| 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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| 05/31/1983 | US4385935 Method of producing light weight cement for use of cementation of oil and gas wells |
| 05/31/1983 | CA1147327A1 Lignosulfonate well cementing additives |
| 05/31/1983 | CA1147136A1 Drilling and/or completion muds resistant to high temperatures |
| 05/25/1983 | EP0079794A1 Thickening compositions |
| 05/24/1983 | US4384997 Lignin reacted with halocarboxylic acid |
| 05/24/1983 | US4384963 Drilling mud composition containing a starch product and a method for drilling a well |
| 05/24/1983 | CA1146834A1 Surfactant compositions useful in enhanced oil recovery processes |
| 05/18/1983 | EP0079071A1 Water-soluble copolymer, its preparation and its use |
| 05/18/1983 | EP0078938A1 Use of acid groups containing thermostable hydrophilic condensation products of aldehydes and ketones as surface active agents |
| 05/17/1983 | US4383930 Mobility control agent |
| 05/10/1983 | US4383054 Hydrophilic high polymers prepared from aqueous solutions or dispersions of polyoxypropylene polyamine N-N'-polymethylene sulfonates |
| 05/10/1983 | US4382868 Phosphonium, ammonium |
| 05/04/1983 | EP0077947A1 Application of amine-sulphur-dioxide adducts and sulfitobetaines as bactericides against sulfate reducing bacteria |
| 05/03/1983 | US4382003 Breaker system for hydraulic fracturing fluids |
| 05/03/1983 | US4382002 Drilling fluids containing an additive composition |
| 05/03/1983 | CA1145667A1 Treatment of subsuraface gas-bearing formations to reduce water production therefrom |
| 05/03/1983 | CA1145536A1 Surfactant oil recovery process usable in high temperature formations |
| 04/26/1983 | US4381369 Drilling fluid containing a fluid loss control agent of a sulfonated phenol-formaldehyde-phenol resin |
| 04/26/1983 | US4381241 Invert emulsions for well-drilling comprising a polydiorganosiloxane and method therefor |
| 04/26/1983 | US4381035 Simultaneous recovery of thermal values and organic materials from solid carbonaceous fuels and waste disposal process |
| 04/26/1983 | US4381034 Zero free water cement composition and method |
| 04/26/1983 | CA1145246A1 Temporarily plugging a subterranean reservoir with a self-foaming aqueous solution |
| 04/26/1983 | CA1145119A1 Use of steel plant waste dusts for scavenging hydrogen sulfide |
| 04/19/1983 | US4380504 ψ-Emulsans |
| 04/19/1983 | US4380268 Removal of paraffin by pumping in a mixture of ethylene oxide fatty alcohol adduct, sodium silicate, and water; solvents; degreasing detergents |
| 04/19/1983 | US4380266 Reservoir-tailored CO2 -aided oil recovery process |
| 04/12/1983 | US4379490 Method for removal of asphaltene depositions with amine-activated disulfide oil |
| 04/05/1983 | CA1144298A1 Aqueous drilling fluid additive, composition and process |
| 03/29/1983 | USRE31190 Oil well cementing process |
| 03/29/1983 | US4378381 Suspensions containing microfibrillated cellulose |
| 03/29/1983 | US4378049 Aqueous medium contains a galactomannan gum treated with potassium pyroantimonate |
| 03/29/1983 | CA1143894A1 Process for controlled gelation of polymeric solution |
| 03/23/1983 | EP0074622A2 Quaternized polymeric polyoxyalkyl-alkylene polyamine, process for its preparation and its use |
| 03/23/1983 | EP0074621A2 Cationic poly(ethyleneoxide-propyleneoxide) or poly(ethyleneoxide-butylene oxide), its preparation and its use |
| 03/22/1983 | CA1143236A1 Process for making detergent compositions |
| 03/16/1983 | EP0073894A2 Process for recovery oil from a subterranean formation |
| 03/15/1983 | US4376519 Lubricant sheet for magnetic tape cassette |
| 03/15/1983 | CA1142742A1 Polymer-microemulsion complexes and use for the enhanced recovery of oil |
| 03/09/1983 | EP0073612A2 Surfactant enhanced injectivity of xanthan mobility control solutions for tertiary oil recovery |
| 03/09/1983 | EP0073599A1 Polyvalent metal ion chelating agents for xanthan solutions |
| 03/08/1983 | CA1142337A1 Corrosion inhibition in well-drilling operations using aqueous systems containing ammonium carboxylates |
| 03/01/1983 | US4375512 Process for producing low calcium xanthan gums by fermentation |
| 03/01/1983 | CA1141945A1 Preparation of viscous aqueous liquids for wellbore injection |
| 02/23/1983 | EP0072445A2 Temperature stable drilling fluids |
| 02/22/1983 | US4374968 Methods of forming isocyanate polymers |
| 02/22/1983 | US4374740 Water soluble surfactant mobility control agent in oil recovery |
