| 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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| 08/28/1985 | EP0153192A2 Corrosion inhibitor for heavy brines |
| 08/28/1985 | EP0152814A2 Hydrosoluble polymers and their use as additives in drilling fluids |
| 08/28/1985 | EP0152762A2 Process for improved oil recovery from subterranean oil formations |
| 08/27/1985 | US4537919 Gelation of hydrocarbon solutions of blends of associating and non-associating polymers |
| 08/27/1985 | US4537918 Cement compositions for cementing wells, allowing pressure gas-channeling in the cemented annulus to be controlled |
| 08/27/1985 | US4537700 Organic gels |
| 08/27/1985 | US4537688 Low and high temperature drilling fluids based on sulfonated terpolymer ionomers |
| 08/27/1985 | US4537253 Micellar slug for oil recovery |
| 08/27/1985 | CA1192484A1 Permeability reduction in subterranean reservoirs |
| 08/27/1985 | CA1192388A1 Method of placing and consolidating a mass of particulate material and composition for use in carrying out said method |
| 08/21/1985 | EP0151833A1 Method of increasing hydrocarbon production by remedial well treatment |
| 08/20/1985 | US4536539 Dilatant behavior of interpolymer complexes in aqueous solution |
| 08/20/1985 | US4536318 Foaming surfactant compositions |
| 08/20/1985 | US4536317 Mixture of alkylpolysaccharide surfactant, anionic surfactant and water soluble inorganic salt |
| 08/20/1985 | US4536305 Methods for stabilizing swelling clays or migrating fines in subterranean formations |
| 08/20/1985 | US4536303 N-vinylpyrrolidoneaminoalkyl acrylate copolymer; antifouling agents; oil and gas well bores |
| 08/20/1985 | US4536302 Corrosion inhibition of aqueous brines |
| 08/20/1985 | US4536301 Using surfactant slug |
| 08/20/1985 | US4536300 Substitute oxazolines as co-surfactants |
| 08/20/1985 | US4536297 Clay, and vinylamide-vinylsulfonate terpolymer |
| 08/20/1985 | US4536296 Drilling and completion muds useful at elevated temperatures |
| 08/20/1985 | US4536222 Treating with sulfur trioxide containing fluid and rinsing; gas and oil wells |
| 08/20/1985 | US4535844 Extraction of energy by lowering fluid pressure and using it to control polymer flow |
| 08/20/1985 | CA1192035A1 Process for the preparation of a continuous oil phase microlatex through polymerisation of an oil in water hydrosoluble monomeric micro-emulsion, microlatexes so made and theiruse for induced petroleum extraction |
| 08/13/1985 | US4535153 Containing glucuronic acid, mannose, glucose and rhamnose |
| 08/13/1985 | US4534870 Crosslinker composition for high temperature hydraulic fracturing fluids |
| 08/13/1985 | US4534412 Continuous permeability reduction in subterranean reservoirs |
| 08/13/1985 | US4534411 Surfactants having alpha-olefin sulfonate and ethoxylated polyoxyethylene alkyl ethers |
| 08/13/1985 | CA1191675A1 Non polluting fluidising additive for drilling made up with salt and/or soft water |
| 08/07/1985 | EP0150718A2 Process and agent to prevent the blocking of oil-containing formations by formation of emulsions using asphalt separation |
| 08/06/1985 | US4533708 Polyampholyte polymer |
| 08/01/1985 | WO1985003327A1 Particulate ceramic useful as a proppant |
| 07/31/1985 | EP0150112A2 Fracturing method for stmulation of wells |
| 07/30/1985 | US4532053 Micellar slug for oil recovery |
| 07/30/1985 | US4532052 Polymeric well treating method |
| 07/30/1985 | US4532051 Surfactant compositions useful in enhanced oil recovery processes |
| 07/30/1985 | US4531594 Method and compositions for fluid loss and seepage loss control |
| 07/30/1985 | US4531586 Method of solvent stimulation of heavy oil reservoirs |
| 07/30/1985 | CA1191146A1 Substituted cyclic and heterocyclic methane sulfonates |
| 07/30/1985 | CA1191020A1 Hydraulic fracturing propping agent |
| 07/24/1985 | EP0149173A1 Tributylphenolether-glycidyl-sulphonates, process for their preparation and their use |
| 07/23/1985 | US4530402 Low density spacer fluid |
| 07/23/1985 | US4530400 Process for enhanced oil recovery employing synthetic sulfonates and petroleum sulfonate blends |
| 07/17/1985 | EP0148517A1 Use of olefin sulphonate compositions in enhanced oil recovery processes |
| 07/16/1985 | USRE31946 Process for consolidating and sealing off geological and artificially deposited rock and earth formations |
| 07/16/1985 | US4529523 Hydrophobically modified polymers |
| 07/16/1985 | US4529522 Alkyl sulfonates of polyvinyl alcohol as viscosifiers in saline solutions |
