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)
10/1984
10/09/1984US4475590 Method for increasing oil recovery
10/09/1984CA1175976A1 Stable suspensions of hydrosoluble polymers, and their preparation
10/09/1984CA1175814A1 Injection aided crude oil extraction
10/03/1984EP0120592A2 Method of stabilising fines in structures such as subterranean formations
10/03/1984EP0120550A2 Foaming agent
10/02/1984US4474903 Methyl acrylate polymer with aldehyde crosslinking agent
10/02/1984US4474706 Process for the preparation of organophilic clays
10/02/1984US4474705 Reaction of bentonite with quaternary ammonium compound
10/02/1984US4474667 Fluid loss control system
10/02/1984US4474666 Balanced-activity improved inverse emulsion to inhibit brittle lutite hydration in oil fields
10/02/1984US4474665 Use of ground, sized cocoa bean shells as a lost circulation material in drilling mud
10/02/1984US4474622 Composition and process for recovering and upgrading petroleum products
10/02/1984US4474408 Ion exchanging
10/02/1984US4474240 Drilling fluid displacement process
10/02/1984CA1175447A1 Nitrogen-gas-stabilized cement and a process for making it and an apparatus for testing it
09/1984
09/26/1984EP0119745A2 High density fluid for use in wells
09/26/1984EP0119704A2 Method of enhancing the effectiveness of biocides
09/25/1984US4473480 High temperature stable fluid loss control system
09/25/1984US4473479 Hydroxy-containing compound and crosslinked hydroyxalkyl cellulose reaction product
09/25/1984US4473408 Cleaning pipeline interior with gelled pig
09/25/1984US4473119 Process for selectively plugging subterranean formations with a melamine resin
09/25/1984US4473118 Enhanced oil recovery using oxidized crude oil
09/25/1984US4473116 Hydrocarbon-surfactant-cosurfactant system
09/25/1984US4473115 With stabilized solution of chlorine dioxide
09/25/1984CA1174965A1 Reservoir-tailored co.sub.2-aided oil recovery process
09/25/1984CA1174842A1 Methods and hydrocarbon base treating fluids for stabilizing water sensitive clay containing formations
09/25/1984CA1174841A1 Gellation of pure methyl alcohol
09/18/1984US4472291 High viscosity microemulsions
09/12/1984EP0118379A2 High viscosity microemulsions
09/12/1984EP0118332A1 Filtrate control additive for cement compositions, process of preparation, cement compositions containing this additive and corresponding well-cementing process
09/12/1984EP0118089A2 Process for the mobility control of fracture, fissure or porous making flows
09/12/1984EP0117970A2 Process for recovering oil from rock formations
09/11/1984US4471097 Sulfonate derivative
09/11/1984US4470918 Aqueous solution of polyethoxylated fatty amino carboxylate zwitterion; blow-out preventers in oil drilling rigs
09/11/1984US4470915 Method and compositions for fracturing subterranean formations
09/11/1984US4470463 Hardening, slurrying, hydraulic cements, sodium bentonite
09/11/1984US4470462 Foam and particulate material with steam for permeability alteration in subsurface formations
09/11/1984US4470461 With petroleum sulfonates
09/11/1984CA1174163A1 Recovery of oil from tilted reservoirs
09/04/1984US4469639 Ion exchanging
09/04/1984US4469620 Thixotropic aqueous solution
09/04/1984US4469607 Displacement of underground oil to production well
09/04/1984US4469604 Surfactant systems
09/04/1984US4469518 Reaction product of high molecular weight sulfonated polymer and polyamine
09/04/1984US4469177 Recovery of viscous oil from asphaltic oil-containing formations
09/04/1984CA1173771A1 Fluid displacement with heteropolysaccharide solutions, and the microbial production of heteropolysaccharides
09/04/1984CA1173769A1 Treatment of polysaccharide solutions
08/1984
08/30/1984WO1984003287A1 Apparatus and method for preparing polymer solutions
08/29/1984EP0116929A1 Tributylphenol-ethersulphonates, their use and process for the preparation of ether sulphonates
08/29/1984EP0116915A2 Process for stimulating petroleum production wells
