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)
11/1986
11/19/1986	CN86102133A Process for dissolution of sulphur and dissolvent therefor
11/19/1986	CN86102048A Production of a polyacrylamide solution used in an oil recovery process
11/18/1986	USRE32289 Surfactants for oil recovery
11/18/1986	US4623630 Use of uncalcined/partially calcined ingredients in the manufacture of sintered pellets useful for gas and oil well proppants
11/18/1986	US4623398 Organo-clays
11/18/1986	US4623283 Method for controlling water influx into underground cavities
11/12/1986	EP0201355A2 Fluid loss control and compositions for use therein
11/11/1986	US4622404 Corrosion resistance
11/11/1986	US4622373 Fluid loss control additives from AMPS polymers
11/11/1986	US4622370 Acrylic acid-itaconic acid copolymer and salt, thereof
11/11/1986	US4622155 Method for fracturing subterranean formations
11/11/1986	US4622153 Liquid polymer containing compositions for thickening aqueous systems
11/11/1986	US4621694 Use of a liquid membrane for scale removal
11/11/1986	US4621692 Enhanced oil recovery
11/06/1986	WO1986006417A1 Method for inhibiting oxidation or acid attack of ferrous metals utilizing glycosides and cleaning compositions for ferrous metals
11/06/1986	WO1986006404A1 Stability and compatibility of glycosides in acid systems
11/05/1986	EP0200466A2 Method for releasing stuck drill string
11/05/1986	EP0200062A2 High temperature profile modification agents and methods for using same
11/04/1986	US4620596 Hydrate borate bridging agents
11/04/1986	US4620595 Recovering oil by injecting ammoniated and nitrited seawater
11/04/1986	CA1213685A1 Pumpable concentrated suspensions of hydrosoluble polymers
11/04/1986	CA1213606A1 Process for the formation of novel acrylamide acrylate copolymers
11/04/1986	CA1213516A1 Process for fracturing subterranean formations
11/04/1986	CA1213515A1 Method of reducing water production
10/1986
10/29/1986	CN85103553A Micellar systems containing n-acyl n-alkyl-alpha-aminocarboxylic compounds, particularly useful in enhanced hydrocarbon recovery
10/28/1986	US4619776 Crosslinked fracturing fluids
10/28/1986	US4619773 High temperature stable aqueous brine fluids viscosified by water-soluble copolymers of acrylamidomethylpropanesulfonic acid salts
10/28/1986	US4619772 Method and material for increasing viscosity and controlling of oil well drilling and work-over fluids
10/28/1986	CA1213136A1 Corrosion inhibition of aqueous brines
10/22/1986	EP0198225A2 Means against the precipitation and sedimentation of asphaltenes and the like
10/21/1986	US4618655 Process for preparation of polymers containing dicarboxylic acid cyclic imide units in a solid/liquid slurry
10/21/1986	US4618435 Thixotropic cements
10/21/1986	US4618433 Drilling fluids and thinners therefor
10/21/1986	US4617996 Hydrocarbon additive to solvbilize displacement fluid; enhaced oil recovery
10/21/1986	US4617995 Electrolyte for ion exchanging with rocks
10/21/1986	US4617991 Polymer flow control apparatus
10/15/1986	EP0197684A2 Reduction of water permeability of subterranean formation
10/15/1986	EP0197635A2 Acrylic emulsion copolymers for thickening aqueous systems and copolymerizable surfactant monomers for use therein
10/14/1986	US4617132 Antionic polymer as flow control agent
10/14/1986	CA1212533A1 Propping agent based on zirconia and silica for deep geological fractures
10/09/1986	WO1986005839A1 Water soluble perforation pack
10/08/1986	EP0196689A1 Cement slurry composition for cementing wells traversing salt formations, and corresponding cementing method
10/08/1986	EP0196683A1 Sulfonated poly(vinyl aromatics) as fluid loss control additives for salt cement slurries
10/07/1986	US4616085 Thioethers of imidazolines
10/07/1986	US4616074 Acrylic-methylene succinic ester emulsion copolymers for thickening aqueous systems
10/07/1986	US4615813 Drilling fluids
10/07/1986	US4615740 Hydroxyethyl cellulose, aluminum oxyalkyl phosphates, oil base liquid, surfactant
10/07/1986	US4615393 Blend of metal neutralized sulfonated polymer and amine containing polymer
10/01/1986	EP0196199A2 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature
10/01/1986	CN86100473A Permeability contrast correction employing propionate-sequestered chromium prepared by nitrite/dichromate redox