| 07/09/1985 | US4528383 Substituted cyclic and heterocyclic methane sulfonates |
| 07/09/1985 | US4528348 Micellar process for the production of acrylamide-alkyl acrylamide copolymers |
| 07/09/1985 | US4528106 Glucoside surfactants |
| 07/09/1985 | US4528105 Micelle solution compositions for recovering crude oil |
| 07/09/1985 | US4528104 Oil based packer fluids |
| 07/09/1985 | US4528102 Chemically cleaning aqueous fluid of insoluble solids |
| 07/09/1985 | US4527628 Method of temporarily plugging portions of a subterranean formation using a diverting agent |
| 07/09/1985 | US4527627 Method of acidizing propped fractures |
| 07/09/1985 | CA1190034A1 Methods of increasing hydrocarbon production from subterranean formations |
| 07/09/1985 | CA1190033A1 Chemically-aided gas cap drive |
| 07/03/1985 | EP0146981A1 Novel applications of scleroglucane in the treatment of oil wells and oil drilling installations |
| 07/03/1985 | EP0037418B1 Shear thickening fluid |
| 07/02/1985 | US4526947 With N-methylolacrylamide and sodium styrene sulfonate |
| 07/02/1985 | US4526695 Composition for reducing the permeability of subterranean formations |
| 07/02/1985 | US4526693 Shale and salt stabilizing drilling fluid |
| 07/02/1985 | US4526240 Method of inhibiting lost circulation from a wellbore |
| 07/02/1985 | US4526231 Process for tertiary oil recovery using tall oil pitch |
| 06/26/1985 | EP0146171A1 Process and composition for cementing wells passing through salt formations |
| 06/25/1985 | US4525562 Dicarboxylic acid and catechol-based addition polymers |
| 06/25/1985 | US4525522 Drilling fluids based on sulfonated thermoplastic polymers having improved low temperature rheological properties |
| 06/25/1985 | US4525515 Thickening and flocculating agents |
| 06/25/1985 | US4525496 Self-inverting water-in-oil emulsions of water-soluble polymers |
| 06/25/1985 | US4525293 Phosphonomethylated derivative of 1,3-diaminopropanol-2 |
| 06/25/1985 | US4525285 Reacting sodium or potassium silicates with cations in drilling water to form seal |
| 06/25/1985 | US4524829 Method of altering the permeability of a subterranean formation |
| 06/25/1985 | US4524828 Hydraulic cement, titanium chelate crosslinking agents, cellulose ether or vinyl or acrylic polymer |
| 06/25/1985 | CA1189649A1 Water soluble copolymers |
| 06/25/1985 | CA1189444A1 Additive for inclusion in a heavy oil reservoir undergoing steam injection |
| 06/25/1985 | CA1189303A1 Method for recovering oil from sub-terranean deposits |
| 06/25/1985 | CA1189302A1 Activation of hydroxyethyl cellulose for use in heavy brines |
| 06/25/1985 | CA1189301A1 Invert emulsion well servicing fluids |
| 06/25/1985 | CA1189300A1 Balanced-activity improved inverse emulsion to inhibit brittle lutite hydration in oil fields |
| 06/19/1985 | EP0145217A1 Biopolymer composition having enhanced filterability |
| 06/19/1985 | EP0145151A1 Thixotropic cements for use in wells |
| 06/19/1985 | EP0144875A2 Fluid-loss additive for cements used in deep-drilling |
| 06/18/1985 | US4524023 Bicyclodecyl ether sulfonates and compositions containing the same |
| 06/18/1985 | US4524003 Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations |
| 06/18/1985 | US4524002 Foaming agent |
| 06/18/1985 | US4523642 Oil recovery process employing CO2 produced in situ |
| 06/18/1985 | CA1189237A1 Water soluble, crosslinkable polymer compositions, their preparation and use |
| 06/18/1985 | CA1188955A1 Silicone emulsifier composition, invert emulsions therefrom and method therefor |
| 06/18/1985 | CA1188954A1 Defoamers for aqueous liquids containing soluble zinc salts |
| 06/18/1985 | CA1188878A1 Aqueous well drilling fluids |
| 06/12/1985 | EP0144140A2 Materials for use in drilling muds |
| 06/11/1985 | US4523010 Dihydroxypropyl mixed ether derivatives of cellulose |
| 06/11/1985 | US4522732 Process for recovering petroleum from a geological formation |
| 06/11/1985 | US4522731 Hydraulic fracturing propping agent |
| 06/11/1985 | US4522658 Method and composition for protecting metal surfaces from oxidative environments |
| 06/11/1985 | US4522653 Copolymer of sodium vinylsulfonate and acrylamide or acrylic acid |
| 06/11/1985 | US4522265 Method for fracturing of oil shale |
| 06/11/1985 | US4522263 Stem drive oil recovery method utilizing a downhole steam generator and anti clay-swelling agent |
| 06/11/1985 | US4522261 Injecting bacillus cells |
| 06/06/1985 | WO1985002443A1 Method for controlled introduction of reagent into a liquid |