| 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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| 07/27/1982 | US4341265 Method of recovering petroleum from a subterranean reservoir incorporating a polyether polyol |
| 07/27/1982 | CA1128555A1 Retarded aqueous hydraulic cement slurry |
| 07/27/1982 | CA1128415A1 Method for recovering oil from an underground formation |
| 07/20/1982 | US4340678 Xanthomonas biopolymer for use in displacement of oil from partially depleted reservoirs |
| 07/20/1982 | US4340525 Additive for deep-well cement slurries |
| 07/20/1982 | US4340492 Polyoxyalkylene glycol aryl sulfonate-succinimido compound |
| 07/20/1982 | US4340427 Well cementing process and gasified cements useful therein |
| 07/20/1982 | CA1127962A1 Surfactant waterflood method for the recovery of oil |
| 07/13/1982 | US4339349 Corrosion inhibitors for limited oxygen systems |
| 07/13/1982 | CA1127382A1 Method for fracturing subterranean formations |
| 07/08/1982 | WO1982002177A1 Composition and method allowing the collection and valorization of oil products |
| 07/07/1982 | EP0055434A1 Addition products from polyether block polymers and bisglycidyl ethers, process for their production and their use |
| 07/07/1982 | EP0055433A1 Oxalkylated addition products from ethylene oxide-propylene oxide block polymers and bisglycidyl ethers, and their use |
| 07/06/1982 | US4338432 Indican and suspensions and gels thereof and their uses |
| 07/06/1982 | US4338203 Process for secondary recovery |
| 07/06/1982 | US4337828 Method of recovering petroleum from a subterranean reservoir incorporating polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols |
| 06/30/1982 | EP0055200A1 Composition and process for the recuperation and the valorisation of petroleum products |
| 06/30/1982 | EP0054804A1 Zinc complexes, a process for their preparation and their use as anti-wear additives |
| 06/29/1982 | US4337160 Acid soluble weighting agent for well drilling, workover and completion fluids |
| 06/29/1982 | US4337159 Shear-stabilized emulsion flooding process |
| 06/29/1982 | US4337157 Magnesium oxide, calcium silicate |
| 06/29/1982 | US4336842 Method of treating wells using resin-coated particles |
| 06/24/1982 | WO1982002073A1 Copolymers soluble in an aqueous medium and stable in an acid medium,preparation and use thereof |
| 06/24/1982 | WO1982002052A1 Cross-linkable polymer composition soluble in an aqueous medium,preparation and tuilization thereof |
| 06/23/1982 | EP0054143A1 Use of polyhydroxypolyalkylene polyamine salts of malein-amide acids as corrosion inhibitors in water-in-oil emulsions |
| 06/22/1982 | US4336146 Water insoluble hydroxyethyl cellulose or methyl cellulose |
| 06/22/1982 | US4336145 Hydration inhibitor composition |
| 06/22/1982 | US4335788 With calcium carbonate or barium carbonate used to control expansion |
| 06/22/1982 | US4335787 Surfactant system comprising a hydrocarbon sulfonate and a nitrile |
| 06/22/1982 | US4335754 Prevention of hydrogen embrittlement of metals in corrosive environments |
| 06/22/1982 | CA1126300A1 Low density cement slurry and its use |
| 06/22/1982 | CA1126007A1 Scavenging hydrogen sulfide in an oil well |
| 06/15/1982 | CA1125930A1 Permanent cobalt catalyst for sulfite oxygen scavenger |
| 06/15/1982 | CA1125637A1 Cosurfactant blends for oil recovery surfactant system |
| 06/15/1982 | CA1125492A1 Acetal-acid compositions |
| 06/10/1982 | WO1982001911A1 Process for selectively reducing the permeability of a subterranean formation |
| 06/08/1982 | US4333764 Nitrogen-gas-stabilized cement and a process for making and using it |
| 06/08/1982 | CA1125001A1 Lignosulfonate salt in drilling fluid |
| 06/01/1982 | US4332967 Corrosion inhibitors useful in oil wells and gas wells |
| 06/01/1982 | US4332688 Aqueous acid solution containing an acrylamido alkanesulfonic acid polymer |
| 06/01/1982 | US4332619 Expansive admixture |
| 06/01/1982 | US4332297 Using acrylic acid and acrylamide polymers with an alkoli metalsilicate |
| 05/26/1982 | EP0052537A1 Propping agent based upon zirconium oxide and silica for deep geological fractures |
| 05/25/1982 | US4331796 Acrylamide-modified vinyl sulfonic acid copolymer thickener |
| 05/25/1982 | US4331543 Method of retarding degradation of surfactants employed in waterflooding |
| 05/25/1982 | CA1124259A1 Petroleum sulfonates |
| 05/25/1982 | CA1124171A1 Treating underground formations |
| 05/18/1982 | USRE30935 Method of starting gas production by injecting nitrogen-generating liquid |
| 05/18/1982 | US4330450 For use in paper making, sewage treatment, drilling muds, enhanced oil recovery |
