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)
04/2010
04/28/2010CN201443379U Selective mining process unit adopting single pump pressure balance method
04/28/2010CN201443378U Oil and gas well inner blind hole perforating gun
04/28/2010CN201443377U Oil well flush joint tubular column running-pulling tool
04/28/2010CN201443376U Inner container type slotted screen pipe
04/28/2010CN201443375U Novel ground filtering device
04/28/2010CN201443374U Movable two-way sliding rail device of walking-beam pumping unit
04/28/2010CN201443373U Rack-type balance weight mover
04/28/2010CN201443372U Balance block regulator of walking-beam pumping unit
04/28/2010CN201443371U Hydraulic displacing device for pumping unit
04/28/2010CN201443370U Long-stroke energy-saving oil extractor
04/28/2010CN201443369U Reversing mechanism of chain oil pumping machine
04/28/2010CN201443368U Rope-suspended connector device of sealing box-body oil extractor
04/28/2010CN201443367U Oil pumping well power cylinder type hydraulic device
04/28/2010CN201443366U Novel chain type oil pumping machine
04/28/2010CN201443365U Dynamic balancing swabbing system
04/28/2010CN201443356U Ground automatic high pressure regulation relief valve device
04/28/2010CN201443350U Anti-dropping centering steam injection packer for thick oil well
04/28/2010CN201443347U Positioning plugging continuous impinger for eccentric water distributor
04/28/2010CN201443345U Spraying and lifting device for oil pipe
04/28/2010CN201443341U Passive type multifunctional wellhead backflow dredging and compensating device
04/28/2010CN201443332U Uniform steam injection and wellhead test device of horizontal well
04/28/2010CN201443329U Hydraulic power assisted test device
04/28/2010CN201443320U Drilling fluid vacuum degassing device
04/28/2010CN201443313U Anti-bending polished rod eye of oil pumping polished rod
04/28/2010CN201443312U Hairy braid break-proof beam hanger of walking-beam pumping unit
04/28/2010CN201442876U Fuel high pressure burning direct evaporation oil field sewage water device
04/28/2010CN201442248U Motor belt pulley assembling and disassembling device for oil pumping unit
04/28/2010CN201442063U Connecting rod expansion and contraction device for pumping unit
04/28/2010CN1667237B Tubing anchor
04/28/2010CN1563664B Well of coal-bed gas
04/28/2010CN101699029A High-pressure clamped sealing gas injection tool being used for leak detection of tube column and having function of trip prevention
04/28/2010CN101699026A Hyposmosis oil pool microbial oil recovery method
04/28/2010CN101699025A Method for regulating and controlling microbial enhanced oil recovery
04/28/2010CN101699023A High temperature-resistance external casing packer
04/28/2010CA2642188A1 Downhole well pump
04/27/2010US7707013 Method for estimating minimum miscibility enrichment
04/27/2010US7704927 injecting stable oil-in-water emulsion acid fracturing fluid comprising about 1 vol. % to about 20 vol. % sulfonate ester, about 1 pound to about 400 pounds fluoride salt per 1000 gallons acid fracturing fluid, partial monolayers of proppant at loading of about 0.01 lb/ft2 to about 0.4 lb/ft2, and water
04/27/2010US7703537 Recovery of hydrocarbons
04/27/2010US7703536 Gas assisted lift system
04/27/2010US7703531 Multifunctional nanoparticles for downhole formation treatments
04/27/2010US7703530 Scale inhibitors compatible with sandstone acidizing
04/27/2010US7703529 Gel capsules for solids entrainment
04/27/2010US7703528 Reducing CO2 emissions from oilfield diesel engines
04/27/2010US7703526 Apparatus and method for characterizing a reservoir
04/27/2010US7703525 Well perforating and fracturing
04/27/2010US7703522 Methods of underground formation consolidation
04/27/2010US7703521 Polymeric microspheres as degradable fluid loss additives in oilfield applications
04/27/2010US7703520 Sand control screen assembly and associated methods
04/27/2010US7703519 Combined hydrogen production and unconventional heavy oil extraction
04/27/2010US7703518 Dust control system for transferring dry material used in subterranean wells
