| 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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| 01/19/1988 | CA1231616A1 Biopolymer formulations and processes for preparing them |
| 01/19/1988 | CA1231521A1 Process for optimizing the properties of aqueous polymer solutions used in polymer flooding |
| 01/14/1988 | WO1988000278A1 Composition and method for slowly dissolving siliceous material |
| 01/12/1988 | US4719021 Shale-stabilizing drilling fluids and method for producing same |
| 01/12/1988 | US4718492 Coating with epoxy resin |
| 01/12/1988 | US4718491 Injecting a polysaccharide dispersion |
| 01/12/1988 | CA1231229A1 Gelled aqueous compositions |
| 01/07/1988 | EP0251638A2 Aqueous gel compositions derived from succinoglycan |
| 01/07/1988 | EP0251585A2 Treatment of iron-containing subterranean formations |
| 01/07/1988 | EP0251558A2 Clay stabilizing agent |
| 01/07/1988 | EP0251421A2 Sand consolidation method employing rubber |
| 01/07/1988 | EP0250943A2 Nonionic associative thickeners |
| 01/05/1988 | US4717594 Coating, resins, curing, multilayer |
| 01/05/1988 | US4717488 Spacer fluid |
| 01/05/1988 | US4716966 Closing formation pores during water flooding oil recovery by injecting a gellable mixture including a transition metal compound |
| 01/05/1988 | US4716964 Use of degradable ball sealers to seal casing perforations in well treatment fluid diversion |
| 01/05/1988 | CA1230962A1 Sulfonate dimer surfactant cyclic steam stimulation process for recovering hydrocarbons from a subterranean formation |
| 01/05/1988 | CA1230961A1 Acidizing with chemically heated weak acid |
| 01/05/1988 | CA1230960A1 Modified waterflood technique for enhanced hydrocarbon recovery from argillaceous subterranean reservoirs |
| 12/29/1987 | US4715986 Nonionic surfactants |
| 12/29/1987 | US4715971 Well drilling and completion composition |
| 12/29/1987 | US4715967 Composition and method for temporarily reducing permeability of subterranean formations |
| 12/29/1987 | US4715746 Method of strengthening geological formations |
| 12/22/1987 | US4714113 Alkaline water flooding with a precipitation inhibitor for enhanced oil recovery |
| 12/22/1987 | US4714112 Controlled addition of salt to steam to control ph |
| 12/22/1987 | CA1230700A1 Alkyl acrylamide-containing emulsion copolymers for thickening purposes |
| 12/22/1987 | CA1230475A1 Method of improving steam flood conformance with steam foaming agents without a non-condensable gas |
| 12/22/1987 | CA1230474A1 Method of controlling the mobility of flows through fissures, slits or pores |
| 12/16/1987 | EP0249320A2 Novel dithiocarbamate composition and method of use thereof |
| 12/16/1987 | CN87100689A Mobility control reagents with superior thermal stability |
| 12/15/1987 | US4713449 Glucuronic acid-free, glucose and mannose units in 2 to 1 ratio |
| 12/15/1987 | US4713203 Bauxite proppant |
| 12/15/1987 | US4713185 Sacrificial agents for enhanced oil recovery |
| 12/15/1987 | US4713184 Dispersed oil soluble corrosion inhibitor and water soluble phosphonate scale inhibitor composition |
| 12/15/1987 | US4713183 Using a water soluble imidazoline to prevent water wetting of particle surface |
| 12/15/1987 | US4712617 Carboxamide polymer crosslinked with a hypohalite |
| 12/15/1987 | CA1230220A1 Method of improving conformance in steam floods with steam foaming agents |
| 12/09/1987 | EP0248495A2 Potassic drilling mud |
| 12/09/1987 | EP0248457A1 Process for strengthening and sealing geological formations |
| 12/08/1987 | US4711731 Acrylic acid and-or methacrylic acid polymers neutralized with lithium and-or alkanolamine |
| 12/08/1987 | CA1229972A1 Fluid compositions |
| 12/02/1987 | EP0247801A2 Well bore fluid |
| 12/01/1987 | USH385 Shale coagulating low solids drilling fluid |
| 12/01/1987 | US4710586 Fluid loss additives for oil base muds and low fluid loss compositions thereof |
| 12/01/1987 | US4709767 Production process for manufacturing low molecular weight water soluble acrylic polymers as drilling fluid additives |
| 12/01/1987 | US4709759 Tetrapolymers; acrylic acid salts, nalkyl acrylamides pressure injection |
| 11/26/1987 | DE3714856A1 Inhibitors of corrosion by CO2 and H2S in water-in-oil emulsions |
| 11/25/1987 | EP0246234A1 Method for the consolidation of geological formations. |
| 11/24/1987 | US4708974 Enhanced hydrocarbon recovery by permeability modification with phenolic gels |
| 11/24/1987 | US4708753 Water-in-oil emulsions |
| 11/24/1987 | US4708207 Aminocarboxylic acid, organosilicon compound |
