| 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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| 12/28/1982 | US4366070 Viscosifier & fluid loss control system |
| 12/28/1982 | US4365670 Tributyl titanate as polymerization catalysts |
| 12/28/1982 | CA1138329A1 Process for consolidating and sealing off geological and artificially deposited rock and earth formations |
| 12/22/1982 | EP0067578A2 Method for reducing formation permeability and compositions for use in the method |
| 12/21/1982 | US4364431 Method for recovering oil from an underground formation |
| 12/21/1982 | CA1137739A1 Thickener composite from a water swellable material, oil-surfactant phase and a polymer |
| 12/15/1982 | EP0066961A1 Production of xanthan having a low pyruvate content |
| 12/14/1982 | US4363886 Preparation of amphoteric water-in-oil self-inverting polymer emulsion |
| 12/14/1982 | US4363736 Fluid loss control system |
| 12/14/1982 | CA1137503A1 Aqueous based slurry and method of forming a consolidated gravel pack |
| 12/14/1982 | CA1137435A1 Sulphur extraction |
| 12/14/1982 | CA1137290A1 Ascorbic acid or erythorbic acid for prevention of formation of ferric compound |
| 12/14/1982 | CA1137289A1 Polyepoxide for petroleum recovery |
| 12/08/1982 | EP0066377A1 Process for xanthan gum production |
| 12/07/1982 | CA1136985A1 Unique salinity for oil recovery surfactant system |
| 12/07/1982 | CA1136984A1 Chemical process for backsurging fluid through well casing perforations |
| 12/07/1982 | CA1136840A1 Microemulsions which compatibly incorporate viscosifiers and their use in enhanced oil recovery |
| 12/07/1982 | CA1136839A1 Oil displacement enhanced by lyothropic liquid crystals in highly saline media |
| 11/30/1982 | US4361186 Formation flow channel blocking |
| 11/30/1982 | CA1136652A1 Demolition agent for brittle materials |
| 11/30/1982 | CA1136394A1 Resinous polyalkylene oxide adducts for petroleum recovery |
| 11/30/1982 | CA1136355A1 High concentration polymer slurries |
| 11/24/1982 | EP0065191A1 Inhibitors against H2S and CO2 induced corrosion in water-in-oil emulsions |
| 11/23/1982 | US4360061 Formed from an oil, an anionic surfactant and either a polyoxyethylene oxide or pilyvinyl pyrrolidone |
| 11/23/1982 | CA1135950A1 Cycloolefinic compounds in recovery of carbonaceous organic material |
| 11/16/1982 | US4359392 Stabilization of modified cellulose in brines at high temperatures |
| 11/16/1982 | US4359391 Acidizing mixture formed in situ |
| 11/16/1982 | US4359093 Method for enhanced oil recovery in reservoirs containing dissolved divalent metal cations |
| 11/16/1982 | CA1135493A1 Aluminum hydroxide gel system |
| 11/16/1982 | CA1135492A1 Flooding with micellar dispersions containing petroleum sulfonates obtained by sulfonating whole or topped crude oil |
| 11/16/1982 | CA1135491A1 Oil recovery by flooding with micellar dispersions containing crude oil sulfonates |
| 11/16/1982 | CA1135490A1 Aqueous emulsion of an acrylamide polymer for oil recovery |
| 11/10/1982 | EP0064384A1 Alkoxypolyethoxypropane sulfonates, process for their preparation and method for their use in enhanced oil recovery |
| 11/09/1982 | CA1135039A1 Drilling fluid made from abrasive weighting materials |
| 11/02/1982 | US4357423 Microbial heteropolysaccharide |
| 11/02/1982 | US4357248 Treating wells with self-precipitating scale inhibitor |
| 11/02/1982 | US4357245 Water-soluble copolymer and its preparation |
| 11/02/1982 | CA1134855A1 Drilling fluids containing novel compositions of matter |
| 11/02/1982 | CA1134602A1 Oil recovery method using a sulfonate surfactant |
| 10/27/1982 | EP0063471A1 Composition and method for releasing stuck drill pipes |
| 10/26/1982 | US4356096 Method of enhancing the effect of liquid organic lubricants in drilling fluids |
| 10/26/1982 | US4356095 Water-soluble polymers and utilization thereof |
| 10/26/1982 | CA1134300A1 Process for treating xanthomonas fermentation broth for use in displacement of oil from partially depleted reservoirs |
| 10/26/1982 | CA1134261A1 Method of controlling scale in oil recovery operations |
| 10/20/1982 | EP0062939A1 Treating wells with ion-exchange-precipitated scale inhibitor |
| 10/13/1982 | EP0062490A1 Composition for use in oil recovery, its method of use and novel surfactant compounds |
| 10/12/1982 | US4353806 Branched polyethylene oxide or polyvinylpyrrolidone and anionic surfactant |
| 10/12/1982 | US4353805 Injection of aqueous solution of trivalent metal salt of xanthan and acid salt chelating agent |
| 10/12/1982 | US4353804 Improved fluid loss control system |
| 10/12/1982 | CA1133387A1 Selective permeability reduction with polymerizable monomers around steam injection wells |
