| 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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| 01/28/2003 | US6511537 Slurries comprising mixtures of cements, water, calcium or sodium salts of ethylenediaminotetramethylenephosphonic acids, phosphates and optionally biopolymers, having delayed setting |
| 01/28/2003 | CA2051624C Oleophilic alcohols as a constituent of invert drilling fluids |
| 01/23/2003 | WO2003006583A1 Method for inhibiting corrosion using certain aromatic acidic species |
| 01/23/2003 | WO2003006582A1 Method for inhibiting corrosion using 4-sulfophthalic acid |
| 01/23/2003 | WO2003006572A1 METHOD OF INCREASING pH OF HIGH-DENSITY BRINES |
| 01/23/2003 | WO2003006135A2 Suspensions of particles in non-aqueous solvents |
| 01/23/2003 | US20030017953 Thermal extenders for well fluid applications involving synthetic polymers |
| 01/23/2003 | US20030017952 Hydration; flaking; extrusion |
| 01/23/2003 | US20030017951 Pumpable multiple phase compositions for controlled release application downhole |
| 01/23/2003 | US20030015321 Cyclic solvent process for in-situ bitumen and heavy oil production |
| 01/22/2003 | EP1276967A2 A method for treating a hydrocarbon containing formation |
| 01/22/2003 | EP1276966A1 A method for treating a hydrocarbon-containing formation |
| 01/22/2003 | EP1276965A1 A method for treating a hydrocarbon containing formation |
| 01/22/2003 | EP1276964A1 A method for treating a hydrocarbon containing formation |
| 01/22/2003 | EP1276963A1 In situ recovery of hydrocarbons from a kerogen-containing formation |
| 01/22/2003 | EP1276961A2 Method for treating a hydrocarbon-containing formation |
| 01/22/2003 | EP1276960A2 A method for sequestering a fluid within a hydrocarbon containing formation |
| 01/22/2003 | EP1276959A2 Method and system for treating a hydrocarbon containing formation |
| 01/22/2003 | EP1276958A1 Electrical well heating system and method |
| 01/22/2003 | EP1276957A1 Electrical well heating system and method |
| 01/22/2003 | EP1276828A1 Maintenance of oil production and refining equipment |
| 01/22/2003 | EP1276552A2 Method of generating gas bubbles in oleaginous liquids |
| 01/22/2003 | CN1392220A Cleaning oil and gas well, pipeline, sleeve, stratum and equipment composition and its using method |
| 01/21/2003 | US6509301 Well treatment fluids and methods for the use thereof |
| 01/21/2003 | US6509300 Liquid CO2/hydrocarbon oil emulsion fracturing system |
| 01/21/2003 | US6508307 Techniques for hydraulic fracturing combining oriented perforating and low viscosity fluids |
| 01/21/2003 | US6508306 Sealing subterranean well bores using mixtures of butadiene-styrene copolymer emulsions, melamine-formaldehyde resins and acid catalysts, then contacting with drilling fluids to restore hydrostatic pressure; dimensional stability; hardness |
| 01/21/2003 | US6508305 Compositions and methods for cementing using elastic particles |
| 01/16/2003 | WO2003004581A1 Method of and composition for reducing the loss of fluid during well drilling, completion or workover operations |
| 01/16/2003 | US20030013893 Corrosion inhibitor compositions including quaternized compounds |
| 01/16/2003 | US20030013621 Method for inhibiting corrosion using certain aromatic acidic species |
| 01/16/2003 | US20030013614 Using oxyamide containing compound |
| 01/16/2003 | US20030012684 Method for inhibiting corrosion using 4-sulfophthalic acid |
| 01/15/2003 | EP1274883A2 Corrosion inhibitor |
| 01/15/2003 | EP1274809A2 Drilling mud |
| 01/15/2003 | EP1274802A1 Suspensions of water soluble polymers in surfactant free non-aqueous solvents |
| 01/15/2003 | CN1391634A Method for recovering water soluble surfactants |
| 01/15/2003 | CN1098968C Method for production of oil and gas |
| 01/14/2003 | US6506945 Process for preparing ether-capped poly(oxyalkylated) alcohol surfactants |
| 01/14/2003 | US6506837 Organize in water to form micelles; gelling agents or thickeners for aqueous medium; viscoelastic gels |
| 01/14/2003 | US6506711 Reducing aluminum compound precipitation during subterranean formation acidizing |
| 01/14/2003 | US6506710 Gelling agent composition which comprises at least one glycol as a solvent, and at least one amidoamine oxide gelling agent |
| 01/14/2003 | CA2216798C Use of sized salts as bridging agent for oil based fluids |
| 01/09/2003 | US20030008803 Surfactant compositions for well cleaning |
| 01/09/2003 | US20030008781 Thickening compound of a cationic surfactant, an amphoteric surfactant and an anionic surfactant, and water with no inorganic salt; formation has material that swells or migrates upon exposure to the fluid |
| 01/09/2003 | US20030008780 Admixing a fast-hydrating high-viscosity guar powder to a hydrating liquid, hydrating, mixing a crosslinker and introducing to a wellbore at sufficient temperature and pressure |
| 01/09/2003 | US20030008779 Absence of visible separation of hydroxyethylcellulose and a sulfonic acid functional polymer after standing in ambient solution for 3 months, solubility reading of < 20 nephelometric turbidity units and concentration of 2.5% |
| 01/09/2003 | US20030008778 Mixing a water-soluble crosslinkable polysaccharide to gel a fluid, a crosslinking agent and a quantity of lost circulation material solids, pumping into a well bore and crosslinking at a temperature of > 110 degrees f |
| 01/09/2003 | US20030006040 Process for the cleaning of oil and gas wellbores |
