| 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) |
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| 01/04/2012 | CN202100241U Slide block type positive torsion oil pumping unit |
| 01/04/2012 | CN202100240U High-pressure wellhead shutdown system of oil pumping unit |
| 01/04/2012 | CN202100239U Long-stroke oil pumping unit with reversing speed reducer |
| 01/04/2012 | CN202100221U Hanging disconnecting device for fracturing pipe column of continuous oil pipe |
| 01/04/2012 | CN102308059A Method for converting hydrates buried in the waterbottom into a marketable hydrocarbon composition |
| 01/04/2012 | CN102308058A Expandable casing with enhanced collapse resistance and sealing capabilit |
| 01/04/2012 | CN102305998A Oil pumping unit closed-loop control method and system based on underground multiparameter real-time monitoring |
| 01/04/2012 | CN102305404A Re-combustion injector of combustor of re-combustion supercritical pressure gas-liquid phase fuel generator |
| 01/04/2012 | CN102305221A Application of steam-water direct mixing pressurization mode in heat tracing of oil exploitation |
| 01/04/2012 | CN102305058A Novel synergistic shattering perforation series charging device |
| 01/04/2012 | CN102305057A Layered steam injection simulation test system and working method thereof |
| 01/04/2012 | CN102305056A Eccentric electric injection allocation device for polymer injection well |
| 01/04/2012 | CN102305055A Air foam flooding shaft bottom foaming process pipe column |
| 01/04/2012 | CN102305054A Underground separated layer water injection control system based on RFID (radio frequency identification device) |
| 01/04/2012 | CN102305053A Two-level hydraulic variable-diameter expansion tool |
| 01/04/2012 | CN102305052A Three-dimensional multiwall combined exploration experimental apparatus for natural gas hydrate and experimental method thereof |
| 01/04/2012 | CN102305051A Temperature-controlled umbrella type gas lift plunger |
| 01/04/2012 | CN102305027A Anti-corrosion thermal-proof oil pipe with thermal barrier coating on surface for thermal recovery of thick oil |
| 01/04/2012 | CN102304355A Bio-enzyme well completion agent and application thereof |
| 01/04/2012 | CN101906536B On-site extraction, drainage and liquid collection process with auxiliary tunnels |
| 01/04/2012 | CN101614120B Special chain drive pumping unit |
| 01/04/2012 | CN101539007B Abrasive jetting device and method for abrasive jetting flow and jetting perforation and multiple fracturing |
| 01/04/2012 | CN101509364B Pendulum guide rod type pumping unit |
| 01/04/2012 | CN101476459B Experimental device and method for simulating real oil well acidation |
| 01/04/2012 | CN101103175B Gravel pack shut tube with control line retention and method for retaining control |
| 01/03/2012 | US8090227 Purging of fiber optic conduits in subterranean wells |
| 01/03/2012 | US8088719 Polymer mixtures for crosslinked fluids |
| 01/03/2012 | US8088718 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 01/03/2012 | US8087462 Process for transporting fracture (“FRAC”) fluid additives to oil and gas wells utilizing ion exchange resin |
| 01/03/2012 | US8087460 Granular electrical connections for in situ formation heating |
| 01/03/2012 | US8087457 Method for a short-term well operation by means of an electrically-powered submersible pumping unit (Kuzmichev method) |
| 01/03/2012 | CA2691126C Devices and methods for utilizing pressure variations as an energy source |
| 01/03/2012 | CA2678059C Proppant and method for higher production of a well |
| 01/03/2012 | CA2666646C A belt shock absorber for tower belt-driven pumping unit |
| 01/03/2012 | CA2660839C A fluid loss control system and method for controlling fluid loss |
| 01/03/2012 | CA2659454C Anchor system for packers in well injection service |
| 01/03/2012 | CA2646472C Method for reducing diameter reduction near ends of expanded tubulars |
| 01/03/2012 | CA2610501C Expandable flow control device |
| 01/03/2012 | CA2597564C One trip cemented expandable monobore liner system and method |
| 01/03/2012 | CA2593607C Degradable polymers for wellbore fluids and processes |
| 01/03/2012 | CA2512615C Actuator for well-head valve or other similar applications and system incorporating same |
| 01/03/2012 | CA2476080C Mono-diameter wellbore casing |
| 01/03/2012 | CA2424719C Hydraulically set liner hanger |
| 01/02/2012 | CA2744765A1 Low temperature hydrocarbon gel ii |
| 12/29/2011 | WO2011163491A2 Apparatus and method for remote actuation of a downhole assembly |
| 12/29/2011 | WO2011163375A1 Modular downhole gauge for use in retrievable electric submersible pump systems with wet-connect |
| 12/29/2011 | WO2011163369A2 A system and method for conformance control in a subterranean reservoir |
| 12/29/2011 | WO2011163305A2 Side pocket barrier valve gas lift and mandrel |
| 12/29/2011 | WO2011163252A1 Gas cushion near or around perforating gun to control wellbore pressure transients |
| 12/29/2011 | WO2011163239A1 Universal subsea oil containment system and method |
| 12/29/2011 | WO2011163156A1 Diaxial power transmission line for continuous dipole antenna |
| 12/29/2011 | WO2011163093A1 Continuous dipole antenna |
