Patents
Sitemap › C09 - Dyes; Paints; Polishes; Natural resins; Adhesives; Compositions not otherwise provided for; Applications of materials not otherwise provided for › C09K - Materials for applications not otherwise provided for; Applications of materials not otherwise provided for › C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
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)
11/1985
11/26/1985US4555558 High temperature fluid loss additive, stabilizer for brine clay drilling fluids
11/26/1985US4555493 Aluminosilicate ceramic proppant for gas and oil well fracturing and method of forming same
11/26/1985US4555351 Olefin sulfonate surfactant
11/26/1985US4555269 Hydrolytically stable polymers for use in oil field cementing methods and compositions
11/26/1985US4554974 Method of enhanced oil recovery employing thickened amphoteric surfactant solutions
11/21/1985WO1985005146A1 Surfactant compositions for steamfloods
11/21/1985WO1985005118A1 Drilling fluid
11/21/1985EP0161926A2 Polymeric compositions
11/21/1985EP0161858A2 Composition for altering the permeability of a subterranean formation
11/21/1985EP0161511A2 Pseudomonas bacteria, emulsifying composition comprising pseudomonas bacteria and method of producing a composition comprising pseudomonas bacteria
11/21/1985EP0161411A2 Organophilic clay gellant and process for its production
11/19/1985US4554082 Fracturing method for stimulation of wells utilizing carbon dioxide based fluids
11/19/1985US4554081 High density well drilling, completion and workover brines, fluid loss reducing additives therefor and methods of use
11/19/1985US4554080 Aqueous drilling fluids containing alkenyl succinic anhydrides
11/19/1985US4553601 Method for fracturing subterranean formations
11/19/1985US4553597 Process for eliminating clays from rocks and sedimentary environments
11/19/1985US4553596 Well completion technique
11/19/1985US4553594 Flow control method
11/19/1985US4553593 Oil recovery method
11/19/1985CA1196775A1 Viscous heavy brines and method for their manufacture
11/12/1985US4552675 Hydraulic fluids
11/12/1985US4552674 Composition and method for treating a subterranean formation
11/12/1985US4552673 Blend of alkyl phenol ethoxylates and alkyl phenol glycoxylates and their use as surfactants
11/12/1985US4552672 Acetylenic alcohol, antimony compound, corrosion resistance
11/12/1985US4552670 Amphoteric water-in-oil self-inverting polymer emulsion
11/12/1985US4552668 Oxidation of sulfides in polymer-thickened aqueous solution
11/12/1985US4552217 Microbiocidal anionic sequesterants with polyvalent metal cations for permeability correction process
11/12/1985US4552215 Method of gravel packing a well
11/12/1985CA1196489A1 Drilling mud viscosification agents based on sulfonated ionomers
11/12/1985CA1196488A1 High temperature drilling fluids based on sulfonated thermoplastic polymers
11/06/1985EP0160514A2 Organo-clays
11/05/1985US4551513 Water soluble copolymers
11/05/1985US4551262 Composition for preventing deposition of inorganic salts
11/05/1985US4551256 Slurry excavating method
11/05/1985CA1196343A1 Ammonium salts of polymaleic acids and use as corrosion inhibitors in water-in-oil emulsions
11/05/1985CA1196303A1 Method of enhancing oil recovery by use of exopolymer- producing microorganisms
11/05/1985CA1196271A1 Moderated borohydride-induced reservoir dewatering
10/1985
10/30/1985EP0159837A2 Stimulation of oil and gas wells with phosphate ester surfactants
10/30/1985EP0159313A1 Well drilling, workover and completion fluids.
