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)
12/2012
12/13/2012WO2012170412A2 Force sensing device and methods for preparing and uses thereof
12/13/2012WO2012170333A1 Oil containment recovery dome
12/13/2012WO2012170157A2 Hydrocarbon recovery through gas production control for noncondensable solvents or gases
12/13/2012WO2012169986A1 Method and device for collecting fluid and/or gaseous extraction products
12/13/2012WO2012168088A2 Method for extracting shale gas
12/13/2012WO2012134639A3 Esp with offset laterally loaded bearings
12/13/2012WO2012088115A3 Method and apparatus for drilling a zero-radius lateral
12/13/2012WO2011138589A3 High pressure manifold trailer and methods and systems employing the same
12/13/2012WO2011117576A3 Laminar phase ring for fluid transport applications
12/13/2012WO2005086614A3 Expandable tubular
12/13/2012WO2005028803A3 Expandable tubular
12/13/2012US20120312754 Control of subsea cyclone
12/13/2012US20120312561 Tubular assembly
12/13/2012US20120312560 Sealing apparatus and method for forming a seal in a subterranean wellbore
12/13/2012US20120312555 Controllably releasable shifting tool
12/13/2012US20120312545 Systems and methods for co-production of geothermal energy and fluids
12/13/2012US20120312541 Apparatus and Method for Processing Fluids from a Well
12/13/2012US20120312538 Device and method for obtaining, in particular in situ, a substance containing carbon from an underground deposit
12/13/2012US20120312537 System and Method For Enhancing The Production of Hydrocarbons
12/13/2012US20120312536 Multi-Stage Downhole Hydraulic Stimulation Assembly
12/13/2012US20120312534 Enhanced hydrocarbon recovery through gas production control for noncondensable solvents or gases in sagd or es-sagd operations
12/13/2012US20120312533 Additives for improving hydrocarbon recovery
12/13/2012US20120312532 Additives for improving hydrocarbon recovery
12/13/2012US20120312531 Well Treatment Using Electric Submersible Pumping System
12/13/2012US20120312529 Reducing trips in well operations
12/13/2012US20120312528 Junction Box to Secure and Electronically Connect Downhole Tools
12/13/2012CA2838525A1 Single and multi-chamber wellbore pumps for fluid lifting
12/13/2012CA2837708A1 Hydrocarbon recovery through gas production control for noncondensable solvents or gases
12/12/2012EP2532831A2 Multi-Stage Downhole Hydraulic Stimulation Assembly
12/12/2012EP2532790A1 Method for producing an underwater foundation element, adjustment head for an underwater foundation element and underwater working assembly
12/12/2012EP2532212A1 A system and method for induction heating a helical rotor using a coil
12/12/2012EP2531694A1 Method for using dynamic target region for well path/drill center optimization
12/12/2012EP2531692A2 Flow control device and flow control method
12/12/2012CN202598078U Maintainer for beam hanger steel wire rope for pumping unit
12/12/2012CN202597614U Belt oil pumping machine motor adjustment jackscrew
12/12/2012CN202597560U Theftproof electromagnetic brake of oil pumping unit
12/12/2012CN202597036U Separate-extraction separate-discharge oil well pump
12/12/2012CN202597035U Fluid feedback draining and mining pump used for coal bed gas development
12/12/2012CN202596722U Physical simulation experiment device of fractured-vuggy oil deposit independent karst cave unit
12/12/2012CN202596719U Movable high-temperature and high-pressure gauge connector
12/12/2012CN202596705U Vehicle-mounted single well measuring device
12/12/2012CN202596703U High-accuracy flow testing device for injection well
12/12/2012CN202596699U Combined type gravity desanding device
12/12/2012CN202596698U Underground multistage differential pressure switch device
12/12/2012CN202596697U Fracturing wellhead ball catching device
12/12/2012CN202596696U Hollow rod one-way air lifting drainage gas production device
12/12/2012CN202596695U Downhole gas-injection tubular column
12/12/2012CN202596694U Self-lock type eccentric water distribution blanking plug
12/12/2012CN202596693U Stepless differential adjusting closed water tap plug
12/12/2012CN202596692U Underground intelligent water distribution nozzle device
12/12/2012CN202596691U Working barrel used for gas lifting and water injection
12/12/2012CN202596690U Pressurized water injection device
12/12/2012CN202596689U Oil well liquid drainage joint-operation device
12/12/2012CN202596688U Quantitative blending adjusting device of oil production wellhead process assembly valve
12/12/2012CN202596687U Power unit of wind power generation system for exploiting shale gas in hydrofracture way
