| 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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| 08/12/2009 | CN100526416C Thick oil emulsion viscosity-reducing agent and preparation method thereof |
| 08/12/2009 | CN100526415C Phase permeability modifying agent and method for improving recovery efficiency of crude oil by using same |
| 08/12/2009 | CN100526414C Filtrate reducer for oil field well drilling fluid |
| 08/11/2009 | US7572757 Method of treating a well with a gel stabilizer |
| 08/11/2009 | US7572756 Water-base drilling fluid for drilling, cementing, workover, fracturing subterranean wells; using an amine compound containing ether groups; antiswelling agent |
| 08/11/2009 | US7572755 Drilling fluid comprising a vinyl neodecanoate polymer and method for enhanced suspension |
| 08/11/2009 | CA2653373A1 Compositions and methods for gas and oil well treatment |
| 08/11/2009 | CA2521007C Particulate material containing thermoplastic elastomer and methods for making and using same |
| 08/11/2009 | CA2469898C Well cementing compositions for cold environment |
| 08/11/2009 | CA2439364C Compositions and methods to control fluid loss in surfactant-based wellbore service fluids |
| 08/11/2009 | CA2401150C Foaming agents for use in coal seam reservoirs |
| 08/08/2009 | CA2653010A1 Gelled hydrocarbons for oilfield processes, phosphate ester compounds useful in gellation of hydrocarbons and methods for production and use thereof |
| 08/06/2009 | WO2009097473A1 Method for enhanced recovery of oil from oil reservoirs |
| 08/06/2009 | WO2009097286A1 Compositions and methods of treating high temperature subterranean formations |
| 08/06/2009 | US20090197781 Wellbore Fluids Comprising Poly(trimethylene ether) glycol Polymers |
| 08/06/2009 | US20090197780 Ultrafine Grinding of Soft Materials |
| 08/06/2009 | US20090197779 Method for enhanced recovery of oil from oil reservoirs |
| 08/06/2009 | US20090194283 Chemical Activation for Cement Setting |
| 08/06/2009 | CA2712568A1 Method for enhanced recovery of oil from oil reservoirs |
| 08/06/2009 | CA2653099A1 Enhanced oil recovery in oxygen based in situ combustion using foaming agents |
| 08/05/2009 | EP2085449A1 Cement composition comprising mixture of organic and inorganic fibres for curing severe losses especially in the reservoir section |
| 08/05/2009 | EP2085448A1 Visco-elastic surfactant spacers |
| 08/05/2009 | EP2085447A1 Method and composition for curing lost circulation |
| 08/05/2009 | EP2085424A1 Stabilized aqueous polymer compositions |
| 08/05/2009 | EP2084139A2 Oxazolidinium compounds and use as hydrate inhibitors |
| 08/05/2009 | EP2035651A4 Method for fabricating compressible objects for a variable density drilling mud |
| 08/05/2009 | EP1636142B1 Tagged scale inhibiting polymers, compositions comprising the same, and method for preventing or controlling scale formation |
| 08/05/2009 | CN101501159A Improved high performance water-based drilling fluid |
| 08/05/2009 | CN101500951A Method of scale inhibition |
| 08/05/2009 | CN100523118C Re-use agent for polymer after driving and injecting method thereof |
| 08/05/2009 | CN100523117C Use of bi-alkyl carboxylate surface activator in triple oil recovery |
| 08/04/2009 | US7569523 Method and materials for hydraulic fracturing of wells using a liquid degradable thermoplastic polymer |
| 08/04/2009 | US7569522 Hydraulic fracturing, well cleanup, gravel packing; improved rheology for proppant suspension, transport properties; stability against phase separation at high temperatures; a gas, a heteropolysaccharide having a tetrasaccharide backbone, an electrolyte (KCl), a surfactant, and an oligoethyleneoligoamine |
| 08/04/2009 | CA2652489A1 Low residue fluid fracturing system and method of use |
| 08/04/2009 | CA2635989C Fracturing fluid compositions, methods of preparation and methods of use |
| 08/04/2009 | CA2546765C Structured composite compositions for treatment of subterranean wells |
| 08/04/2009 | CA2268734C Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids |
| 07/30/2009 | WO2009094662A2 Method for treating oil and gas wells |
| 07/30/2009 | WO2009094425A2 Emulsifier free oil-based wellbore fluid |
| 07/30/2009 | WO2009094056A1 Method for treating oil and gas wells |
| 07/30/2009 | WO2009093196A1 Method for single-stage treatment of siliceous subterranean formations |
| 07/30/2009 | WO2009093195A1 Method for single-stage treatment of siliceous subterranean formations |
| 07/30/2009 | WO2009093006A1 Self repairing cement compositions and methods of using same |
| 07/30/2009 | WO2009092999A1 Additives for high alumina cements and associated methods |
| 07/30/2009 | WO2009079092A3 Nano-sized particles for formation fines fixation |
| 07/30/2009 | WO2009055200A3 Downhole spectroscopic hydrogen sulfide detection |
| 07/30/2009 | US20090192058 Compositions and methods of treating high temperature subterranean formations |
| 07/30/2009 | US20090192057 Method for Single-Stage Treatment of Siliceous Subterranean Formations |
| 07/30/2009 | US20090192056 Friction Loss Reduction in Viscoelastic Surfactant Fracturing Fluids Using Low Molecular Weight Water-Soluble Polymers |
| 07/30/2009 | US20090192055 Stabilized aqueous polymer compositions |
| 07/30/2009 | US20090192054 Method for Single-Stage Treatment of Siliceous Subterranean Formations |
