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)
02/2014
02/26/2014CN103608302A Treating oil contaminated wastewater
02/26/2014CN103605874A Non-dimensional coefficient fracturing optimization design method
02/26/2014CN103603936A Novel oil pumping unit chain type transmission mechanism
02/26/2014CN103603660A Steam sampling system and method
02/26/2014CN103603658A Oil production experimental device capable of simulating reservoir pressure supply
02/26/2014CN103603654A Rotating magnetic field ranging guidance simulation test bed for SAGD technology
02/26/2014CN103603649A Oil gas throttling, heat-preserving and separation metering integrated equipment
02/26/2014CN103603648A Underground gasification device
02/26/2014CN103603647A Underground gasifier and application method thereof
02/26/2014CN103603646A Method, device and system for determining internal combustion mined-out areas of underground coal gasification furnace
02/26/2014CN103603645A Winterizing agents for oil base polymer slurries and method for making and using same
02/26/2014CN103603644A Fracturing method of recyclable fracturing liquid for sandstone gas reservoir fracturing construction
02/26/2014CN103603643A Coal bed gas U-shaped well staged fracturing exploitation technology
02/26/2014CN103603642A Method for using CO2 (carbon dioxide) to displace high-salinity bittern deep in ground
02/26/2014CN103603641A Injection allocator
02/26/2014CN103603640A Chemical feed system for drilling mud system and chemical feed method of chemical feed system
02/26/2014CN103603639A Stratum deep high-salinity brine exploitation and heat utilization system
02/26/2014CN103603638A Natural gas hydrate CO2 substitution extraction method combined with depressurization
02/26/2014CN103603637A Experimental device and system for exploiting super heavy oil by using gas assistant SAGD (Steam Assisted Gravity Drainage)
02/26/2014CN103603636A Fixed-face perforating module bullet holder for oil-gas well
02/26/2014CN103603635A Novel double-chain twin-well pumping unit
02/26/2014CN103603634A Double-well pumping unit balancing device
02/26/2014CN103603633A Efficient pumping unit
02/26/2014CN103233713B Method and process for extracting shale oil gas through oil shale in situ horizontal well fracture chemical destructive distillation
02/26/2014CN102434141B Method for mining sylvite in underground carnallite ore
02/26/2014CN102027193B Promotion of methane hydrate decomposition and methane gas collecting system
02/26/2014CN102022105B Large composite acid fracturing method of fracture cave type carbonate rock reservoir
02/26/2014CN101936154B Method for guiding drilling and bridging of horizontal coal bed methane well
02/26/2014CN101691838B Ultralow permeability oil filed water injection well multicomponent chemical microemulsion pressure reduction and injection gain method
02/26/2014CN101595274B System and method for facilitating downhole operations
02/26/2014CN101328792B System and method for creating a gravel pack
02/25/2014US8657019 Hydrocarbon recovery enhancement methods using low salinity carbonated brines and treatment fluids
02/25/2014US8657014 Artificial lift system and method for well
02/25/2014US8657002 Degradable fiber systems for stimulation
02/25/2014US8657000 Systems and methods for enhanced waterfloods
02/25/2014US8656999 Water treatment using a direct steam generator
02/25/2014US8656998 In situ heating for reservoir chamber development
02/25/2014US8656997 Systems and methods for producing oil and/or gas
02/25/2014US8656996 Systems and methods for enhanced waterfloods
02/25/2014US8656992 Stimulation of biogenic gas generation in deposits of carbonaceous material
02/25/2014CA2781721C Multi-zone fracturing completion
02/25/2014CA2744620C Well servicing fluid
02/25/2014CA2673060C Radiation processing of heavy oils
02/21/2014CA2787814A1 Radiator configuration
02/20/2014WO2014028804A1 Environmentally beneficial recycling of brines in the process of reducing friction resulting from turbulent flow
02/20/2014WO2014028674A1 System, method, and apparatus for managing fracturing fluids
02/20/2014WO2014028522A1 Initiating production of clathrates by use of thermosyphons
02/20/2014WO2014028497A2 Use of underground access to improve steam distribution in sagd operations
