| 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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| 04/13/1993 | US5202035 Liquid aluminum phosphate salt gelling agent |
| 04/13/1993 | US5201612 Injecting aqueous polkymerizable solution and Lewis acid catalyst |
| 04/13/1993 | US5201370 Enzyme breaker for galactomannan based fracturing fluid |
| 04/13/1993 | CA1315969C Use of manganese oxide in drilling mud and oil well cement slurries |
| 04/07/1993 | EP0535301A1 Method for the control of biofouling |
| 04/07/1993 | EP0415993B1 Xanthan concentrate, process of preparing thereof and use thereof by increased recovery of oil from subterranean formations |
| 04/07/1993 | CN1070671A Method for reducing petention of displacing agent and application to enhanced hydrocarbon recovery |
| 04/07/1993 | CN1070634A Ester-free ethers |
| 04/06/1993 | US5200484 Vinyl acetate and isobutyl vinyl ether |
| 04/06/1993 | US5200117 Composition of polyaminopolycarboxylic acid or salt chelating agent, synergist-catalyst of monocarboxy acid anion |
| 04/06/1993 | US5200105 Scale control in aqueous systems |
| 04/06/1993 | US5200096 Directly addition of additives comprise a bismuth compound, a quternary compound and a surfactant to an aqueous acid solution used for acidification of subterranean formations; free of toxic antimony and acetylenic compounds |
| 04/06/1993 | US5199823 Increased storage stability; adding hydroxysodalite or zeolite to mealmine(or urea)-formaldehyde resin |
| 04/06/1993 | US5199492 Sand consolidation methods |
| 04/06/1993 | US5199491 In situ polymerization of polyurethane from blocked diisocyanate and diol |
| 04/06/1993 | US5199490 Formation treating |
| 04/06/1993 | US5199489 Method of cementing well casing to avoid gas channelling from shallow gas-bearing formations |
| 04/06/1993 | CA1315914C Manufacture of high molecular weight poly(vinylamines) |
| 04/06/1993 | CA1315909C Delaying the gelation of water soluble polymers |
| 04/06/1993 | CA1315722C Aqueous gel compositions derived from succinoglycan |
| 04/06/1993 | CA1315537C Multicomponent organic liquid and use thereof in treating wells and subterranean formations |
| 04/06/1993 | CA1315536C Grouting composition and method for grouting conduits in well bores |
| 04/01/1993 | WO1993006338A1 Novel compositions for controlling iron during the acid treatment of oil wells, and for industrial cleaning |
| 04/01/1993 | WO1993006047A1 Method for regenerating scale solvent |
| 04/01/1993 | CA2119754A1 Novel compositions for controlling iron during the acid treatment of oil wells, and for industrial cleaning |
| 03/31/1993 | EP0534639A1 Method of cementing a well |
| 03/31/1993 | EP0534621A1 Method of inhibiting corrosion in acidizing wells |
| 03/30/1993 | US5198532 Polyethers containing cyclic ether groups along backbone, drilling fluids |
| 03/30/1993 | US5198416 Polyglycerols |
| 03/30/1993 | US5198415 Nontoxic, nonchloride, water-base, inhibitive fluid to stabilize water sensitive shale |
| 03/30/1993 | US5197545 Dihydrothiazole in vapor phase as corrosion inhibitors in lift gas process |
| 03/30/1993 | US5197544 Method for clay stabilization with quaternary amines |
| 03/30/1993 | CA1315285C Ether phosphonate surfactants having branched hydrophobic tails and their use in an enhanced oil recovery process |
| 03/28/1993 | CA2079044A1 High temperature well cement compositions and methods |
| 03/23/1993 | US5196401 Method of enhancing rock fragmentation and extending drill bit life |
| 03/23/1993 | US5196143 Mixed metal hydroxide-clay adducts as thickeners for water and other hydrophylic fluids |
| 03/23/1993 | US5195847 Process for cleaning drilling mud contaminated with hydrocarbons |
| 03/23/1993 | CA1314704C Method of inhibiting corrosion of metal surfaces in contact with a corrosive hydrocarbon containing medium |
| 03/23/1993 | CA1314703C Process for the extraction of crude oil from an underground deposit using surfactants |
| 03/23/1993 | CA1314702C Oil-based well bore fluids and gellants therefor |
| 03/21/1993 | CA2075660A1 Polybasic acid esters as oil field corrosion inhibitors |
| 03/20/1993 | CA2070106A1 Sand consolidation methods |
| 03/18/1993 | WO1993005270A1 Process for inhibiting scale formation in subterranean formations |
| 03/17/1993 | EP0532128A1 Load bearing fluid |
| 03/16/1993 | US5194422 Use of selected oleophilic alcohols in water-based drilling fluids of the o/w-emulsion type and corresponding drilling fluids with improved ecological acceptability |
| 03/16/1993 | US5193618 Injection of surfactants, foaming agents and sequesterants |
| 03/16/1993 | US5193617 Micro-slug injection of surfactants in an enhanced oil recovery process |
| 03/16/1993 | CA1314391C Fluid loss control additives for oil wells cementing compositions |
| 03/13/1993 | CA2077236A1 Multivalent ion tolerant steam-foaming surfactant composition for use in enhanced oil recovery operations |