| 11/24/1987 | US4708206 Removing particulate matter from a non-dissoluble sand control pack |
| 11/24/1987 | US4708205 Brine tolerant polymer for oil recovery applications |
| 11/24/1987 | CA1229479A1 Restoring permeability to a polymer plugged well |
| 11/24/1987 | CA1229477A1 Polyalkoxy sulphonate, co.sub.2 and brine drive process for oil recovery |
| 11/19/1987 | EP0245930A2 Reducing fluid loss in downhole cementing |
| 11/17/1987 | US4707281 Drilling fluid additive containing high pyruvate xanthan |
| 11/17/1987 | US4706755 Gelation, sulfonated polymer, monoallylamine polymer |
| 11/17/1987 | US4706754 Oil recovery process using a delayed polymer gel |
| 11/17/1987 | US4706752 Permeability recudtion, crude oil-insoluble nonhydrocarbon gas, surfactant |
| 11/17/1987 | US4706749 Method for improved oil recovery |
| 11/11/1987 | EP0245157A1 Emulsifying composition, and reverse emulsion containing the same |
| 11/11/1987 | EP0244425A1 Multiple-stage coal seam fracing method |
| 11/10/1987 | US4705665 Method for inhibiting oxidation of ferrous metals with alkyl glycosides and composition for cleaning ferrous metals |
| 11/10/1987 | US4705110 Salts of carboxymethylated oxyethylates |
| 11/10/1987 | CA1228981A1 Organic titanium compositions for use in oil and gas wells |
| 11/03/1987 | US4704229 Surface-active compounds of the sulfobetaines family, their manufacture and use, particularly for enhanced oil recovery |
| 11/03/1987 | US4704214 Drilling fluid |
| 11/03/1987 | US4704213 Encapsulated oil absorbent polymers as lost circulation additives for oil based drilling fluids |
| 11/03/1987 | US4703803 Composition and method for slowly dissolving siliceous material |
| 11/03/1987 | US4703801 Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations |
| 11/03/1987 | US4703797 Sweep improvement in enhanced oil recovery |
| 11/03/1987 | CA1228725A1 Methods of minimizing fines migration in subterranean formations |
| 11/03/1987 | CA1228724A1 Methods for stabilizing swelling clays or migrating fines in subterranean formations |
| 11/03/1987 | CA1228723A1 Hydrolytically stable polymers for use in oil field cementing methods and compositions |
| 11/03/1987 | CA1228722A1 Method of minimizing fines migration in subterranean formations |
| 11/03/1987 | CA1228721A1 Fluid spacer composition for use in well cementing |
| 10/28/1987 | EP0243127A2 Amorphous high molecular weight copolymers of ethylene and alpha-olefins |
| 10/28/1987 | EP0243067A2 Spacer fluid |
| 10/28/1987 | CN87102291A Solution composition stably of aqueous polymer |
| 10/28/1987 | CN87100866A Method for obtaining oil from deep wells by using chemials |
| 10/27/1987 | US4702849 Adding anionic aminophosphate; surface absorption reduces wetting |
| 10/27/1987 | US4702848 Control of crosslinking reaction rate using organozirconate chelate crosslinking agent and aldehyde retarding agent |
| 10/27/1987 | US4702319 Enhanced oil recovery with hydrophobically associating polymers containing sulfonate functionality |
| 10/27/1987 | US4702317 Steam foam floods with a caustic agent |
| 10/27/1987 | CA1228472A1 Drilling mud dispersants |
| 10/20/1987 | US4701270 Novel compositions suitable for treating deep wells |
| 10/20/1987 | US4701247 Electrochemical methods for breaking high viscosity fluids |
| 10/20/1987 | US4700780 Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations |
| 10/20/1987 | CA1228373A1 Cement slurries for deep holes, with a copolymer content for reducing the water loss |
| 10/20/1987 | CA1228328A1 Protecting metal substrates using sulphides of groups vb, v1b, v11b, and rare earths |
| 10/20/1987 | CA1228227A1 Gel for retarding water flow |
| 10/20/1987 | CA1228226A1 Sintered low density gas and oil well proppants from a low cost unblended clay material of selected compositions |
| 10/14/1987 | EP0241340A1 Stabilized aqueous compositions of water soluble polymers |
| 10/13/1987 | US4699722 Mixture of acrylamide homopolymer flow control agent and metal halide |
| 10/13/1987 | US4699225 Or potassium, sodium, ammonium, organic amine or quaternary ammonium salts; muds for drilling wells |
| 10/13/1987 | US4699214 Salt-tolerant alkyl aryl sulfonate compositions for use in enhanced oil recovery processes |
| 10/08/1987 | WO1987005939A1 Family of xanthan-based polysaccharide polymers including non-acetylated and/or non-pyruvylated gum and acetylated or non-acetylated polytetramer gum |
| 10/08/1987 | WO1987005925A1 Process for strengthening and sealing geological formations |
| 10/07/1987 | EP0239770A1 Adducts of propargyl alcohol and their use as corrosion inhibitors in acidizing systems |