| 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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| 06/14/2001 | CA2389013A1 Compositions including ether-capped poly(oxyalkylated) alcohol wetting agents |
| 06/13/2001 | EP1105441A1 Shale-stabilizing additives |
| 06/13/2001 | EP0948576B1 Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil exploration |
| 06/13/2001 | EP0803024B1 Method of degrading cellulose-containing fluids during completion operations of oil and gas wells |
| 06/12/2001 | US6245142 Flow properties of dry cementitious materials |
| 06/12/2001 | US6244346 Method and apparatus for reducing fouling of injection and recovery wells |
| 06/12/2001 | US6244344 Comprised of hydraulic cement, epoxy resin, and water to form a pumpable slurry |
| 06/12/2001 | US6244343 Cementing in deep water offshore wells |
| 06/12/2001 | CA2023990C Liquid cleaning compositions and suspending media |
| 06/07/2001 | WO2001040412A1 Petroleum fuel additive formulations |
| 06/07/2001 | WO2001040410A1 Oil production additive formulations |
| 06/07/2001 | CA2392061A1 Oil production additive formulations |
| 06/06/2001 | EP1104798A1 Non-damaging drilling fluids |
| 06/05/2001 | US6242390 Cleanup additive |
| 06/05/2001 | US6242389 Drilling fluids of glyol ether block copolymers and water soluble salts |
| 06/05/2001 | US6242388 Oil and gas wells with coupling solvents and surfactants |
| 05/31/2001 | WO2001038695A2 A method for recovering water soluble surfactants |
| 05/31/2001 | US20010001991 Oleaginous fluid, a polar organic solvent, and an electrolytic salt present in a concentration so as to permit the electrical logging of the subterranean well, and a carbon dioxide buffer |
| 05/30/2001 | EP1103697A1 Process for reducing the adsorption of polymers onto rock matrix |
| 05/30/2001 | EP1103589A1 Drilling fluids comprising oil emulsions in water |
| 05/30/2001 | EP1103588A1 Water-based drilling fluid containing anions with a high hydrodynamic radius |
| 05/30/2001 | EP1102826A1 Wellbore fluid |
| 05/30/2001 | EP0939855B1 Additives for inhibiting formation of gas hydrates |
| 05/30/2001 | CN1297427A Anionic surfactants based on alkene sulfonic acid |
| 05/30/2001 | CN1066513C Method for inhibiting plugging of conduits |
| 05/29/2001 | US6239183 Method for controlling the rheology of an aqueous fluid and gelling agent therefor |
| 05/29/2001 | US6239081 Alkali-metal-carboxylate-containing drilling fluid having improved corrosion properties |
| 05/29/2001 | CA2217659C Methods of fracturing subterranean formations |
| 05/25/2001 | WO2001036713A1 Inhibitor compositions |
| 05/24/2001 | US20010001381 Dry blending a particulate flow enhancing aditive comprised of a particulate solid adsorbent selected from silica, zeolite and talcum having a flow inducing polar molecule producing chemical adorbed thereon with cementitious material |
| 05/23/2001 | CN1066129C Method for inhibiting hydrate formation |
| 05/22/2001 | US6235809 Multi-functional additive for use in well cementing |
| 05/22/2001 | US6235701 Stabilized carbon dioxide fluid composition and use thereof |
| 05/22/2001 | US6235193 Adjustable continuous filtration system for cooking fats and cooking oils |
| 05/22/2001 | US6234251 Resilient well cement compositions and methods |
| 05/22/2001 | US6234183 Injecting an aqueous surfactant of an alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol |
| 05/17/2001 | WO2001034939A1 Method and composition for the triggered release of polymer-degrading agents for oil field use |
| 05/17/2001 | WO2001034733A1 Compositions containing wax modifiers |
| 05/17/2001 | WO2000052301A9 An efficient method for subsurface treatments, including squeeze treatments |
| 05/16/2001 | EP1098950A1 Method for using biodegradable drilling fluid |
| 05/16/2001 | EP1056693A4 Anionic surfactants based on alkene sulfonic acid |
| 05/16/2001 | EP0968323B1 Compositions based on salts of mercapto acids and imidazolines as inhibitors of carbonic corrosion of iron and ferrous metals |
| 05/16/2001 | CN1065889C Composition composed of polymer containing acrylicamide and its use method |
| 05/15/2001 | US6232274 Viscoelastic surfactant based gelling composition for wellbore service fluids |
| 05/15/2001 | US6232273 Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it |
| 05/15/2001 | US6231664 Slag cement |
| 05/15/2001 | US6231657 Supplementation of cellulose nanofibrils with carboxycellulose with low degree of substitution |
| 05/15/2001 | US6230814 Process for enhancing hydrocarbon mobility using a steam additive |
| 05/15/2001 | US6230804 Stress resistant cement compositions and methods for using same |
| 05/10/2001 | WO2001033041A1 Method of treating a hydrocarbon-bearing formation |
