/2012CA2807842A1 Simultaneous conversion and recovery of bitumen using rf
03/22/2012CA2807729A1 Enhanced recovery and in situ upgrading using rf
03/22/2012CA2807714A1 Cyclic steam stimulation using rf
03/22/2012CA2807713A1 Inline rf heating for sagd operations
03/22/2012CA2807663A1 Rf fracturing to improve sagd performance
03/22/2012CA2807361A1 Polymer foam cell morphology control and use in borehole filtration devices
03/21/2012EP2431567A2 Methods for producing oil and/or gas
03/21/2012EP2431564A1 Method for drilling and completing wells
03/21/2012EP2431328A1 Apparatus for recovering co2 and method therefor
03/21/2012EP2430317A1 Liquid pump apparatus and method
03/21/2012EP2430287A2 Fracturing with telescoping members and sealing the annular space
03/21/2012EP2430116A2 Scintillator crystal materials, scintillators and radiation detectors
03/21/2012EP2430111A2 Methods of using viscoelastic surfactant gelled fluids to pre-saturate underground formations
03/21/2012EP2245266B1 Sand control screen assembly and method for use of same
03/21/2012EP2191099B1 Downhole valve for preventing zonal cross-flow
03/21/2012EP1984599B1 Kerogen extraction from subterranean oil shale resources
03/21/2012CN202170986U 油田抽油机用减速器润滑装置 Oil pumping unit reducer lubrication device
03/21/2012CN202170790U 井口轻油回收装置 Wellhead gas oil recovery
03/21/2012CN202170789U 滑套承接器 Sleeve undertake control
03/21/2012CN202170788U 厚储层层内分段压裂工艺管柱 Thick layers of segments within the reservoir fracturing string
03/21/2012CN202170787U 一种重力泄水辅助蒸汽驱井网结构 A gravity drain auxiliary steam flooding Well Structure
03/21/2012CN202170786U 油井智能加药装置 Well intelligent dosing device
03/21/2012CN202170785U 一种后置式井下节流器 A post-mounted downhole choke
03/21/2012CN202170784U 油气井全通径射孔夹层枪总成 Full Bore wells perforating gun assembly sandwich
03/21/2012CN202170783U 自洁式双层过滤筛管 Self-cleaning filter screens bunk
03/21/2012CN202170782U 加重球防砂器 Sand is heavier ball
03/21/2012CN102388201A Method and apparatus for on-site nitrate production for a water processing system
03/21/2012CN102388200A Use of underground gas storage to provide a flow assurance buffer between interlinked processing units
03/21/2012CN102383968A Single-cycle-waterway heat recovering method
03/21/2012CN102383828A Refection reducing and outburst eliminating method for deep-hole hydraulic fracture driving gas shallow hole extraction
03/21/2012CN102383775A Double-cock ball throwing device and ball throwing method
03/21/2012CN102383774A Biological enzyme fracturing technology for oil fields and oil wells
03/21/2012CN102383773A Method for exploiting coal bed gas by physical regional pressure relief
03/21/2012CN102383772A Well drilling type oil gas preparing system through gasification and dry distillation of oil shale at normal position and technical method thereof
03/21/2012CN102383771A Method for producing natural gas in organism coal bed
03/21/2012CN102383770A Light oil mixing and water injection treatment multifunctional device for super heavy oil recovery
03/21/2012CN102383769A Power compensation type hydraulic pressurizing water injection system
03/21/2012CN102383768A Two-phase multi-material online injection water-plugging profile regulating method and equipment
03/21/2012CN102383767A Mountable backing and sand prevention throttle used under well
03/21/2012CN102383766A Self-heating natural gas hydrate preventing device
03/21/2012CN102383765A Full-balanced gearwheel-type oil pumping unit and process with function of wireless remote monitoring
03/21/2012CN102383764A Sand-blocking-preventing oil-extraction production tubular column
03/21/2012CN102383760A Design method of sliding sleeve switch
03/21/2012CN102383759A Multifunctional blowout preventer specially used for steam-driven well
03/21/2012CN102382699A Natural gas supercharging device at well head and method thereof
03/21/2012CN102116167B Ground and underground three-dimensional extraction system of coal seam gas
03/21/2012CN101943161B Waterable oil-well pump plunger
03/21/2012CN101824579B Jam skeleton preparation method for perforating gun
