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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11/24/2010 | CN101891655A Method for preparing modified betaine type amphoteric surfactant used for tertiary oil recovery |
11/24/2010 | CN101235182B Intramolecular Cr3+ cross-linked polymer gel and its preparation method |
11/24/2010 | CN101230259B High temperature resistant anti-salt solid-free environment protection drilling and completing fluids |
11/23/2010 | US7838469 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 |
11/23/2010 | US7838468 Acid ammonium salts of an imide of polymaleic anhydride; hydraulic fracturing fluids used in enhanced oil recovery; subterranean formations |
11/23/2010 | US7838467 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 |
11/23/2010 | US7837746 Gas hydrate inhibitors |
11/23/2010 | US7837412 Binder for mine tailings, alluvial sand and the like |
11/23/2010 | US7836954 Cement compositions comprising stevia retarders |
11/23/2010 | CA2631526C Wellbore sealant compositions containing cationic latexes and methods of using them |
11/23/2010 | CA2465959C Copolymers useful for gelling acids |
11/23/2010 | CA2308268C Well treatment fluid and method of manufacture |
11/19/2010 | CA2704101A1 Bitumen anti-accretion additive |
11/18/2010 | WO2010132851A1 Swellable polymers with hydrophobic groups |
11/18/2010 | WO2010132362A2 Method for treating hydrocarbon-bearing formations with fluorinated polyurethanes |
11/18/2010 | WO2010132333A2 Solvents and compositions for treating hydrocarbon-bearing formations |
11/18/2010 | WO2010107721A3 Well treatment fluid |
11/18/2010 | US20100292365 Latex Compositions Comprising Pozzolan and/or Cement Kiln Dust and Methods of Use |
11/18/2010 | US20100292110 nonionic surfactant, water and methanol solvent; copolymer of acrylated polyoxyalkylene glycol and a perfluoroalkylsulfonamidoalkyl (meth)acrylate; condensate and/or water blocking issue |
11/18/2010 | US20100292109 Swellable polymers with hydrophobic groups |
11/18/2010 | US20100292108 Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same |
11/18/2010 | US20100292107 Spotting fluids containing syrups |
11/18/2010 | US20100292106 Methods of minimizing sulfate scale in oil field |
11/18/2010 | US20100288500 Fiber aggregate |
11/18/2010 | US20100288499 Composition and method for stimulation of oil production in sandstone formations |
11/18/2010 | US20100288498 Fluorinated polymer compositions and methods for treating hydrocarbon-bearing formations using the same |
11/18/2010 | CA2753522A1 Swellable polymers with hydrophobic groups |
11/17/2010 | EP2251395A1 Methods for increase gas production and load recovery |
11/17/2010 | EP2251394A2 Aggregating compositions, modified particulate metal-oxides, modified formation surfaces, and methods for making and using same |
11/17/2010 | EP2250234A1 Method and composition for enhanced hydrocarbons recovery |
11/17/2010 | EP2250233A1 Method and composition for enhanced hydrocarbons recovery |
11/17/2010 | EP2250232A1 Method and composition for enhanced hydrocarbons recovery |
11/17/2010 | EP2250231A2 Wellbore fluids comprising poly(trimethylene ether) glycol polymers |
11/17/2010 | CN101889066A Method of treating proppants and fractures in-situ with fluorinated silane |
11/17/2010 | CN101885963A High-efficiency oil displacement agent |
11/17/2010 | CN101885962A Oilwell cement retarder and preparation method thereof |
11/17/2010 | CN101885961A Water plugging profile control agent |
11/17/2010 | CN101885960A Alcohol defoaming agent used in method for recycling foams of foam drilling |
11/17/2010 | CN101885805A Cationic polymer for increasing and/or stabilizing viscosity of hydrophobic association type polymer oil-displacing agent |
11/17/2010 | CN101885804A Method for preparing cationic polymer for increasing and/or stabilizing viscosity of hydrophobic association type polymer oil-displacing agent |
11/17/2010 | CN101885803A Application of cationic polymer |
11/17/2010 | CN101884886A Phenylene-bi(N-alkyl) sodium amido-carboxylate surfactant and synthesis method thereof |
11/16/2010 | US7833950 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 |
11/16/2010 | US7833949 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) |
11/16/2010 | US7833948 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 |
11/16/2010 | US7833947 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 |
11/16/2010 | US7833946 Water-based drilling fluid |
11/16/2010 | US7833945 Treatment fluids with improved shale inhibition and methods of use in subterranean operations |
11/16/2010 | US7833944 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 |
11/16/2010 | US7833943 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 |