08/29/1984EP0116779A1 A process for the formation of novel acrylamide acrylate copolymers
08/29/1984EP0116775A1 Treating wells with non-buoyant ball sealers
08/29/1984EP0116671A1 Cement slurries for deep-drilling containing copolymers to reduce loss of water
08/28/1984US4468342 Oil recovery, anionic surfactants
08/28/1984US4468339 Aqueous compositions containing overbased materials
08/28/1984US4468335 Branched alkylpolyethoxypropane sulfonates and their use in enhanced oil recovery
08/28/1984US4468334 Aqueous drilling fluid and mobility control solution for use on recovery
08/28/1984US4467869 Enhanced oil recovery
08/28/1984US4467868 Enhanced oil recovery by a miscibility enhancing process
08/22/1984EP0116369A2 Proppant for fractured wells
08/21/1984US4466893 Method of preparing and using and composition for acidizing subterranean formations
08/21/1984US4466892 Injection of blend of lignosulfonate and group 1a compounds or ammonia
08/21/1984US4466891 Glyceryl ether sulfonates for use in oil recovery fluids and processes
08/21/1984US4466890 Liquid gel concentrates and methods of using the same
08/21/1984US4466889 Polyvalent metal ion chelating agents for xanthan solutions
08/21/1984US4466837 Liquid water loss reducing additives for cement slurries
08/21/1984US4466831 Rapidly dissolvable silicates and methods of using the same
08/21/1984US4466486 Water or brine and an ether-containing polymer
08/21/1984CA1173067A1 Cartridge containing fast acting inorganic adhesive systems, grouting compositions and method of use
08/21/1984CA1172840A1 Drilling fluids
08/21/1984CA1172837A1 Process for the production of sintered bauxite spheres
08/15/1984EP0115836A2 Polymeres useful in the recovery and processing of natural resources
08/15/1984EP0115726A1 Polymer systems, and their use, in particular in fracturing
08/15/1984EP0115703A1 A micellar process for the formation of acrylamide-alkyl acrylamide copolymers
08/14/1984US4465602 Oil recovery method utilizing an alkylarylpolyalkoxyalkylene sulfonate
08/14/1984US4465601 Mixtures of calcium bromide, methanol, and water
08/14/1984US4465598 Oxidation, demetallization
08/14/1984CA1172589A1 Enzymatic process for treating xanthan gums in order to increase the filterability of their aqueous solutions
08/14/1984CA1172558A1 Improved process for stabilizing geological deposits
08/08/1984EP0115463A2 Cement slurry compositions for cementing oil wells, allowing the control of free water, and the corresponding cementing process
08/08/1984EP0115213A2 A process for forming acrylamide-alkyl acrylamide copolymers
08/07/1984US4464509 Hydrolyzed polymers; secondary, tertiary oil recovery; polyacrylamide
08/07/1984US4464410 Food additives
08/07/1984US4464287 Homogeneous, oil-in-water emulsions
08/07/1984US4464274 For mineral oil based drilling fluids
08/07/1984US4464270 Method and compositions for fracturing subterranean formations
08/07/1984US4464269 Additive composition for release of stuck drill pipe
08/07/1984US4464268 Injection aqueous colution of hydrogen peroxide, an acid and a surfactant
08/07/1984US4463810 Process for fracturing subterranean formations
08/07/1984US4463809 With acidity ion exchange resin
08/07/1984US4463808 Clay, hydrolyzed polyacrylamide
08/07/1984US4463806 Method for surfactant waterflooding in a high brine environment
08/07/1984CA1172160A1 Steam foam drive process
08/07/1984CA1172159A1 Heavy oil recovery process
07/1984
07/31/1984US4462917 Method and compositions for fracturing subterranean formations
07/31/1984US4462837 Mixture of hydroxyalkyl cellulose ethers, cement and a dispersant
07/31/1984US4462836 Cement composition and method of cement casing in a well
07/31/1984CA1171778A1 Method for recovering largely emulsion-free oil from underground deposits
07/24/1984US4461884 Intramolecular polymeric complexes-viscosifiers for acid, base and salt (aqueous) solutions
07/24/1984US4461866 Preparation of water-in-oil emulsions
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