| 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) |
|---|
| 06/12/2013 | CN202983291U Gas and coal water separating device |
| 06/12/2013 | CN103154432A Wellbore tubular cutter |
| 06/12/2013 | CN103154431A Methods and systems for enhanced delivery of thermal energy for horizontal wellbores |
| 06/12/2013 | CN103154430A Control of fluid flow during treatment of subterranean sites using well fluid injection |
| 06/12/2013 | CN103154429A Compact cable suspended pumping system for dewatering gas wells |
| 06/12/2013 | CN103154428A Selective control of flow through a well screen |
| 06/12/2013 | CN103154426A Methods for completing multi-zone production wells using sliding sleeve valve assembly |
| 06/12/2013 | CN103154424A Marine subsea free-standing riser systems and methods |
| 06/12/2013 | CN103148186A Non-constant-speed and non-symmetrical-crank-counterweight efficient and energy-saving oil pumping machine |
| 06/12/2013 | CN103147788A Positive pressure and negative pressure combined gas drainage process by pressurizing coal body of thick coal seam |
| 06/12/2013 | CN103147738A Multifunctional separating and metering tank |
| 06/12/2013 | CN103147734A Method for multi-section hydraulic fracture along coal layer of underground coal mine |
| 06/12/2013 | CN103147733A Windable electric ignition and monitoring system for in-situ combustion |
| 06/12/2013 | CN103147732A Method for medium and low temperature controllable self heat generation under thick oil and ultra-thick oil deposit condition |
| 06/12/2013 | CN103147731A Method for enhancing crude oil recovery ratio |
| 06/12/2013 | CN103147730A Method for improving crude oil recovery ratio by using organic solid waste |
| 06/12/2013 | CN103147729A Under pump mechanical mixing medicine doping pipe column of oil well pump |
| 06/12/2013 | CN103147728A Vortex mixer for viscosity reducer |
| 06/12/2013 | CN103147727A Underground medium and low temperature controllable catalytic oxidation modification petroleum mining method |
| 06/12/2013 | CN103147726A Method and device for doubly adjusting supporting arm and water nozzle by input shaft |
| 06/12/2013 | CN103147725A Pressure differential priming device used for oil and gas well perforating operation |
| 06/12/2013 | CN103147724A Dual-purpose detonating device for detonating perforating gun |
| 06/12/2013 | CN103147723A Impact unlocking safe initiation device for initiation perforating gun in well completion operation of oil and gas well |
| 06/12/2013 | CN103143277A Dual-stage polymer swelling particle dissolving accelerating device with instant structure ring |
| 06/12/2013 | CN102155199B Petroleum underground laser perforation well completion device |
| 06/12/2013 | CN102155198B Gas scavenging device for petroleum underground laser perforator |
| 06/12/2013 | CN102155197B Multi-beam laser perforating device under petroleum well |
| 06/12/2013 | CN102155195B Multi-control-unit multi-beam laser perforation device in oil well |
| 06/12/2013 | CN102093868B Microbial wax removal and control system and application thereof |
| 06/12/2013 | CN102031954B Coal and rock bore hydraulic fracture experimental apparatus |
| 06/12/2013 | CN101883909B Method of radially expanding a tubular element |
| 06/12/2013 | CN101835871B Installation for enhanced oil recovery using water-soluble polymers, method implementing same |
| 06/12/2013 | CN101660402B Extraction method of valve opening and closing points of indicator diagram of pumping well based on physical significance |
| 06/12/2013 | CN101429860B Desalination little-reagent ground-dipping uranium extraction method |
| 06/11/2013 | US8460444 Equipment for pressurized adsorption of gaseous carbon dioxide from boiler flue gas for oil recovery by well injection |
| 06/11/2013 | US8459368 Systems and methods for producing oil and/or gas |
| 06/11/2013 | US8459362 System, device, and method of installation of a pump below a formation isolation valve |
| 06/11/2013 | US8459360 Di-functional surfactants for enhanced oil recovery |
| 06/11/2013 | US8459359 Treating nahcolite containing formations and saline zones |
| 06/11/2013 | US8459358 Cutting dart and method of using the cutting dart |
| 06/11/2013 | US8459353 Delivery of particulate material below ground |
| 06/11/2013 | US8459352 Selective placement of conformance treatments in multi-zone well completions |
| 06/11/2013 | US8459351 Method and apparatus for producing shock waves in the borehole of wells filled by liquid |
| 06/11/2013 | US8459350 Method for optimizing in-situ bioconversion of carbon-bearing formations |
| 06/11/2013 | US8459349 Treating coal with an oxoacid ester of phosphorus or a thioacid ester of phosphorus and other chemicals for methanogenic microorganism to convert to methane |
| 06/11/2013 | CA2735428C Hydrocarbon-based fluid compositions and methods of using same |