| 05/10/2001 | WO2001033040A1 Method of microbial enhanced oil recovery |
| 05/10/2001 | WO2001033039A1 Composition and process for oil extraction |
| 05/10/2001 | WO2001032590A2 Isomerization process |
| 05/08/2001 | US6227295 High temperature hydraulic fracturing fluid |
| 05/08/2001 | US6227294 Methods of cementing subterranean zones |
| 05/08/2001 | CA2091489C Gelation of water soluble polymers |
| 05/01/2001 | US6225264 Controlling the gelation rates of water soluble polymer solutions used as fracturing fluids in well fracturing operations; boron source suspended by an organophilic clay in a solution of a non-aqueous solvent. |
| 05/01/2001 | US6225263 Injecting into the formation, preferably in the form of an aqueous solution, at least one mono alkyl ether of polyethylene glycol in which the alkyl group has 3-5 carbons and the polyethylene glycol contains 3-6 ethylene oxy units |
| 05/01/2001 | US6225262 Encapsulated breaker slurry compositions and methods of use |
| 05/01/2001 | US6225261 Composition and method for controlling precipitation when acidizing wells |
| 05/01/2001 | US6224663 Additivation of essentially amorphous cellulose nanofibrils with carboxyl cellulose with a high degree of substitution |
| 04/26/2001 | WO2001029369A1 A novel fluid system having controllable reversible viscosity |
| 04/25/2001 | EP1094044A1 Slurry for tight screens |
| 04/25/2001 | EP1093541A1 Method for preventing deposits in oil extraction |
| 04/24/2001 | US6222083 Method for inhibiting hydrate formation |
| 04/24/2001 | US6221152 Stable suspension of hydrocolloids |
| 04/24/2001 | US6220354 High strength foamed well cement compositions and methods |
| 04/24/2001 | US6220352 Injecting a micelle treating fluid into the well penetrating subterranean formation, comprising a 2 % potassium chloride water solution and a solvent and alkyl or alkylaryl polyoxyalkylene phosphate ester surfactant, displacing fluid |
| 04/24/2001 | CA2237271C Methods and emulsions for inhibition of oil well corrosion |
| 04/24/2001 | CA2198156C Nitrogen/carbon dioxide combination fracture treatment |
| 04/19/2001 | WO2001027440A1 Well treatment fluids comprising mixed aldehydes |
| 04/19/2001 | WO2001027439A1 Process for enhancing hydrocarbon mobility using a steam additive |
| 04/19/2001 | WO2001027438A1 Asphaltene inhibitors |
| 04/19/2001 | WO2001027218A1 Treating a formation using a foam forming composition |
| 04/19/2001 | WO2000068324A3 Enzymatic preservation of water based paints |
| 04/19/2001 | DE19909231C2 Wasserlösliche Copolymere auf AMPS-Basis und ihre Verwendung als Bohrhilfsmittel Water-soluble copolymers based on AMPS and their use as drilling aids |
| 04/19/2001 | CA2386721A1 Asphaltene inhibitors |
| 04/18/2001 | EP1092835A1 Cross-linked aqueous well treating fluids |
| 04/18/2001 | EP1092734A1 Regulator for digging mud |
| 04/18/2001 | EP1092693A2 Crack and shatter resistant well cement |
| 04/18/2001 | EP1092003A1 Borehole fluid containing a lubricating composition - method for verifying the lubrification of a borehole fluid - application with respect to fluids with a high ph |
| 04/18/2001 | EP0866841B1 New aqueous swellable compositions of guar gum and guar gum derivatives in oleophilic liquids and their use |
| 04/18/2001 | CN1292059A Compositions for use in well construction, repair and/or abandonment |
| 04/18/2001 | CN1291964A Universal well cement additives and methods |
| 04/18/2001 | CN1064697C Gel of apolar medium, its use for preparation of water-based drilling fluids |
| 04/17/2001 | US6218343 Additive for, treatment fluid for, and method of plugging a tubing/casing annulus in a well bore |
| 04/17/2001 | US6218342 Oil-based drilling fluid |
| 04/17/2001 | US6216801 Method and apparatus for providing proportional injection of additives into drilling fluids |
| 04/17/2001 | US6216783 Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments |
| 04/17/2001 | CA2231973C Water soluble corrosion inhibitors |
| 04/17/2001 | CA2178367C Method for inhibiting hydrate formation |
| 04/17/2001 | CA2178366C Polymers and method for inhibiting hydrate formation |
| 04/17/2001 | CA2124873C Iodine-containing corrosion inhibitor for oil field acidizing operations |
| 04/14/2001 | CA2326084A1 Methods of drilling a bore hole and dehydrating drilling fluids |
| 04/12/2001 | WO2001025372A1 A method for inhibiting hydrate formation |
| 04/12/2001 | WO2001025163A1 Cementing compositions and application of such compositions for cementing oil wells or the like |
| 04/11/2001 | EP1091086A1 Aqueous gelled compositions for treating wells |
| 04/11/2001 | EP1091085A1 Asphaltene inhibitors |
| 04/11/2001 | EP1090086A1 A lubricating method for silicate drilling fluids |
| 04/11/2001 | EP1090085A1 Environmentally preferred fluids and fluid blends |