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)
11/2010
11/04/2010DE102006054472B4 Verfahren zur Gewinnung von Kohlendioxid A method for recovering carbon dioxide
11/04/2010CA2760267A1 Apparatus for extracting crude oil from sand
11/03/2010EP2246408A2 Method and composition for the triggered release of polymer-degrading agents for oil field use
11/03/2010EP2245268A1 Method for self-adjusting (autonomously adjusting) the flow of a fluid through a valve or flow control device in injectors in oil production
11/03/2010EP2245267A1 Expansion cone for expandable liner hanger
11/03/2010EP2245266A2 Sand control screen assembly and method for use of same
11/03/2010EP2245265A2 Monitoring downhole production flow in an oil or gas well
11/03/2010EP2245257A2 Systems and methods for improved positioning of pads
11/03/2010EP2122123B1 Method and device for the in-situ extraction of a hydrocarbon-containing substance, while reducing the viscosity thereof, from an underground deposit
11/03/2010CN201621236U Integral type speed varying and reducing mechanism with longitudinal input power
11/03/2010CN201621047U Straight line driving pump
11/03/2010CN201620869U Downhole testing and adjusting instrument with oilfield layered water flooding dual flow meters arranged above and underneath
11/03/2010CN201620865U Oil-gas separation buffer tank capable of controlling gas output
11/03/2010CN201620864U Production equipment for manufacturing quartz fracturing sand specially used for oil field
11/03/2010CN201620863U Non welding line steel ball dropping-feeder
11/03/2010CN201620862U Down-hole atomization device for drainage and gas production of natural gas well
11/03/2010CN201620861U Thick oil steam heating treatment device
11/03/2010CN201620860U Closed heat carrier circulating pipe suspension gear
11/03/2010CN201620859U Injection technology device for high-pressure oil displacement agent in ultra-low penetrating oil field
11/03/2010CN201620858U Polymer anti-block eccentric injection allocation device
11/03/2010CN201620857U Eccentric injection allocation well plug capable of realizing downhole shut-in
11/03/2010CN201620856U Device for increasing water injection position
11/03/2010CN201620855U Adjustable water nozzle for low-water injection rate water injection wells of oil fields
11/03/2010CN201620854U Double-element split-type plunger gas-lift tool
11/03/2010CN201620853U Constant-pressure gasproof pipe column of multilayer mining single pump
11/03/2010CN201620852U Underground separate layer oil production pipe column under ground remote control
11/03/2010CN201620851U Differential pressure type downhole choke
11/03/2010CN201620850U Self-injection oil extraction and gas well anti-blocking oil nozzle
11/03/2010CN201620849U Detonation wave graded exploder
11/03/2010CN201620848U Vertical well orientation multi-pulse increase-benefit perforating device
11/03/2010CN201620847U Flat-trough metal sieve pipe of multi-branch horizontal well
11/03/2010CN201620846U Portable PVC sieve pipe used for multi-branch horizontal well
11/03/2010CN201620845U Pressure-controlled sliding sleeve type screen pipe
11/03/2010CN201620844U Self-generation wireless tension sensor
11/03/2010CN201620843U Hydraulic pumping unit for petroleum
11/03/2010CN201620842U Automatic unloading liquid drainage pumping tube
11/03/2010CN201620841U Oil extractor operating parameter real-time adjusting and control device
11/03/2010CN201620840U Circulation slide sleeve
11/03/2010CN201620839U Pressurized operation production string for natural gas well
11/03/2010CN201620838U Centering adjusting and locking device of oil extractor horsehead
11/03/2010CN201620837U Perforation and electric pump combined testing string
11/03/2010CN201620836U Exploiting device using high-pressure gas well to inject intermittent on-off gas well
11/03/2010CN201620835U Thermal recovery type liquid nitrogen evaporating system
11/03/2010CN201620834U Shear connecting rod beamless oil extractor
11/03/2010CN201620833U Adjusting device for belt tension of oil pumping unit
11/03/2010CN201620832U Thread cap for rapidly maintaining beam-pumping unit crank pin
11/03/2010CN201620831U Novel belt type oil extractor antitheft press disc
11/03/2010CN201620830U Turbine worm type balancing block mover
11/03/2010CN201620829U Unloading tool for friction reversing pumping unit
