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)
05/2010
05/19/2010CN201474686U Small workover well automatic perfusion measuring device
05/19/2010CN201474683U Energy-saving device in heavy oil thermal recovery
05/19/2010CN201474682U Water distributor
05/19/2010CN201474681U Oil-water collection and re-injection device
05/19/2010CN201474680U Directional perforating gun for inclined shaft
05/19/2010CN201474679U Wellhead constant-flow filter
05/19/2010CN201474678U Sand control pipe string for sand washing and packing
05/19/2010CN201474677U Energy-saving type oil pumping main machine device
05/19/2010CN201474676U Bridge two-channel production joint system
05/19/2010CN201474675U Mobile well head gas recycling device
05/19/2010CN201474674U Hair plait lubricating device of pumping unit
05/19/2010CN201474673U Oil-producing pipe column for sectional water control of horizontal well
05/19/2010CN201474672U Underground electromagnetic oil drain gun
05/19/2010CN201474668U Gas lift valve
05/19/2010CN201474664U Pressure-adjustable gas safety recovery unit
05/19/2010CN201474658U Pulley hoop tool
05/19/2010CN201474652U Three-wing multi-function thermal recovery blowout preventer
05/19/2010CN201474633U Breakage-prevention suspension rope device
05/19/2010CN201474622U Open type sand prevention pipe column
05/19/2010CN201474608U Coal-bed-gas production-increase and gas water-inrush-prevention horizontal well
05/19/2010CN1970991B Method for metering oil production yield and analyzing and optimizing operating condition of oil well, and system thereof
05/19/2010CN101709775A Method for removing blockage of oil duct of oil pumping unit reduction gearbox and preventing fault
05/19/2010CN101709696A Moving cylinder efficient tubular oil pump
05/19/2010CN101709637A Air lifting device for thermal recovery
05/19/2010CN101709636A Microwave heating system for lowering viscosity of produced liquid in oil well
05/19/2010CN101709635A Lead-in device of branch mechanism for six-stage branch well
05/19/2010CN101709634A Adjustable balance up-connected steel cable structure type beam-pumping unit
05/19/2010CN101709629A Reverse circulation aerodynamic cavitation method for coalbed methane well and equipment
05/19/2010CN101144612B Skid-mounted type fuel oil supercritical pressure direct-flow gas injection boiler
05/19/2010CN101082272B Giant-scale tower type long stroke pumping unit
05/19/2010CN101033684B Mechanical plug-removal oil extraction device
05/19/2010CN101029561B Front reversal beam pumping unit
05/19/2010CN101016835B Thermal production well filling vapor and nitrogen foam profile control technique
05/18/2010US7717182 Artificial lift with additional gas assist
05/18/2010US7717181 Artificial lift system
05/18/2010US7717178 Screen coupler for modular screen packs
05/18/2010US7717177 Energized fluid for generating self-cleaning filter cake
05/18/2010US7717175 Methods of improving heavy oil production
05/18/2010US7717174 Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation
05/18/2010US7717173 Methods of improving oil or gas production with recycled, increased sodium water
05/18/2010US7717171 Moving hydrocarbons through portions of tar sands formations with a fluid
05/18/2010CA2644168A1 Agitator tool for progressive cavity pump
05/18/2010CA2551569C Downhole gas compressor
05/18/2010CA2530969C Water shut off method and apparatus
05/18/2010CA2374115C Energy efficient method and apparatus for stimulating heavy oil production
05/18/2010CA2339556C Drill string telemetry with insulator between receiver and transmitter
05/14/2010WO2010053876A2 Heater and method for recovering hydrocarbons from underground deposits
05/14/2010WO2010052423A2 Method for installing an operating rig for a fluid in a body of water with a traction unit
05/14/2010WO2010052422A2 Method for assembling an operating rig for a fluid in a body of water and associated operating rig
05/14/2010WO2010052108A1 Separation method and apparatus for immiscible fluids
05/14/2010WO2010006327A3 Method of making wellbore moineau devices