| 06/11/2013 | CA2729802C Method for optimizing in-situ bioconversion of carbon-bearing formations |
| 06/11/2013 | CA2663866C Well screen assembly |
| 06/11/2013 | CA2503917C Apparatus and method for reducing gas lock in downhole pumps |
| 06/08/2013 | CA2798233A1 Process and well arrangement for hydrocarbon recovery from bypassed pay or a region near reservoir base |
| 06/06/2013 | WO2013082636A1 Exploitation of carbonaceous deposits |
| 06/06/2013 | WO2013082582A2 Apparatus and method for dispensing chemicals into a well |
| 06/06/2013 | WO2013082386A1 Pump actuated valve |
| 06/06/2013 | WO2013081986A1 Modular pumpouts and flowline architecture |
| 06/06/2013 | WO2013081609A1 Compositions and methods for enhanced hydrocarbon recovery |
| 06/06/2013 | WO2013079201A1 Method for producing a cable core having a conductor surrounded by an insulation for a cable, in particular for an induction cable, and cable core and cable |
| 06/06/2013 | WO2013078980A1 Underground coal gasification and linkage method |
| 06/06/2013 | WO2013032930A3 Diverter spool and methods of using the same |
| 06/06/2013 | US20130140039 Source spectrum control of nonlinearities in optical waveguides |
| 06/06/2013 | US20130140037 System and method for planning a well path |
| 06/06/2013 | US20130140036 Leakage containment system for run-away subsea wells |
| 06/06/2013 | US20130140035 Systems And Methods For Collecting Hydrocarbons Vented From A Subsea Discharge Site |
| 06/06/2013 | US20130140031 System and method for performing optimized downhole stimulation operations |
| 06/06/2013 | US20130140030 Apparatus and method for dispensing chemicals into a well |
| 06/06/2013 | US20130140027 Method and apparatus for a downhole gas generator |
| 06/06/2013 | US20130140023 Assemblies and methods for minimizing pressure-wave damage |
| 06/06/2013 | US20130140022 Method For Repairing A Liner Hanger, Device And Blank For Implementation Thereof |
| 06/06/2013 | US20130140021 In-situ upgrading of bitumen or heavy oil |
| 06/06/2013 | US20130140020 Method for increasing fracture area |
| 06/06/2013 | CA2857698A1 Method for producing a cable core, having a conductor surrounded by an insulation, for a cable, in particular for an induction cable, and cable core and cable |
| 06/06/2013 | CA2856525A1 Modular pumpouts and flowline architecture |
| 06/05/2013 | EP2598714A1 Wellbore lateral liner placement system |
| 06/05/2013 | EP2598713A1 Sand control well completion method and apparutus |
| 06/05/2013 | EP2598712A2 A system and method for conformance control in a subterranean reservoir |
| 06/05/2013 | EP2598558A2 Crosslinked epoxy vinyl ester particles and methods for making and using the same |
| 06/05/2013 | CN202971692U Safe lock of pumping unit brake hoop |
| 06/05/2013 | CN202971682U Locking device of pumping unit brake |
| 06/05/2013 | CN202970693U Flow automatic measuring and adjusting system |
| 06/05/2013 | CN202970674U Degassing, silt removing and liquid separating device at wellhead |
| 06/05/2013 | CN202970673U Physical excitation and three-phase separation pre-separating current-stabilizing water distributor for water injected into well |
| 06/05/2013 | CN202970672U Multi-section fracture casing pipe sliding sleeve |
| 06/05/2013 | CN202970671U Selective staged fracturing tool of switch sliding sleeve |
| 06/05/2013 | CN202970670U Open hole packer ball-throwing sliding sleeve staged fracturing tool |
| 06/05/2013 | CN202970669U Sand-blocking-proof hierarchical fracturing tubular column |
| 06/05/2013 | CN202970668U Casing pressure balance slide sleeve staged fracturing tool |
| 06/05/2013 | CN202970667U Coiled oil tube dragging hydraulic jet tool |
| 06/05/2013 | CN202970666U Horizontal well hydraulic jet fracturing tubular pipe |
| 06/05/2013 | CN202970665U Multi-branch fracturing fluid supplying and transporting device |
| 06/05/2013 | CN202970664U Thermal-expansion wellhead compensator of movable elbow |
| 06/05/2013 | CN202970663U Novel pressure-reducing device |
| 06/05/2013 | CN202970662U Skid mounted oil well medicine adding device |
| 06/05/2013 | CN202970661U Annular multi-layer oil detection device used in oil-gas field development |
| 06/05/2013 | CN202970660U Selective opening and closing mechanism for sliding bush |
| 06/05/2013 | CN202970659U Throttling pressure difference sliding bush mechanism |
| 06/05/2013 | CN202970658U Cable composite bridge plug selecting transmitting aperture tool |
| 06/05/2013 | CN202970657U Split type opening bullet |
| 06/05/2013 | CN202970656U Dynamic negative pressure perforating device |
| 06/05/2013 | CN202970655U Device for automatically punching by throwing stick |
| 06/05/2013 | CN202970654U Multi-hole medium screen pipe with cavities |
| 06/05/2013 | CN202970653U Punching type firing strainer screening tube |