| 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) |
|---|
| 06/02/1992 | US5117911 Shock attenuating apparatus and method |
| 06/02/1992 | US5117909 Prevention gas leakage from oil wells |
| 06/02/1992 | US5117908 Method and equipment for obtaining energy from oil wells |
| 06/02/1992 | US5117907 Enhanced oil recovery |
| 06/02/1992 | CA1302238C Liner setting assembly |
| 06/02/1992 | CA1302233C Gaswell dehydrate valve |
| 05/29/1992 | WO1992008875A2 Well completion system |
| 05/29/1992 | WO1992008874A1 Surface sand monitoring device and method in an oil production stream |
| 05/27/1992 | EP0486976A1 Device for the purification of polluted ground water |
| 05/27/1992 | DE4037059A1 In-situ ground water purifying system - with shaft insert contg. aeration and filtration systems of simple and cheap construction |
| 05/27/1992 | CN2105556U Adjusting and weighing apparatus |
| 05/27/1992 | CN2105555U Full sealed cover for well drilling mud pump |
| 05/27/1992 | CN1061459A Method of steam injection profiling with unstable radioactive isotopes |
| 05/27/1992 | CN1061458A Vacuum method and equipment for extracting water and oil in deep well |
| 05/26/1992 | US5116515 Subterranean |
| 05/26/1992 | US5116163 Arrangement for driving out volatile impurities from ground water |
| 05/26/1992 | US5115869 Apparatus for extinguishing oil well fires and separating oil/gas streams thereof |
| 05/26/1992 | US5115866 Soil vapor well construction |
| 05/26/1992 | US5115865 Method and apparatus for selectively actuating wellbore perforating tools |
| 05/26/1992 | US5115864 Gravel pack screen having retention means and fluid permeable particulate solids |
| 05/26/1992 | US5115860 Gravel pack apparatus run with an electric wireline |
| 05/26/1992 | CA1301639C Water well treating apparatus and method |
| 05/26/1992 | CA1301637C Remote anchoring and tensioning system for an elongated element |
| 05/26/1992 | CA1301636C Gas flooding processing for the recovery of oil from subterranean formations |
| 05/26/1992 | CA1301635C Method of well construction |
| 05/26/1992 | CA1301634C Control line differential firing head |
| 05/26/1992 | CA1301633C Method and apparatus for perforating a well |
| 05/26/1992 | CA1301443C Carbon dioxide systems for hydraulic fracturing of hydrocarbon reservoirs |
| 05/22/1992 | CA2055659A1 Tension-actuated mechanical detonating device useful for detonating downhole explosive |
| 05/22/1992 | CA2055077A1 Time delay perforating apparatus |
| 05/20/1992 | CN2104930U Perforating press slit combined bullet |
| 05/20/1992 | CN2104929U Multi-way lubricating, double positioning gas balancing means |
| 05/20/1992 | CN2104928U Switch having no pressure for oil pumping well |
| 05/19/1992 | US5114497 Heating to vaporize contaminants |
| 05/19/1992 | US5113942 Method of opening cased well perforations |
| 05/19/1992 | US5113941 Surface sand detection monitoring device and method |
| 05/19/1992 | US5113939 Single bore packer with dual flow conversion for gas lift completion |
| 05/19/1992 | US5113937 Device for separating a mixture of free gas and liquid at the intake of a pump at the bottom of a drilled well |
| 05/19/1992 | US5113935 Gravel packing of wells |
| 05/19/1992 | CA1301216C Process and device for compression and transportation of a gas containing a liquid fraction |
| 05/14/1992 | WO1992008037A1 Downhole jet pump system using gas as driving fluid |
| 05/14/1992 | WO1992008035A1 Method for controlling solids accompanying hydrocarbon production |
| 05/13/1992 | EP0281582B1 System for sensing ions in aqueous solution |
| 05/13/1992 | CN2104294U Safety unload device of beam-pumping unit |
| 05/13/1992 | CN2104293U Sprocket group type hydraulic beam-pumping unit |
| 05/13/1992 | CN2104292U Damping mousing unit of sucker rod |
| 05/13/1992 | CN1061069A Oil tool release joint |
| 05/12/1992 | US5112188 Multiple stage drag and dynamic turbine downhole motor |
| 05/12/1992 | US5111887 Method for reducing radioactivity of oilfield tubular goods contaminated with radioactive scale |
| 05/12/1992 | US5111885 Decentralized casing hole puncher |