05/14/2010WO2009053343A3 Method of radially expanding a tubular element in a wellbore provided with a control line
05/14/2010CA2742875A1 Separation method and apparatus for immiscible fluids
05/14/2010CA2742501A1 Method for installing an operating rig for a fluid in a body of water with a traction unit
05/14/2010CA2742499A1 Method for assembling an operating rig for a fluid in a body of water and associated operating rig
05/14/2010CA2741861A1 Heater and method for recovering hydrocarbons from underground deposits
05/14/2010CA2684782A1 Seal arrangement for expandable tubulars
05/13/2010US20100116511 Systems and methods for downhole sequestration of carbon dioxide
05/13/2010US20100116508 Hydraulic Pump-Drive Downhole Fluids Pump With Linear Driver
05/13/2010US20100116507 Mobile equipment for riserless drilling, well intervention, subsea construction and the like from a vessel
05/13/2010US20100116505 Control Package Container
05/13/2010US20100116500 Method of Fracturing a Subterranean Formation at Optimized and Pre-determined Conditions
05/13/2010US20100116495 Porous tubular structures
05/13/2010US20100116491 System and method for producing a well using a gas
05/13/2010CA2821503A1 Thermal recovery of shallow bitumen through increased permeability inclusions
05/13/2010CA2686050A1 Thermal recovery of shallow bitumen through increased permeability inclusions
05/12/2010EP2184437A2 Swellable apparatus and method
05/12/2010EP2184436A2 Wellbore apparatus and method
05/12/2010EP2184094A2 Conveyor apparatus
05/12/2010EP2183464A2 Methods of increasing fracture resistance in low permeability formations
05/12/2010EP2183462A1 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool
05/12/2010DE202009016682U1 Vorrichtung zur Soleentleerung bei der Gaserstbefüllung von Gasspeicherkavernen Device for Sole emptying in the gas filling of gas storage caverns
05/12/2010CN201466504U Digital integral control cabinet of oil pumping unit
05/12/2010CN201461870U Eccentric wear prevention device for planetary gear of decelerator
05/12/2010CN201461722U Counter-lock anti-loosing crank pin of oil pumping unit
05/12/2010CN201461705U Special anti-theft fixing device for oil pumping unit motor
05/12/2010CN201461542U Guide wheel pre-tensioning device of electric submersible pump
05/12/2010CN201461429U Novel submersible direct drive screw pump
05/12/2010CN201461347U Balance device of reciprocating submersible motor
05/12/2010CN201461346U Two-way plunger piston oil-extraction electric pump
05/12/2010CN201461345U Multi-support hydraulic seal-sealing plunger pump
05/12/2010CN201461344U Novel anti-breaking oil well pump
05/12/2010CN201461341U Double-layer individually collection oil pump
05/12/2010CN201460985U Monitoring device for acidizing operation of oil well
05/12/2010CN201460865U Well logging and regulating instrument of two flow meters arranged from top to bottom
05/12/2010CN201460859U Oil-gas separation tube
05/12/2010CN201460858U Automatic drain valve for gas well gas-water separator
05/12/2010CN201460857U Cutting closed storage device for underbanlanced drilling of sulfur-containing formation
05/12/2010CN201460856U Combined gas and sand anchor
05/12/2010CN201460855U Eccentric gas lift valve working tube
05/12/2010CN201460854U Acidizing fracturing measureswaste liquid treatment device of oil-water well
05/12/2010CN201460853U Lossless fracturing string
05/12/2010CN201460852U Steam generator for oilfield steam injection
05/12/2010CN201460851U Skid-mounted steam distribution metering station
05/12/2010CN201460850U Automatic counter-flow resisting device
05/12/2010CN201460849U Two-stage water injection speed controller
05/12/2010CN201460848U Ground water distributor
05/12/2010CN201460847U Viscosity reduction device adopting wake for water injection
05/12/2010CN201460846U Automatic pressure releasing anti-blocking oil nozzle
05/12/2010CN201460845U Axial regulating type proration regulator
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