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)
07/1984
07/24/1984US4461856 Aqueous hydraulic cement slurry
07/24/1984US4461716 Use of fatty amines to improve the properties of foams and improved foaming containing said amines
07/24/1984US4461644 Light weight composition and a method of sealing a subterranean formation
07/24/1984US4461352 Acrylamide polymer, aldehyde and borate salts
07/24/1984US4461351 Injecting aqueous solution of urea, an aldehyde, and an acrylamide polymer
07/24/1984CA1171597A1 Water-soluble copolymer and its preparation
07/19/1984WO1984001580A3 Methods of using strong acids modified with acid solutions
07/18/1984EP0113438A2 Water soluble polymers, their preparation and their use
07/18/1984EP0113408A1 Acrolein and formaldehyde polycondensation products as hydrogen and iron sulphide scavengers in aqueous media
07/17/1984US4460751 Zirconium compounds, alpha-hydroxy acid and an amine
07/17/1984US4460627 Polymeric well treating method
07/17/1984US4460484 Diels-alder adduct of polyunsaturated ester vegetable oil
07/17/1984US4460483 Cationic polymers
07/17/1984US4460482 Composition and method for corrosion inhibition
07/17/1984US4460481 Alkylarylpolyoxyalkylenesulfonate
07/17/1984US4460477 Use of a carboxylic functional polyampholyte to inhibit the precipitation and deposit of scale in aqueous systems
07/17/1984US4460052 Prevention of lost circulation of drilling muds
07/17/1984US4460043 Method of enhancing oil recovery by use of exopolymer producing microorganisms
07/17/1984CA1171188A1 Water-dispersible hydrophobic thickening agent
07/17/1984CA1170822A1 Lost circulation material for sealing permeable formations
07/11/1984EP0113037A2 Method for producing water soluble resols and use therefor
07/10/1984US4459214 Viscous heavy brines
07/10/1984US4458760 Oil recovery process for stratified high salinity reservoirs
07/10/1984US4458759 Use of surfactants to improve oil recovery during steamflooding
07/10/1984US4458757 In situ shale-oil recovery process
07/10/1984US4458755 Process for preparing alkaline flooding solutions that avoid silica dissolution
07/10/1984US4458753 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with borohydride
07/10/1984CA1170445A1 Aqueous drilling and packer fluids
07/04/1984EP0112520A2 Metal chelates of water-soluble copolymers, water soluble polymers, their preparation and their use
07/03/1984US4458052 Alkyl sulfonates of polyvinyl alcohol as viscosifiers in saline solutions
07/03/1984US4458048 Alkyl sulfonates of polyvinyl alcohol as viscosifiers in saline solutions
07/03/1984US4457853 Oil well drilling clay conditioners and method of their preparation
07/03/1984US4457373 Carboxymethylated ethoxylate
07/03/1984US4457372 Injecting polysaccharide and water soluble guanidine compound
06/1984
06/27/1984EP0112102A1 High temperature stable crosslinked gel fracturing fluid
06/27/1984EP0111959A2 Hydrochloric acid compositions and their use
06/27/1984EP0111486A1 Aqua-aoluble copolymers, preparation and utilization thereof
06/26/1984US4456714 Microbial heteropolysaccharide
06/26/1984US4456537 Chemically cleaning drilling/completion/packer brines
06/26/1984US4456067 Process for inhibiting hydrate formation in producing gas wells
06/26/1984CA1169761A1 Optimum grading of chemical concentrations in a micellar flood
06/26/1984CA1169641A1 Thickened heavy brines
06/20/1984EP0111354A1 Alkylxylene sulphonate compounds, their preparation and use
06/19/1984US4455429 Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds
06/19/1984US4455255 Cyanohydrocarbylated alkoxylates and glycerides
06/19/1984US4455254 Cyanohydrocarbyl substituted sulfonates and their use in post primary oil recovery
06/19/1984US4455241 Wellbore fluid
06/19/1984US4455240 Cationic polymers
06/19/1984US4455175 Method for removing or retarding paraffin buildup on surfaces in contact with crude oil
06/19/1984US4455171 Reactivatable set-inhibited cementitious compositions
06/19/1984US4455169 Carboxymethyl hydroxyethyl cellulose
06/19/1984US4454917 Thermal acidization and recovery process for recovering viscous petroleum