03/21/2012CN101580705B Foaming agent with low gas liquid ratio foam for common heavy oil reservoir and injection method thereof
03/21/2012CN101298835B Controllable acid distributing tube and controllable acid distributing method
03/21/2012CN101210487B Design method for increasing recovery efficiency technique
03/21/2012CA2752787A1 Wellbore fluid removal systems and methods
03/20/2012US8136608 Mitigating perforating gun shock
03/20/2012US8136601 Power lift generator
03/20/2012US8136600 Vertical annular separation and pumping system with integrated pump shroud and baffle
03/20/2012US8136592 Methods for producing oil and/or gas
03/20/2012US8136590 Systems and methods for producing oil and/or gas
03/20/2012US8136586 Safety clamp for walking beam compressor
03/20/2012US8136584 Single trip tubing punch and setting tool
03/20/2012US8136439 Explosive well tool firing head
03/20/2012US8136216 Method of coupling expandable tubing sections
03/20/2012CA2753317A1 Improved process for assisted recovery of oil using the a technique known as asp
03/20/2012CA2752461A1 Enhanced permeability subterranean fluid recovery system and methods
03/20/2012CA2749593C Monobore construction with dual expanders
03/20/2012CA2714763A1 Systems and methods for providing a concrete-reinforced bore
03/20/2012CA2662935C System and method for selective activation of downhole devices in a tool string
03/20/2012CA2565332C Methods for controlling particulate migration
03/20/2012CA2441368C Alternate path multilateral production/injection
03/17/2012CA2752264A1 Environmentally friendly base fluids and methods for making and using same
03/17/2012CA2752261A1 Complementary surfactant compositions and methods for making and using same
03/17/2012CA2716975A1 A device for treating a bottom-hole formation zone of a wellbore
03/16/2012CA2752621A1 Method and composition to divert fluids at high temperatures
03/15/2012WO2012033638A2 Series configured variable flow restrictors for use in a subtrerranean well
03/15/2012WO2012033632A1 Flush-enabled controlled flow drain
03/15/2012WO2012033621A2 Method and apparatus for selective acid diversion in matrix acidizing operations
03/15/2012WO2012031344A1 Improvement to alternating piston pump
03/15/2012WO2011159919A3 In situ methanogenesis modeling and risk analysis
03/15/2012US20120061100 Liner hanger
03/15/2012US20120061099 Anchor for a tubing string and method
03/15/2012US20120061092 Method For Spatial Filtering of Electromagnetic Survey Data
03/15/2012US20120061090 Landing string assembly
03/15/2012US20120061089 Apparatus and device for delivering fluid downhole and increasing well production
03/15/2012US20120061086 Method of Preparing Polymer-Water Emulsion and Further Settling a Sticky Polymer Material In Downhole Environment
03/15/2012US20120061085 Increasing Enhanced Oil Recovery Value From Waste Gas
03/15/2012US20120061084 Detecting and Correcting Unintended Fluid Flow Between Subterranean Zones
03/15/2012US20120061083 Wellbore fluid and methods of treating an earthen formation
03/15/2012US20120061082 Sealing of thief zones
03/15/2012US20120061081 Rf fracturing to improve sagd performance
03/15/2012US20120061080 Inline rf heating for sagd operations
03/15/2012US20120061077 Sonic Enhanced Oil Recovery System and Method
03/15/2012CA2810919A1 Improvement for alternative piston pump
03/15/2012CA2810517A1 Apparatus and method for heating of hydrocarbon deposits by rf driven coaxial sleeve
03/15/2012CA2809423A1 Series configured variable flow restrictors for use in a subterranean weell
03/15/2012CA2809209A1 Process for recovery of processing liquids
03/14/2012EP2428639A2 Arrangement of isolation sleeve and cluster sleeves having pressure chambers
03/14/2012EP2428637A2 Expandable centralizer for expandable pipe string
03/14/2012EP2428616A2 Method and apparatus for installing marine equipment, especially offshore wind turbines
03/14/2012EP2427748A1 Method for sampling and analysis of production from a subsea well for measuring salinity of produced water and also volumetric ratio between liquid fractions
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