| 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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| 09/01/2009 | US7582590 Subterranean treatment fluids, friction reducing copolymers, and associated methods |
| 09/01/2009 | CA2557148C Orthoester compositions and methods for reducing the viscosity of viscosified treatment fluids |
| 09/01/2009 | CA2488092C Method of formulating and using a drilling mud with fragile gels |
| 08/29/2009 | CA2656344A1 Methods and compositions for protecting steels in acidic solutions |
| 08/28/2009 | CA2627102A1 Fluid and method for agglomerating particles in a well service operation |
| 08/27/2009 | WO2009104108A1 Polymeric microspheres as degradable fluid loss additives in oilfield applications |
| 08/27/2009 | WO2009103944A1 Extended settable compositions comprising cement kiln dust and associated methods |
| 08/27/2009 | WO2009103681A1 Method for producing solid materials on the basis of synthetic polymers and/or biopolymers and use thereof |
| 08/27/2009 | WO2009103680A1 Solid, porous materials with a core-shell structure on the basis of synthetic polymers and biopolymers, method for their production and use thereof |
| 08/27/2009 | WO2009103579A1 Additive for cementing boreholes |
| 08/27/2009 | WO2009103480A1 Pumpable geopolymer formulation for oilfield application |
| 08/27/2009 | WO2009083238A4 Cement composition comprising mixture of organic and inorganic fibres for curing severe losses especially in the reservoir section |
| 08/27/2009 | WO2009083236A4 Cement compositions containing inorganic and organic fibres |
| 08/27/2009 | WO2006129121A8 Cement compositions comprising environmentally compatible defoaming agents and methods of use |
| 08/27/2009 | US20090215629 Surfactant compounds |
| 08/27/2009 | US20090211758 Method of Oil Recovery Using a Foamy Oil-External Emulsion |
| 08/27/2009 | CA2716753A1 Pumpable geopolymer formulation for oilfield application |
| 08/27/2009 | CA2715979A1 Method for producing solid materials on the basis of synthetic polymers and/or biopolymers and use thereof |
| 08/27/2009 | CA2715149A1 Polymeric microspheres as degradable fluid loss additives in oilfield applications |
| 08/27/2009 | CA2656499A1 Oil and gas well cement systems using elemental sulfur |
| 08/26/2009 | EP2093200A1 Pumpable geopolymer formulation for oilfield application |
| 08/26/2009 | EP2092971A1 Apparatus for screening drilling mud |
| 08/26/2009 | EP2092158A1 Method of cementing well bores |
| 08/26/2009 | EP2092039A2 A new coating composition for proppant and the method of making the same |
| 08/26/2009 | EP2092038A2 Scale squeeze treatment systems and methods |
| 08/26/2009 | EP1910493A4 Organosulfonyl latent acids for petroleum well acidizing |
| 08/26/2009 | EP1360260B1 Drillings fluids containing an alkali metal formate |
| 08/26/2009 | EP0840769B2 Non-toxic, inexpensive synthetic drilling fluid |
| 08/26/2009 | CN101516775A A process for the manufacture of carbon disulphide |
| 08/26/2009 | CN100532494C Clay expansion-proof agent for high temperature acidification |
| 08/26/2009 | CN100532493C Chelating oil-repellent clay stabilizer |
| 08/25/2009 | US7579302 Friction reducer performance by complexing multivalent ions in water |
| 08/25/2009 | CA2340267C Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties containing said additives |
| 08/20/2009 | WO2009102857A1 Acidizing treatment compositions and methods |
| 08/20/2009 | WO2009102610A2 System for drilling under-balanced wells |
| 08/20/2009 | WO2009101382A1 Compositions and applications of resins in treating subterranean formations |
| 08/20/2009 | WO2009101290A1 Mineral-based drilling fluid and drilling method |
| 08/20/2009 | WO2009100468A2 Surfactants, use of surfactants for crude oil recovery, removal of oil residues and separation of oil sands and oil shales |
| 08/20/2009 | WO2009067362A3 Treatment fluids that increase in viscosity at or above a threshold temperature and methods of formulating and using such fluids |
| 08/20/2009 | US20090209439 Acidizing treatment compositions and methods |
| 08/20/2009 | US20090209438 Low residue fluid fracturing system and method of use |
| 08/20/2009 | US20090205824 Polymeric Microspheres As Degradable Fluid Loss Additives In Oilfield Applications |
| 08/20/2009 | US20090205823 Process for enhancing the production of oil from depleted, fractured reservoirs using surfactants and gas pressurization |
| 08/20/2009 | US20090205821 Method and apparatus to treat well stimulation fluids In-Situ |
| 08/20/2009 | DE102008009369A1 Production of compositions of functional components such as thermoplastics, enzymes, oils or hair- or skin-care substances, involves using a n-nonyl ester as additive, e.g. as release agent or foam suppressant |
| 08/20/2009 | DE102008009368A1 Producing organic composition, useful e.g. as additive in drilling fluid, comprises mixing n-nonyl ether obtained by reacting n-nonyl alcohol-component with e.g. polyether alcohol, functional component e.g. enzyme and further additive |
| 08/20/2009 | DE102008008251A1 Vernetzte Glycerin- oder Oligoglycerinester und deren Verwendung als Additiv in Bohrspülungen Networked glycerol or oligoglycerol and their use as additives in drilling fluids |
| 08/20/2009 | DE102008008250A1 Auf organischen Aminsulfaten basierende Reinigungsmittel für Bohreinrichtungen Based on organic amine sulphate detergent for drilling equipment |
| 08/19/2009 | EP2090634A1 A method of consolidating a fracture in a formation |