| 05/12/1992 | US5111884 Method and apparatus for reworking wells |
| 05/12/1992 | US5111883 Vacuum apparatus and process for in-situ removing underground liquids and vapors |
| 05/12/1992 | US5111882 Use of tracers to monitor in situ miscibility of solvent in oil reservoirs during EOR |
| 05/12/1992 | US5111881 Method to control fracture orientation in underground formation |
| 05/12/1992 | US5111547 Method for forming precision liquid/vapor separating bristle assembly |
| 05/12/1992 | CA1300371C Well bore measurement tool |
| 05/12/1992 | CA1300362C Enhanced oil recovery with hydrophobically associating polymers |
| 05/07/1992 | DE4035063A1 Methanisation plant for injecting system into oil deposit - to facilitate pumping and eliminates need for large number of boreholes and prodn. boring |
| 05/06/1992 | EP0484218A1 Work-over device for non eruptive deviated wells |
| 05/06/1992 | EP0484217A1 Scleroglucan gel for the oil industry |
| 05/06/1992 | EP0484208A1 Method and device for consolidation of a formation traversed by a deviated well |
| 05/06/1992 | EP0484207A1 Method to promote the production of a fluid in a production zone |
| 05/06/1992 | CN2103637U Microporous corrosion-proof pipe for separating sand from oil |
| 05/06/1992 | CN2103636U Automatic imitation loader for pumping unit |
| 05/06/1992 | CN1060886A Sintered metal sand screen |
| 05/05/1992 | US5110763 Glass coating |
| 05/05/1992 | US5109928 Method for production of hydrocarbon diluent from heavy crude oil |
| 05/05/1992 | US5109927 Producing hydrocarbons from a subterranean formation |
| 05/05/1992 | US5109922 Ultrasonic energy producing device for an oil well |
| 05/05/1992 | CA1300002C Adjustable and retrievable multiple point steam injection system |
| 05/05/1992 | CA1300001C Method for drawing up special crude oil |
| 05/01/1992 | CA2043284A1 Low thermal stress steam distribution manifold |
| 04/30/1992 | WO1992007189A1 Device for orienting rotor blades in a transverse fluid flow and applications |
| 04/30/1992 | DE3825849A1 Stepwise deep burning by constructing underground vaults - for further coaxial drilling enables increase of max. boring depth for mineral and other exploitation |
| 04/30/1992 | CA2054301A1 Scleroglucane gel for use in the oid industry |
| 04/29/1992 | EP0483110A2 Method and device for making a well |
| 04/29/1992 | EP0482930A2 Mixing apparatus |
| 04/29/1992 | EP0482912A1 Downhole pump for formation testing |
| 04/29/1992 | EP0482911A2 Evaluation of fluid loss for subsurface fracturing |
| 04/29/1992 | EP0295291B1 System for moving a set of instruments and measurements and/or interventions method in a well |
| 04/29/1992 | CN2103002U Waterpower anchor |
| 04/28/1992 | US5108472 Gas-liquid separator |
| 04/28/1992 | US5107943 Method and apparatus for gravel packing of wells |
| 04/28/1992 | US5107929 Drop off method for perforating gun capsule charge carriers |
| 04/28/1992 | US5107927 Orienting tool for slant/horizontal completions |
| 04/25/1992 | CA2053845A1 Mixing apparatus |
| 04/23/1992 | WO1992007167A1 Sintered metal sand screen |
| 04/22/1992 | EP0481571A2 Apparatus for perforating a well |
| 04/22/1992 | CN2102385U Stirring heat thick oil pump |
| 04/22/1992 | CN2102370U Long stroke oil pump |
| 04/22/1992 | CN2102369U Digital controlled thick oil pump |
| 04/22/1992 | CN1060449A Sode ash production |
| 04/21/1992 | US5107441 System for evaluating the flow performance characteristics of a device |
| 04/21/1992 | US5106232 Method of in situ decontamination |
| 04/21/1992 | US5105889 Method of production of formation fluid and device for effecting thereof |
| 04/21/1992 | US5105887 In situ hydrogenation |
| 04/21/1992 | US5105886 Method for the control of solids accompanying hydrocarbon production from subterranean formations |
| 04/21/1992 | US5105884 Injecting carboxylate containing polymers, crosslinking agents, surfactants, solvents, foaming gas |
| 04/21/1992 | US5105880 Formation heating with oscillatory hot water circulation |
| 04/21/1992 | US5105742 Fluid sensitive, polarity sensitive safety detonator |