| 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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| 02/07/2007 | CN1910339A Multi-purpose well bores and method for accessing a subterranean zone from the surface |
| 02/07/2007 | CN1910338A Annulus plugging detection using a pressure transmitter in gas-lift oil production |
| 02/07/2007 | CN1908434A Direct ground driving gear of screw pump |
| 02/07/2007 | CN1908367A Well casing protecting equipment for deep coal underground gasification production well |
| 02/07/2007 | CN1908366A Underground three layer diverter |
| 02/07/2007 | CN1298963C System and method for lining a section of a wellbore |
| 02/07/2007 | CN1298962C Method and well tool for gravel packing well using low viscosity fluids |
| 02/07/2007 | CN1298961C Method for treating multiple wellbore intervals |
| 02/06/2007 | US7172703 Mixing the brine containing metal impurities with an organic chelant for a time sufficient for the chelant to complex a metal and form a complexed metal precipitate; removing complexed metal precipitate from brine wherein the metal impurities contain iron |
| 02/06/2007 | US7172030 Providing injection well and production well, each completed in the reservoir;injecting waste gas through injection well;separating carbon dioxide constituent out of the waste gas by the water presence, producing gas from production well, produced gas being free of separated carbon dioxide |
| 02/06/2007 | US7172027 Expanding tubing |
| 02/06/2007 | US7172026 Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore |
| 02/06/2007 | US7172025 System for lining a section of a wellbore |
| 02/06/2007 | US7172024 Mono-diameter wellbore casing |
| 02/06/2007 | US7172023 Perforating gun assembly and method for enhancing perforation depth |
| 02/06/2007 | US7172022 Cement compositions containing degradable materials and methods of cementing in subterranean formations |
| 02/06/2007 | US7172021 Liner hanger with sliding sleeve valve |
| 02/06/2007 | US7172019 Method and apparatus for forming a mono-diameter wellbore casing |
| 02/06/2007 | CA2491529C Compositions and methods for treating a subterranean formation |
| 02/06/2007 | CA2375045C Tubing conveyed fracturing tool and method |
| 02/06/2007 | CA2309489C Downhole screen and method of manufacture |
| 02/06/2007 | CA2282872C Piping method for hydrocarbon product device between production means and treatment facilities |
| 02/06/2007 | CA2281276C A thermal solvent process for the recovery of heavy oil and bitumen and in situ solvent recycle |
| 02/01/2007 | WO2007014339A2 Method and apparatus for coupling expandable tubular members |
| 02/01/2007 | WO2007014010A1 Apparatus and methods for creation of down hole annular barrier |
| 02/01/2007 | WO2007014009A1 Downhole non-return valve and method |
| 02/01/2007 | WO2007013883A2 Method of estimating fracture geometry, compositions and articles used for the same |
| 02/01/2007 | WO2007012842A1 A shoe for wellbore lining tubin |
| 02/01/2007 | US20070023361 Microporous diffusion apparatus |
| 02/01/2007 | US20070023190 Stab Guide |
| 02/01/2007 | US20070023188 Mill and pump-off sub |
| 02/01/2007 | US20070023187 Sintered spherical pellets useful for gas and oil well proppants |
| 02/01/2007 | US20070023186 Hydrocarbon recovery from impermeable oil shales |
| 02/01/2007 | US20070023184 Well product recovery process |
| 02/01/2007 | US20070023182 Oil well pump apparatus |
| 02/01/2007 | DE102006031552A1 Bohrloch-Gasverdichter Downhole gas compressor |
| 02/01/2007 | DE10159311B4 In-situ Verdampfung In-situ evaporation |
| 02/01/2007 | CA2617498A1 Apparatus and methods for creation of down hole annular barrier |
| 02/01/2007 | CA2616438A1 Method and apparatus for coupling expandable tubular members |
| 01/31/2007 | EP1748150A2 Method of creating a borehole in an earth formation |
| 01/31/2007 | EP1747346A2 Uncollapsed expandable wellbore junction |
| 01/31/2007 | EP1747323A1 Top tensioned riser |
| 01/31/2007 | CN2864088Y Heat-proof down-well compensator for steam injection |
| 01/31/2007 | CN2864075Y Suspension arrangement of pumping unit |
| 01/31/2007 | CN1906377A Expander system for incremental expansion of a tubular element |
| 01/31/2007 | CN1906376A Method of creating a zonal isolation in an underground wellbore |
| 01/31/2007 | CN1904363A Method and device of improving effect of rod oil pump and realizing energy saving of rod oil pump |
| 01/31/2007 | CN1904308A Blasting type cave well completion technological method of coal layer gas well |
| 01/31/2007 | CN1903444A Multiple air-intaking channel and supersonic speed whirl-flow separator and its back pressure device |
