| 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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| 03/07/2013 | US20130056206 Valve for hydraulic fracturing through cement outside casing |
| 03/07/2013 | US20130056205 Systems, materials, and methods for recovering material from bedrock using supercritical argon compositions |
| 03/07/2013 | US20130056204 Dual Function Proppants |
| 03/07/2013 | US20130056203 Reducing sulfide in oil reservoir production fluids |
| 03/07/2013 | US20130056201 Method for evaluating hydrocarbon-containing subterrean formations penetrated by a directional wellbore |
| 03/07/2013 | US20130056199 Lewis acid as gelation retarder for crosslinkable polymer compositions |
| 03/07/2013 | US20130056195 System and method for downhole electrical transmission |
| 03/07/2013 | CA2846458A1 A connector arrangement for a subsea pipeline |
| 03/07/2013 | CA2846243A1 Diverter spool and methods of using the same |
| 03/07/2013 | CA2845840A1 Self-suspending proppants for hydraulic fracturing |
| 03/07/2013 | CA2845671A1 Determining perforation orientation |
| 03/07/2013 | CA2845487A1 Disconnecting tool |
| 03/07/2013 | CA2840368A1 Systems, materials, and methods for recovering material from bedrock using supercritical argon compositions |
| 03/06/2013 | EP2565372A1 Apparatus and method for penetrating cement surrounding a tubular |
| 03/06/2013 | EP2565371A1 Method for maintaining a gas volume in an underground geological reservoir by nitrogen injection |
| 03/06/2013 | EP2565365A1 Disconnecting tool |
| 03/06/2013 | EP2564339A2 Machines, systems, computer-implemented methods, and computer program products to test and certify oil and gas equipment |
| 03/06/2013 | EP2564067A1 A continuous rod pump drive system |
| 03/06/2013 | EP2564020A2 Method and system for treating a subterranean formation |
| 03/06/2013 | EP2564019A1 Pumping system |
| 03/06/2013 | EP2564018A1 Liner hanger fluid diverter tool and related methods |
| 03/06/2013 | CN202768794U Safety device of oil pumping unit belt |
| 03/06/2013 | CN202768756U Guide rod mechanism switchover-free type mechanical reversing apparatus |
| 03/06/2013 | CN202767967U Self-circulation gas lift drainage gas recovery process device suitable for well outside station |
| 03/06/2013 | CN202767966U Staged fracturing experiment simulating shaft |
| 03/06/2013 | CN202767965U Layering steam injection uniform steam-distributing tubular column |
| 03/06/2013 | CN202767964U Ground intelligent profile control water checking filling system |
| 03/06/2013 | CN202767963U Eccentric bottom-hole regulator |
| 03/06/2013 | CN202767962U Movable type spraying device used for low-pressure gas well |
| 03/06/2013 | CN202767961U Separated recovery device capable of adjusting layers arbitrarily |
| 03/06/2013 | CN202767960U Reusable oil nozzle |
| 03/06/2013 | CN202767959U Device for modularly adjusting flow rate |
| 03/06/2013 | CN202767958U 102-type high hole-density perforator |
| 03/06/2013 | CN202767957U Fracture high pressure packing and filling mechanism |
| 03/06/2013 | CN202767956U Vertical type pumping unit well repair abdicating organization |
| 03/06/2013 | CN202767955U Swing rod type non-beam pumping unit |
| 03/06/2013 | CN202767954U Intelligent reversing direct drive tubing pump oil pumping device |
| 03/06/2013 | CN202767953U Reciprocating motion converter for oil well |
| 03/06/2013 | CN202767952U Balancing torque automatic regulating device of beam-balanced pumping unit |
| 03/06/2013 | CN202767951U High-pressure gas injection safety control skid-mounted device |
| 03/06/2013 | CN202767944U Pitching sliding sleeve used for sidetrack horizontal well staged fracturing |
| 03/06/2013 | CN202767938U Adjustable plug |
| 03/06/2013 | CN102959805A Safety device |
| 03/06/2013 | CN102959429A System, apparatus, and method for monitoring subsea flow device |
| 03/06/2013 | CN102959244A Mud pump |
| 03/06/2013 | CN102959181A Fracturing system |
| 03/06/2013 | CN102959180A Equipment for the conveying and recovery of hydrocarbons from and underwater well for the extraction of hydrocarbons, under uncontrolled release conditions |
| 03/06/2013 | CN102953726A Method and device for water drive oilfield advantage channel recognition |
| 03/06/2013 | CN102953725A Horizontal well logging dynamic lifting device |
| 03/06/2013 | CN102953719A Drag type packer-less hydraulic jet pulsating acid fracturing device and method |
| 03/06/2013 | CN102953718A Composite alternative acid dissolving method of hyposmosis oil layer |
| 03/06/2013 | CN102953717A Method for water-flooding abandoned condensate gas reservoirs |
