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)
03/2014
03/26/2014CN103670391A Displacement experiment fluid control method and displacement experiment device
03/26/2014CN103670361A Gas injection device, coal underground gasification system and coal underground gasification method
03/26/2014CN103670360A Method for removing oil-gas well barite blocking and adopted working solution
03/26/2014CN103670359A Method for nondegradable gel breaking of vegetable gelatin fracturing fluid
03/26/2014CN103670358A Fracture extension judging method of hydraulic fracturing crack on sand shale thin interbed geological interface
03/26/2014CN103670357A Method for crack communication, channel processing and underground gasification of underground mineral contained organic carbon reservoir
03/26/2014CN103670356A Temperature-variable tracer composite for combustion in situ, distribution map of temperature fields of combustion in situ, production method of distribution map and development method of combustion in situ
03/26/2014CN103670355A Remote monitoring water injection-polymer injection device
03/26/2014CN103670354A Combined injection-production compensation device
03/26/2014CN103670353A Steam assisted gravity drainage technology of double-branch horizontal well
03/26/2014CN103670352A Automatic control method for removal of gas well deposition liquid
03/26/2014CN103670351A Steam flooding mining method of heavy oil reservoir
03/26/2014CN103670350A Variable intensity water injection exploitation method for carbonate fracture-cavity oil reservoir
03/26/2014CN103670349A Bridge type concentric intelligent testing and distributing layered injection device and technology
03/26/2014CN103670348A Evaluation method and device for oil well production characteristics
03/26/2014CN103670347A Method for producing methane by converting carbon dioxide through methanobacterium thermaggregans in activated reservoir
03/26/2014CN103670346A Oil-gas well focusing perforation delayed detonation technology
03/26/2014CN103670345A Novel pumping unit
03/26/2014CN103670344A Double-chain reversing oil pumping method and oil pumping unit
03/26/2014CN103670343A Hydraulic oil pumping drive device
03/26/2014CN103670342A Downhole viscous liquid pumping device
03/26/2014CN103670341A Digitalized energy-saving pumping unit based on wifi network cloud service
03/26/2014CN103670340A M-shaped tractive digitalized energy-saving oil pumping unit
03/26/2014CN103670339A Belt and steel wire rope combined traction digitized energy-saving pumping unit
03/26/2014CN103670338A Method for extracting coalbed methane and coal together
03/26/2014CN103670337A Split plunger device for non-shut-in continuous production
03/26/2014CN103670336A Medium- and shallow-gas well drainage technique pipe and drainage method
03/26/2014CN103670335A Power unit of hydraulic pumping unit and hydraulic pumping unit including power unit
03/26/2014CN103670329A Tube-in-tube thickened oil steam wellhead device
03/26/2014CN103321612B Water salvaging type drainage and gas production machine
03/26/2014CN102913208B Method for building bushing inner-sieve-tube artificial natural gas migration passage between gas reservoirs
03/26/2014CN102913207B Method for building inner sieve-tube outer gravel-filled artificial natural gas migration passage
03/26/2014CN102900401B Method for building sleeve perforating manmade natural gas migration channels between gas pools
03/26/2014CN102464977B Oil-displacing method for improving recovery ratio of high-temperature high-salt oil pool
03/26/2014CN102410523B Horizontal pulverized coal combustion oil field gas injection boiler
03/26/2014CN102364041B Oil extraction method for establishing oil permeable water stop sieve by filling fusheng sand in horizontal well fracture
03/26/2014CN102242621B Negative pressure de-plugging and oil extraction process and device
03/26/2014CN102128030B Wellbore vicinity shearing simulating device with multistage cylindrical barrel with sand-prevention compacted sand bodies
03/26/2014CN102121380B Combined cylindrical barrel near wellbore area shear simulation device
03/26/2014CN101942971B Elastic expansion device
03/26/2014CN101915072B Method for extracting coal bed gas in stable mining region by ground well drilling
03/26/2014CN101790620B Drilling method using sand control liner
03/25/2014US8680027 Method and composition for treatment of a well
03/25/2014US8678777 Dense phase pump for dry particulate material
03/25/2014US8678513 Traveling undercut solution mining systems and methods
03/25/2014US8678095 Gas assisted lift system
03/25/2014US8678090 Methods for treating hydrocarbon-bearing formations with fluorinated polymer compositions
