| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 05/20/1992 | CN1061258A Process for enhanced delayed in situ gelation of chromium polyacrylamide gels |
| 05/19/1992 | US5115084 Method for controlling oil reservoir permeability using biomass oil |
| 05/19/1992 | US5114893 Method of improving water-swellable clay properties by re-drying, compositions and articles |
| 05/19/1992 | US5114599 Injection of a blend of surfactant containing an amine and lignin, driving the surfactant through the formation to produce oil |
| 05/19/1992 | US5114598 Method of making drilling fluid containing asphaltite in a dispersed state |
| 05/19/1992 | US5114597 Method of making a drilling fluid containing carbon black in a dispersed state |
| 05/19/1992 | US5113943 Cement slurry |
| 05/19/1992 | CA1301216C Process and device for compression and transportation of a gas containing a liquid fraction |
| 05/19/1992 | CA1300867C Producing oil-in-water microemulsions from a microemulsion concentrate |
| 05/14/1992 | WO1992008039A1 Fluid additive and method for treatment of subterranean formation |
| 05/14/1992 | WO1992008038A1 Novel gel-based compositions used in reducing water inrush in oil or gas-producing wells |
| 05/14/1992 | WO1992007465A1 Microbiocidal combinations of materials and their use |
| 05/13/1992 | EP0484829A1 Layered mixed metal hydroxides made in non-aqueous media |
| 05/12/1992 | US5112965 Polysaccharide crosslinked in presence of sodium chloride, heat resistance |
| 05/12/1992 | US5112603 Thickening agents for aqueous systems |
| 05/12/1992 | US5112505 Certain dithiocarbamates and method of use for reducing asphaltene precipitation in asphaltenic reservoirs |
| 05/12/1992 | US5112400 Clay thickener for use in water-based systems and joint compounds containing such compositions |
| 05/12/1992 | US5111887 Method for reducing radioactivity of oilfield tubular goods contaminated with radioactive scale |
| 05/12/1992 | US5111886 Fracturing a subterranean formation |
| 05/07/1992 | WO1992007919A1 Additive for a drilling fluid |
| 05/07/1992 | CA2095605A1 Additive for a drilling fluid |
| 05/07/1992 | CA2054937A1 Layered mixed metal hydroxides made in non-aqueous media |
| 05/06/1992 | WO1992008034A1 Process for enhanced delayed in situ gelation of chromium polyacrylamide gels |
| 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 | EP0483638A1 Water soluble copolymers and their use |
| 05/05/1992 | US5110487 Enhanced oil recovery method using surfactant compositions for improved oil mobility |
| 05/05/1992 | US5110486 Breaker chemical encapsulated with a crosslinked elastomer coating |
| 05/05/1992 | US5110485 Fracturing subterranean formations; enhanced oil recovery |
| 05/05/1992 | US5110484 Sulfite stabilizer; inhibition of shale swelling; enhanced oil recovery |
| 05/01/1992 | CA2054518A1 Water-soluble copolymers and their use |
| 04/30/1992 | CA2054301A1 Scleroglucane gel for use in the oid industry |
| 04/29/1992 | CN1060672A In situ reversible crosslinked polymer gel used in hydrocarbon recovery applications |
| 04/28/1992 | US5109042 Well completion |
| 04/22/1992 | CN1060512A Selective placement of permeability-reducing material to inhibit fluid communication between near well bore interval and underlying aquifer |
| 04/22/1992 | CN1016352B Process for preparing mixed metal hydroxides for thickening water or hydrophilic fluids |
| 04/21/1992 | US5106518 Aqueous liquid, borate crosslinked polysaccharide thickener, diethanolamine, oxidizer |
| 04/21/1992 | US5106517 Drilling fluid with browning reaction anionic carbohydrate |
| 04/21/1992 | US5106516 Monocarboxylic acid methylesters in invert drilling muds |
| 04/21/1992 | US5106423 Ultrafine ground slag, water, dispersant, and accelerator |
| 04/21/1992 | US5105887 In situ hydrogenation |
| 04/21/1992 | US5105885 Injecting ethoxylate and sulfonated dispersant blend and alcohol |
| 04/21/1992 | US5105884 Injecting carboxylate containing polymers, crosslinking agents, surfactants, solvents, foaming gas |
| 04/21/1992 | CA1299095C Reversible gel plugging of underground formations |
| 04/21/1992 | CA1299091C Solvent flooding with a horizontal injection well in gas flooded reservoirs |
| 04/17/1992 | WO1992007166A1 In situ reversible crosslinked polymer gel used in hydrocarbon recovery applications |
| 04/17/1992 | CA2086596A1 In situ reversible crosslinked polymer gel used in hydrocarbon recovery applications |
| 04/16/1992 | WO1992006273A1 Control of lost circulation in wells |
| 04/16/1992 | WO1992006044A1 Method for removing scale from a solvent |
| 04/16/1992 | DE4024658A1 Verwendung oberflaechenaktiver alkylglycosidverbindungen in wasser- und oel-basierten bohrspuelungen und anderen bohrlochbehandlungsmitteln Use oberflaechenaktiver alkyl glycoside in water- and oil-based drilling fluids and other downhole treatment products |
