| 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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| 09/06/1995 | EP0669844A1 Viscoelastic surfactant based foam fluids |
| 09/05/1995 | US5447986 Acceleration of gelation of water soluble polymers |
| 09/05/1995 | US5447199 Controlled degradation of polymer based aqueous gels |
| 09/05/1995 | US5447198 Low temperature well cementing compositions and methods |
| 09/05/1995 | US5447197 Storable liquid cementitious slurries for cementing oil and gas wells |
| 08/30/1995 | EP0668961A1 A method for the inhibition of scale deposition and composition therefor |
| 08/30/1995 | EP0668958A1 Method for controlling clathrate hydrates in fluid systems |
| 08/30/1995 | EP0668898A1 Method of sealing off water-influx points in rock formations. |
| 08/29/1995 | US5445223 Adding base and organic polyol and encapsulated boron containing compound to hydrated galactomannan gum fluid, pumping into well bore |
| 08/29/1995 | US5445221 Controlling ferric ions while acidizing subterranean formations |
| 08/29/1995 | US5445179 Process for recovering and causing highly viscous petroleum products to flow |
| 08/29/1995 | CA1336854C Water soluble polymers for detergent compositions |
| 08/24/1995 | WO1995022585A1 Application of n,n-dialkylamides to control the formation of emulsions or sludge during drilling or workover of producing oil wells |
| 08/23/1995 | EP0668432A2 Process for treating oil-bearing formation |
| 08/23/1995 | EP0668339A1 Drilling fluid additive for watersensitive shales and clays, and method of drilling using the same |
| 08/23/1995 | EP0667890A1 Wellbore fluid |
| 08/22/1995 | US5443761 Elastic solids having reversible strain-induced fluidity |
| 08/22/1995 | US5443123 Method of particulate consolidation |
| 08/17/1995 | WO1995021900A1 Well servicing fluids |
| 08/17/1995 | DE4404219A1 Aq. clay suspensions contg. inorganic liquefier |
| 08/16/1995 | EP0666893A1 Wellbore fluid |
| 08/15/1995 | US5441929 Treating wells; corrosion inhibitors |
| 08/15/1995 | US5441928 Aqueous gellable composition containing an anti-syneresis agent |
| 08/15/1995 | US5441927 Fluid drill-hole treatment agents based on polycarboxylic acid diesters |
| 08/15/1995 | US5441109 Enzyme breakers for breaking fracturing fluids and methods of making and use thereof |
| 08/10/1995 | WO1995021226A1 Drilling fluids comprising mostly linear olefins |
| 08/10/1995 | WO1995021225A1 Skeletally isomerized linear olefins |
| 08/09/1995 | EP0517892B1 Method for reducing the permeability disparity between two zones of a geological formation and use thereof for recovering hydrocarbons |
| 08/09/1995 | EP0408700B1 Method for sweetening hydrocarbons |
| 08/08/1995 | US5439059 Aqueous gel fluids and methods of treating subterranean formations |
| 08/08/1995 | US5439058 Method of cleaning an oil or gas well |
| 08/08/1995 | US5439057 Mixing aqueous fluid with polysaccharide viscosifier and metal ion or borate crosslinking agent to form crosslinked gel, shearing into particles, slurrying, introducing into wellbore, producing filter cake to reduce fluid loss |
| 08/08/1995 | US5439056 Using cementitious composition comprising drilling fluid, coal slag and lime |
| 08/08/1995 | US5439055 Control of particulate flowback in subterranean wells |
| 08/03/1995 | WO1995020617A1 Polyaspartic acid having more than 50 % beta form and less than 50 % alpha form |
| 08/03/1995 | CA2181889A1 Polyaspartic acid having more than 50 % beta form and less than 50 % alpha form |
| 08/02/1995 | EP0664850A1 Method for drilling and cementing a well |
| 08/02/1995 | EP0664849A1 Method for drilling and cementing a well. |
| 08/02/1995 | EP0664848A1 Method for drilling and cementing a well. |
| 08/01/1995 | US5438039 Using a mixture of polyaromatics, saturated hydrocarbons, and alkylbenzenes to dissolve; enhanced oil recovery |
| 08/01/1995 | US5437331 Method for fracturing subterranean formations using controlled release breakers and compositions useful therein |
| 08/01/1995 | US5437329 Method and apparatus for activation of furnace slag base cement |
| 08/01/1995 | CA2086599C Process for enhanced delayed in situ gelation of chromium polyacrylamide gels |
| 07/27/1995 | WO1995020096A1 A method and apparatus for ramping of stimulation chemical concentrations for treatement of subterranean formations |
| 07/27/1995 | WO1995020095A1 Method and apparatus for activation of furnace slag base cement |
| 07/27/1995 | WO1995020094A1 Method and combination of materials for releasing a stuck pipe |
| 07/27/1995 | WO1995019942A1 Storable liquid cementitious slurries for cementing oil and gas wells |
| 07/27/1995 | WO1995018910A3 Ph dependent process for retarding the gelation rate of a polymer gel utilized to reduce permeability in or near a subterranean hydrocarbon-bearing formation |