11/03/2010CN201620828U Jet drainage device for cluster wells
11/03/2010CN201620827U Brake ferrule antitheft device of beam-pumping unit
11/03/2010CN201620826U Bottom-water reservoir oil-water zoned string
11/03/2010CN201620822U Versatile downhole sand control flow controller of gas well
11/03/2010CN201620816U Deep well fracture acidizing packer
11/03/2010CN201620814U Constant-flow adjustable multifunctional stopper
11/03/2010CN201620813U Steady flow adjustable blanking plug
11/03/2010CN201620798U Diameter-variable seal assembly
11/03/2010CN201620791U Thermal production steam injecting string drop collector
11/03/2010CN201620783U Slip-type underground foaming device
11/03/2010CN201620777U Anti-release device of oil extractor link mechanism
11/03/2010CN201620764U Continuous bump acidified tubular column
11/03/2010CN201618445U Distributed air floatation three-phase separator
11/03/2010CN1946918B Inhibiting effects of sloughing in wellbores
11/03/2010CN101878350A Downhole, single trip, multi-zone testing system and downhole testing method using such
11/03/2010CN101878349A Method of radially expanding a tubular element
11/03/2010CN101878348A Apparatus for adjustably controlling the inflow of production fluids from a subterranean well
11/03/2010CN101878347A Method for operating a compressor device and associated compressor device
11/03/2010CN101876242A Foam-generating method for experiment and foam generator thereof
11/03/2010CN101876241A Method for improving water drive recovery factor of thick positive rhythm reservoir
11/03/2010CN101876240A Fully automatic oil extraction equipment
11/03/2010CN101876239A Pumping unit system and power saving control method thereof
11/02/2010US7825073 as gelling agent, viscosifier; for use in industrial, oilfield, geothermal, coal, coal bed methane, and/or subterranean operations
11/02/2010US7825053 Sintered spherical pellets
11/02/2010US7824132 Automatically adjustable caisson clamp
11/02/2010US7823647 Process for foaming a wet hydrocarbon composition
11/02/2010US7823645 Downhole inflow control device with shut-off feature
11/02/2010US7823644 In-situ method of producing oil shale, on-shore and off-shore
11/02/2010US7823642 Pumping into a well bore a water in oil emusion having insoluble pozzolan silica particles in the water and calcium hydroxide in the oil to react to form calcium silicate cement particleswhich fill the pores of the formation; increasing permeability of the formation; antifouling agents; fluid flow
11/02/2010US7823638 Sound source for stimulation of oil reservoirs
11/02/2010US7823637 Delayed acting gravel pack fluid loss valve
11/02/2010US7823635 Downhole oil and water separator and method
11/02/2010US7823632 Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
11/02/2010CA2562084C One trip completion system
11/02/2010CA2508453C Expandable composite tubulars
11/02/2010CA2497276C Method of treating subterranean formations with porous ceramic particulate materials
11/02/2010CA2489674C Ported velocity tube for gas lift operations
10/2010
10/30/2010CA2702556A1 Apparatus and method for mobile coal sampling
10/30/2010CA2701859A1 Determining elastic and fluid flow properties of a fractured reservoir
10/30/2010CA2665058A1 Apparatus and method for mobile coal sampling
10/30/2010CA2665035A1 A method and apparatus for separating downhole oil and water and reinjecting separated water
10/28/2010WO2010124303A2 Processes and systems for treating oil and gas wells
10/28/2010WO2010123886A2 Method and apparatus to enhance oil recovery in wells
10/28/2010WO2010123795A1 Wellbore perforating devices
10/28/2010WO2010122516A2 Method for extracting hydrocarbons from a tank and hydrocarbon extraction facility
10/28/2010WO2010096349A3 Apparatus and system to actuate and pump well bore liquids from hydrocarbon wells
10/28/2010WO2010093569A3 Vapor collection and barrier systems for encapsulated control infrastructures
10/28/2010WO2010089558A3 Apparatus and method for treating zones in a wellbore
10/28/2010WO2010088874A3 Method for producing natural gas from hydrocarbon hydrates while simultaneously storing carbon dioxide in geological formations
10/28/2010WO2010080780A3 Sand decanter
10/28/2010WO2010077822A3 System and method for slug control
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