| 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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| 08/05/1992 | EP0497589A2 Gelled aqueous well treating fluid |
| 08/05/1992 | EP0497055A1 High density particulate slurries for well completion |
| 08/04/1992 | US5135999 Compositions and methods for inhibiting corrosion |
| 08/04/1992 | US5135909 Drilling mud comprising tetrapolymer consisting of N-vinyl-2-pyrrolidone, acrylamidopropanesulfonic acid, acrylamide, and acrylic acid |
| 08/04/1992 | US5135668 Process for inhibiting corrosion in oil production fluids |
| 08/04/1992 | US5135577 Composition and method for inhibiting thermal thinning of cement |
| 08/04/1992 | US5135575 Method of forming stable dispersions of particulate matter |
| 08/04/1992 | US5135052 Recovery of oil using microemulsions |
| 08/01/1992 | WO1992013926A1 Use of surface-active carboxylic acid complex esters as emulsifiers in oil-based drilling muds and other borehole treatment agents |
| 08/01/1992 | CA2101757A1 Use of surface-active carboxylic acid complex esters as emulsifiers in oil-based drilling fluids and other well servicing fluids |
| 07/31/1992 | WO1992014031A1 Well cleanout using caustic alkyl polyglycoside compositions |
| 07/30/1992 | WO1992013905A1 Method for controlling oil reservoir permeability using biomass oil |
| 07/29/1992 | EP0496584A2 Hydrophilic-Hydrophobic derivatives of polygalactomannans containing tertiary amine functionality |
| 07/29/1992 | EP0495856A1 Wellbore fluid. |
| 07/28/1992 | US5134215 Method for reducing fluid loss from oilfield cement slurries using vinyl grafted wattle tannin |
| 07/28/1992 | US5134176 Crosslinked polyvinyl amine copolymer gels for use under harsh reservoir conditions |
| 07/28/1992 | US5134118 Water soluble polymer of 2-acrylamido-2-metjyl propanesulfonic acid, acycliamine, dimethylacrylamide and styrenesulfonic acid, gelling agent and inorganic additives |
| 07/28/1992 | US5133625 Method and apparatus for subsurface bioremediation |
| 07/28/1992 | US5133409 Foamed well cementing compositions and methods |
| 07/28/1992 | US5133408 In situ gelation of hydrolyzed acrylamide-acrylic ester copolymer |
| 07/28/1992 | CA1305818C Cross-linked organopolysiloxanes and emulsions based thereon |
| 07/28/1992 | CA1305659C Remedial treatment for coal degas wells |
| 07/28/1992 | CA1305590C Dispersible hydrophilic polymer compositions for use in viscosifying heavy brines |
| 07/23/1992 | WO1992012325A1 Stable suspension and use thereof for recovering hydrocarbons |
| 07/23/1992 | CA2039670A1 Hydrophilic-hydrophobic derivatives of polygalactomannans containing tertiary amine functionality |
| 07/22/1992 | EP0495579A2 Drilling fluid |
| 07/22/1992 | EP0495108A1 Water-swelling polymer-mineral composite and method of obtaining it |
| 07/22/1992 | CN1062949A Method for selectively reducing subterranean water permeability |
| 07/21/1992 | US5132285 Or enhancing water retention, graft copolymerizing a polysaccharide with a cationic/anionic monomer pair or a zwitterionic monomer, thermal initiator, dispersing resultant polyampholyte in aqueous media |
| 07/21/1992 | US5132284 Thickeners, stabilizers; papermaking, oil drilling; guar gum |
| 07/21/1992 | US5132029 Gellable mixture of partially hydrolyzed polyacrylamide, chromium salt crosslinking agent, acid, and water |
| 07/21/1992 | US5131469 Gellable aqueous compositions and its use in enhanced petroleum recovery |
| 07/15/1992 | EP0494748A2 Cementing a cylinder in a bore |
| 07/15/1992 | EP0494739A2 Directional drilling method |
| 07/14/1992 | US5130473 Used to sequester iron in asphaltene reservoirs |
| 07/14/1992 | US5130249 Galactomannan polysaccharide producing organism |
| 07/14/1992 | US5130191 Foamed sealant composition for use in mine stoppings and the consolidation of other geological formations |
| 07/14/1992 | US5130034 Corrosion inhibitor and method of use |
| 07/14/1992 | US5129458 Treating an underground formation |
| 07/14/1992 | US5129457 Injecting foam |
| 07/14/1992 | CA1304927C Composite cement for well bores |
| 07/09/1992 | WO1992011441A1 pH TOLERANT HETEROPOLYSACCHARIDE GELS FOR USE IN PROFILE CONTROL |
| 07/09/1992 | WO1992011440A1 Method for selectively reducing subterranean water permeability |
| 07/09/1992 | CA2098829A1 Method for selectively reducing subterranean water permeability |
| 07/07/1992 | US5128390 Tertiary amine or zwitterion |
| 07/07/1992 | US5128051 Method for the control of biofouling |
| 07/07/1992 | US5127955 Hydraulic cements, hydroxybenzoic acids and hydroxybenzenesulfonic acids |
| 07/07/1992 | US5127475 Lubrication |
| 07/07/1992 | US5127473 Repair of microannuli and cement sheath |
