| 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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| 01/11/2012 | CN202108476U Gravity balance unloading device |
| 01/11/2012 | CN202108472U Separated steam injection well ball-casting air-operated valve device |
| 01/11/2012 | CN202108463U Combined-type long-acting multifunctional adjustable blanking plug |
| 01/11/2012 | CN202108455U Well opening system of abnormally-high-pressure gas well |
| 01/11/2012 | CN202108424U Perforating, fracturing and draining integrated tubular column for oil well |
| 01/11/2012 | CN102317571A Pump |
| 01/11/2012 | CN102317570A Method and apparatus for monitoring of esp |
| 01/11/2012 | CN102317569A Method for disconnecting a device for transferring fluid between the bottom of an expanse of water and the surface and associated transfer device |
| 01/11/2012 | CN102317568A Articulated conduit linkage system |
| 01/11/2012 | CN102317567A Corrugated heating conduit and method of using in thermal expansion and subsidence mitigation |
| 01/11/2012 | CN102312667A Concentric pipe layered steam injection system and method |
| 01/11/2012 | CN102312666A Method for improving oil-water displacement recovery ratio of low-permeable oil reservoir |
| 01/11/2012 | CN102312665A Stratum perforation test device |
| 01/11/2012 | CN102312664A Numerical-control intelligent oil extractor system |
| 01/11/2012 | CN102311728A Chemical pressure-reducing injection-increasing agent for injection well and preparation and use thereof |
| 01/11/2012 | CN102311727A Temperature-resistant phenolic resin sand control agent and preparation method and application thereof |
| 01/11/2012 | CN101644146B Four degree-of-freedom shift operation device for continuous oil pipe injection head |
| 01/11/2012 | CN101592028B Gas-assisted SAGD method for exploiting super heavy oil |
| 01/11/2012 | CN101592027B Combination flooding method according to correction of capillary number curve |
| 01/11/2012 | CN101539004B Epicycloidal beam pumping unit |
| 01/11/2012 | CN101493003B Microbe oil production method after polymer drive |
| 01/11/2012 | CN101392640B True core real time observing oil-driving model |
| 01/11/2012 | CN101300401B Methods and systems for producing fluid from an in situ conversion process |
| 01/11/2012 | CN101238273B Pipe expander |
| 01/10/2012 | US8093304 Demulsification of water-in-oil emulsion |
| 01/10/2012 | US8091643 In situ conversion of heavy hydrocarbons to catalytic gas |
| 01/10/2012 | US8091641 Method and apparatus to cement a perforated casing |
| 01/10/2012 | US8091639 Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature |
| 01/10/2012 | US8091638 Methods useful for controlling fluid loss in subterranean formations |
| 01/10/2012 | US8091637 Proppant for use in a subterranean formation |
| 01/10/2012 | US8091636 Method for increasing the recovery of hydrocarbons |
| 01/10/2012 | US8091632 Method and device for the in-situ extraction of a hydrocarbon-containing substance from an underground deposit |
| 01/10/2012 | US8091631 Intelligent well system and method |
| 01/10/2012 | US8091630 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 01/10/2012 | US8091625 Method for producing viscous hydrocarbon using steam and carbon dioxide |
| 01/10/2012 | CA2679495C Improved system and method for stimulating multiple production zones in a wellbore |
| 01/10/2012 | CA2671096C System and method for longitudinal and lateral jetting in a wellbore |
| 01/10/2012 | CA2491903C System and method for automating or metering fluid recovered at a well |
| 01/10/2012 | CA2455742C Rotary drivehead for downhole apparatus |
| 01/09/2012 | CA2744620A1 Well servicing fluid |
| 01/08/2012 | CA2745640A1 Use of zeta potential modifiers to decrease the residual oil saturation |
| 01/07/2012 | CA2744738A1 Control of scale formation in produced water evaporators |
| 01/05/2012 | WO2012003419A2 Multiple ball-ball seat for hydraulic fracturing with reduced pumping pressure |
| 01/05/2012 | WO2012003101A2 System and method for controlling wellbore pressure |
| 01/05/2012 | WO2012002818A1 Device and method for connecting a collection system to a subsea petroleum well and use of a suction substructure |
| 01/05/2012 | WO2012001671A2 Flow control valve for polymer solutions |