| 08/19/2009 | EP2090560A1 Chemical activation for cement setting |
| 08/19/2009 | EP2089353A2 Surfactant compounds |
| 08/19/2009 | CN101511968A Dispersant coated weighting agents |
| 08/19/2009 | CN101508891A Liquid sustained-release acid breaker |
| 08/19/2009 | CN101508890A Dual-purpose agglutination sand for oil-field development |
| 08/19/2009 | CN100529011C Surface activating agent for oil-field thick-oil well |
| 08/18/2009 | US7576043 having branched aliphatic chains used as reversible well bore fluid thickeners to recover hydrocarbon oil and gas; oil soluble; soluble in both organic and aqueous fluids; high speed breakdown of viscoelastic sols |
| 08/18/2009 | US7576042 premixing latex and stabilizer to form a homogeneous solution before feeding into wellbore; anticoagulants for latex; nonylphenol ethoxylated polyethers or ethylene oxide alkylphenol adduct, or ethoxylate sulfate anionic polymers; stabilizing the sealant solution |
| 08/18/2009 | US7576041 Contacting a sulfamate stabilized, bromine-based breaker with an aqueous polysaccharide fracturing fluid; comprising bromine chloride, bromine and chlorine; reducing the viscosity of fracturing fluids in subterranean oil and gas wells |
| 08/18/2009 | US7576040 Graft polymer with humic acid salt backbone and at least four grafted monomers consisting of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid, vinylphosphonic acid, diallyldimethylammonium chloride or salts thereof; subterranean wells |
| 08/18/2009 | US7576039 comprising sulfonated asphalt, and water soluble anionic copolymers or addition-condensation copolymers; thermally stable, use in water- and/or oil-based drilling fluids in the exploration of subterraneous petroleum and natural gas deposits |
| 08/18/2009 | US7576038 Well drilling fluids |
| 08/18/2009 | US7575057 Polymeric gel system and use in hydrocarbon recovery |
| 08/18/2009 | US7575054 Self diverting matrix acid |
| 08/18/2009 | CA2452888C Friction reducing composition and method |
| 08/18/2009 | CA2408312C Composition and method for recovering hydrocarbon fluids from a subterranean reservoir |
| 08/13/2009 | WO2009100301A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | WO2009100300A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | WO2009100298A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | WO2009100228A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | WO2009100224A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | WO2009099850A2 Wellbore fluids comprising poly(trimethylene ether) glycol polymers |
| 08/13/2009 | WO2009098668A1 Use of relative permeability modifiers in treating subterranean formations |
| 08/13/2009 | WO2009098309A1 Cleaning agents based on organic amine sulfates for drilling devices |
| 08/13/2009 | WO2009098308A1 Crosslinked glycerol or oligoglycerol esters, and use thereof as an additive in drilling fluids |
| 08/13/2009 | WO2009098091A2 Impermeability rehabilitation of civil engineering structures |
| 08/13/2009 | WO2009065906A3 Method for producing an organic composition containing an n-nonyl ether |
| 08/13/2009 | WO2009027841A3 Proppants and anti-flowback additives made from sillimanite minerals, methods of manufacture, and methods of use |
| 08/13/2009 | US20090203558 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | US20090203557 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | US20090203556 Gelled hydrocarbons for oilfield processes, phosphate ester compounds useful in gellation of hydrocarbons and methods for production and use thereof |
| 08/13/2009 | US20090203555 Use of Relative Permeability Modifiers in Treating Subterranean Formations |
| 08/13/2009 | US20090203554 Well Treatment Compositions Containing Nitrate Brines and Method of Using Same |
| 08/13/2009 | US20090203553 Pumping a fracturing fluid including an acidifying agent and a surface modifying agent into a producing formation to enhance productivity at a pressure sufficient to fracture the formation and simultaneously to modify aggregation potential and zeta-potential of formation particles and formation surfaces |
| 08/13/2009 | US20090200085 System for drilling under-balanced wells |
| 08/13/2009 | US20090200033 Compositions and methods for gas well treatment |
| 08/13/2009 | US20090200015 Method and liquid for increasing the recovery factor in oil reservoirs |
| 08/13/2009 | CA2714406A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | CA2714388A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | CA2714106A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | CA2714102A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | CA2713968A1 Method and composition for enhanced hydrocarbons recovery |
| 08/13/2009 | CA2712566A1 Wellbore fluids comprising poly(trimethylene ether) glycol polymers |
| 08/12/2009 | EP2087062A1 Recovery of oil |
| 08/12/2009 | EP1799790B1 Corrosion and gas hydrate inhibitors with an increased biological degradability and a reduced toxicity |
| 08/12/2009 | CN101506260A Water-soluble and biodegradable copolymers on a polyamide basis and use thereof |
| 08/12/2009 | CN101503722A Biological polysaccharide, and production and use thereof |
| 08/12/2009 | CN101503619A Preparation of wideband retarder |
| 08/12/2009 | CN101503379A Method for synthesizing cetyl diphenyl ether sodium disulfonate and use |
| 08/12/2009 | CN101502771A Fluorocarbon gemini surfactant as well as preparation method and application thereof |
| 08/12/2009 | CN100526417C Anion worm-shaped micellar flooding system and preparation method thereof |