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)
09/2012
09/12/2012EP2496789A2 Method of mitigating corrosion rate of oilfield tubular goods
09/12/2012CN202431295U Gas-slag separation integrated temporary pumping device for coal mine underground drilling
09/12/2012CN202431261U Oil field horizontal well multi-section press cracking slide sleeve and opening tool
09/12/2012CN202431260U Gas drive oil extraction device being convenient in detection
09/12/2012CN202431259U Rapid connecting and fixing device of orientation perforator
09/12/2012CN202431258U Flow string for oil well
09/12/2012CN202431257U Combined type energy-saving oil pumping machine
09/12/2012CN202431256U Screw-type oil pumping device
09/12/2012CN202431255U Double-layer oscillating arm type double-well pumping unit
09/12/2012CN202431254U Reel-type double-well pumping unit
09/12/2012CN102667058A A multi-step solvent extraction process for heavy oil reservoirs
09/12/2012CN102667057A Integrated enhanced oil recovery process
09/12/2012CN102667056A Downhole-adjustable flow control device for controlling flow of a fluid into a wellbore
09/12/2012CN102667055A Method and system for lining a section of a wellbore with an expandable tubular element
09/12/2012CN102667053A Wireline-adjustable downhole flow control devices and methods for using same
09/12/2012CN102667051A Downhole tool for borehole cleaning or for moving fluid in a borehole
09/12/2012CN102666777A Water flooding method for secondary hydrocarbon recovery
09/12/2012CN102661271A Rodless pump for single-core oil-submersible cable linear motor
09/12/2012CN102661141A Method and device for metering oil in oil-water separator
09/12/2012CN102661140A Different-diameter porous fracture sand jet
09/12/2012CN102661139A Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology
09/12/2012CN102661138A Liquid-cooling and gas-cooling air-diesel gas generators and application thereof
09/12/2012CN102661137A Constant-current constant-temperature self-injection oil well chemical dosing device
09/12/2012CN102661136A Pumping unit with two-time stroke-doubling balancing
09/12/2012CN102661135A Full-automatic oil discharger
09/12/2012CN102661134A Multifunctional lifting frame serving as oil dredging machine rack
09/12/2012CN102661133A Oil pumping unit device capable of driving chains and well rod to move along fan-shaped edge
09/12/2012CN102661132A Gas well swabbing car
09/12/2012CN102660245A Pre-coated film propping agent, preparation method of the pre-coated film propping agent and sand prevention method adopting the pre-coated film propping agent
09/12/2012CN102183796B Testing device and method for simulating backflow of propping agent
09/12/2012CN102127519B High-temperature-resistant gene engineering bacterium for producing extracellular water-insoluble polysaccharide and application thereof
09/12/2012CN101818635B Method for exploiting natural gas hydrates by using high-pressure thermal jet
09/12/2012CN101608536B Passive type multifunctional well head backflow dredging compensating device
09/11/2012US8261838 Artificial lift system
09/11/2012US8261834 Well treatment using electric submersible pumping system
09/11/2012US8261833 Methods and compositions for consolidating particulate matter in a subterranean formation
09/11/2012US8261832 Heating subsurface formations with fluids
09/11/2012US8261831 Apparatus and methods for the recovery of hydrocarbonaceous and additional products from oil/tar sands
09/11/2012US8261825 Methods for improving the productivity of oil producing wells
09/11/2012US8261824 Methods for forming a permeable and stable mass in a subterranean formation
09/11/2012US8261823 Integrated in situ retorting and refining of oil shale
09/11/2012US8261822 Flow regulator assembly
09/11/2012US8261821 Downhole multi-parallel hydrocyclone separator
09/11/2012US8261820 Drilling and opening reservoirs using an oriented fissure
09/11/2012CA2711206C Stuffing box for progressing cavity pump drive
09/11/2012CA2692691C Detecting acoustic signals from a well system
09/11/2012CA2692683C Oscillating fluid flow in a wellbore
09/11/2012CA2692678C Heated fluid injection using multilateral wells
09/11/2012CA2691187C High pressure, high voltage penetrator assembly