12/12/2012CN202596686U Solar photovoltaic power generation and power supply device for exploiting shale gas in hydraulic fracturing mode
12/12/2012CN202596685U Wind-solar hybrid electricity generating and supplying device for exploiting shale gas in hydraulic fracturing mode
12/12/2012CN202596684U Testing process pipe column for casing pipe well completion horizontal well multistage subsection production and water detection
12/12/2012CN202596683U Hair plait lubricating device for dual horse head pumping unit
12/12/2012CN202596682U Beam pumping unit steel wire rope lubricating device
12/12/2012CN202596681U Telescopic balance weight device of walking-beam oil pumping unit
12/12/2012CN202596680U Fixed type oil fishing machine
12/12/2012CN202596679U Fully automatic oil discharger
12/12/2012CN202596678U Multi-functional lifting frame used as oil fishing machine rack
12/12/2012CN202596677U Non-beam pumping unit for ocean platform
12/12/2012CN202596676U Cluster well field closed oil test production device
12/12/2012CN202596675U Tubular column for sand and dirt block prevention in oil well
12/12/2012CN202596674U Intelligent adjustment device for balance of walking-beam pumping unit
12/12/2012CN202596673U Electric control hydraulic drive automatic regulation balancing device for oil pumping unit
12/12/2012CN202596649U Oil extraction well mouth converter
12/12/2012CN202596626U High-inclination well eccentric delivery support device
12/12/2012CN202596589U Process column for transforming well completion hierarchically with casing pipes and sliding sleeves
12/12/2012CN202595052U SAGD (Steam Assisted Gravity Drainage) extracted liquid oil-water fast separation and super heavy oil long-distance conveying system
12/12/2012CN102822446A Method and system for predicting the effect of microbes injected into an oil-bearing reservoir
12/12/2012CN102822445A Method for determining formation fluid control events in a borehole using a dynamic annular pressure control system
12/12/2012CN102822444A Wear-resistant separating device for removing sand and rock particles
12/12/2012CN102818250A Method and device for improving steam dryness of steam injection boiler
12/12/2012CN102817633A Device for draining gas by deep hole crack control blasting and precracking method
12/12/2012CN102817604A CO2 refracturing process technology for low-permeability gas well
12/12/2012CN102817603A Method communicating ground with underground mining coal bed gas
12/12/2012CN102817602A On-line profile control method and device for polymer flooding oil field
12/12/2012CN102817601A Method and device for performing on-line profile control on polymer driving oil field by applying crosslinking agent
12/12/2012CN102817600A Jet flow pressure regulating device of water injection well
12/12/2012CN102817599A Method and device for dual power energy-saving pressurization and pressure reduction water distribution
12/12/2012CN102817598A Thick oil dissolving gas-drive infilling exploitation physical simulation experimental facility and thick oil dissolving gas-drive encryption mining physical simulation experimental method
12/12/2012CN102817597A Three-layer insertion pipe mechanical water exploration and plugging method and water exploration and plugging pipe column
12/12/2012CN102817596A Ocean combustible ice mining device and method
12/12/2012CN102817595A Balance block adjusting device
12/12/2012CN102817594A Drainage gas recovery method and device of horizontal well
12/12/2012CN102817593A Swing link type non-beam pumping unit
12/12/2012CN102817592A Constant pressure gas releasing and recycling device of oil well casing with sampling and anti-blocking functions
12/12/2012CN102817591A Lifting chain-type oil pumping machine
12/12/2012CN102817590A Direct-drive motor twin-well oil pumping unit
12/12/2012CN102817589A Winded direct-drive motor oil pumping unit
12/12/2012CN102817588A Oil pumping unit dynamic balance timely automatic regulating device and control method thereof
12/12/2012CN102817587A Direct drive motor pumping unit
12/12/2012CN102817583A Multi-position valves for fracturing and sand control and associated completion methods
12/12/2012CN102817568A Method for exploiting crude oil from heavy oil reservoir by using borehole seismic auxiliary gas foam flooding
12/12/2012CN101949282B Oil displacing method for residual oil/asphalt emulsion
12/12/2012CN101880630B Method for increasing oil recovery ratio by utilizing symbiotic reproduction and complex metabolism and microbial preparation
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