| 01/05/2012 | WO2012001574A2 High solids content methods and slurries |
| 01/05/2012 | WO2012001558A2 High solids content slurries and methods |
| 01/05/2012 | WO2012001118A1 Fracturing system |
| 01/05/2012 | WO2012001116A1 Safety device |
| 01/05/2012 | WO2012001008A1 In situ combustion process with reduced c02 emissions |
| 01/05/2012 | WO2012000580A2 Closing and sealing a bore hole or pipe |
| 01/05/2012 | WO2012000492A2 Device for preventing the passage of a liquid, use of said device, blowout auxiliary device, and method for use |
| 01/05/2012 | WO2011127433A3 System and method for subsea production system control |
| 01/05/2012 | WO2011123249A3 Method of subterranean formation treatment |
| 01/05/2012 | US20120003722 Carbon dioxide removal systems |
| 01/05/2012 | US20120003105 Dry vacuum pump |
| 01/05/2012 | US20120003044 Underwater oil and gas leak containment systems and methods |
| 01/05/2012 | US20120000674 Subterranean Jetting Tool |
| 01/05/2012 | US20120000670 Device and method for improving liquid removal from gas, condensate & oil wells when using a multi-channel system |
| 01/05/2012 | US20120000669 Upscaling of Reservoir Models By Reusing Flow Solutions From Geologic Models |
| 01/05/2012 | US20120000668 System and method for producing hydrocarbons from a well |
| 01/05/2012 | US20120000662 Viscosity differential fracturing for enhanced application of amendments to ground and groundwater |
| 01/05/2012 | US20120000661 Low temperature hydrocarbon gel II |
| 01/05/2012 | US20120000660 Low temperature hydrocarbon gel |
| 01/05/2012 | US20120000659 Multifunctional Boronic Crosslinkers and Associated Methods |
| 01/05/2012 | US20120000658 Method for in situ fluid assessment and optimization during wellbore displacement operations |
| 01/05/2012 | US20120000656 Apparatus And Methods For Producing Oil and Plugging Blowouts |
| 01/05/2012 | US20120000653 High solids content slurry methods and systems |
| 01/05/2012 | US20120000652 Well treatment fluid |
| 01/05/2012 | US20120000651 High solids content slurry systems and methods |
| 01/05/2012 | US20120000650 Methods and apparatus for improved cement plug placement |
| 01/05/2012 | US20120000643 Gas-liquid separator |
| 01/05/2012 | US20120000642 Steam driven direct contact steam generation |
| 01/05/2012 | US20120000641 High solids content slurries, systems and methods |
| 01/05/2012 | DE102010025700A1 Vorrichtung zum Verhindern eines Durchtritts einer Flüssigkeit A device for preventing passage of a fluid |
| 01/05/2012 | CA2804151A1 Multiple ball-ball seat for hydraulic fracturing with reduced pumping pressure |
| 01/05/2012 | CA2804042A1 Flow control valve for polymer solutions |
| 01/05/2012 | CA2803985A1 In situ combustion process with reduced c02 emissions |
| 01/05/2012 | CA2803714A1 Fracturing system |
| 01/05/2012 | CA2803712A1 Safety device |
| 01/05/2012 | CA2803482A1 Valve assembly |
| 01/05/2012 | CA2803232A1 High solids content slurries and methods |
| 01/05/2012 | CA2803080A1 High solids content methods and slurries |
| 01/04/2012 | EP2403068A1 Safety device |
| 01/04/2012 | EP2402556A1 Explosive initiator |
| 01/04/2012 | EP2402555A1 Tractor communication/control and select fire perforating switch |
| 01/04/2012 | EP2402554A1 Fracturing system |
| 01/04/2012 | EP2402514A2 System for storing and purifying water |
| 01/04/2012 | EP2401474A1 Novel device and methods for firing perforating guns |
| 01/04/2012 | EP2201212B1 Apparatus and method for ratcheting stimulation tool |
| 01/04/2012 | CN202100815U Long-range control device for valve |
| 01/04/2012 | CN202100255U Multistage cylinder barrel cutting and simulating device with sand prevention compaction sand body in near well bore area |
| 01/04/2012 | CN202100249U Underground monitoring device of intelligent well |
| 01/04/2012 | CN202100247U Casing pressure balanced well mouth closed quantitative continuous dosing device |
| 01/04/2012 | CN202100246U Safety redundant ignition device |
| 01/04/2012 | CN202100245U Self-propelled no-well-killing screen pipe descending device |
| 01/04/2012 | CN202100244U Double-channel sand setting tail pipe column of sand production well |
| 01/04/2012 | CN202100243U Underwater manifold production pipeline |
| 01/04/2012 | CN202100242U Improved rolling screw driving straight line oil pumping machine |