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)
11/2010
11/24/2010CN101891655A Method for preparing modified betaine type amphoteric surfactant used for tertiary oil recovery
11/24/2010CN101235182B Intramolecular Cr3+ cross-linked polymer gel and its preparation method
11/24/2010CN101230259B High temperature resistant anti-salt solid-free environment protection drilling and completing fluids
11/23/2010US7838469 reducing fluid loss in downhole operations such as drilling and well completion, by injecting a mixture containing a fusing solid gilsonite, dispersants, fibers, and mica flakes
11/23/2010US7838468 Acid ammonium salts of an imide of polymaleic anhydride; hydraulic fracturing fluids used in enhanced oil recovery; subterranean formations
11/23/2010US7838467 improve the removal of filter cakes formed during drilling with oil-based muds with a single phase microemulsion containing a filtration control additive for delaying the filter cake removal, destruction or conversion; comprising hematite, ilmenite, manganese oxide, starch
11/23/2010US7837746 Gas hydrate inhibitors
11/23/2010US7837412 Binder for mine tailings, alluvial sand and the like
11/23/2010US7836954 Cement compositions comprising stevia retarders
11/23/2010CA2631526C Wellbore sealant compositions containing cationic latexes and methods of using them
11/23/2010CA2465959C Copolymers useful for gelling acids
11/23/2010CA2308268C Well treatment fluid and method of manufacture
11/19/2010CA2704101A1 Bitumen anti-accretion additive
11/18/2010WO2010132851A1 Swellable polymers with hydrophobic groups
11/18/2010WO2010132362A2 Method for treating hydrocarbon-bearing formations with fluorinated polyurethanes
11/18/2010WO2010132333A2 Solvents and compositions for treating hydrocarbon-bearing formations
11/18/2010WO2010107721A3 Well treatment fluid
11/18/2010US20100292365 Latex Compositions Comprising Pozzolan and/or Cement Kiln Dust and Methods of Use
11/18/2010US20100292110 nonionic surfactant, water and methanol solvent; copolymer of acrylated polyoxyalkylene glycol and a perfluoroalkylsulfonamidoalkyl (meth)acrylate; condensate and/or water blocking issue
11/18/2010US20100292109 Swellable polymers with hydrophobic groups
11/18/2010US20100292108 Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same
11/18/2010US20100292107 Spotting fluids containing syrups
11/18/2010US20100292106 Methods of minimizing sulfate scale in oil field
11/18/2010US20100288500 Fiber aggregate
11/18/2010US20100288499 Composition and method for stimulation of oil production in sandstone formations
11/18/2010US20100288498 Fluorinated polymer compositions and methods for treating hydrocarbon-bearing formations using the same
11/18/2010CA2753522A1 Swellable polymers with hydrophobic groups
11/17/2010EP2251395A1 Methods for increase gas production and load recovery
11/17/2010EP2251394A2 Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same
11/17/2010EP2250234A1 Method and composition for enhanced hydrocarbons recovery
11/17/2010EP2250233A1 Method and composition for enhanced hydrocarbons recovery
11/17/2010EP2250232A1 Method and composition for enhanced hydrocarbons recovery
11/17/2010EP2250231A2 Wellbore fluids comprising poly(trimethylene ether) glycol polymers
11/17/2010CN101889066A Method of treating proppants and fractures in-situ with fluorinated silane
11/17/2010CN101885963A High-efficiency oil displacement agent
11/17/2010CN101885962A Oilwell cement retarder and preparation method thereof
11/17/2010CN101885961A Water plugging profile control agent
11/17/2010CN101885960A Alcohol defoaming agent used in method for recycling foams of foam drilling
11/17/2010CN101885805A Cationic polymer for increasing and/or stabilizing viscosity of hydrophobic association type polymer oil-displacing agent
11/17/2010CN101885804A Method for preparing cationic polymer for increasing and/or stabilizing viscosity of hydrophobic association type polymer oil-displacing agent
11/17/2010CN101885803A Application of cationic polymer
11/17/2010CN101884886A Phenylene-bi(N-alkyl) sodium amido-carboxylate surfactant and synthesis method thereof
11/16/2010US7833950 using fibers ( polylactic acid, polyglycolic acid or copolymer) to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids (e.g. carboxymethylhydroxypropyl guar, crosslinked with a zirconate) otherwise having insufficient viscosity to prevent particulate settling
11/16/2010US7833949 Hydraulic fracturing, well cleanup, gravel packing; improved rheology for proppant suspension, transport properties; a diutan heteropolysaccharide having a tetrasaccharide backbone, a diutan reactive peroxide breake (urea peroxide), FeSO4 catalyst, iron impurity control agent (edta), electrolyte (KCl)
11/16/2010US7833948 treating a subterranean formation with an injection liquid containing liquid CO2, a treating liquid selected from an inorganic acid (HCl, HBr), an organic acid (citric acid, acetic acid), an organic solvent, a scale inhibitor and a corrosion inhibitor, optionally foaming agent and/or methanol
11/16/2010US7833947 providing a fluid comprising a carrier fluid and at least two different sizes of solid particulate, pumping the fluid into the wellbore to treat the formation, allowing the first chemical component to be released by the downhole trigger
11/16/2010US7833946 Water-based drilling fluid
11/16/2010US7833945 Treatment fluids with improved shale inhibition and methods of use in subterranean operations
