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)
12/2013
12/04/2013CN102533242B Rapid viscosity breaker for surfactant fracturing fluid
12/04/2013CN102516964B Low-density and high-strength cement paste
12/04/2013CN102516431B Macromolecule crosslinking agent for acrylamide gel for water shutoff and preparation method thereof
12/04/2013CN102504795B Dual-function explosive pre-crosslinking gel particle for profile control and deep fluid flow diversion
12/04/2013CN102464760B Copolymer having dithio structure-containing annular groups, its preparation method and application
12/04/2013CN102453192B Preparation method of ultrahigh molecular weight sulfonic acid-type polyacrylamide
12/04/2013CN102433107B Low-molecular-weight polymer type filtrate loss reducer for drilling fluid and preparation method for same
12/04/2013CN102399545B Sand-flushing well-cleaning agent for oil well
12/04/2013CN102336862B Preparation method of cationic viscosity depressant
12/04/2013CN102321459B Oil well cement chlorine-free coagulation accelerating early strength agent
12/04/2013CN102277149B Surfactant oil displacement agent for low-permeability oil field
12/04/2013CN102277148B Composition for improving recovery ratio of crude oil and preparation method thereof
12/04/2013CN102220112B Inorganic-organic salt-resisting and high temperature-resisting polymer fluid loss additive for drilling fluid
12/04/2013CN102206484B Acidic water repellent associated matter fracturing fluid
12/04/2013CN101747880B Deep-water low-temperature low-density early-strength cementing slurry for well cementation
12/04/2013CA2817651A1 Drilling fluids useful for limiting tar sand accretion
12/04/2013CA2779190A1 Drilling fluids useful for limiting tar sand accretion
12/03/2013US8598252 Compressible and highly flexible plugging agent
12/03/2013US8598096 Precipitated weighting agents for use in wellbore fluids
12/03/2013US8598094 Methods and compostions for preventing scale and diageneous reactions in subterranean formations
12/03/2013US8598093 Cement compositions comprising latex and a nano-particle
12/03/2013US8598092 Methods of preparing degradable materials and methods of use in subterranean formations
12/03/2013US8598091 Use of seeds as a cement set retarder
12/03/2013US8598090 Invert emulsion based completion and displacement fluid and method of use
12/03/2013US8596361 Proppants and uses thereof
12/03/2013US8596360 Gravel pack carrier fluids
12/03/2013US8596358 Well treatment
12/03/2013US8596356 Method of producing synthesis gas by the underground gasification of coal from a coal seam
12/03/2013CA2748747C Surface-modifying agents for wettability modification
11/2013
11/28/2013WO2013177336A1 Settable compositions comprising cement kiln dust and rice husk ash and methods of use
11/28/2013WO2013177237A1 The use of oligo-quaternary compositions to increase scale inhibitor lifetime in a subterranean formation
11/28/2013WO2013177162A2 Recovery of hydrocarbons from hydrocarbon-containing materials
11/28/2013WO2013177146A1 Spectral analysis techniques for fluid monitoring
11/28/2013WO2013176990A1 Biomimetic adhesive compositions comprising a phenolic polymer and methods for use thereof
11/28/2013WO2013176977A1 Enhancing the conductivity of propped fractures
11/28/2013WO2013176856A1 Wellbore servicing fluids and methods of making and using same
11/28/2013WO2013176826A1 Degradable polymer and legume particulates for well treatment
11/28/2013WO2013174823A1 Surfactant composition
11/28/2013WO2013174816A1 Surfactant composition
11/28/2013WO2013174679A1 Process for water wetting oil-wet surfaces
11/28/2013US20130317135 Water shut-off system for production and/or injection wells
11/28/2013US20130316936 Volcanic ash-based drilling mud to overcome drilling challenges
11/28/2013US20130312974 Controlling hydrogen sulfide production in oilfield operations
11/28/2013US20130312971 Enhanced hydrocarbon recovery method comprising optimizing the injection of an aqueous conditioning solution
11/28/2013US20130312970 Thickening of fluids
11/28/2013US20130312969 Use of hexose oxidases to create hydrogen peroxide in aqueous well treatment fluids
11/28/2013US20130312968 Subterranean treatment fluid composition and method of treatment
11/28/2013US20130312967 Method for limiting the water or gas coning in an extraction well of a hydrocarbon fluid
11/28/2013US20130312641 Compositions Comprising Kiln Dust and Wollastonite and Methods of Use in Subterranean Formations
11/27/2013EP2665794A1 Families of scale-inhibitors having different absorption profiles and their application in oilfield
11/27/2013CN103415502A Chelating agent precursors, fluids containing them, and their use