| 07/30/2009 | US20090192053 Methods and Compositions for Delayed Release of Chemicals and Particles |
| 07/30/2009 | US20090192052 High Performance Drilling Fluids with Submicron-Size Particles as the Weighting Agent |
| 07/30/2009 | US20090192051 High temperature stabilizer for well treatment fluids and methods of using same |
| 07/30/2009 | US20090191325 Surface active ingredient composition |
| 07/30/2009 | US20090188721 Membrane method of making drilling fluids containing microbubbles |
| 07/30/2009 | US20090188670 A salt comprising an acidic salt, a neutral salt, and/or a low basicity salt and a swellable clay volume increase; shsrinkage inhibition; volulme measured at atmospheric pressure of between 10-20% over volume of slurry; subterranean formations; oil wells; well bores |
| 07/30/2009 | US20090188639 Use of water-soluble polymer complexes in aqueous systems |
| 07/30/2009 | CA2713238A1 Method for treating oil and gas wells |
| 07/30/2009 | CA2711905A1 Method for single-stage treatment of siliceous subterranean formations |
| 07/29/2009 | EP2083059A1 Cement compositions containing inorganic and organic fibres |
| 07/29/2009 | EP1888876A4 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 07/29/2009 | EP1874890A4 Microemulsion containing oilfield chemicals useful for oil and gas field applications |
| 07/29/2009 | EP1819898A4 Method and apparatus for preventing slug flow in pipelines |
| 07/29/2009 | CN101495595A Oxidized guar for oilfield servicing fluids |
| 07/29/2009 | CN101495594A Functionalized clay compositions for aqueous based drilling fluids |
| 07/29/2009 | CN101495593A Mixture for improved foaming in the extraction of petroleum or natural gas |
| 07/29/2009 | CN101492600A Shielding diverting agent for drilling fluids |
| 07/29/2009 | CN101492599A Foaming water discharge agent and its preparation |
| 07/29/2009 | CN100519688C Channeling-preventing agent for extra-low permeation oil accumuiation carbonic anhydride oil displacement and application thereof |
| 07/29/2009 | CN100519687C Preparation of high temperature resistant lubricant for drilling liquid by animal plant oil |
| 07/28/2009 | US7566686 Providing a water-based drilling fluid comprising an effective amount of a choline salt, foamer, and water; circulating the drilling fluid through the wellbore hole during drilling, and injecting a gas into wellbore hole to reduce hydrostatic pressure of the drilling fluid |
| 07/28/2009 | CA2468741C Acid soluble, high fluid loss pill for lost circulation |
| 07/23/2009 | WO2009091652A2 Methods for preventing or remediating xanthan deposition |
| 07/23/2009 | WO2009091592A1 Latex binders, aqueous coatings and paints having freeze-thaw stability and methods for using same |
| 07/23/2009 | WO2009091511A1 Non-sphrical well treating particulates and methods of using the same |
| 07/23/2009 | WO2009090471A1 Improved method for producing comb polymers by adding an antioxidant, resulting polymers and uses thereof |
| 07/23/2009 | WO2009090371A1 Drilling fluids comprising sub-micron precipitated barite as a component of the weighting agent and associated methods |
| 07/23/2009 | WO2009073411A3 Emulsifier blend |
| 07/23/2009 | WO2009040762A3 Drilling and fracturing fluid |
| 07/23/2009 | WO2009029498A3 Methods for improved hydrocarbon and water compatibility |
| 07/23/2009 | US20090186782 Mixed demulsifier of asp flooding produced liquid |
| 07/23/2009 | US20090186781 Drilling fluids comprising sub-micron precipitated barite as a component of the weighting agent and associated methods |
| 07/23/2009 | CA2714170A1 Methods for preventing or remediating xanthan deposition |
| 07/23/2009 | CA2711915A1 Latex binders, aqueous coatings and paints having freeze-thaw stability and methods for using same |
| 07/23/2009 | CA2710580A1 Improvement of a method of manufacturing comb polymers by adding an antioxidant, polymers obtained, and applications thereof |
| 07/22/2009 | CN101486896A Drilling fluid lubricating agent |
| 07/22/2009 | CN100516454C Method of controlling asphaltene precipitation in a fluid |
| 07/22/2009 | CN100516164C High-temperature high-salt resistant nano emulsion viscosity-reducing agent |
| 07/22/2009 | CN100516163C High temperature resistant circulating micro-foam drilling fluid or completion fluid |
| 07/21/2009 | US7563750 Methods and compositions for the diversion of aqueous injection fluids in injection operations |
| 07/21/2009 | CA2513066C Annular fluids and methods of emplacing the same |
| 07/16/2009 | WO2009089391A2 Graphene compositons and drilling fluids derived therefrom |
| 07/16/2009 | WO2009089267A2 Viscoelastic surfactant based wellbore fluids and methods of use |
| 07/16/2009 | WO2009089232A2 Particles in oil for viscoelastic surfactant gelled fluids |
| 07/16/2009 | WO2009088702A1 Corrosion inhibitors for oilfield applications |
| 07/16/2009 | WO2009088319A1 Magnetic polymer granules and a method for forming a locking gel plug |
| 07/16/2009 | WO2009088318A1 Magnetic polymer granules and a method for the use thereof |
| 07/16/2009 | WO2009088317A1 Elongated particles for fracturing and gravel packing |
| 07/16/2009 | WO2009088316A1 Biocide for liquid media used in production of hydrocarbons and transportation of oil and oil products |