09/11/2012CA2636574C Method and apparatus for use in a wellbore
09/11/2012CA2543963C Hydrocarbon recovery from impermeable oil shales
09/11/2012CA2532165C Expanding a tubular element to different inner diameters
09/11/2012CA2480237C Pumping method and system for oil wells
09/10/2012CA2781721A1 Multi-zone fracturing completion
09/07/2012WO2012119092A2 Synthetic formation evaluation logs based on drilling vibrations
09/07/2012WO2012119090A1 Methods and systems for zonal isolation in wells
09/07/2012WO2012119058A2 Downhole fluid injections, co2 sequestration methods, and hydrocarbon material recovery methods
09/07/2012WO2012118888A2 Methods for integrated natural gas purification and products produced therefrom
09/07/2012WO2012118617A2 Dispersing separated hydrocarbon gas into separated oil during surface well testing for improved oil mobility
09/07/2012WO2012118571A2 Hydraulic fracture diverter apparatus and method thereof
09/07/2012WO2012087516A3 Downhole release joint with radially expandable member
09/07/2012WO2012065896A3 Bop lock down
09/07/2012WO2009076763A8 Systems and methods for low emission hydrocarbon recovery
09/07/2012CA2828727A1 Methods for integrated natural gas purification and products produced therefrom
09/07/2012CA2827655A1 In situ combustion following sagd
09/07/2012CA2825300A1 Hydraulic fracture diverter apparatus and method thereof
09/06/2012US20120222870 Downhole Fluid Injection Systems, CO2 Sequestration Methods, and Hydrocarbon Material Recovery Methods
09/06/2012US20120222868 Expansion Cone Assembly for Setting a Liner Hanger in a Wellbore Casing
09/06/2012US20120222867 Hydrocarbons
09/06/2012US20120222863 Alkanesulfonic acid microcapsules and use thereof in deep wells
09/06/2012US20120222861 Mechanical Liner Drilling Cementing System
09/06/2012US20120222860 Selective placement of conformance treatments in multi-zone well completions
09/06/2012US20120222859 Dispersing Separated Hydrocarbon Gas into Separated Oil During Surface Well Testing for Improved Oil Mobility
09/06/2012US20120222853 Method of deploying and powering an electrically driven device in a well
09/06/2012US20120222852 Formation fluid sampling control
09/06/2012US20120222422 Methods for integrated natural gas purification and products produced therefrom
09/05/2012EP2495393A2 Downhole apparatus
09/05/2012EP2495392A2 Determining fluid rate and phase information for a hydrocarbon well using predictive models
09/05/2012EP2495391A1 Apparatus and method for processing fluids from a well
09/05/2012EP2494146A1 Plug retainer and method for wellbore fluid treatment
09/05/2012EP2494145A1 Automated hydrocarbon reservoir pressure estimation
09/05/2012EP2494144A2 Subsea pumping system
09/05/2012EP2494143A2 Downhole chemical delivery system and method
09/05/2012EP2493818A1 Fluid treatment apparatus and method
09/05/2012CN202417476U Automatically continuous oil measuring device with U-shaped tube and integrator
09/05/2012CN202417467U Underground liquid-sand separator
09/05/2012CN202417466U Multi-cavity oil-gas separator for oil extraction
09/05/2012CN202417465U Blade electricity generation stable cyclone separating device
09/05/2012CN202417464U Oil-gas separation automatic control device
09/05/2012CN202417463U Novel hydraulic sandblasting separate layer acid treatment fracturing tool
09/05/2012CN202417462U Pressure-guide sand blast anchoring packer for multi-layer fracturing of immovable tubular column
09/05/2012CN202417461U Fracturing skid groups
09/05/2012CN202417460U Hydraulic sand blasting perforation energy-collecting and crushing device
09/05/2012CN202417459U Chemical oil displacement experimental device used at oxygen isolating condition
09/05/2012CN202417458U Intelligent cable type measuring and adjusting water injection device for water injection well
09/05/2012CN202417457U Flowback preventing hollow layered water injection pipe column
09/05/2012CN202417456U Automatic conversion device for independent water injection and independent oil exploration of double branch wells
09/05/2012CN202417455U High pressure nozzle for hydraulic perforation
09/05/2012CN202417454U High-pressure jetting hose dropping-prevention device
09/05/2012CN202417453U 限位装置 Limit device
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