11/27/2013CN103410486A Three-in-one composite profile control and displacement process used for oilfield deep profile control
11/27/2013CN103410474A Corrosion control method for annular space tubing and casings of oil field water injection well
11/27/2013CN103410473A Three-in-one depression and augmented injection technology
11/27/2013CN103409131A Swelled-clay shrinking agent for plug removal, and preparation method and application thereof
11/27/2013CN103409130A Multi-component acid pressure temporary plugging additive and preparation method thereof
11/27/2013CN103409129A organic amine acidizing corrosion inhibitor used for well drilling and preparation method thereof
11/27/2013CN103409128A Clean fracturing fluid with liquid thickening agent and preparation method thereof
11/27/2013CN103409127A Filtrate reducer and preparation method thereof
11/27/2013CN103409126A Betaine surfactant system improved by segmented copolymer and application of betaine surfactant system
11/27/2013CN103409125A Water-soluble quadripolymer oil-displacing agent and synthesis method thereof
11/27/2013CN103409124A Improved betaine surfactant composition system and application thereof
11/27/2013CN103409123A Application of glycine betaine surface active agent system in chemical oil displacement
11/27/2013CN103409122A Water-soluble corrosion inhibitor for resisting hydrogen sulfide
11/27/2013CN103409121A Water-soluble temporary plugging diversion agent for fracturing and preparation method thereof
11/27/2013CN103409120A Polymer nano intercalation composite plugging agent as well as preparation method and application thereof
11/27/2013CN103409119A Degradable quick plugging agent
11/27/2013CN103409118A Synthetic method of water-base drilling fluid ultra-temperature stabilizing agent
11/27/2013CN103408881A Organic/inorganic composite colloidal dispersion gel and preparation method thereof
11/27/2013CN103408721A High polymer chemistry coal and rock mass reinforcer for coal mines
11/27/2013CN103408703A Liquid polymeric microspheres and synthetic method thereof
11/27/2013CN103408469A Preparation method and application of novel polymeric surfactant
11/27/2013CN102690639B Outside casing channeling-blocking agent
11/27/2013CN102660249B Oil-in-water type crude oil emulsification viscosity reducer and preparation method thereof
11/27/2013CN102604614B Anti-flow cementing slurry for well cementation
11/27/2013CN102585783B High temperature and salt resistant polymer fluid loss additive for drilling fluid and preparation method of high temperature and salt resistant polymer fluid loss additive
11/27/2013CN102432751B High-temperature colloid protecting anticaving fluid loss additive for drilling fluid and preparation method thereof
11/27/2013CN102329606B Cross-linking agent for carboxymethyl guar gum acidic fracturing fluid and preparation method thereof
11/27/2013CN102203210B Method of reducing viscosity of hydrocarbon fluids
11/27/2013CN101805418B Process for making improved aliphatic dicarboxylic acid copolymers
11/27/2013CN101585775B Clay stabilizer, preparing method and application thereof
11/26/2013US8592541 Gypsum wallboard
11/26/2013US8592354 Water based completion and displacement fluid and method of use
11/26/2013US8592353 Methods useful for diverting aqueous fluids in subterranean operations
11/26/2013US8592352 Cement compositions comprising particulate foamed elastomers and associated methods
11/26/2013US8592351 Enhancing emulsion stability
11/26/2013US8592350 Surfactant additives used to retain producibility while drilling
11/26/2013US8592349 Method to prevent salt crystal agglomeration and settling in a drilling fluid
11/26/2013CA2686508C Process and process line for the preparation of hydraulic fracturing fluid
11/21/2013WO2013173564A1 Methods for stabilizing water-sensitive clays
11/21/2013WO2013173236A1 Compositions and methods for hydraulic fracturing of natural gas and oil
11/21/2013WO2013173233A1 Dendritic surfactants and extended surfactants for drilling fluid formulations
11/21/2013WO2013172997A1 Composition for removing scale deposits
11/21/2013WO2013170492A1 Corrosion inhibitor for composite oil-gas field
11/21/2013WO2013093626A3 Amine adducts, derivatives thereof, methods for making such adducts and derivatives, and methods for using such adducts and derivatives
11/21/2013US20130310285 Treatment fluid and method
11/21/2013US20130310284 Methods for Stabilizing Water-Sensitive Clays
11/21/2013US20130310283 Curable cross-linkable compositions for use as lost circulation material
11/21/2013US20130310282 Wellbore Servicing Fluids and Methods of Making and Using Same
11/21/2013US20130306323 Composition for Removing Scale Deposits
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