| 03/10/1993 | EP0531033A1 Corrosion inhibitor composition |
| 03/10/1993 | EP0530951A1 Fluid loss control additive for cement |
| 03/10/1993 | EP0530204A1 Dispersant compositions for subterranean well drilling and completion. |
| 03/10/1993 | EP0505441A4 Method of supporting fractures in geological formations and hydraulic fluid composition for same |
| 03/09/1993 | US5192615 Enhanced oil recovery |
| 03/09/1993 | US5191931 Fluid loss control method |
| 03/09/1993 | CA1314205C Enhanced oil recovery using a progressively soluble micellar solution of surfactants |
| 03/09/1993 | CA1314192C Viscosity modifiers for aqueous-based functional products |
| 03/04/1993 | WO1993004265A1 Method and composition for enhanced oil recovery |
| 03/04/1993 | WO1993004264A1 Scale inhibition in oil producing wells |
| 03/04/1993 | WO1993004263A1 Method for scale removal in a wellbore |
| 03/04/1993 | WO1993004259A1 Method for scale removal in a wellbore |
| 03/04/1993 | WO1993004150A1 Improved calcium carboxylate antiwear additives |
| 03/04/1993 | WO1993004028A1 Ester-free ethers |
| 03/04/1993 | WO1993004004A1 Computerized chemical injection system for hydrogen sulfide control in a waste water stream |
| 03/04/1993 | CA2115641A1 Improved calcium carboxylate antiwear additives |
| 03/04/1993 | CA2110918A1 Method and composition for enhanced oil recovery |
| 03/03/1993 | EP0529360A1 Water-in-oil polymer emulsions |
| 03/03/1993 | EP0528909A1 Lubricant composition |
| 03/02/1993 | USH1147 Method of inhibiting corrosion in oil field produced fluids |
| 03/02/1993 | US5191100 Chrome humates as drilling mud additives |
| 03/02/1993 | US5191049 Formation of dispersants |
| 03/02/1993 | US5190675 Gelling organic liquids |
| 03/02/1993 | US5190664 Preventing fouling caused by high temperature geothermal brines, adding sulfuric acid to brine |
| 03/02/1993 | US5190656 Method for removing scale via a liquid membrane in combination with an amino carboxylic acid and a catalyst |
| 03/02/1993 | US5190105 Method for improving the steam splits in a multiple steam injection process |
| 03/02/1993 | US5190103 Injecting surfactant into fluid to form pseudo-single phase fluid |
| 03/01/1993 | CA2076946A1 Oligoquinolinium metal oxide salts as sulfur corrosion inhibitors |
| 02/28/1993 | CA2050081A1 Method and device for an adhesion increase between a wheel and a rail "karina" |
| 02/25/1993 | DE4127744A1 Suppression of sulphate reducing bacteria - by bacterial metabolism of molasses increasing oil recovery from deposits |
| 02/25/1993 | DE4127571A1 Water-in-oil polymer emulsions - contain soluble polymer, vegetable or animal oil, special emulsifier from fatty alcohol, epichlorohydrin, poly:alcohol and alkylene oxide |
| 02/24/1993 | EP0528550A2 Treating subterranean formations |
| 02/24/1993 | EP0528461A2 Delayed borate crosslinked fracturing fluid |
| 02/23/1993 | WO1993004266A1 Method of reducing retention of a displacement agent and application in the assisted recovery of hydrocarbons |
| 02/23/1993 | US5189012 Polymerized olefin monomer; nonpolluting |
| 02/23/1993 | US5188179 Oxidizing hydrogen sulfide to polysulfides which react with free iron to precipitate iron disulfide; continuous processing |
| 02/23/1993 | US5188176 Cement slurries for diviated wells |
| 02/23/1993 | US5188175 Method of fracturing a subterranean formation with a lightweight propping agent |
| 02/23/1993 | CA2094389A1 Method of reducing retention of a displacement agent and application in the assisted recovery of hydrocarbons |
| 02/23/1993 | CA1313755C Oil recovery process using alkyl hydroxyaromatic dianionic surfactants as mobility control agents |
| 02/22/1993 | CA2076516A1 Water-in-oil polymer emulsions |
| 02/20/1993 | CA2067628A1 Methods for inhibiting the production of acid in acid mine waters |
| 02/17/1993 | EP0527278A1 Method of inhibiting corrosion in acidizing wells |
| 02/16/1993 | US5187011 Composition comprising encapsulated substrate with thermoplastic polymer overcoating |
| 02/16/1993 | US5186848 Preparing sulfur solvent compositions comprising treating a sulfide and polyalkyleneoxyamine or polyalkyleneoxypolyamine mixture with an alkylamine or alkanolamine |
| 02/16/1993 | US5186847 Gelling aqueous mixture of cellulose and amine phosphonate hydration aid(with controlled ph) eliminates need for high shear mixing |
| 02/16/1993 | US5186257 N-vinylpyrrolidone homo-, co- and terpolymers with vinly sulfonates and phosphonates |
| 02/10/1993 | EP0526929A1 A method for preventing or retarding the formation of hydrates |
| 02/10/1993 | CN1068842A Methods of drilling well boreholes and compositions used therein |
| 02/09/1993 | US5184680 Cementing subterranean zone penetrated by a well bore using a hydraulic cement, water, a set retarder and a treated depolymerized galactomannan gum delayed viscosifying agent mixture which is nonthinning at high temperatures |
| 02/09/1993 | US5184679 Gravel packing process |