| 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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| 08/28/2003 | US20030162668 Additive for oil-based drilling fluids |
| 08/28/2003 | US20030159625 Hydraulic cements; well completion |
| 08/28/2003 | CA2512195A1 Anhydride-modified chitosan, method of preparation thereof, and fluids containing same |
| 08/28/2003 | CA2419829A1 Aminocarboxylic acid breaker compositions for fracturing fluids |
| 08/27/2003 | EP1338756A1 Fluid loss control additives for wellcements |
| 08/27/2003 | EP1338755A2 Well treatment methods |
| 08/27/2003 | EP1337599A2 Stable liquid suspension compositions and method of making and use thereof |
| 08/27/2003 | CN1119500C Method for preventing deposits in oil extraction |
| 08/26/2003 | US6610140 For cementing in subterranean zones penetrated by well bores; comprised of hydraulic cement, water to form slurry, and water soluble delayed thixotropy imparting additive (carbonic acid and alkali metal carbonates) |
| 08/26/2003 | US6610139 Adsorbing a flow inducing chemical(polar molecule producing organic acids, salts and acid anhydride) on a particulate solid adsorbent material |
| 08/26/2003 | US6609578 Shale hydration inhibition agent and method of use |
| 08/26/2003 | US6609570 In situ thermal processing of a coal formation and ammonia production |
| 08/21/2003 | WO2003068708A1 Cement compositions for high temperature applications |
| 08/21/2003 | WO2003018708A3 Alkali metal tungstate compositions and uses thereof |
| 08/21/2003 | US20030158269 Made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol. |
| 08/21/2003 | US20030158046 Oil based well fluids with high solids content |
| 08/21/2003 | US20030158045 Providing fluid selected from emulsion-type drilling, drill-in, or completion fluid having rheology and fluid loss control properties; using a fibrous lost circulation material (LCM) in initial fluid for maintaining electrical stability |
| 08/21/2003 | US20030155157 Clay antiswelling agents |
| 08/21/2003 | US20030155124 Methods of forming permeable sand screens in well bores |
| 08/21/2003 | US20030155123 Method of treating reservoir zone of hydrocarbon producing well to inhibit water production problerms |
| 08/21/2003 | US20030155122 Method of recovering hydrocarbon fluids from a subterranean reservoir |
| 08/21/2003 | DE10163259C1 Inhibition of gas hydrate formation, useful in transport in petroleum and natural gas industry and in drilling mud, uses polymer with vinyl alcohol, vinyl or allyl ester and optionally acetal and/or other units |
| 08/20/2003 | EP1336594A1 Cement compositions for sealing subterranean zones |
| 08/20/2003 | EP0998707A4 Host microprocessor with apparatus for temporarily holding target processor state |
| 08/20/2003 | EP0861120B1 Oil-free, water-soluble, hydroxyethyl cellulose, liquid, polymer dispersion |
| 08/20/2003 | EP0853651B1 Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use |
| 08/20/2003 | CN1437645A Stability enhanced water-in-oil emulsion and method for using same |
| 08/20/2003 | CN1118532C Hihg-temp. high-pressure hypersalinity drilling fluid rheological property stabilizing agent |
| 08/19/2003 | US6608159 Polymeric, acrylamide-free water retention agent |
| 08/19/2003 | US6608006 Contacting oil external-water internal emulsion with acid solution containing anionic sulfonate surfactant to prevent acid solution-oil emulsions and oil sludging and chemical to prevent surfactant from reacting with emulsifier |
| 08/19/2003 | US6608005 Containing effective concentration of cations and anions from water stable hydrophobic ionic liquid; enhanced electrical conductivity |
| 08/19/2003 | US6607035 Pumping sealing mixture of water, biodegradable and non-toxic chitosan cross-linking agent and water-soluble polymer; gelation |