06/19/1984US4454914 Method for conditioning geothermal brine to reduce scale formation
06/19/1984CA1169418A1 Method and apparatus for the preparation of drilling mud
06/13/1984EP0110717A2 Electrochromic display device
06/12/1984US4454260 Stable suspensions of water-soluble polymers and their manufacture
06/12/1984US4454252 Foam stabilizer
06/12/1984US4453598 Drilling mud displacement process
06/12/1984US4453596 Method of treating subterranean formations utilizing foamed viscous fluids
06/12/1984CA1169094A1 Polyhydroxy-polyalkylene-polyamine salts of maleic amide acids as corrosion inhibitors in water-in-oil emulsions
06/12/1984CA1168850A1 Suspension of hydrophilic polymer with an inorganic salt
06/12/1984CA1168849A1 Hydroxyethyl cellulose with a polar organic liquid as thickener
06/12/1984CA1168847A1 Surfactant waterflooding in a high brine environment
06/12/1984CA1168846A1 Non-aqueous slurries used as thickeners
06/07/1984WO1984002137A1 Method and apparatus for multiple recycle polymer dilution
06/05/1984US4452898 Process for measuring the volume change of a nitrogen-gas-stabilized cement
06/05/1984US4452722 Hydrophilic polymers
06/05/1984US4452721 Suspensions containing microfibrillated cellulose
06/05/1984US4452708 Oil recovery method using sulfonate surfactants derived from extracted aromatic feedstocks
06/05/1984US4452638 Cement, h2o, carbon black, coal dust and surfactant
06/05/1984US4452551 Process for stabilizing rock and coal formations by bonding these formations to themselves or other geological formations
06/05/1984US4452308 Method of using low molecular weight polyalkylene glycols as sacrificial agents for surfactant flooding
06/05/1984CA1168427A1 Method of producing a homogeneous viscous well servicing fluid within a borehole and well servicing fluid compositions
06/05/1984CA1168426A1 Lignosulfonate drilling fluid composition containing additives
06/05/1984CA1168425A1 Surfactant waterflooding with graded salinity drive for oil recovery
05/1984
05/30/1984EP0109820A1 Copolymers of alkyl poly(oxyalkylene) itaconates and thickening processes using them
05/29/1984US4451671 Cationic ethylene oxide/propylene oxide and ethylene oxide/butylene oxide polymers, a process for their preparation and their use
05/29/1984US4451631 Agent and method for deoiling sand and rock masses
05/29/1984US4451628 Oil wells drilling additives
05/29/1984US4451623 Water soluble phenolic-formaldehyde polymer which is a surfactant mobility control agent in oil recovery
05/29/1984US4451537 Asbestos composition having organo-silane coating
05/29/1984US4451389 Gelling carboxymethylhydroxyethyl celluose with alkaline earth metal hydroxide
05/29/1984US4450908 Enhanced oil recovery process using microorganisms
05/29/1984CA1168034A1 Shear-stabilized emulsion flooding process
05/24/1984WO1984001953A1 Viscosity increasing additive for non-aqueous fluid systems
05/22/1984US4450138 Processes for inhibiting corrosion using compounds containing sulfur and amino groups
05/22/1984US4450137 Processes for inhibiting corrosion using compounds containing sulfur and amino groups
05/22/1984US4450095 Smectite ion exchanged with methyl or benzyl trialkyl ammonium salt
05/22/1984US4450084 Oil recovery process employing a non-ionic glucan in combination with clay flocculant
05/22/1984US4450010 Well cementing process and gasified cements useful therein
05/22/1984US4450009 Method of preparing a light weight cement composition from sea water
05/22/1984CA1167759A1 Well treating process for chemically heating and modifying a subterranean reservoir
05/16/1984EP0108546A2 Oil based drilling fluids
05/15/1984US4448926 Viscosification of hydrocarbon fluids
05/15/1984US4448751 Measurement of gas flow into or out of slurry
05/15/1984US4448698 Selecting salinities in micellar flooding
05/15/1984US4448697 Secondary recovery process
05/15/1984US4448253 Moderated borohydride-induced reservoir dewatering
05/15/1984CA1167403A1 Microbial heteropolysaccharide
05/08/1984US4447342 Cationic polymer in carrier fluid