09/1986
09/30/1986	US4614754 Using alkoxylated toluenediamine polyol
09/30/1986	US4614623 Sulfonation of crude oils with gaseous SO3 to produce petroleum sulfonates
09/30/1986	US4614601 Completion and workover fluids
09/30/1986	US4614600 Amide condensation product from polyamine and fatty polycarboxylic acid or anhydride
09/30/1986	US4614599 Wax reaction preventive coating
09/30/1986	US4614236 Self-breaking foamed oil-in-water emulsion for stimulation of wells blocked by paraffinic deposits
09/30/1986	US4614235 Use of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipe
09/30/1986	CA1212127A1 Cold set cement composition and method
09/24/1986	EP0195531A2 Organic titanium compositions useful as cross-linkers
09/23/1986	US4613631 Crosslinked polymers for enhanced oil recovery
09/23/1986	US4612991 Oil recovery process
09/23/1986	CA1211881A1 Composition and method for stimulating a subterranean formation
09/23/1986	CA1211880A1 Method of improving dispersibility of water soluble anionic polymers
09/23/1986	CA1211623A1 Drilling fluids based on sulfonated thermoplastic polymers having improved low temperature rheological properties
09/17/1986	EP0194596A2 Process for preparing a stabilized chromium (III) propionate solution and formation treatment with a so prepared solution
09/17/1986	EP0194254A1 High-density brine fluid and use in servicing wellbores.
09/17/1986	EP0112350B1 Method for manufacturing a backing material for drill holes
09/16/1986	US4611664 Technique for placing a liquid chemical in a well or bore hole
09/16/1986	US4611659 Oxidized alkali lignins and their use in enhanced oil recovery
09/16/1986	CA1211368A1 Method of enhancing the effectiveness of biocides
09/10/1986	CN86100694A Polyvalence chelate chromium salt of propionic acid with no sulphate for improving permeability and contrast
09/09/1986	US4610795 Peroxygen breaker systems for well completion fluids
09/09/1986	US4610306 Non-retarding fluid loss additives for well cementing compositions
09/09/1986	US4610305 Acrylic co-and terpolymers, acrylamide, sodium acrylate, hydrolyzed acrylamide
09/09/1986	US4610302 Oil recovery processes
09/09/1986	CA1211120A1 Alkyl sulfonates of polyvinyl alcohol as viscosifiers in saline solutions
09/09/1986	CA1211042A1 Fracturing of subterranean formations
09/09/1986	CA1210929A1 Composition and method for servicing wellbores
09/09/1986	CA1210928A1 Process for removing contaminates from a well fluid and well system
09/03/1986	EP0193369A2 Polymer article and its use for controlled introduction of reagent into a fluid
09/02/1986	US4609708 Cyclization of quaternary diallylamino groups
09/02/1986	US4609479 Hydraulic fracturing of subterranean formations
09/02/1986	US4609478 Anionic surfactants
09/02/1986	US4609477 Liquid foaming additives used in the stimulation of oil and gas wells
09/02/1986	US4609476 Drilling, well completion
09/02/1986	US4609475 Method of improving the permeability of a subterranean formation by removal of polymeric materials therefrom
09/02/1986	US4609474 Enhanced oil rfecovery
09/02/1986	US4609044 Ion exchanging, salt formation, petroleum sulfonates
09/02/1986	US4609043 Supercritical, flow control, water insoluble polymer, entrainment
09/02/1986	CA1210686A1 Treating wells with non-buoyant ball sealers
08/1986
08/27/1986	EP0192533A2 Alcalisilicate compositions and their use
08/27/1986	EP0192447A2 Oil field cementing methods and compositions
08/27/1986	EP0192130A2 Corrosion inhibitor composition
08/27/1986	EP0191980A2 Polymers for use as filtration control aids in drilling muds
08/26/1986	US4608191 Beta-hydroxy thio ethers and quaternary ammonium salts
08/26/1986	US4608182 Vinyl sulfonate amide copolymer and terpolymer combinations for control of filtration in water-based drilling fluids at high temperature
08/26/1986	US4607700 Alpha-olefin sulfonate dimer surfactant cyclic steam stimulation process for recovering hydrocarbons from a subterranean formation
08/26/1986	US4607697 High strength
08/26/1986	US4607696 Using organotin compound
08/26/1986	US4607695 High sweep efficiency steam drive oil recovery method

1 ... 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 ... 318