| 08/19/2003 | US6607033 In Situ thermal processing of a coal formation to produce a condensate |
| 08/19/2003 | CA2237383C Refined oil gelling system |
| 08/19/2003 | CA2235388C Preparation of hydrocarbon gels from ferric sources, polycarboxylic acid compounds, and optional amines, in combination with phosphate esters |
| 08/19/2003 | CA2097145C Fatty acid additives for surfactant foaming agents |
| 08/14/2003 | WO2003050387A3 Friction reducing composition and method |
| 08/14/2003 | US20030153646 Mixture of a liquid and a solid having a loading agent of particle size of </= 5 microns, a density close to that of the drilling fluid or mud and viscosity close to that of water |
| 08/14/2003 | US20030153631 Alkyl glycidyl ether-capped diamine foam controlling agents |
| 08/14/2003 | US20030153467 Thickeners; viscoelectricity fluids for wells |
| 08/14/2003 | US20030150615 Coarse particulate hydraulic cement, an ultrafine particulate hydraulic cement mixture comprised of slag cement and a Portland or equivalent cement, fly ash, fumed silica, hollow glass spheres and water. |
| 08/14/2003 | US20030150614 Canister, sealing method and composition for sealing a borehole |
| 08/14/2003 | US20030150613 Containing an acid, a scale inhibitor, and a reducing agent to prevent the iron ions in the system from reacting with and forming a precipitate with the scale inhibitor and maintains the iron ions in a ferrous state |
| 08/13/2003 | EP0993334B1 Fluids containing viscoelastic surfactant and methods for using the same |
| 08/13/2003 | CN1436274A Method and system for treating hydrocarbon contg. formation |
| 08/13/2003 | CN1436272A Surfactant blends for aqueous solutions useful for enhanced oil recovery |
| 08/13/2003 | CN1435464A Borehole synthetic chlorine dioxide blocking remover and broken down method therewith for oil field |
| 08/13/2003 | CN1435454A Alkyl glycidyl ether end-capped diamine compound foam control agent |
| 08/12/2003 | US6605570 Well completion; comprises crosslinked polymer, proppant, and gravel; for fracturing subterranean formations |
| 08/12/2003 | CA2216325C Oil gel |
| 08/08/2003 | CA2418513A1 High temperature viscosifying and fluid loss controlling additives for well cements, well cement compositions and methods |
| 08/07/2003 | WO2003064815A1 Method for increased oil recovery |
| 08/07/2003 | WO2003064556A1 Oil based well fluids with high solids content |
| 08/07/2003 | WO2003064555A1 High performance water based drilling mud and method of use |
| 08/07/2003 | WO2002102917A8 Polymer solutions with shear reversible properties |
| 08/07/2003 | WO2002046253A3 Polymeric fluid loss additives and method of use thereof |
| 08/07/2003 | US20030149212 Highly crosslinked expandable polymeric particles with unexpanded volume average particle size diameter of .05-10 microns and having 6000-9000 ppm of labile crosslinkers and 0-300 ppm of non-labile crosslinkers |
| 08/07/2003 | US20030149210 Water soluble copolymer of 5-95% styrenesulfonic acid, 5-95% of vinylsulfonic acid and 0-20% of a vinylphosphonic acid |
| 08/07/2003 | US20030148893 Composite silica proppant material |
| 08/07/2003 | US20030148892 Drilling fluids |
| 08/06/2003 | EP1333152A1 Encapsulated liquid for well treatment |
| 08/06/2003 | EP1333108A2 Corrosion inhibitors for the petroleum industry |
| 08/06/2003 | EP1332275A2 Corrosion inhibitor-drag reducer combinations |
| 08/06/2003 | EP1332195A1 Drilling fluid comprising a high-amylose starch |
| 08/06/2003 | CN1434893A Composition and method for recovering hydrocarbon fluids from subterranean reservoir |
| 08/06/2003 | CN1117207C Method for producing methane by penetrating underground coal layer thorugh at least one well |
| 08/05/2003 | US6602828 Refined oil gelling system |