11/16/2010US7833944 drilling a well bore in a subterranean formation, using a treatment fluid containing a base fluid, a viscosifier, a fluid loss control additive, and a degradable bridging agent such as, an aliphatic polyester ( crosslinked polylactic acid); reduced fluid loss
11/16/2010US7833943 mixing zwitterionic surfactant( laurylamindopropyl betaines or sultaine or alkylamine oxide) a co-surfactant( alkyl alcohol e.g butanol), and water to form a microemulsifier, contacting the microemulsifier with an oleaginous fluid under low shear conditions to form a microemulsion for well bore servicing
11/16/2010CA2411696C Oil-based drilling fluid comprising a temperature-stable and non-polluting emulsifying system
11/16/2010CA2352104C Invertible emulsions stabilised by amphiphilic polymers and application to bore fluids
11/12/2010CA2703460A1 Methods for increase gas production and load recovery
11/11/2010WO2010129831A2 Gravel pack carrier fluids
11/11/2010WO2010129425A2 Methods of using viscoelastic surfactant gelled fluids to pre-saturate underground formations
11/11/2010WO2010129051A1 Sulfonated internal olefin surfactant for enhanced oil recovery
11/11/2010WO2010128271A1 Methods of consolidating particulates using a hardenable resin and an organosilane coupling agent
11/11/2010WO2010128270A2 Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods
11/11/2010WO2009129449A3 Methods of treating a hydrocarbon containing formation
11/11/2010US20100286000 Nano-Sized Particle-Coated Proppants for Formation Fines Fixation in Proppant Packs
11/11/2010US20100285999 Treatment fluids for reduction of water blocks, Oil blocks, and/or gas condensates and associated methods
11/11/2010US20100285998 Polyamide beads and method for the production thereof
11/11/2010US20100282468 Fracturing fluid compositions comprising solid epoxy particles and methods of use
11/11/2010US20100282467 Sulfonated internal olefin surfactant for enhanced oil recovery
11/11/2010US20100282465 Methods of consolidating particulates using a hardenable resin and an orgaosilane coupling agent
11/11/2010CA2761006A1 Corrosion inhibitor
11/11/2010CA2760789A1 Sulfonated internal olefin surfactant for enhanced oil recovery
11/11/2010CA2760235A1 Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods
11/10/2010EP2248867A1 Additive for increasing the density of a fluid for casing annulus pressure control
11/10/2010EP2247702A2 Degradable non-aqueous gel systems
11/10/2010EP2247689A1 Additive for cementing boreholes
11/10/2010EP2247688A2 Emulsifier free oil-based wellbore fluid
11/10/2010EP2247687A1 Compositions and methods of treating high temperature subterranean formations
11/10/2010EP2247652A1 Method for producing solid materials on the basis of synthetic polymers and/or biopolymers and use thereof
11/10/2010EP2247628A1 Improved method for producing comb polymers by adding an antioxidant, resulting polymers and uses thereof
11/10/2010EP2121775B1 Process and polymer for preventing ba/sr scale with detectable phosphorus functionality
11/10/2010CN1777735B Method and composition for enhanced hydrocarbons recovery
11/10/2010CN101883626A 乳化剂共混物 Emulsifier blends
11/10/2010CN101880630A Method for increasing oil recovery ratio by utilizing symbiotic reproduction and complex metabolism and microbial preparation
11/10/2010CN101880524A Ultra-low-density ceramic proppant and preparation method thereof
11/10/2010CN101880523A Enzyme-microbe coupled fracturing fluid system and preparation method and applications thereof
11/10/2010CN101880522A Novel inorganic-organic ternary composite plugging agent for oil extraction and preparation method
11/10/2010CN101880354A High molecular emulsion polymer and preparation method thereof
11/10/2010CN101362938B Drilling shaft lining stabilizer
11/09/2010US7829510 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
11/09/2010US7829509 Annular fluids and method of emplacing the same
11/09/2010US7829508 Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures
11/09/2010US7829507 drilling a well bore in a subterranean formation, using a treatment fluid containing a base fluid, a viscosifier, a fluid loss control additive, and a degradable bridging agent such as, polysaccharide, a chitin, a chitosan, a protein, a polyester, a poly(glycolide), a poly( lactide), polycarbonate etc.
11/09/2010US7829506 Drilling fluid comprising an aqueous base fluid, a viscosifying biopolymer (cellulose/anionic/); a starch (potato or corn), and a chloride-free, amine-containing clay stabilizer(1,6-hexamine formate); effective to provide fluid with clay swelling of < 5% and shale disintegration of < 5%; oil/gas
11/09/2010CA2462087C Method for the recovery of hydrocarbons from hydrates
11/09/2010CA2442649C Methods of introducing treating fluids into subterranean producing zones
11/04/2010WO2010126925A2 Wellbore fluids employing sacrificial viscosifiers
11/04/2010WO2010125327A1 Method of selecting a wellbore cement having desirable characteristics
11/04/2010WO2010124769A1 Compositions and methods for servicing subterranean wells
11/04/2010WO2010103245A3 Hydrodewaxed hydrocarbon fluid used in the manufacture of fluids for industrial, agricultural, or domestic use
11/04/2010WO2009129442A3 Method for recovery of hydrocarbons from a subsurface hydrocarbon containing formation
11/04/2010US20100276152 Acidic aqueous solution containing a chelating agent and the use thereof
11/04/2010CA2759309A1 Compositions and methods for servicing subterranean wells
11/03/2010EP2246408A2 Method and composition for the triggered release of polymer-degrading agents for oil field use
11/03/2010EP2246407A1 2-Hydroxy-3-alkoxypropyl sulfides, sulfones, and sulfoxides: new surface active agents