| 12/29/2011 | WO2011162938A1 Methods of identifying high neutron capture cross section doped proppant in induced subterranean formation fractures |
| 12/29/2011 | WO2011162919A1 Systems and methods for isolating current flow to well loads |
| 12/29/2011 | WO2011161572A2 Method of treating a wellbore at high temperature in contact with carbon dioxide |
| 12/29/2011 | WO2011161569A2 Composition and methods for oilfield application |
| 12/29/2011 | WO2011161519A1 Combined barrier and lubrication fluids pressure regulation system and unit for a subsea motor and pump module |
| 12/29/2011 | WO2011161517A1 Differential pressure controlled motor and pump barrier fluids pressure regulation system |
| 12/29/2011 | WO2011161516A1 A motor and pump barrier fluids pressure regulation system in a subsea motor and pump module |
| 12/29/2011 | WO2011161515A1 A compensated barrier and lubrication fluids pressure regulation system for a subsea motor and pump module |
| 12/29/2011 | WO2011161513A1 Method and device for estimating cool down in a system |
| 12/29/2011 | WO2011161343A1 Modular device for liquid/liquid gravity separation |
| 12/29/2011 | WO2011161179A2 Apparatus for collecting and transporting fluids in a body of water |
| 12/29/2011 | WO2011160999A2 Method for fighting an oilspill in the aftermath of an underwater oil well blowout and installation for carrying out the method |
| 12/29/2011 | WO2011160199A1 Proppant control in an lpg frac system |
| 12/29/2011 | WO2011160156A2 Apparatus and method for tapping fluid which flows from a source located at the bottom of a body of water |
| 12/29/2011 | WO2011100301A3 Method and composition for enhanced hydrocarbons recovery |
| 12/29/2011 | US20110318106 Apparatus for collecting and transporting fluids in a body of water |
| 12/29/2011 | US20110315401 Side pocket barrier valve gas lift and mandrel |
| 12/29/2011 | US20110315397 Producing hydrocarbon material from a layer of oil sand |
| 12/29/2011 | US20110315386 Process for sequestration of fluids in geological formations |
| 12/29/2011 | US20110315385 Calcium carbonate to increase viscosity of polyacrylamide fluids |
| 12/29/2011 | US20110315384 Gelled foam compositions and methods |
| 12/29/2011 | US20110315383 Gelation acceleration |
| 12/29/2011 | US20110315379 Producing hydrocarbon material from a layer of oil sand |
| 12/29/2011 | US20110315376 Gradient-Based Workflows For Conditioning Of Process-Based Geologic Models |
| 12/29/2011 | US20110315375 System and method for determining downhole fluid parameters |
| 12/29/2011 | US20110315374 Methods of increasing or enhancing oil and gas recovery |
| 12/29/2011 | DE102010038726A1 Method for sealing defective ball valve of e.g. oil pipeline of oil platform, involves sealing defective end section automatically by request of enlarged head-shaped end section at nip-shaped constriction |
| 12/29/2011 | DE102010024934A1 Method for containment of oil beam from ground through opening into water, involves providing rotary water zones around oil beam in rotation, where rotary water zones are generated around beam through drives |
| 12/29/2011 | DE102010021670A1 Device i.e. oil collector system, for attachment on e.g. ship for extracting and collecting crude oil spills in water, has rotary mechanism forming channel and/or swirl by displacement of water, so that oil spills flow into channel |
| 12/29/2011 | CA2840172A1 Flow regulating applied magnetic envelope |
| 12/29/2011 | CA2804737A1 Method for fighting an oilspill in the aftermath of an underwater oil well blowout and installation for carrying out the method |
| 12/29/2011 | CA2804295A1 Method of treating a wellbore at high temperature in contact with carbon dioxide |
| 12/29/2011 | CA2802679A1 Methods of identifying high neutron capture cross section doped proppant in induced subterranean formation fractures |
| 12/29/2011 | CA2802464A1 Systems and methods for isolating current flow to well loads |
| 12/29/2011 | CA2801747A1 Diaxial power transmission line for continuous dipole antenna |
| 12/29/2011 | CA2801709A1 Continuous dipole antenna |
| 12/29/2011 | CA2801657A1 A system and method for conformance control in a subterranean reservoir |
| 12/29/2011 | CA2743363A1 Method and apparatus for acid gas compression |
| 12/28/2011 | EP2400112A1 Producing hydrocarbon material from a layer of oil sand |
| 12/28/2011 | EP2400111A1 Producing hydrocarbon material from a layer of oil sand |
| 12/28/2011 | EP2400108A2 Apparatus and method for fluidically coupling tubular sections and tubular system formed thereby |
| 12/28/2011 | EP2399000A2 Swellable material activation and monitoring in a subterranean well |
| 12/28/2011 | EP2183462B1 Method and apparatus for isolating a jet forming aperture in a well bore servicing tool |
| 12/28/2011 | EP1996792B1 Method and apparatus for hydraulic fracturing and monitoring |
| 12/28/2011 | EP1675768B1 Method and device for recovering petroleum from a tank disposed on a sea bed, particularly a wreck |
| 12/28/2011 | CN202091328U 抽油机曲柄销子防退扣装置 Anti-pumping crank pin back button device |
| 12/28/2011 | CN202090902U 一种连续混配车快速填装粉料装置 A continuous compounding car quickly filled powder device |
| 12/28/2011 | CN202090901U 一种设有在线粘度检测装置的连续混配装置 A continuous compounding device has a line viscosity detection device |