| 01/31/2007 | CN1297778C Separator and phase-split conveying method for eliminating plug flow on serious segments by utilizing same |
| 01/31/2007 | CN1297727C Oil-gas well perforator interlayer gun |
| 01/31/2007 | CN1297726C Adjustable oil extracting arm of vertical oil sucket |
| 01/30/2007 | US7169239 Solid expandable tubular members formed from very low carbon steel and method |
| 01/30/2007 | US7168499 Radial expansion of tubular members |
| 01/30/2007 | US7168497 Downhole sealing |
| 01/30/2007 | US7168496 Liner hanger |
| 01/30/2007 | US7168491 Perforation alignment tool for jet drilling, perforating and cleaning |
| 01/30/2007 | US7168490 Optimized hydrocarbon blends and methods of using optimized hydrocarbon blends |
| 01/30/2007 | US7168489 Orthoester compositions and methods for reducing the viscosified treatment fluids |
| 01/30/2007 | US7168488 Method and plant or increasing oil recovery by gas injection |
| 01/30/2007 | US7168486 Apparatus comprising expandable bistable tubulars and methods for their use in wellbores |
| 01/30/2007 | US7168485 Expandable systems that facilitate desired fluid flow |
| 01/30/2007 | CA2540429C Proppants and their manufacture |
| 01/30/2007 | CA2455732C Method for biosolid disposal and methane generation |
| 01/30/2007 | CA2414432C Technique for expanding tubular structures |
| 01/29/2007 | CA2516341A1 An agitating apparatus and method for enhancing production in progressive cavity pumps |
| 01/25/2007 | WO2007011986A2 Method of increasing reservoir permeability |
| 01/25/2007 | WO2007011812A1 Combined nitrogen generation system and well servicing fluid system in one power unit apparatus |
| 01/25/2007 | WO2007011320A1 Device for reducing the water flooding of the oil-and-gas well product |
| 01/25/2007 | WO2007010402A1 Methods and apparatus for completing a well |
| 01/25/2007 | WO2007010190A1 Methods for controlling water and sand production in subterranean wells |
| 01/25/2007 | WO2006122359A3 Hydraulic pump assembly |
| 01/25/2007 | WO2006088826A3 Conserving components of fluids |
| 01/25/2007 | WO2004079157A8 Compliant swage |
| 01/25/2007 | US20070021309 Thermoset particles with enhanced crosslinking, processing for their production, and their use in oil and natural gas driliing applications |
| 01/25/2007 | US20070021308 Composition and method for fracturing subterranean reservoirs |
| 01/25/2007 | US20070017875 Method and device for separation of a fluid, in particular oil, gas and water |
| 01/25/2007 | US20070017706 Methods of drilling and consolidating subterranean formation particulates |
| 01/25/2007 | US20070017678 High energy gas fracturing charge device and method of use |
| 01/25/2007 | US20070017677 Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore |
| 01/25/2007 | US20070017675 Methods and Apparatus for Completing a Well |
| 01/25/2007 | US20070017673 Determining and Tracking Downhole Particulate Deposition |
| 01/25/2007 | US20070017672 Automatic Detection of Resonance Frequency of a Downhole System |
| 01/25/2007 | US20070017671 Wellbore telemetry system and method |
| 01/25/2007 | US20070017669 Device and method of lining a wellbore |
| 01/25/2007 | US20070017572 Pipeline |
| 01/25/2007 | DE19882406B4 Feststoff-stabilisierte Emulsion, ihre Verwendung zur Ölgewinnung und Verfahren zu ihrer Herstellung Solids-stabilized emulsion, their use for oil extraction and process for their preparation |
| 01/25/2007 | CA2615633A1 Combined nitrogen generation system and well servicing fluid system in one power unit apparatus |
| 01/24/2007 | EP1745233A1 Metal sleeve seal for threaded connections |
| 01/24/2007 | EP1744841A1 Gas well and method for retrofitting gas wells located in landfills |
| 01/24/2007 | EP1556581B1 Methods of completing wells in unconsolidated formations |
| 01/24/2007 | EP1358394B1 Optimization of reservoir, well and surface network systems |
| 01/24/2007 | CN2861555Y Ground driving double-screw pump oil production device |
| 01/24/2007 | CN2861551Y Integral-tube type oil-well pump |
| 01/24/2007 | CN2861549Y Driving medium of single crank double-stroke flexible pumping unit |
| 01/24/2007 | CN2861548Y Driving medium of single crank double-stroke flexible pumping unit |
| 01/24/2007 | CN2861547Y Power gearbox of single crank double-stroke flexible pumping unit |
| 01/24/2007 | CN2861482Y Movable oil-containing sand preparation plant |
| 01/24/2007 | CN2861481Y Dual sliding sleeve sandblast |
| 01/24/2007 | CN2861480Y Small diameter sectionalized acidizing tool string for vertical well |