10/29/1985US4549973 Decolorization of calcium bromide brines
10/29/1985US4549609 Adding a compound containing ammoniacal nitrogen to stabilize
10/29/1985US4549607 Micellar slug for oil recovery
10/22/1985US4548982 Drilling fluids
10/22/1985US4548732 With ammonium fluoride and weak acid
10/22/1985US4548721 Using amine modified amine and surfactant
10/22/1985US4548720 Removal of hydrogen sulfide from drilling fluids
10/22/1985US4548708 Process for removing hydrogen sulfide from natural gas, oil and mixtures thereof
10/22/1985US4548272 Redox catalysts
10/22/1985US4548270 Controlling gelation with water soluble phosphate
10/22/1985US4548268 Method for oil recovery using a polymer containing fluid
10/16/1985EP0158486A1 Stable forms of dialkylaromatic sulphonates
10/16/1985EP0157957A1 Diverting material and method of use for well treatment
10/16/1985EP0157907A2 Drilling mud compositions
10/15/1985US4547468 Polycrystalline ceratmic sphere having a dense case; oil and gas wells
10/15/1985US4547299 Drilling fluid containing a copolymer filtration control agent
10/15/1985US4547298 Polymer and crosslinkable monomer, water, and clay
10/15/1985US4547297 High temperature drilling mud stabilizer
10/15/1985US4546784 Drag reduction agent
10/09/1985EP0157055A2 Oil field cementing methods and compositions
10/09/1985EP0157046A2 Well cementing methods and compositions
10/08/1985US4545912 Two-tailed surfactants having one aromatic containing tail and their use in chemical waterflooding
10/08/1985US4545911 Waterflooding; enhanced oil recovery
10/08/1985CA1194685A1 Process for the production of sintered spheres
10/02/1985EP0156646A1 High charge density, cationic methacrylamide based monomers and their polymers
10/02/1985EP0156631A2 Corrosion inhibitors
10/02/1985EP0156270A2 Particles superficially modified by hydrophilic and hydrophobic groups
10/02/1985EP0156031A1 Method of oil recovery
10/02/1985EP0156030A1 Aqueous drilling fluid
10/01/1985US4544756 Zwiterionic 2-alkyl imidazolines as emulsifying agents for oil based drilling fluids
10/01/1985US4544722 Water-soluble terpolymers of 2-acrylamido-2-methylpropane-sulfonic acid, sodium salt (AMPS), n-vinylpyrrolidone and acrylonitrile
10/01/1985US4544719 Fluid loss additives for clay based oil well drilling fluids
10/01/1985US4544033 Injection of an internal olefin sulfonate, cosurfactant and brine,then an aqueous polymer, into a subterranean reservoir
10/01/1985US4544032 Method and apparatus for production of perfect well treatment fluid solutions
09/1985
09/26/1985WO1985004213A1 Restoring permeability to a polymer plugged well
09/25/1985EP0155859A1 Process for the reversible consolidation of subterranean formations
09/25/1985EP0155710A2 Process for the preparation of derivatives of polyethoxypropanesulfonates
09/24/1985US4543193 Process for preventing the precipitation of elementary sulphur in riser pipes of probes for natural gas
09/24/1985US4542791 Method for plugging wellbores with polycarboxylic acid shear thickening composition
09/24/1985US4542790 Process for extracting extensively emulsion-free oil from a subterranean reservoir
09/24/1985US4542789 Mixture of urea and the sodium salt of an unsaturated carboxylic acid; enhanced oil recovery
09/17/1985US4541937 Surfactant flooding solutions with sulfonated creosote
09/17/1985US4541935 Acrylic copolymer thickener, nonionic surfactant
09/17/1985US4541489 Dissolving epoxy resin with n-methyl-2-pyrrolidone
09/17/1985US4541488 Pressurized acid treatment, flushing basic treatment and final flushing
09/17/1985US4541485 Completion and workover fluid
09/17/1985US4541483 Method for stimulation of oil and gas wells with phosphate ester surfactants
09/17/1985CA1193427A1 Oil recovery method using sulfonate surfactants derived from extracted aromatic feedstocks
09/11/1985EP0154080A2 Method of reducing fines migration in a porous structure
09/10/1985US4540762 Copolymers of sodium styrene sulfonate and sodium-N-(4-sulfophenyl)-maleimide
09/10/1985US4540527 Phosphites and phosphates of 3-sulfoxy-1,2-propylene glycols
09/10/1985US4540498 Block copolymers for enhanced oil recovery
09/10/1985US4540496 Intramolecular polymer complexes - viscosifiers for high ionic strength drilling fluids
09/10/1985US4540050 Injecting steam, non-condensable gas and alkyl oxide alkyl sulfona
09/10/1985US4540049 Enhanced oil recovery with alkoxy alkyl sulfonate compound
09/10/1985CA1193186A1 Method of increasing the yield of hydrocarbons from a subterranean formation
09/10/1985CA1193081A1 Methods of preparing and using non-damaging heavy aqueous well treating fluids
09/10/1985CA1193080A1 Method and composition for acidizing subterranean formations
09/03/1985US4539404 Pyrimidines containing sulfur and amino groups as corrosion inhibitors
09/03/1985US4539122 Corrosion inhibitor for heavy brines
08/1985
08/29/1985WO1985003697A1 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content
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