| 04/15/1992 | EP0479891A1 Removal of hydrogen sulfide from produced fluids |
| 04/14/1992 | US5104912 Enhanced oil recovery |
| 04/14/1992 | US5104578 Emulsion minimizing corrosion inhibitor for naphtha/water systems |
| 04/14/1992 | US5104557 Mercaptan composition for dissolving sulfur and process for its use |
| 04/14/1992 | US5104556 Dissolving petroleum derived deposits with mixture of aliphatic hydrocarbon (kerosene) and alkyl phenol |
| 04/14/1992 | US5103913 Stability through addition of unhydrated, particulate guar or guar derivatives |
| 04/14/1992 | US5103910 Delayed rigid foam systems and applications in particular for selective plugging treatments in the oil industry |
| 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 | CA1298872C Electric logging method |
| 04/14/1992 | CA1298831C Cationic and anionic lignin, amines |
| 04/14/1992 | CA1298781C Gravity stable surfactant flooding in gas depleted reservoirs |
| 04/14/1992 | CA1298780C Oil recovery process employing cyclic wettability alteration |
| 04/13/1992 | WO1992007168A1 Selective placement of a permeability-reducing material to inhibit fluid communication between a near well bore interval and an underlying aquifer |
| 04/13/1992 | CA2086594A1 Selective placement of a permeability-reducing material to inhibit fluid communication between a near well bore interval and an underlying aquifer |
| 04/08/1992 | EP0479606A1 Crosslinkable cellulose derivatives |
| 04/08/1992 | CN1016162B Fluid loss additives for well cementing compositions |
| 04/07/1992 | US5102866 Grinding peanut hulls; friction resistance |
| 04/07/1992 | US5102561 Processes of thickening and of oil recovery using polysaccharide polymer made by xanthomonas |
| 04/07/1992 | US5102560 Organosilicon polymer having nonrandom crosslinkages useful in enhanced oil recovery using carbon dioxide flooding |
| 04/07/1992 | US5102559 Particulate breaker composition sealed with a water soluble layer and coated with a neutralized sulfonated elastomeric polymer for fracturing subterranean formations |
| 04/07/1992 | US5102558 Neutralized sulfonated elastomers |
| 04/07/1992 | US5101903 Method for modifying the permeability of an underground formation |
| 04/07/1992 | US5101902 Azotobacter produced biopolymer, sulfonated styrene polymer, dispersing agent |
| 04/07/1992 | US5101900 Sand control in wells with gas generator and resin |
| 04/01/1992 | CN1059925A Composite cement filter loss-reducing agent for oil well |
| 04/01/1992 | CN1016082B Oil recovery process employing cycle wettability alteration |
| 04/01/1992 | CN1016068B Sulfur dissolving composition |
| 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 | US5100931 Gelation of acrylamide-containing polymers with hydroxyphenylalkanols |
| 03/31/1992 | US5100660 Thickened acidic aqueous compositions using cross-linked dialkylaminoacrylic microparticles |
| 03/31/1992 | US5100567 Shear-thickening solutions with hydroxypropyl cellulose |
| 03/31/1992 | US5100532 Selected hydroxy-oximes as iron deactivators |
| 03/31/1992 | US5100531 Refinery anti-foulant - asphaltene dispersant |
| 03/31/1992 | US5099930 Lubricants |
| 03/31/1992 | US5099928 Non-polluting dispersing agent for drilling fluids based on freshwater or salt water |
| 03/31/1992 | US5099924 Preflushing using an aqueous acid solution to displace a carbon dioxide conditioning solution followed by a hydrofluoric acid/clay reaction flush and wetting flush |
| 03/31/1992 | US5099923 Clay stabilizing method for oil and gas well treatment |
| 03/31/1992 | US5099922 Control of gas flow through cement column |
| 03/29/1992 | CA2027295A1 Method and composition for preventing the formation of sludge in crude oil |
| 03/25/1992 | EP0476820A2 A method for controlling fines production in unconsolidated formations |
| 03/25/1992 | EP0476263A2 Crosslinking water-soluble polymers with iron to form gels for use in subterranen profile modifications |
| 03/25/1992 | EP0475968A1 Process for preparing tenside mixtures based on ether sulphonates and use of said tenside mixtures |
| 03/24/1992 | USRE33856 Acrylonitrile, dimethylacrylamide and a sodium salt of 2-acrylamido-2-methylpropanesulfonic acid |
| 03/24/1992 | USRE33855 Sodium 2-acrylamido-2-methylpropanesulfonate, acrylonitrile and dimethyl acrylamide, coal and lignin |
| 03/24/1992 | US5098836 Deoxygenation in field preparation of polymers in aqueous solution |
| 03/24/1992 | US5097904 Flow control agents in enhanced oil recovery |
| 03/24/1992 | CA1298030C N-substituted polyamide polymers, process for their preparation and their use as crude petroleum oil additives |