| 05/18/1982 | US4330418 Determining average equivalent weights using brines; enhanced oil recovery |
| 05/18/1982 | US4330414 Free-flowing particles of solvated hydroxyethylcellulose ; thickeners; oil wells; brines |
| 05/18/1982 | US4330037 Well treating process for chemically heating and modifying a subterranean reservoir |
| 05/12/1982 | EP0051230A1 Suspensions containing microfibrillated cullulose, and process for their preparation |
| 05/11/1982 | US4329448 Microbial heteropolysaccharide |
| 05/11/1982 | US4329236 Technique for tertiary oil recovery |
| 05/11/1982 | US4328864 Methods for recovery of oil |
| 05/11/1982 | CA1123431A1 Low calcium xanthan gum |
| 05/11/1982 | CA1123186A1 Process for the recovery of petroleum from subterranean formations |
| 05/11/1982 | CA1123184A1 Well treating and compositions |
| 05/05/1982 | EP0012759B1 Stabilized petroleum sulfonate products and their use in subterranean oil recovery |
| 05/04/1982 | US4328038 Resin coated aluminum |
| 05/04/1982 | US4328036 High temperature expanding cement composition and use |
| 05/04/1982 | CA1122793A1 Oxyalkylated sulfonate in aqueous alkaline solution for oil recovery |
| 04/27/1982 | US4326985 Micellar solutions of thin film spreading agents comprising an acylated polyether polyol |
| 04/27/1982 | US4326984 Demulsifiers |
| 04/27/1982 | US4326983 Micellar solutions of thin film spreading agents comprising a polyether polyol |
| 04/27/1982 | US4326969 Process for secondary recovery |
| 04/27/1982 | US4326968 Method for breaking petroleum emulsions and the like using micellar solutions of thin film spreading agents comprising polyepoxide condensates of resinous polyalkylene oxide adducts and polyether polyols |
| 04/27/1982 | CA1122518A1 Recovery of bitumen from tar sand material |
| 04/21/1982 | EP0049818A1 Solutions of high molecular weight polymers having an increased flow resistance, and process for their preparation |
| 04/20/1982 | US4326037 Enzymatic method for improving the injectability of polysaccharides |
| 04/20/1982 | US4325433 Injecting an aqueous solution of mineral acid or organic acid to potentiate enhanced oil recovery |
| 04/14/1982 | EP0049484A1 A process for the production of a fluid loss reducing additive for an oil-based well working fluid |
| 04/13/1982 | US4324669 Foamed high viscosity aqueous inorganic acid solutions and methods of using the same |
| 04/13/1982 | US4324668 Removing scale from subterranean well formations |
| 04/13/1982 | US4324592 Magnesium oxide and acid phosphate |
| 04/13/1982 | US4324298 Scavenging hydrogen sulfide |
| 04/07/1982 | EP0049191A1 Process for preparing completion fluids, and pastes used in carrying out the process |
| 04/07/1982 | EP0049012A1 Treatment of pseudoplastic polysaccharide solutions |
| 04/06/1982 | US4323463 Secondary recovery process |
| 04/06/1982 | US4323124 Coating with lecithin |
| 04/06/1982 | US4323123 Gelled compositions and well treating |
| 04/06/1982 | CA1121145A1 Drilling fluid containing crosslinked polysaccharide derivative |
| 04/01/1982 | WO1982001007A1 Stimulation and cleanup of oil-and/or gas-producing wells |
| 03/30/1982 | US4322307 Process for alleviating sulfur deposition in sour gas wells |
| 03/30/1982 | US4322306 Used on calcareous formations |
| 03/30/1982 | US4322301 Comprising a clay, phosphate, and reaction product of a lignaosulfonate and a acrylic compound |
| 03/30/1982 | US4322300 Phenol-formaldehyde resin, sulfonated as fluid loss control agent |
| 03/30/1982 | US4321968 Methods of using aqueous gels |
| 03/23/1982 | US4320994 Preparation of grout for stabilization of abandoned in-situ oil shale retorts |
| 03/23/1982 | CA1120473A1 Dissolving barium sulphate scale |
| 03/17/1982 | EP0047370A1 Process for the recovery of oil from a subterranean formation |
| 03/17/1982 | EP0047369A1 Process for the recovery from a subterranean formation of oil lacking in emulsion to a great extent |
| 03/16/1982 | US4320014 Injection carbon tetrachloride, isopropyl alcohol, water, and ferric chloride |
| 03/16/1982 | US4319636 Surfactant waterflood oil recovery process |
| 03/16/1982 | CA1119794A1 Method and installation for flooding petroleum wells and oil-sands |
| 03/09/1982 | US4318816 Surfactant waterflooding enhanced oil recovery method using stabilized surfactant solution |
| 03/09/1982 | US4318815 Sulfated biopolymers for use in recovering petroleum from a subterranean formation |
| 03/09/1982 | US4318732 Methods of improving the viscosity building properties of colloidal clays |
| 03/09/1982 | CA1119511A1 Oil recovery using a dimethylamide in a fluid carrier |