| 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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| 04/21/1992 | US5105659 Detection of fracturing events using derivatives of fracturing pressures |
| 04/21/1992 | CA1299093C Recovering hydrocarbons with a triangular horizontal well pattern |
| 04/21/1992 | CA1299092C Modified push/pull flood process for hydrocarbon recovery |
| 04/21/1992 | CA1299091C Solvent flooding with a horizontal injection well in gas flooded reservoirs |
| 04/19/1992 | CA2053606A1 System for pumping fluids from horizontal wells |
| 04/16/1992 | WO1992006275A1 Flexible gravel prepack production system for wells having high dog-leg severity |
| 04/16/1992 | WO1992006274A1 Method and apparatus for oil well stimulation |
| 04/16/1992 | WO1992006269A1 Release joint |
| 04/15/1992 | EP0480773A1 Subsea production system and method for line connection between a manifold and adjacent satellite wells |
| 04/15/1992 | EP0480772A1 Subsea production system |
| 04/15/1992 | EP0480766A1 Subsea connection system and a mobile connector utilized in said system |
| 04/15/1992 | EP0480765A1 Tool for simultaneous vertical connections |
| 04/15/1992 | EP0480501A1 Down hole pump with compressor |
| 04/15/1992 | CN2101752U Hydraulic oil filling device for draw oil pump |
| 04/15/1992 | CN2101751U Hydraulic driving oil sucking machine with beam |
| 04/15/1992 | CN2101750U Digital controlled operating energy saving oil sucking machine |
| 04/15/1992 | CN2101749U Long stroke oil sucking machine with return potential energy recovery |
| 04/14/1992 | US5104557 Mercaptan composition for dissolving sulfur and process for its use |
| 04/14/1992 | US5104545 Process for removing water soluble organic compounds from produced water |
| 04/14/1992 | US5104296 Engine end for a downhole hydraulically actuated pump assembly |
| 04/14/1992 | US5103914 Well treatment system |
| 04/14/1992 | US5103913 Stability through addition of unhydrated, particulate guar or guar derivatives |
| 04/14/1992 | US5103912 Method and apparatus for completing deviated and horizontal wellbores |
| 04/14/1992 | US5103911 Method and apparatus for perforating a well liner and for fracturing a surrounding formation |
| 04/14/1992 | US5103909 Profile control in enhanced oil recovery |
| 04/14/1992 | US5103907 Steam injection profile control agent and process |
| 04/14/1992 | US5103905 Method of optimizing the conductivity of a propped fractured formation |
| 04/14/1992 | US5103902 Non-rotational versa-trieve packer |
| 04/14/1992 | CA1298872C Electric logging method |
| 04/14/1992 | CA1298781C Gravity stable surfactant flooding in gas depleted reservoirs |
| 04/14/1992 | CA1298780C Oil recovery process employing cyclic wettability alteration |
| 04/14/1992 | CA1298697C Viscoelastic surfactant gravel carrier fluids |
| 04/12/1992 | CA2052651A1 Auto pressure filter apparatus |
| 04/11/1992 | CA2053021A1 Apparatus for compressing a fluid |
| 04/08/1992 | CN2101105U Numerical controlled operation long stroke oil pumping unit |
| 04/08/1992 | CN1060136A Cutting seam sieve tube and its making method |
| 04/07/1992 | US5102560 Organosilicon polymer having nonrandom crosslinkages useful in enhanced oil recovery using carbon dioxide flooding |
| 04/07/1992 | US5101901 Injecting sand, potassium silicate, and calcium compound to form calcium silicate cement |
| 04/07/1992 | US5101900 Sand control in wells with gas generator and resin |
| 04/07/1992 | US5101899 Recovery of petroleum by electro-mechanical vibration |
| 04/07/1992 | US5101898 Well placement for steamflooding steeply dipping reservoirs |
| 04/07/1992 | CA1298545C Packer for oil or gas well with lateral passage therethrough and method of fracturing well |
| 04/07/1992 | CA1298543C Thermal drainage process for recovering hot water-swollen oil from a thick tar sand |
| 04/02/1992 | WO1991017970A3 Low level blasting composition and method of blasting same |
| 04/01/1992 | EP0296207B1 Method and device for taking measurements and/or carrying out interventions in a well subjected to a hydraulic compression |
| 04/01/1992 | CN2100482U Well-pump integrated connecting device |
| 04/01/1992 | CN1016082B Oil recovery process employing cycle wettability alteration |
| 03/31/1992 | US5100952 Organically crosslinked polyvinyl alcohol copolymeric gels for use under harsh reservoir conditions |
| 03/31/1992 | US5100932 Organic polymer crosslinkable by chromium(III) |
| 03/31/1992 | US5100259 Cold cap subsidence for in situ vitrification and electrodes therefor |
| 03/31/1992 | US5099921 Injecting helium then hydrogen to desorb the methane, coal formations |