03/25/2014US8678087 Wellbore laser operations
03/25/2014US8678086 Method and apparatus for a downhole gas generator
03/25/2014US8678085 Well control operational and training aid
03/25/2014US8678084 Reorienting annular debris barrier
03/25/2014US8678082 Hydraulic oil well pumping apparatus
03/25/2014US8678080 Water processing systems and methods
03/25/2014US8678079 Fixed swirl inducing blast liner
03/25/2014CA2778843C Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications
03/25/2014CA2763721C Permeability flow balancing within integral screen joints and method
03/25/2014CA2757125C Establishing communication between well pairs in oil sands by dilation with steam or water circulation at elevated pressures
03/25/2014CA2750472C Well jet pumping assembly for degassing coal beds
03/25/2014CA2734808C Method and system for jointly producing and processing hydrocarbons from natural gas hydrate and conventional hydrocarbon reservoirs
03/25/2014CA2706598C System, method and apparatus for creating an electric glow discharge
03/25/2014CA2702196C Hybrid hydraulic-electric ram pumping unit with downstroke energy recovery
03/25/2014CA2701485C Process and apparatus to improve reliability of pinpoint stimulation operations
03/25/2014CA2664117C Method and assembly for producing oil and/or gas through a well traversing stacked oil and/or gas bearing earth layers
03/25/2014CA2657996C Method for comparing and back allocating production
03/25/2014CA2630337C Controlling the pressure within an annular volume of a wellbore
03/21/2014CA2825429A1 Procedure of preparation of microemulsion to improve the flow of heavy hydrocarbons
03/20/2014WO2014043464A1 Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore
03/20/2014WO2014043191A1 Treatment fluids comprising magnetic surfactants and methods relating thereto
03/20/2014WO2014043164A2 Well treatment device, method, and system
03/20/2014WO2014043059A1 Integrated motor bearing and rotor
03/20/2014WO2014043050A1 Systems and methods for monitoring oil/gas separation processes
03/20/2014WO2014042909A1 Systems and methods for monitoring oil/gas separation processes
03/20/2014WO2014042867A1 Systems, methods, and apparatuses for in situ monitoring of cement fluid compositions and setting processes thereof
03/20/2014WO2014042842A1 Produced water treatment and solids precipitation from thermal treatment blowdown
03/20/2014WO2014042824A1 Treatment of produced water with seeded evaporator
03/20/2014WO2014042809A1 Treatment of produced water concentrate
03/20/2014WO2014042792A1 Acid-in-oil emulsion compositions and methods for treating hydrocarbon-bearing formations
03/20/2014WO2014042785A1 Process for deoxygenation and chemical reduction of spent in-situ leach water from uranium mining
03/20/2014WO2014042633A1 System and method for safely conducting explosive operations in a formation
03/20/2014WO2014042630A1 Subsea compressor or pump with hermetically sealed electric motor and with magnetic coupling
03/20/2014WO2014042626A1 Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid
03/20/2014WO2014042552A1 Shapeable particles in oilfield fluids
03/20/2014WO2014042551A1 Acid fracturing with shapeable materials
03/20/2014WO2014042548A1 Hydraulic fracturing with shapeable particles
03/20/2014WO2014042541A1 Improvements in, or related to, float valve hold open devices and methods therefor
03/20/2014WO2014041123A1 Drop device
03/20/2014WO2014015324A3 Self cleaning piezoelectric chemical apparatus and method
03/20/2014WO2014014390A3 Method for developing deposits and extracting oil and gas from shale formations
03/20/2014WO2013139601A3 A flow control device and method
03/20/2014WO2013086278A3 Method and acidizing tool for deep acid stimulation using ultrasound
03/20/2014WO2013062871A3 Horizontal borehole mining system and method
03/20/2014WO2013043663A8 Dual purpose observation and production well
03/20/2014WO2011146082A3 Methods and systems for co2 sequestration
03/20/2014US20140076631 Perforation Gun String Energy Propagation Management with Tuned Mass Damper
03/20/2014US20140076581 Apparatus and A Method For Securing and Sealing A Tubular Portion to Another Tubular
03/20/2014US20140076580 Alternative Path Gravel Pack System and Method
03/20/2014US20140076579 Gas lift valve with mixed bellows and floating constant volume fluid chamber
03/20/2014US20140076577 System and method for reducing pressure fluctuations in an oilfield pumping system
03/20/2014US20140076576 Method and system for protecting a conduit in an annular space around a well casing
03/20/2014US20140076572 Thickened viscoelastic fluids and uses thereof
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