| 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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| 03/26/1985 | US4506733 Metal salt, low viscosity |
| 03/26/1985 | CA1184470A1 Preparation process of acid phase and hydrophobic phase microemulsions |
| 03/19/1985 | US4506044 Microbial heteropolysaccharide |
| 03/19/1985 | US4505833 Stabilizing clayey formations |
| 03/19/1985 | US4505828 Amphoteric water-in-oil self-inverting polymer emulsion |
| 03/19/1985 | US4505827 Triblock polymers of the BAB type having hydrophobic association capabilities for rheological control in aqueous systems |
| 03/19/1985 | US4505826 Prepackaged crosslinked polymer |
| 03/19/1985 | US4505825 Oil well drilling clay conditioner |
| 03/19/1985 | US4505751 Mixing, injelting into well bore, and curing |
| 03/19/1985 | CA1184023A1 Oil recovery by surfactant-alcohol waterflooding |
| 03/19/1985 | CA1184022A1 Use of surfactants to improve oil recovery during steamflooding |
| 03/13/1985 | EP0134173A1 Additive compositions for drilling fluids |
| 03/13/1985 | EP0134084A1 Well drilling and production fluids employing parenchymal cell cellulose |
| 03/13/1985 | EP0134021A1 Process for reducing water production in oil production wells |
| 03/12/1985 | US4504622 From vinyl alcohol polymer |
| 03/12/1985 | US4504400 Water, hydroxyalkyl cellulose, fluoboric acid, hydrochloric acid |
| 03/12/1985 | US4504399 Maleinized oil |
| 03/12/1985 | US4503912 Polyvalent cation |
| 03/12/1985 | US4503909 Hrdrolyzed polyacrylamide |
| 03/12/1985 | CA1183985A1 High polymer solutions having an increased drag and process for their manufacture |
| 03/12/1985 | CA1183838A1 Imidazoline based corrosion inhibitors which inhibit corrosion caused by co.sub.2 and h.sub.2s |
| 03/12/1985 | CA1183832A1 Method of drilling a borehole through cavernous underground formations |
| 03/12/1985 | CA1183678A1 H.sub.3po.sub.4/hf siliceous formation treating composition and method |
| 03/06/1985 | EP0133742A1 Method of treating a subterranean formation with a diverting agent |
| 03/06/1985 | EP0133725A1 Method for removing and/or retarding paraffin buildup on surfaces in contact with crude oil or natural gas containing such paraffin |
| 03/05/1985 | US4503170 Shear thickening fluid |
| 03/05/1985 | US4502969 Improved suspension of weighting agents |
| 03/05/1985 | US4502967 Polysaccharide, titanium chelate, crosslinking retarder |
| 03/05/1985 | US4502966 Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids |
| 03/05/1985 | US4502965 Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids |
| 03/05/1985 | US4502964 Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids |
| 03/05/1985 | US4502963 Use of certain materials as thinners in oil based drilling fluids |
| 03/05/1985 | US4502959 Purification of secondary recovery waterflood liquids |
| 03/05/1985 | US4502541 Staged preformed-surfactant-optimized aqueous alkaline flood |
| 03/05/1985 | US4502540 Tertiary oil recovery |
| 03/05/1985 | US4502538 Polyalkoxy sulfonate, CO2 and brine drive process for oil recovery |
| 03/05/1985 | CA1183341A1 Surfactant enhanced injectivity of xanthan mobility control solutions for tertiary oil recovery |
| 03/05/1985 | CA1183340A1 High temperature stable fluid loss control system |
| 02/26/1985 | US4501675 Enhanced oil recovery |
| 02/26/1985 | US4501674 Contacting with enzyme catalyst, alkanol substrate and at least one hydrocarbon |
| 02/26/1985 | US4501673 Using betaine surfactant |
| 02/26/1985 | US4501672 Organic compounds |
| 02/26/1985 | US4501668 Mixing with acrolein-formaldehyde condensation product for deodorizing |
| 02/26/1985 | CA1182991A1 Clay stabilization during oil and gas well cementing operations |
| 02/19/1985 | US4500546 Suspensions containing microfibrillated cellulose |
| 02/19/1985 | US4500437 Water soluble copolymers for use in fracture-acidizing of wells |
| 02/19/1985 | US4500436 Saltwater and hard water bentonite mud |
| 02/19/1985 | US4500357 Water soluble borate, terpolymer |
| 02/19/1985 | CA1182629A1 Sand consolidation methods |
| 02/14/1985 | WO1985000539A1 Method for removing and/or retarding paraffin buildup on surfaces in contact with crude oil or natural gas containing such paraffin |
| 02/13/1985 | EP0133071A2 Modified organophilic clay |
| 02/13/1985 | EP0132630A2 Polymers containing phosphonic acid groups, their preparation and their use |
