| 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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| 12/04/2008 | US20080300153 Use of Nano-Sized Clay Minerals in Viscoelastic Surfactant Fluids |
| 12/04/2008 | US20080300152 reusing a viscosified treatment fluid such as drilling fluids comprising the reaction product of a gelling agent and a boronic acid-containing crosslinking agent such as 1,6-bis(o-boronobenzyl)hexanediamine involves adjusting the pH |
| 12/04/2008 | US20080300151 Oil-well cement fluid loss additive compostion |
| 12/04/2008 | US20080300150 Methods of using polysaccharide based cement additives |
| 12/04/2008 | US20080300149 Polysaccharide based cement additives |
| 12/04/2008 | US20080296222 Enhanced Slurrification Method |
| 12/04/2008 | CA2689185A1 Method of well cementing |
| 12/04/2008 | CA2689177A1 Method of cementing aluminium objects |
| 12/04/2008 | CA2687877A1 Use of wax in oil-based drilling fluid |
| 12/03/2008 | EP1997863A1 Viscosified fluids for remediating subterranean damage |
| 12/03/2008 | EP1997838A2 Acrylic copolymer partially or fully water-soluble, cross-linked or not and use thereof |
| 12/03/2008 | EP1997792A2 Foamed well fluid compositions and methods for use in subterranean zones |
| 12/03/2008 | EP1996745A1 A method for dissolving oilfield scale |
| 12/03/2008 | EP1996669A1 Additive for preserving the fluidity of fluids containing gas hydrates |
| 12/03/2008 | EP1945734A4 Polycationic viscoelastic compositions |
| 12/03/2008 | EP1358233B1 Polymeric fluid loss additives and method of use thereof |
| 12/03/2008 | CN101316912A Method and composition of preparing polymeric fracturing fluids |
| 12/03/2008 | CN101314713A Controllable-viscosity acid liquor system for carbonatite container horizon acid fracturing |
| 12/03/2008 | CN101314712A Microsphere oil displacement profile control agent, displacement of reservoir oil system and displacement of reservoir oil method |
| 12/03/2008 | CN101314711A Elastic particle oil displacement profile control agent, displacement of reservoir oil system and displacement of reservoir oil method |
| 12/03/2008 | CN101314710A Oil displacement profile control agent, displacement of reservoir oil system and displacement of reservoir oil method |
| 12/03/2008 | CN101314671A Temperature control liquid expanded rubber and preparation method thereof |
| 12/03/2008 | CN101313681A Ecological regulating and controlling method for sulfate reducing bacteria liveness in surface water of oil field, and used restrainer thereof |
| 12/02/2008 | US7459019 Cement compositions for high temperature applications |
| 12/01/2008 | CA2591354A1 An in situ extraction process for the recovery of hydrocarbons |
| 11/27/2008 | WO2008144238A1 Reducing flow-back in well treating materials |
| 11/27/2008 | WO2007135323A3 Use of composite materials based on carbon nanotubes as thickening agents for aqueous solutions |
| 11/27/2008 | US20080293597 Method for inhibiting hydrate formation |
| 11/27/2008 | CA2685193A1 Reducing flow-back in well treating materials |
| 11/26/2008 | EP1994116A1 Method for treating wells by small-size additive-containing emulsions |
| 11/26/2008 | EP1994115A2 Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties |
| 11/26/2008 | EP1789650B1 Methods for controlling fluid loss |
| 11/26/2008 | CN101311243A Temporary blocking agent for hydrocarbon reservoir crack |
| 11/26/2008 | CN101311242A Hydroxy-acid salt drilling fluid |
| 11/26/2008 | CN101311241A Glucoheptonate drilling fluid |
| 11/26/2008 | CN101311240A Glucoheptonate restraining agent for drilling fluid and method for preparing same |
| 11/26/2008 | CN101310844A Method for configuring weighted drilling fluid |
| 11/26/2008 | CN100436564C Temperature-resistant viscosity-reducing agent for boring fluid |
| 11/25/2008 | US7456135 Methods of drilling using flat rheology drilling fluids |
| 11/25/2008 | US7455111 Water in oil emulsion and organophosphate dispersant increase permeability; unwanted particles deposited in the formation are dissolved or loosened by the outer phase of the water-in-oil emulsion; displacement of oil base drilling muds; removal of asphaltenes, paraffins, scale, heavy crude, and pipe dope |
| 11/25/2008 | US7455109 Water flooding method |
| 11/25/2008 | CA2353828C Anionic cellulose ethers having temperature-dependent associative properties |
| 11/25/2008 | CA2291245C Improved polymer expansion for oil and gas recovery |
| 11/20/2008 | WO2008141051A1 Systems and methods for producing oil and/or gas |
| 11/20/2008 | WO2008141039A1 Increasing buoyancy of well treating materials |
| 11/20/2008 | WO2008140729A1 Polysaccharide based scale inhibitor |
| 11/20/2008 | WO2008139395A1 Well treatment with ionic polymer gels |
| 11/20/2008 | WO2008139394A1 Well treatment with complexed metal crosslinkers |
| 11/20/2008 | WO2008139164A1 Methods for stimulating oil or gas production |
| 11/20/2008 | WO2008139140A1 Well treatment compositions and methods utilizing nano-particles |
| 11/20/2008 | WO2008138957A2 System for drilling a wellbore |
| 11/20/2008 | WO2008114192A3 Method of treating subterranean formation with crosslinked polymer fluid |
| 11/20/2008 | WO2008096164A3 Treatment fluids comprising diutan and associated methods |
| 11/20/2008 | WO2007111789A3 Composition and method for producing a pumpable hydrocarbon hydrate slurry at high water-cut |