| 03/06/2013 | CN102953716A Parallel double-tube separate layer water injection string |
| 03/06/2013 | CN102953715A Layered oil production device |
| 03/06/2013 | CN102953714A Underground intelligent layered pressure controlled oil extraction method |
| 03/06/2013 | CN102953713A Completion design method by bottom water reservoir horizontal well segregated water control |
| 03/06/2013 | CN102953712A Upper tilting perforation diversion anchored fracturing umbrella ditch gravity oil production method |
| 03/06/2013 | CN102953711A Device and method for horizontal gas well to drain liquid and produce gas |
| 03/06/2013 | CN102953710A Intelligent fixed-torque pumping unit |
| 03/06/2013 | CN102953688A Heat insulation oil tube with vacuum coating |
| 03/06/2013 | CN102952534A Low-damage fracturing fluid and fracturing method |
| 03/06/2013 | CN102704922B Supercritical carbon dioxide carrying sand flow mechanism researching experiment device |
| 03/06/2013 | CN102157051B Stopping alarm for oil well |
| 03/06/2013 | CN101994495B Electromagnetic drive underground high-power resonant wave displacement device and method |
| 03/06/2013 | CN101975055B Method for remediating trouble well of coal bed gas multi-branch horizontal well |
| 03/06/2013 | CN101975050B Construction method of coal bed gas horizontal well and vertical drainage well in multi-objective layer geologic environment |
| 03/06/2013 | CN101967967B Artificially resonant wave strengthened oil displacement dynamic simulation experimental device and experimental method |
| 03/06/2013 | CN101956546B Method for improving crossing-hole gas extraction concentration |
| 03/06/2013 | CN101915079B Integrated de-plugging yield increasing process |
| 03/06/2013 | CN101871341B Method for improving thick oil recovery ratio |
| 03/06/2013 | CN101655002B Oil layer-section oil casing pipe for exploiting thick oil by method of combustion drive and production method thereof |
| 03/06/2013 | CN101343992B Horizontal well drillable quartz sand filter tube sand-prevention assorted column jacket |
| 03/06/2013 | CA2789537A1 Method for exploiting an oil deposit based on a position selection technique of the wells to be drilled |
| 03/05/2013 | US8389446 Swellable polymers with hydrophobic groups |
| 03/05/2013 | US8387699 Green coal bed methane fracturing fluid compositions, methods of preparation and methods of use |
| 03/05/2013 | US8387697 Gas evolving oil viscosity diminishing compositions for stimulating the productive layer of an oil reservoir |
| 03/05/2013 | US8387696 Delayed breaker |
| 03/05/2013 | US8387692 Method and apparatus for a downhole gas generator |
| 03/05/2013 | US8387691 Low pressure recovery process for acceleration of in-situ bitumen recovery |
| 03/05/2013 | US8387690 Completion method for horizontal wells in in situ combustion |
| 03/05/2013 | US8387688 Method of forming subterranean barriers with molten wax |
| 03/05/2013 | CA2533844C Apparatus and method for creating a vortex flow |
| 03/01/2013 | CA2788166A1 Valve for hydraulic fracturing through cement outside casing |
| 03/01/2013 | CA2788164A1 Valve for hydraulic fracturing through cement outside casing |
| 02/28/2013 | WO2013028755A2 Method of hydrocarbon resource recovery including actuator operated positioning of an rf sensor and related apparatus |
| 02/28/2013 | WO2013028753A2 Method of hydrocarbon resource recovery including actuator operated positioning of an rf applicator and related apparatus |
| 02/28/2013 | WO2013028752A2 Method for hydrocarbon resource recovery by repairing a failed hydrocarbon recovery arrangement |
| 02/28/2013 | WO2013028645A2 Coal seam gas fracking systems and methods |
| 02/28/2013 | WO2013028457A2 Method and apparatus for selectively controlling fluid flow |
| 02/28/2013 | WO2013028456A2 Composite inflow control device |
| 02/28/2013 | WO2013028383A2 Chemical injection system |
| 02/28/2013 | WO2013028343A1 Wellbore servicing fluids and methods of making and using same |
| 02/28/2013 | WO2013028329A2 Systems and methods for gravel packing wells |
| 02/28/2013 | WO2013028298A2 Fracturing process to enhance propping agent distribution to maximize connectivity between the formation and the wellbore |
| 02/28/2013 | WO2013028091A1 Downhole pump assembly |
| 02/28/2013 | WO2013026421A1 Underground coal gasification method |
| 02/28/2013 | WO2012177680A3 Well-based fluid communication control assembly |
| 02/28/2013 | WO2012166643A3 Safety valve system for cable deployed electric submersible pump |
| 02/28/2013 | WO2012166418A3 Safety valve system for cable deployed electric submersible pump |
| 02/28/2013 | WO2012161827A3 Turbulence inducing device and methods of use |