| 02/12/1985 | US4499311 Water soluble resols and method for producing them |
| 02/12/1985 | US4499232 Homo-(or co-)polymer containing amidocarbonyl group with bisacylamido compound |
| 02/12/1985 | US4499189 Bacteria carrying plasmid having temperature dependent plasmid copy number |
| 02/12/1985 | US4499006 Corrosion inhibitors |
| 02/12/1985 | US4498997 Method and composition for acidizing subterranean formations |
| 02/12/1985 | US4498995 A sealing slurry of expanded particles of clay, slate or clay shale |
| 02/12/1985 | US4498994 N-methyl-2-pyrrocidone and polyvinyl pyrrolidone as thickener |
| 02/12/1985 | US4498540 Polyvinyl alcohol-aldehyde gel |
| 02/12/1985 | US4498539 Selective plugging of highly permeable subterranean strata by in situ _gelation of polymer solutions |
| 02/12/1985 | US4498538 Using organosilane compounds |
| 02/12/1985 | CA1182392A1 Unplugging brine-submerged perforations in a well |
| 02/05/1985 | US4497717 Compositions for use in oil recovery and method of use |
| 02/05/1985 | US4497596 Method of minimizing fines migration in a subterranean formation |
| 02/05/1985 | CA1182027A1 Dispersible hydrophilic polymer compositions |
| 02/05/1985 | CA1181938A1 Polyvalent metal ion chelating agents for xanthan solutions |
| 01/31/1985 | WO1985000403A1 Method for formation treatment of well bottom zone |
| 01/31/1985 | WO1985000402A1 Well drilling and production fluids employing parenchymal cell cellulose |
| 01/29/1985 | US4496468 Well completion fluids |
| 01/29/1985 | US4495996 Method for scale removal and scale inhibition in a well penetrating a subterranean formation |
| 01/29/1985 | US4495995 Using high density foams prepared from surfactants and carbon dioxide |
| 01/29/1985 | US4495800 Method for determining optimum concentration of hydration inhibitor for clays in drilling fluids |
| 01/29/1985 | CA1181579A1 Enhanced oil recovery methods and systems |
| 01/23/1985 | EP0132044A1 Method and compositions for fracturing subterranean formations |
| 01/23/1985 | EP0131908A2 Salt free phosphobetaines |
| 01/22/1985 | US4495336 Corrosion resistance; oil and gas wells; metal pickleing; cleaning compounds |
| 01/22/1985 | US4495287 Process for producing gene products of plasmid having temperature dependent plasmid copy number |
| 01/22/1985 | US4494610 Method for releasing stuck drill pipe |
| 01/22/1985 | US4494606 Process for improving vertical conformance in a near well bore environment |
| 01/22/1985 | US4494604 Extraction of acidic materials from organic liquids and use thereof in enhanced oil recovery |
| 01/22/1985 | US4494318 Apparatus and method for manufacturing cured resin-coated particles for use as a proppant |
| 01/22/1985 | CA1181233A1 Oil recovery process employing a non-ionic glucan in combination with clay flocculant |
| 01/16/1985 | EP0131124A2 Thermally stable drilling fluid additive |
| 01/15/1985 | US4493875 Mixing core particles with adhesives then hollow microparticles, then curing |
| 01/15/1985 | US4493775 Reaction product of cyclohexylamine, excess formaldehyde, and acetophenone |
| 01/15/1985 | US4493774 Method for improving injectivities of biopolymer solutions |
| 01/15/1985 | US4493371 Recovering oil by injecting aqueous alkali, cosurfactant and gas |
| 01/15/1985 | US4493370 With sodium chloride and petroleum sulfonate |
| 01/15/1985 | CA1180974A1 Foaming surfactant compositions |
| 01/15/1985 | CA1180973A1 Foaming surfactant compositions |
| 01/09/1985 | EP0130891A1 Biopolymer compositions and process for their preparation |
| 01/09/1985 | EP0130732A1 Anionic polymer composition and its use for stimulating a subterranean formation |
| 01/09/1985 | EP0130647A2 Process for preparing xanthomonas heteropolysaccharide, heteropolysaccharide as prepared by the latter process and its use |
| 01/08/1985 | US4492494 Process for stabilizing aqueous solutions used in the preparation of hydrophilic polymeric gels |
| 01/02/1985 | EP0130006A1 Method and composition for reducing the corrosivity of acids to ferrous metals |
| 01/02/1985 | CA1180266A Foam and particulate material with steam for permeability alteration in subsurface formations |
| 01/02/1985 | CA1180249A Highly stable alcohol foams and methods of forming and using such foams |
| 01/01/1985 | US4491538 Detergents, nonionic surfactants |
| 01/01/1985 | US4491525 Oil recovery with surfactant flooding |