| 03/31/1992 | US5099920 Small diameter dual pump pollutant recovery system |
| 03/31/1992 | US5099918 Power sources for downhole electrical heating |
| 03/31/1992 | US5099917 Water well construction |
| 03/31/1992 | US5099763 Method of blasting |
| 03/31/1992 | CA1298286C Dry sand foam generator |
| 03/25/1992 | EP0476820A2 A method for controlling fines production in unconsolidated formations |
| 03/25/1992 | EP0476814A1 Method of protecting casing during high pressure well stimulation |
| 03/25/1992 | EP0476758A2 Detection of fracturing events using derivatives of fracturing pressures |
| 03/25/1992 | CN1059779A Method of improving permeability of fines-containing hydrocarbon formations by steam injection |
| 03/25/1992 | CN1016001B Conductively heating subterranean oil shale to create permeability and subsequently produce oil |
| 03/24/1992 | US5098538 Electroacoustic soil decontamination |
| 03/24/1992 | US5098219 Mobile submersible caisson for underwater oil-well drilling and production |
| 03/24/1992 | US5098164 Abrasive jet manifold for a borehole miner |
| 03/24/1992 | US5097914 Method and device for producing unadulterated water samples in drilling a well |
| 03/24/1992 | US5097903 Method for recovering intractable petroleum from subterranean formations |
| 03/24/1992 | CA1298030C N-substituted polyamide polymers, process for their preparation and their use as crude petroleum oil additives |
| 03/24/1992 | CA1297785C Method to form a fluid barrier with sloped drains, notably for use near oil wells |
| 03/24/1992 | CA1297783C Well treating method and system for stimulating recovery of fluids |
| 03/24/1992 | CA1297782C Gravel packing system for a production radial tube |
| 03/21/1992 | CA2049193A1 Method for controlling fines production in unconsolidated and loosely consolidated formations |
| 03/21/1992 | CA2049183A1 Method of protecting casing during high pressure well stimulation |
| 03/18/1992 | EP0475503A1 Product and process for acid diversion in the treatment of subterranean formations |
| 03/17/1992 | US5095999 Through tubing perforating gun including a plurality of phased capsule charges mounted on a retrievable base strip via a plurality of shatterable support rings |
| 03/17/1992 | US5095993 Anchor apparatus for a tubing and wireline conveyed method and apparatus |
| 03/17/1992 | US5095992 Process for installing casing in a borehole |
| 03/17/1992 | US5095990 Use in a well |
| 03/17/1992 | US5095987 Method of forming and using high density particulate slurries for well completion |
| 03/17/1992 | US5095984 Transporting mobility control agents to high permeability zones |
| 03/17/1992 | US5095983 Multiphase production evaluation method using thru-tubing, wireline packoff devices |
| 03/17/1992 | US5095975 Arrangement for driving volatile impurities from ground water |
| 03/17/1992 | US5095974 Assembly for introducing steam into an oil-bearing stratum |
| 03/17/1992 | US5095801 Pivot gun having charges which slidingly engage a stationary detonating cord and apparatus for deploying the charges |
| 03/14/1992 | CA2048969A1 Method of improving permeability of fines-containing hydrocarbon formations by steam injection |
| 03/11/1992 | EP0474350A1 Control of subterranean fracture orientation |
| 03/11/1992 | CN2098552U Controller to prevent electric apparatus of screw arbor oil well pump from turning reversely |
| 03/11/1992 | CN2098551U Hydraulic oil extraction equipment of logical integration type |
| 03/11/1992 | CN1015812B Dual-belt dual-cylinder and long-stroke oil-pumping machine |
| 03/11/1992 | CN1015808B Method for well drilling |
| 03/11/1992 | CN1015802B Internally installed fluid magnetic core |
| 03/10/1992 | US5094567 Flexible column from composite material |
| 03/10/1992 | US5094294 Well pump assembly and packer |
| 03/10/1992 | US5094167 Shape charge for a perforating gun including an integrated circuit detonator and wire contactor responsive to ordinary current for detonation |
| 03/10/1992 | US5094166 Shape charge for a perforating gun including integrated circuit detonator and wire contactor responsive to ordinary current for detonation |
| 03/10/1992 | US5094103 Steam quality and flow rate measurement |
| 03/10/1992 | CA2050793A1 Detection of fracturing events using derivatives of fracturing pressures |
| 03/08/1992 | CA2050627A1 Viscosity and phase separation control additives for foaming alkyl aromatic sulfonates |
| 03/04/1992 | EP0472967A1 Device for removing volatile contaminants from groundwater |
| 03/04/1992 | CN2097901U Chain beam-pumping unit |
| 03/04/1992 | CN1059180A Solidification control system for well drilling liquid |