| 07/07/1992 | CA1304676C Process for selective placement of polymer gels for profile control in thermal recovery |
| 07/07/1992 | CA1304571C Process to improve the scanning of a gas from an oil-bearing formation, including the use of surface-active perfluorinated foams |
| 07/05/1992 | WO1992012328A1 Encapsulated breaker chemical with a multi-coat layer urea |
| 07/05/1992 | WO1992012327A1 Encapsulated breaker chemical |
| 07/05/1992 | CA2098620A1 Encapsulated breaker chemical with a multi-coat layer urea |
| 07/05/1992 | CA2098619A1 Encapsulated breaker chemical |
| 06/30/1992 | US5126059 Precipitation control |
| 06/30/1992 | US5126051 Enzymatic decomposition of drilling mud |
| 06/30/1992 | US5125456 Inorganic crosslinking agent and a cationic polymer containing acrylamide |
| 06/30/1992 | US5125455 Primary cementing |
| 06/29/1992 | CA2058266A1 Method of inhibiting corrosion in oil field produced fluids |
| 06/25/1992 | WO1992010640A1 Encapsulations for treating subterranian formations and methods for the use thereof |
| 06/23/1992 | US5124312 Drilling fluid thinners |
| 06/23/1992 | US5123488 Method for improved displacement efficiency in horizontal wells during enhanced oil recovery |
| 06/23/1992 | US5123487 Repairing leaks in casings |
| 06/23/1992 | US5123486 Polysilylenesiloxane polymers useful in enhanced oil recovery using carbon dioxide flooding |
| 06/22/1992 | WO1992011340A1 Application of scleroglucane slurries to the drilling of deflected wells |
| 06/22/1992 | CA2075936A1 Application of scleroglucane slurries to the drilling of deflected wells |
| 06/22/1992 | CA2052006A1 Alkoxylated surfactant system for heavy oil reservoirs |
| 06/17/1992 | CN1061981A Suspending medium for water soluble polymer |
| 06/16/1992 | US5122549 Crosslinkable cellulose derivatives |
| 06/16/1992 | US5121801 Soluble for crosslinked graft copolymers of lignin based on hydroxyethylmethacrylate and acrylamide |
| 06/16/1992 | US5121795 Terminating the flow of fluid through a gravel pack in a wellbore, or from a highly permeable portion of a fracture in a suterranean formation |
| 06/16/1992 | CA1303454C Organophilic clay suspension medium |
| 06/15/1992 | CA2045973A1 Selective permeability reduction in a subterranean hydrocarbon-bearing formation using a nonselective gel |
| 06/11/1992 | WO1992009786A1 A method for dissolution and removal of alkaline earth metal scales |
| 06/10/1992 | EP0489498A1 Acidizing subterranean formations |
| 06/09/1992 | US5120708 Non-poluting anti-stick water-base drilling fluid modifier and method of use |
| 06/09/1992 | US5120471 Process and composition for protecting chrome steel |
| 06/09/1992 | US5120455 Hydraulic fracturing propping agent |
| 06/09/1992 | CA1303285C Cross-linked polyvinyl alcohol and its use in controlling the permeability of subterranean formations and in the production of oiltherefrom |
| 06/09/1992 | CA1302872C Production of hydrogen sulphide-containing gas from an underground formation |
| 06/09/1992 | CA1302870C Method for treating subterranean formations |
| 06/06/1992 | CA2046671A1 Selected hydroxy-oximes as iron deactivators |
| 06/04/1992 | CA2056856A1 Steam injection profile control agent and process |
| 06/02/1992 | US5118664 Drilling fluid additives reduces fluid loss from bore holes, plant materials |
| 06/02/1992 | US5118536 Compositions and methods for inhibiting corrosion |
| 06/02/1992 | US5117909 Prevention gas leakage from oil wells |
| 06/02/1992 | US5117907 Enhanced oil recovery |
| 06/02/1992 | CA1302029C Viscosifier, its uses, and its manufacture |
| 05/29/1992 | WO1992008876A1 Breaker system for high viscosity fluids and method of use |
| 05/29/1992 | WO1992008542A1 Method for regenerating scale solvent |
| 05/27/1992 | EP0487153A1 Gellable aqueous compositions containing polymers with special chelating functional groups useful for recovering oil from an oil field |
| 05/26/1992 | US5116421 High temperature fluid loss additive for cement slurry and method of cementing |
| 05/26/1992 | US5116390 Catalytically enhanced combustion process |
| 05/26/1992 | CA1301636C Gas flooding processing for the recovery of oil from subterranean formations |
| 05/26/1992 | CA1301446C Subterranean formation treating with delayed crosslinking gel fluids |
| 05/26/1992 | CA1301445C Reducing permeability of highly permeable zones in oil and gas formations |
| 05/26/1992 | CA1301444C Hydraulic fracturing process using a polymer gel |
| 05/26/1992 | CA1301443C Carbon dioxide systems for hydraulic fracturing of hydrocarbon reservoirs |
| 05/20/1992 | EP0385991B1 Process for the production of iron oxide having high reactivity and high specific surface |