02/20/2014WO2014028432A1 Competition between transverse and axial hydraulic fractures in horizontal well
02/20/2014WO2014028321A1 System and method for delivery of oilfield materials
02/20/2014WO2014028319A1 System and method for delivery of oilfield materials
02/20/2014WO2014028317A1 System and method for delivery of oilfield materials
02/20/2014WO2014028316A1 System and method for delivery of oilfield materials
02/20/2014WO2014028235A1 Drill pipe perforator apparatus and method of use
02/20/2014WO2014028137A1 Preconditioning for bitumen displacement
02/20/2014WO2014027925A1 Self-expanding downhole filter
02/20/2014WO2014027895A1 Multiphase pressure boosting pump
02/20/2014WO2014027245A2 Puncher tool
02/20/2014WO2014026515A1 Method and apparatus for improving steam dryness of steam injection boiler
02/20/2014US20140051610 Environmentally beneficial recycling of brines in the process of reducing friction resulting from turbulent flow
02/20/2014US20140048534 Dual Tank Structure with Integral Secondary Containment
02/20/2014US20140048279 Swellable Screen Assembly with Inflow Control
02/20/2014US20140048278 Subsea well assembly and associated method
02/20/2014US20140048273 Method, system, and composition for producing oil
02/20/2014US20140048272 Low-viscosity treatment fluids for transporting proppant
02/20/2014US20140048271 Sliding sleeve valve and method for fluid treating a subterranean formation
02/20/2014US20140048270 Methods and Devices for Hydraulic Fracturing Design and Optimization: A Modification to Zipper Frac
02/20/2014US20140048269 Fluid Injection System and Method
02/20/2014US20140048268 Method for Hydraulically Fracturing a Well Using An Oil-Fired Frac Water Heater
02/20/2014US20140048262 Methods for Pillar Placement in Fracturing
02/20/2014US20140048261 Treatment Fluids Comprising a Stabilizing Compound Having Quaternized Amine Groups and Methods for Use Thereof
02/20/2014US20140048260 Hydration Acceleration Surfactants in Conjunction with High Molecular Weight Polymers, and Methods and Compositions Relating Thereto
02/20/2014US20140048259 Preconditioning for bitumen displacement
02/20/2014US20140048258 Drilling composition, process for its preparation, and applications thereof
02/20/2014US20140048255 Automated relief valve control system and method
02/20/2014US20140048250 Valve with shuttle
02/19/2014EP2698498A1 Method, rock drilling rig and control apparatus
02/19/2014EP2697475A1 Opening a conduit cemented in a well
02/19/2014EP2697472A1 Device for measuring and controlling on-line viscosity at high pressure
02/19/2014EP2697334A1 Method for production of proppants
02/19/2014CN203443561U Oil pumping unit horsehead suspension point projection detection apparatus
02/19/2014CN203441484U Experimental facility for evaluating steam reforming feature of reservoir rock
02/19/2014CN203441464U Gas-liquid separation gas collecting device
02/19/2014CN203441463U Natural gas well sand separating device
02/19/2014CN203441462U Combustion heater used for oil-gas separation
02/19/2014CN203441461U Oil-gas separator used for combustion heater
02/19/2014CN203441460U Sand cleaning device for bottom water bag of metering station separator
02/19/2014CN203441459U High-pressure abrasive slotting device
02/19/2014CN203441458U Rotating signal navigator
02/19/2014CN203441457U Pipe-in-pipe thickened oil steam injection well mouth device
02/19/2014CN203441456U Bidirectional circulating exchanger used on screw pump water circulating heating system
02/19/2014CN203441455U Segmental steam injection device of horizontal well of oil field
02/19/2014CN203441454U Thermal recovery multifunctional heat injection pipe string
02/19/2014CN203441453U Small-sized automatic oil-well casing gas pressurization conveying skid
02/19/2014CN203441452U Underground safety control device of thermal production well
02/19/2014CN203441451U Roller type rotary cannon loading support
02/19/2014CN203441450U Sand filter cover device for pumping unit load shedding device
02/19/2014CN203441449U Adjustable sliding sleeve sieve tube for layered oil production
02/19/2014CN203441448U Sand-prevention effect evaluation device for horizontal well sieving pipe
02/19/2014CN203441447U Visual horizontal well gravel filling simulation test device
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