04/27/2010US7703517 Downhole sampling tool and method for using same
04/27/2010US7703516 Stimulating oilfields using different scale-inhibitors
04/27/2010US7703513 Wax barrier for use with in situ processes for treating formations
04/27/2010US7703510 Interventionless multi-position frac tool
04/27/2010US7703509 Gas anchor and solids separator assembly for use with sucker rod pump
04/27/2010US7703508 Wellbore filter for submersible motor-driver pump
04/27/2010US7703331 Instrumented tabular device for transporting a pressurized fluid
04/27/2010CA2639294C Perforating gun assembly
04/27/2010CA2590829C Compositions and methods of using same in producing heavy oil and bitumen
04/27/2010CA2565837C Non frangible perforating gun system
04/27/2010CA2502548C Process for the cleaning of oil and gas wellbores
04/27/2010CA2470449C Method for making a sealed tubular joint with plastic expansion
04/27/2010CA2401744C Use of downhole high pressure gas in a gas-lift well
04/27/2010CA2310198C Hold down apparatus for progressing cavity pump
04/23/2010CA2683834A1 Hydrocarbon reservoir treatment method with hydrocarbons
04/23/2010CA2642143A1 Hydrocarbon reservoir treatment method with hydrocarbons
04/22/2010WO2010045642A2 Method and apparatus for while-drilling transient resistivity measurements
04/22/2010WO2010045616A2 Method of hydrocarbon recovery
04/22/2010WO2010045610A2 Enhancing hydrocarbon recovery
04/22/2010WO2010045343A2 Methods of simultaneously dissolving calcium carbonate, silica, and silicate minerals in subterranean formations
04/22/2010WO2010045103A1 Systems and methods for treating a subsurface formation with electrical conductors
04/22/2010WO2010045098A1 Circulated heated transfer fluid systems used to treat a subsurface formation
04/22/2010WO2010045077A2 Shape memory polyurethane foam for downhole sand control filtration devices
04/22/2010WO2010045074A2 Crossover sub with erosion resistant inserts
04/22/2010WO2010044817A1 Method for removing a consumable downhole tool specification
04/22/2010WO2010044697A1 Method for hydraulically fracturing a low permeability subsurface formation
04/22/2010WO2010043941A1 Exposed hollow carrier perforation gun and charge holder
04/22/2010WO2010043239A1 Gas evolving oil viscosity diminishing compositions for stimulating the productive layer of an oil reservoir
04/22/2010WO2010043034A1 Well liner segments for in situ petroleum upgrading and recovery, and method of in situ upgrading and recovery
04/22/2010WO2010018356A3 Fluid supply system
04/22/2010WO2010018355A3 Top suction fluid end
04/22/2010WO2010016897A3 Apparatus and methods for controlling and communicating with downhole devices
04/22/2010WO2009155270A3 Producing gaseous hydrocarbons from hydrate capped reservoirs
04/22/2010WO2009151680A3 Cable loss compensation in an electrical submersible pump system
04/22/2010WO2009148831A3 Methods of treating a hydrocarbon-bearing formation, a well bore, and particles
04/22/2010WO2009009412A3 Producing resources using heated fluid injection
04/22/2010US20100096147 Methods and Apparatuses For Enhanced In Situ Hydrocarbon Production
04/22/2010US20100096146 Method for producing crude oil
04/22/2010US20100096143 Method for Installing Wellbore String Devices
04/22/2010US20100096141 Jet Pump With a Centrifugal Pump
04/22/2010US20100096139 Method for Intervention Operations in Subsurface Hydrocarbon Formations
04/22/2010US20100096138 Controlling the Pressure Within an Annular Volume of a Wellbore
04/22/2010US20100096137 Circulated heated transfer fluid heating of subsurface hydrocarbon formations
04/22/2010US20100096136 oil well perforators
04/22/2010US20100096131 Wiper Plug Perforating System
04/22/2010US20100096130 Toe-to-heel gravel packing methods
04/22/2010US20100096129 Method of hydrocarbon recovery
04/22/2010US20100096128 Enhancing hydrocarbon recovery
04/22/2010US20100096127 Flow regulator assembly
04/22/2010US20100096126 Low pressure recovery process for acceleration of in-situ bitumen recovery
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