| 01/09/2003 | US20030006039 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance |
| 01/09/2003 | US20030006038 Hydraulic cement, water, environmentally degradable water reducing and dispersing additives, set retarding additive and compressive strength and set accelerating additives |
| 01/09/2003 | US20030006037 Oil, a hydratable polymer, an organophillic clay, a water-swellable clay, and an acid soluble material forms a viscous gel when contacted with water |
| 01/08/2003 | EP1273756A1 Surfactant compositions for well cleaning |
| 01/08/2003 | CN1390276A Method and composition for the triggered release of polymer-degrading agents for oil field use |
| 01/08/2003 | CN1389538A Method for fracturing rock-layer underground |
| 01/08/2003 | CN1098404C Method for use in well construction, repair and/or a bandonment |
| 01/08/2003 | CN1098344C Substantially linear ethylene/alpha-olefin polymers as viscosity index improvers or gelling agents |
| 01/07/2003 | US6503870 Sealing subterranean zones |
| 01/07/2003 | US6502637 Treating shale and clay in hydrocarbon producing formations |
| 01/07/2003 | CA2236243C Chemically induced permeability enhancement of subterranean coal formation |
| 01/03/2003 | WO2003001030A1 Fracturing fluids and methods of making and using same |
| 01/03/2003 | CA2390175A1 Polyols for breaking borate crosslinked fracturing fluid |
| 01/02/2003 | US20030004068 Well drilling fluids |
| 01/02/2003 | US20030004067 Comprised of water, a gelling agent, sufficient gas to form a foam, and an effective amount of an additive for foaming and stabilizing the gelled water comprised of hydrolyzed keratin |
| 01/02/2003 | US20030000428 Foamed well cement slurries, additives and methods |
| 01/02/2003 | US20030000423 Lightweight well cement compositions and methods |
| 01/02/2003 | EP1270617A2 Acrylat copolymer partially or fully soluble in water, cured or not and its use |
| 01/02/2003 | EP1268976A2 Viscosity reduction of viscoelastic surfactant based fluids |
| 01/02/2003 | EP1268361A1 Cementing compositions and application of these compositions to cementing oil wells or the like |
| 01/02/2003 | EP1169406A4 Method of releasing stuck pipe or tools and spotting fluids therefor |
| 01/02/2003 | EP1161511A4 Aphron-containing oil base fluids and method of drilling a well therewith |
| 01/02/2003 | EP1161510A4 Aphron-containing aqueous well drilling and servicing fluids |
| 01/02/2003 | EP1045869B1 Cementation auxiliary agent |
| 12/31/2002 | US6500785 Water-based drilling fluid containing anions with a high hydrodynamic radius |
| 12/31/2002 | US6500252 High strength foamed well cement compositions and methods |
| 12/31/2002 | US6499546 Buffered well fluids |
| 12/31/2002 | US6499539 Process for reducing the adsorption of polymers onto rock matrix |
| 12/31/2002 | CA2232092C Method for removing debris from a well-bore |
| 12/27/2002 | WO2002103152A1 Hydrothermal drilling method and system |
| 12/27/2002 | WO2002103081A2 Halogen acid corrosion inhibitor base |
| 12/27/2002 | WO2002102928A2 Method for solubilising asphaltenes in a hydrocarbon mixture |
| 12/27/2002 | WO2002102922A1 Shale hydration inhibition agent and method of use |
| 12/27/2002 | WO2002102917A2 Polymer solutions with shear reversible properties |
| 12/27/2002 | WO2002092963A8 A gas lift method with surfactant injection |
| 12/27/2002 | CA2450162A1 Method for solubilising asphaltenes in a hydrocarbon mixture |
| 12/24/2002 | US6497283 Cementing using slurry of water, hydraulic cement and fluid loss control terpolymer comprising a vinylsulfonic acid, 2-allyloxy-2-hydroxy-1-propanesulfonic acid or 2-acrylamido-2-methylpropanesulfonic acid monomer |
| 12/19/2002 | WO2002100973A1 Thermal extenders for well fluid applications involving synthetic polymers |
| 12/19/2002 | US20020193343 Controlled enzymatic degradation of guar galactomannan solutions using enzymatic inhibition |
| 12/19/2002 | US20020193257 Viscosity reduction of viscoelastic surfactant based fluids |
| 12/19/2002 | US20020193256 For use with chemical, agricultural chemical, paper chemical, textile chemical, paint, joint cement, textured finishing compound, cosmetics hair spray, gelatin substitute, ceramic material, etc.; storage stability |
| 12/19/2002 | US20020191969 In situ thermal processing of a coal formation in reducing environment |
| 12/19/2002 | US20020191968 In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gas |
| 12/19/2002 | US20020189810 Well service fluid and method of making and using the same |
| 12/19/2002 | CA2450277A1 Thermal extenders for well fluid applications involving synthetic polymers |
| 12/18/2002 | EP1267034A2 Subterranean formation treating fluids and concentrates |
| 12/17/2002 | US6495493 Aqueous dispersion of polysaccharide and filtrate reducer comprised of crosslinked starch and cellulose microfibers |
| 12/17/2002 | US6494951 Methods of cementing within subterranean formations penetrated by well bores wherein the flow properties of one or more dry particulate cementitious materials are improved and wherein the materials can be readily conveyed out of storage tanks |
| 12/17/2002 | US6494263 Well drilling and servicing fluids and methods of removing filter cake deposited thereby |
| 12/17/2002 | US6494218 Method of removing metal sulfates from surfaces |
| 12/12/2002 | WO2002099248A1 Thermal extenders for well fluid applications |