| 07/27/1995 | CA2181911A1 Method and apparatus for activation of furnace slag base cement |
| 07/25/1995 | US5436396 Stabilizing compositions and methods for stabilizing subterranean formations |
| 07/25/1995 | US5436227 Polyetherpolycyclicpolyol condensation polymer of glycerol and dihydroxy alcohol |
| 07/25/1995 | US5435389 Sand control agent and process |
| 07/20/1995 | WO1995019408A1 Hydrate inhibition |
| 07/19/1995 | EP0663510A2 Sulfate scale dissolution |
| 07/19/1995 | EP0571612B1 Drilling mud composition and process for reducing the filtrate of metal hydroxide mixtures-containing drilling mud compositions |
| 07/19/1995 | CN1105286A Method of improving the contaminant resistance of a smectite clay by rewetting and impregnating the clay with a water-soluble poly mer, and redrying the polymer-impregnated clay |
| 07/18/1995 | US5434323 Method for reducing the agglomeration tendency of hydrates in production effluents |
| 07/18/1995 | US5433272 Methods for treating a permeable matrix |
| 07/18/1995 | CA2019516C Method of oil well corrosion inhibition via emulsions and emulsions therefor |
| 07/13/1995 | WO1995018910A2 pH DEPENDENT PROCESS FOR RETARDING THE GELATION RATE OF A POLYMER GEL UTILIZED TO REDUCE PERMEABILITY IN OR NEAR A SUBTERRANEAN HYDROCARBON-BEARING FORMATION |
| 07/13/1995 | WO1995018909A1 Hydrocarbon recovery process utilizing a gel prepared from a polymer and a preformed crosslinking agent |
| 07/13/1995 | WO1995018908A1 Process for reducing premeability in a high-temperature subterranean hydrocaron-bearing formation utilizing a decarboxylated crosslinking agent |
| 07/12/1995 | EP0662563A1 Method using gellan for reducing the filtrate of aqueous drilling fluids |
| 07/12/1995 | EP0662189A1 Hydraulic fracturing technique employing in situ precipitation |
| 07/12/1995 | EP0662188A1 Method for cement placement in horizontal wells |
| 07/12/1995 | EP0662113A1 Pretreated clays, their preparation and use in formulating drilling muds not aggressive to layer clays |
| 07/12/1995 | EP0320288B2 Cementing oil and gas wells using converted drilling fluid |
| 07/11/1995 | US5432292 Method for controlling clathrate hydrates in fluid systems |
| 07/11/1995 | US5432153 Gelling compositions useful for oil field applications |
| 07/11/1995 | US5432152 Invert drilling fluid |
| 07/11/1995 | US5431237 Well fluid and method of making |
| 07/11/1995 | US5431227 Method for real time process control of well stimulation |
| 07/11/1995 | US5431226 Process for reducing permeability in a high-temperature subterranean hydrocarbon-bearing formation utilizing a decarboxylated crosslinking agent |
| 07/05/1995 | EP0661329A2 Liquid polysiloxanes |
| 07/04/1995 | US5429999 Organoclay compositions containing two or more cations and one or more organic anions, their preparation and use in non-aqueous systems |
| 07/04/1995 | CA1336128C Viscosity control additives for foaming mixtures |
| 06/29/1995 | WO1995017581A1 A method for real time process control of well stimulation |
| 06/29/1995 | WO1995017579A1 A method for inhibiting the plugging of conduits by gas hydrates |
| 06/29/1995 | WO1995017367A1 2-methylbutoxy ethoxyethanol |
| 06/29/1995 | WO1995017244A1 Solvent soaps and methods employing same |
| 06/29/1995 | CA2179720A1 Solvent soaps and methods employing same |
| 06/29/1995 | CA2179024A1 A method for real time process control of well stimulation |
| 06/28/1995 | EP0659702A1 Method of cementing a subterranean zone |
| 06/28/1995 | EP0659449A1 Thickened water |
| 06/28/1995 | EP0659207A1 Detergent mixtures |
| 06/27/1995 | US5427999 Amine adducts as corrosion inhibitors |
| 06/27/1995 | US5427990 Method of Improving absorption of salt water by water-swellable clay by redrying |
| 06/27/1995 | US5427699 Low viscosity acid-in-oil emulsions and methods |
| 06/27/1995 | CA2099249C Method for controlling oil reservoir permeability using biomass oil |
| 06/27/1995 | CA1336039C High temperature corrosion inhibitor |
| 06/22/1995 | WO1995016758A1 Drilling fluid |
| 06/21/1995 | EP0658620A1 Structured surfactants |
| 06/21/1995 | EP0658616A1 Process for recovering and moving highly viscous petroleum products |
| 06/21/1995 | EP0658612A1 Polysaccharide containing fluids having enhanced thermal stability |
| 06/21/1995 | EP0658596A2 Composition based on biopolymers with rapid hydration |
| 06/20/1995 | US5426258 Process for reducing the agglomeration tendency of hydrates in the production effluent |
| 06/20/1995 | US5426079 Method of improving water-swellable clay properties by re-drying, compositions and articles |
| 06/20/1995 | US5425994 Petroleum well completion |
| 06/20/1995 | US5425422 Injecting deasphalted oil into well, soaking to solubilize deposits, resuming oil production |
| 06/20/1995 | US5425421 Method for sealing unwanted fractures in fluid-producing earth formations |