| 10/06/1982 | EP0061932A1 Composition for use in oil recovery, its method of use, and novel surfactant compounds |
| 10/05/1982 | US4352741 Xanthomonas biopolymer for use in displacement of oil from partially depleted reservoirs |
| 10/05/1982 | US4352396 Water insoluble, oil soluble resin, water soluble ester and acid sensitive emulsifier |
| 10/05/1982 | US4352395 Injection of a magnesium hydroxide suspension through a well bore |
| 10/05/1982 | CA1132786A1 Method and composition for inhibiting corrosion in high temperature, high pressure gas wells |
| 10/05/1982 | CA1132785A1 Method and composition for inhibiting corrosion in high temperature, high pressure gas wells |
| 10/05/1982 | CA1132784A1 Rapid-setting dry packing mix for eliminating bore hole troubles and method of manufacture thereof |
| 09/28/1982 | US4351754 Thickening agent for aqueous compositions |
| 09/28/1982 | CA1132452A1 Lignosulfanates as additives in oil recovery processes involving chemical recovery agents |
| 09/22/1982 | EP0060456A1 Inhibitors against the corrosion of hydrogen sulphide and carbon dioxide in water-in-oil emulsions |
| 09/22/1982 | EP0060455A1 Inhibitors against corrosion by carbon dioxide and hydrogen sulfide in water-in-oil emulsions |
| 09/21/1982 | US4350601 Hydroxyethyl cellulose, xanthan gum, vegetables gums or gelatin treated with an aldehyde |
| 09/21/1982 | US4350600 Method and composition for inhibiting corrosion in high temperature, high pressure gas wells |
| 09/21/1982 | CA1131898A1 Petroleum recovery process using native petroleum surfactants |
| 09/14/1982 | US4349443 Viscosifier and fluid loss control system |
| 09/14/1982 | CA1131539A1 Carboxymethylhydroxyethyl cellulose drilling, workover and completion fluids |
| 09/07/1982 | CA1131002A1 Method for inhibiting corrosion in high temperature, high pressure gas wells |
| 09/02/1982 | WO1982002898A1 Invert emulsions for well-drilling comprising a polydiorganosiloxane and method therefor |
| 09/01/1982 | EP0059037A1 Invert emulsions for well-drilling comprising a polydiorganosiloxane and method therefor |
| 09/01/1982 | EP0058917A1 Water-clay-based drilling fluids, and use of same in well drilling operations |
| 09/01/1982 | EP0058871A1 Process for recovering oil from subterranean reservoirs |
| 08/31/1982 | US4347146 Oil recovery process employing a non-ionic glucan in combination with clay flocculant |
| 08/31/1982 | US4347002 Method and apparatus for the preparation of drilling mud |
| 08/31/1982 | CA1130552A1 Bromides of zinc and calcium for well completion |
| 08/31/1982 | CA1130550A1 Polymer flood filtration improvement |
| 08/31/1982 | CA1130549A1 Aqueous well-drilling fluids |
| 08/25/1982 | EP0058597A1 Thickened aqueous acid solutions, and their use, especially for descaling |
| 08/25/1982 | EP0058371A1 Process for recovering oil from subterranen reservoirs by flooding, using an emulsion |
| 08/24/1982 | US4346013 Thixotropic liquid and process for its production |
| 08/24/1982 | US4345652 Leaching with sodium or potassium hydroxide solution, injection and circulation of saline solution |
| 08/18/1982 | EP0058062A2 Oil recovery by surfactant-alcohol waterflooding |
| 08/18/1982 | EP0057875A2 Water-dispersible hydrophobic thickening agent |
| 08/17/1982 | US4344992 Process for producing organo-silane coated asbestos base material |
| 08/17/1982 | US4344487 Modified lignosulfonates as additives in oil recovery processes involving chemical recovery agents |
| 08/17/1982 | CA1129634A1 Polymer thickener in water-alternating gas process for oil recovery |
| 08/17/1982 | CA1129633A1 Well cementing process and gasified cements useful therein |
| 08/10/1982 | US4343930 Polymerized polyols of tetrahydropyrimidines |
| 08/10/1982 | US4343712 Process for secondary recovery |
| 08/10/1982 | US4343711 Sulfonated ethoxylated alkyl/alkylaryl thiol |
| 08/10/1982 | US4343363 By sequential injection of oxidizer, water, aqueous solution of a dry polymer |
| 08/10/1982 | CA1129429A1 Fluorinated nonionic surfactants |
| 08/03/1982 | US4342866 Heteropolysaccharide S-130 |
| 08/03/1982 | US4342657 Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol |
| 08/03/1982 | US4342484 Well stimulation for solution mining |
| 08/03/1982 | CA1128966A1 Pumpable thixotropic cement slurries for use in cementing pipes in a well |
| 08/03/1982 | CA1128830A1 Aqueous micro-emulsions of organic substances |
| 08/03/1982 | CA1128741A1 Acrylamide-ammonium acrylate emulsion copolymer for oil recovery |
| 07/27/1982 | US4341807 Food products containing microfibrillated cellulose |
| 07/27/1982 | US4341647 Process for secondary recovery |
| 07/27/1982 | US4341645 Comprising lignosulfonates and salt of copolymer of acrylic acid and hydroxypropyl acrylate |