| 11/20/2008 | US20080287325 Novel borozirconate systems in completion systems |
| 11/20/2008 | US20080287324 Process for well cleaning |
| 11/20/2008 | US20080287323 Treatment and Reuse of Oilfield Produced Water |
| 11/20/2008 | CA2829559A1 Phenol-formaldehyde novolac resin having low concentration of free phenol |
| 11/20/2008 | CA2686779A1 Well treatment with complexed metal crosslinkers |
| 11/20/2008 | CA2686386A1 System for drilling a wellbore |
| 11/20/2008 | CA2685839A1 Increasing buoyancy of well treating materials |
| 11/20/2008 | CA2685832A1 Polysaccharide based scale inhibitor |
| 11/19/2008 | EP1991718A1 Corrosion inhibitors |
| 11/19/2008 | EP1991635A1 Organic acid compositions and methods of use in subterranean operations |
| 11/19/2008 | EP1991634A1 Diverting compositions, fluid loss control pills, and breakers thereof |
| 11/19/2008 | EP1991633A1 Wellbore fluid comprising a base fluid and a particulate bridging agent |
| 11/19/2008 | EP1356009B1 Spotting fluid for differential sticking |
| 11/19/2008 | EP1196134B1 Water soluble polymer composition and method of use |
| 11/19/2008 | CN101307224A High-temperature resistant water-based insulating liquid |
| 11/18/2008 | US7454322 Method for modeling hydrocarbon degradation in an oil deposit |
| 11/18/2008 | US7452849 Silicone resin for drilling fluid loss control |
| 11/18/2008 | US7452848 Amine-based gas hydrate inhibitors |
| 11/16/2008 | CA2639411A1 Treatment and reuse of oilfield produced water |
| 11/13/2008 | WO2008115097A3 Proppant and production method thereof |
| 11/13/2008 | WO2008113975A3 Particulate flow enhancing additives and associated methods |
| 11/13/2008 | US20080281000 Crosslinked gels; polysaccharides grafted with alkoxyether amides; used in hydraulic fracturing of oil wells and as dispersants in paint and dye industeries; cosmetics; drug delivery carriers |
| 11/13/2008 | US20080280790 Treating subterranean formations with oilfield stimulation compositions using polymer viscosified fluid crosslinked with metal complexes with amino or phosphonic acids to provide increased crosslinking temperature and low pH sensitivity; can be used with borate crosslinkers for continuous viscosification |
| 11/13/2008 | US20080280789 Providing treatment fluid comprising water, a chelating agent capable of forming a heterocyclic ring that contains a metal ion attached to at least two nonmetal ions, and a viscosity-increasing agent and introducing treatment fluid into wellbore tubular or subsurface completion equipment |
| 11/13/2008 | US20080280788 Injection, crosslinking and gelation of anionic or cationic guar with a borate; in a low-ionic-strength fluid system without sacrificing gel strength or thermal persistence of metal crosslinked gels; charge screening surfactant; carboxymethylhydroxyethyl guar or carboxymethylhydroxypropyl guar |
| 11/13/2008 | US20080280786 Defoamer/antifoamer compositions and methods of using same |
| 11/13/2008 | US20080279985 Enzymes having glycosidase activity and methods of use thereof |
| 11/13/2008 | US20080277620 Adding a biodegradable depolymerized carboxyalkyl polysaccharide; inhibiting Barium sulfate and Calcium carbonate formation in a gas/oil well |
| 11/12/2008 | EP1989273A2 High temperature filtration control using water based drilling fluid systems comprising water soluble polymers |
| 11/12/2008 | CN101305070A Settable compositions comprising cement kiln dust and additive(s) and method of using them |
| 11/12/2008 | CN101305069A Methods of using settable compositions comprising cement kiln dust |
| 11/12/2008 | CN101305068A Foamed settable compositions comprising cement kiln dust, and methods of using them |
| 11/12/2008 | CN101305067A Composition and method for thickening heavy aqueous brines |
| 11/12/2008 | CN101302266A Water-soluble micro-crosslinked copolymer, preparation and use thereof |
| 11/12/2008 | CN100432180C Densifier for aqueous breakdown fluid and its production method |
| 11/11/2008 | US7449431 Well bore fluid mixture of oil additive, solid colloidal particles coated with dispersants; barite coated with stearyl methacrylate, butyl acrylate; suspnesion stability; drilling fluids |
| 11/11/2008 | US7449430 Aqueous phase containing an oil soluble unsubstituted styrene-acrylate copolymer or an unsubstituted styrene-butadiene copolymer in the form of a gel as a fluid loss reducer; pH controller; viscosifier; a salt; emulsifier; weighting agent; optional starch, cellulose or carboxymethyl cellulose |
| 11/11/2008 | US7449429 System for treating petroleum and petrochemical slop oil and sludge wastes |
| 11/11/2008 | US7448450 Comprises chabazite; well bores |
| 11/06/2008 | WO2008134332A1 In situ microemulsions used as spacer fluids |
| 11/06/2008 | WO2008131540A1 Control of particulate entrainment by fluids |
| 11/06/2008 | WO2008088449A3 A new coating composition for proppant and the method of making the same |
| 11/06/2008 | US20080274918 With excess of oil or water; during hydrocarbon recovering after drilling; formed from polar phase, nonpolar phase, flow control agent and surfactant; removing oil-based muds or synthetic muds from well bores |
| 11/06/2008 | US20080271888 Methods of Using Viscoelastic Surfactant Gelled Fluids to Pre-Saturate Underground Formations |
| 11/06/2008 | CA2848264A1 Control of particulate entrainment by fluids |
| 11/06/2008 | CA2684966A1 Control of particulate entrainment by fluids |