| 08/05/2003 | US6601647 Sealing pipe in well bore penetrating zone; placing hydraulic cement, water, and suspension of microspheres in water gelled with sodium bentonite; hardening |
| 08/01/2003 | CA2417601A1 Treatment of a well with an encapsulated liquid and process for encapsulating a liquid |
| 07/31/2003 | WO2003062594A1 Lost circulation compositions |
| 07/31/2003 | WO2003062344A2 Acidizing and scale treatment of subterranean formation |
| 07/31/2003 | WO2003040520A3 Method for treating a bottom-hole formation zone |
| 07/31/2003 | US20030144374 A seals mixture comprising water, a hydraulic cement, an organophillic clay, a hydratable gelling agent and a water soluble bases; flow control agents for oil well drilling |
| 07/31/2003 | US20030144154 Crosslinked polymer fluids and crosslinking concentrates therefor |
| 07/31/2003 | US20030144153 Drilling a wellbore in a subterranean formation comprising employing an invert emulsion based fragile gel drilling fluid |
| 07/31/2003 | US20030141065 In situ thermal processing of hydrocarbons within a relatively permeable formation |
| 07/31/2003 | US20030141064 Hydration; expansion; forming hydraulic fluids |
| 07/31/2003 | US20030141062 Well completion using superabsorbent polymer |
| 07/31/2003 | CA2418136A1 Reactive cement compositions for sealing hydrocarbon containing subterranean zones and methods |
| 07/30/2003 | EP1331358A1 Crosslinked polymer fluids and crosslinking concentrates therefor |
| 07/30/2003 | EP1331357A1 Method of forming permeable sand screens in well bores |
| 07/30/2003 | EP0819098B1 Process for the production of cesium compounds |
| 07/30/2003 | CN1433499A Method of improving permeability of underground petroleum-containing formation |
| 07/29/2003 | US6599863 Pumping the fluid suspension downwell under fracturing conditions and forming or extending a fracture in the subterranean formation, and depositing gelled suspension in fracture; allowing gelled suspension in fracture to degrade |
| 07/29/2003 | CA2081299C Foaming agent composition and process |
| 07/24/2003 | US20030139833 Methods and apparatus for determining optimum exposure threshold for a given photolithographic model |
| 07/24/2003 | US20030139299 Solids-stabilized oil-in-water emulsion and a method for preparing same |
| 07/24/2003 | US20030139298 Compositions and methods for treating a subterranean formation |
| 07/24/2003 | US20030139297 Surfactant-polymer composition for substantially solid-free water based drilling, drill-in, and completion fluids |
| 07/24/2003 | US20030136560 Method for drilling and completing boreholes with electro-rheological fluids |
| 07/23/2003 | CN1432097A In situ recovery from hydrocarbon contg. formation |
| 07/23/2003 | CA2416964A1 Method for drilling and completing boreholes with electro-rheological fluids |
| 07/22/2003 | US6596911 Composition and method for inhibition of formation of gas hydrates |
| 07/22/2003 | US6596670 Use of at least substantially water-insoluble ethers, which are fluid and/or at least plastically deformable at working temperature and have flash points of at least 80 degrees C., of mono- and/or polyfunctional alcohols |
| 07/22/2003 | CA2257699C Fluids for fracturing subterranean formations |
| 07/17/2003 | WO2003057793A1 Solids-stabilized oil-in-water emulsion and a method for preparing same |
| 07/17/2003 | US20030135080 Homogeneous metathesis process using a higher transition group metal catalyst, especially metal-alkylidene complex such as a Grubbs catalyst |
| 07/17/2003 | US20030134944 Gypsum layered panels containing styrene butadiene latex additive |
| 07/17/2003 | US20030134751 Methods for controlling the rheological properties of viscoelastic surfactants based fluids |
| 07/17/2003 | US20030133827 Method to remove iron sulfide deposits from pipe lines |