11/16/2010 | CA2411696C Oil-based drilling fluid comprising a temperature-stable and non-polluting emulsifying system |
11/16/2010 | CA2352104C Invertible emulsions stabilised by amphiphilic polymers and application to bore fluids |
11/12/2010 | CA2703460A1 Methods for increase gas production and load recovery |
11/11/2010 | WO2010129831A2 Gravel pack carrier fluids |
11/11/2010 | WO2010129425A2 Methods of using viscoelastic surfactant gelled fluids to pre-saturate underground formations |
11/11/2010 | WO2010129051A1 Sulfonated internal olefin surfactant for enhanced oil recovery |
11/11/2010 | WO2010128271A1 Methods of consolidating particulates using a hardenable resin and an organosilane coupling agent |
11/11/2010 | WO2010128270A2 Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods |
11/11/2010 | WO2009129449A3 Methods of treating a hydrocarbon containing formation |
11/11/2010 | US20100286000 Nano-Sized Particle-Coated Proppants for Formation Fines Fixation in Proppant Packs |
11/11/2010 | US20100285999 Treatment fluids for reduction of water blocks, Oil blocks, and/or gas condensates and associated methods |
11/11/2010 | US20100285998 Polyamide beads and method for the production thereof |
11/11/2010 | US20100282468 Fracturing fluid compositions comprising solid epoxy particles and methods of use |
11/11/2010 | US20100282467 Sulfonated internal olefin surfactant for enhanced oil recovery |
11/11/2010 | US20100282465 Methods of consolidating particulates using a hardenable resin and an orgaosilane coupling agent |
11/11/2010 | CA2761006A1 Corrosion inhibitor |
11/11/2010 | CA2760789A1 Sulfonated internal olefin surfactant for enhanced oil recovery |
11/11/2010 | CA2760235A1 Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods |
11/10/2010 | EP2248867A1 Additive for increasing the density of a fluid for casing annulus pressure control |
11/10/2010 | EP2247702A2 Degradable non-aqueous gel systems |
11/10/2010 | EP2247689A1 Additive for cementing boreholes |
11/10/2010 | EP2247688A2 Emulsifier free oil-based wellbore fluid |
11/10/2010 | EP2247687A1 Compositions and methods of treating high temperature subterranean formations |
11/10/2010 | EP2247652A1 Method for producing solid materials on the basis of synthetic polymers and/or biopolymers and use thereof |
11/10/2010 | EP2247628A1 Improved method for producing comb polymers by adding an antioxidant, resulting polymers and uses thereof |
11/10/2010 | EP2121775B1 Process and polymer for preventing ba/sr scale with detectable phosphorus functionality |
11/10/2010 | CN1777735B Method and composition for enhanced hydrocarbons recovery |
11/10/2010 | CN101883626A 乳化剂共混物 Emulsifier blends |
11/10/2010 | CN101880630A Method for increasing oil recovery ratio by utilizing symbiotic reproduction and complex metabolism and microbial preparation |
11/10/2010 | CN101880524A Ultra-low-density ceramic proppant and preparation method thereof |
11/10/2010 | CN101880523A Enzyme-microbe coupled fracturing fluid system and preparation method and applications thereof |
11/10/2010 | CN101880522A Novel inorganic-organic ternary composite plugging agent for oil extraction and preparation method |
11/10/2010 | CN101880354A High molecular emulsion polymer and preparation method thereof |
11/10/2010 | CN101362938B Drilling shaft lining stabilizer |
11/09/2010 | US7829510 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 |
11/09/2010 | US7829509 Annular fluids and method of emplacing the same |
11/09/2010 | US7829508 Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures |
11/09/2010 | US7829507 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. |
11/09/2010 | US7829506 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 |
11/09/2010 | CA2462087C Method for the recovery of hydrocarbons from hydrates |
11/09/2010 | CA2442649C Methods of introducing treating fluids into subterranean producing zones |
11/04/2010 | WO2010126925A2 Wellbore fluids employing sacrificial viscosifiers |
11/04/2010 | WO2010125327A1 Method of selecting a wellbore cement having desirable characteristics |
11/04/2010 | WO2010124769A1 Compositions and methods for servicing subterranean wells |
11/04/2010 | WO2010103245A3 Hydrodewaxed hydrocarbon fluid used in the manufacture of fluids for industrial, agricultural, or domestic use |
11/04/2010 | WO2009129442A3 Method for recovery of hydrocarbons from a subsurface hydrocarbon containing formation |
11/04/2010 | US20100276152 Acidic aqueous solution containing a chelating agent and the use thereof |
11/04/2010 | CA2759309A1 Compositions and methods for servicing subterranean wells |
11/03/2010 | EP2246408A2 Method and composition for the triggered release of polymer-degrading agents for oil field use |
11/03/2010 | EP2246407A1 2-Hydroxy-3-alkoxypropyl sulfides, sulfones, and sulfoxides: new surface active agents |