| 02/22/1983 | US4374739 Cationic polymers for stabilization |
| 02/22/1983 | US4374738 Drilling fluid composition |
| 02/22/1983 | US4374737 Nonpolluting drilling fluid composition |
| 02/22/1983 | US4374734 Emulsion breaking of surfactant stabilized crude oil in water emulsions |
| 02/16/1983 | EP0072245A1 High temperature drilling fluids based on sulphonated thermoplastic polymers |
| 02/16/1983 | EP0072244A1 Drilling mud |
| 02/16/1983 | EP0071990A2 Process for stabilizing aqueous oil field fluids |
| 02/15/1983 | US4373586 Method of solvent flooding to recover viscous oils |
| 02/15/1983 | US4373585 Method of solvent flooding to recover viscous oils |
| 02/15/1983 | CA1141147A1 Consolidating underground formation by silicon halide and an acid |
| 02/15/1983 | CA1141146A1 Oil recovery by fluorochemical surfactant waterflooding |
| 02/08/1983 | US4372785 Thickeners, emulsifiers, thixotropy |
| 02/08/1983 | US4372386 Generation of heat in an endothermic-exothermic reversible reaction |
| 02/08/1983 | US4372385 Reacting with water to produce silicon dioxide strengthener |
| 02/08/1983 | US4372381 Method for recovery of oil from tilted reservoirs |
| 02/08/1983 | CA1140740A1 Injection fluid with ph adjusted and saturated with calcium and carbonate ions |
| 02/08/1983 | CA1140739A1 Process for alleviating sulfur deposition in sour gas wells using alkyl naphthalene-based solvent |
| 02/03/1983 | WO1983000337A1 Self-inverting water-in-oil emulsions of water-soluble polymers and a process for preparing the emulsions |
| 02/01/1983 | US4371626 Method of upgrading crude sodium bentonite |
| 02/01/1983 | US4371444 Nonionic or anionic surfactants |
| 02/01/1983 | US4371443 Method of and composition for acidizing subterranean formations |
| 02/01/1983 | CA1140455A1 Method of consolidating an underground formation |
| 02/01/1983 | CA1140328A1 Aqueous solutions containing crosslinked hydroxyethyl carboxyethyl cellulose |
| 02/01/1983 | CA1140327A1 Oil recovery by waterflooding employing cellulose sulfate polymer for mobility control |
| 02/01/1983 | CA1140325A1 Method of treating wells with self-precipitating scale inhibitor |
| 02/01/1983 | CA1140324A1 Oil-well cement with silica to produce light weight cement |
| 01/25/1983 | US4370243 Oil recovery by surfactant-alcohol waterflooding |
| 01/25/1983 | US4370166 Hollow glass microspheres |
| 01/25/1983 | US4370146 Infrared absorption determination of sulfonate surfactants utilizing deuterated sulfonates |
| 01/25/1983 | US4370078 Using a polymerizable polyethylenic hydrocarbon and a 2-component catalyst |
| 01/25/1983 | US4369845 Oil well blow-out control |
| 01/25/1983 | US4369844 Method using lost circulation material for sealing permeable formations |
| 01/25/1983 | US4369843 Salt solution containing a water soluble salt that is insoluble in saturated solution |
| 01/25/1983 | CA1140120A1 High viscosity complexed aqueous gels and methods and additives for forming such gels |
| 01/25/1983 | CA1139928A1 Shear thickening fluid |
| 01/25/1983 | CA1139927A1 Aqueous acid compositions for dissolution of silicates |
| 01/19/1983 | EP0070077A2 Light-duty detergent granule composition |
| 01/19/1983 | EP0070076A2 Foaming dishwashing liquid compositions |
| 01/19/1983 | EP0070075A2 Foaming dishwashing liquid compositions |
| 01/19/1983 | EP0070074A2 Foaming surfactant compositions |
| 01/18/1983 | USRE31127 Using a sulfoalkylated lignin composition |
| 01/18/1983 | US4369124 High viscosity complexed aqueous gels and methods and additives for forming such gels |
| 01/18/1983 | CA1139698A1 Enzymatic method for improving the injectability of polysaccharides |
| 01/11/1983 | US4368136 Carrier fluids for sand or gravel |
| 01/11/1983 | CA1139089A1 Invert emulsion well-servicing fluids |
| 01/11/1983 | CA1139088A1 Additive for deep-well cement slurries |
| 01/05/1983 | EP0068601A1 Drilling fluids containing an additive composition |
| 01/04/1983 | US4367093 Well cementing process and gasified cements useful therein |
| 01/04/1983 | CA1138770A1 Thermal insulation method |
| 12/28/1982 | US4366194 Rendering porous structures impermeable by treatment with pH insensitive gelable compositions of amide polymers and composition |
| 12/28/1982 | US4366074 Oil well treating method and composition |
| 12/28/1982 | US4366073 Oil well treating method and composition |
| 12/28/1982 | US4366072 Oil well treating method and composition |
| 12/28/1982 | US4366071 Oil well treating method and composition |