| 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) |
|---|
| 10/02/2013 | CN103333671A Profile control agent used for oil field and preparation method thereof |
| 10/02/2013 | CN103333670A Gas self-production system used for plug removal and energy increase of oil-water well and application method thereof |
| 10/02/2013 | CN103333669A Preparation method of polymer weak gel deep profile control agent |
| 10/02/2013 | CN103333668A Permeable water plugging modified phenolic resin injecting paste material for underground coal mine and preparation method |
| 10/02/2013 | CN103333667A Formula and preparation method of low-pressure coefficient gas pool reservoir protection drilling fluid |
| 10/02/2013 | CN103333666A Solid-free well-completion confining liquid and preparation method thereof |
| 10/02/2013 | CN103333665A Dispersing agent for ultrahigh-density drilling fluid and preparation method thereof |
| 10/02/2013 | CN103331127A Biosurfactant and preparation method thereof |
| 10/02/2013 | CN102643631B Method for preparing impervious filtrate reducer for drilling fluid from furfural residue and xylose residue |
| 10/02/2013 | CN102504777B Delaying cross-linking polymer hard-gel in-depth profile controlling agent and preparation method thereof |
| 10/02/2013 | CN102504292B Organic cross linking system for polymer flooding and preparation method of cross linking agent |
| 10/02/2013 | CN101928366B Method for preparing viscosity breaking agent for drilling fluid |
| 10/02/2013 | CN101848977B Drilling fluid containing carbon nanotubes |
| 10/01/2013 | US8546310 Density-matched suspensions and associated methods |
| 10/01/2013 | US8545935 On-the-fly coating of acid-releasing degradable material onto a particulate |
| 10/01/2013 | US8544565 Lost circulation control fluids for naturally fractured carbonate formations |
| 10/01/2013 | CA2754255C Methods of treating a portion of a well with a polymer or polymer system capable of forming a gel that dissolves at a low and high ph |
| 10/01/2013 | CA2693640C Solvent separation in a solvent-dominated recovery process |
| 09/30/2013 | CA2773019A1 Method and apparatus for preparing fracturing fluids |
| 09/26/2013 | WO2013142789A1 In-situ self diverting wag process |
| 09/26/2013 | WO2013142363A1 Vegetable oils, vegetable oil blends, and methods of use thereof |
| 09/26/2013 | WO2013141960A1 Lost circulation materials and methods of using the same |
| 09/26/2013 | WO2013022574A3 Methods for monitoring fluids within or produced from a subterranean formation during fracturing operations using opticoanalytical devices |
| 09/26/2013 | WO2013022570A3 Methods for monitoring fluids within or produced from a subterranean formation during acidizing operations using opticoanalytical devices |
| 09/26/2013 | WO2013022568A3 Methods for monitoring the formation and transport of a fracturing fluid using opticoanalytical devices |
| 09/26/2013 | WO2013022556A3 Methods for monitoring the formation and transport of a treatment fluid using opticoanalytical devices |
| 09/26/2013 | WO2011075242A9 Kinetic gas hydrate inhibitors in completion fluids |
| 09/26/2013 | US20130252858 Low-Toxicity, Low-Flammability, Environmentally-Safe, Friction Reducer Fluid For Hydraulic Fracturing |
| 09/26/2013 | US20130252857 Completion fluid |
| 09/26/2013 | US20130252856 Synergistic surfactant compositions for unloading fluids from oil and gas wells |
| 09/26/2013 | US20130252855 Novel use of a mild alkaline agent in chemical eor |
| 09/26/2013 | US20130252854 Oil drilling auxiliary dispersion |
| 09/26/2013 | US20130252853 Novel process for drilling subterranean cavities |
| 09/26/2013 | US20130248257 Drilling Fluid Composition |
| 09/26/2013 | US20130248188 In-situ self diverting wag process |
| 09/26/2013 | US20130248186 Method for inhibiting scale formation in oil wells |
| 09/25/2013 | EP2640804A1 Process for the production of coated proppants |
| 09/25/2013 | EP2640803A2 Foamers for downhole injection |
| 09/25/2013 | EP2640802A1 Non-aqueous drilling additive useful to produce a flat temperature-rheology profile |
| 09/25/2013 | EP2640801A1 Oxygen scavenger compositions for completion brines |
| 09/25/2013 | CN103328765A Methods to create high conductivity fractures that connect hydraulic fracture networks in a well |
| 09/25/2013 | CN103328603A Methods for treating siliciclastic hydrocarbon-bearing formations with fluorinated amine oxides |
| 09/25/2013 | CN103328602A Method for oil recovery using hydrophobically associating polymers |
| 09/25/2013 | CN103328601A Aqueous formulations of hydrophobically associating copolymers and surfactants and also their use for pertroleum recovery |
| 09/25/2013 | CN103321610A Gas well lifting draining method capable of eliminating H2S damage |
| 09/25/2013 | CN103321606A Low-permeability fractured reservoir oil well water-plugging and screening method |
| 09/25/2013 | CN103320115A Method for preparing petroleum fracturing propping agent by utilizing high-alumina fly ash |
| 09/25/2013 | CN103320114A Multiple association type polymer cleaning fracturing fluid thickening agent and preparation method thereof |
| 09/25/2013 | CN103320113A Water-soluble AM-AA-NVP-BEMA quadripolymer oil-displacing agent and synthetic method thereof |
| 09/25/2013 | CN103320112A Novel anti-shearing branch polymer oil displacement agent and synthetic method thereof |
| 09/25/2013 | CN103320111A AM(acrylamide) /AA(acrylic acid)/NVP(N-vinyl pyrrolidinone)/YEML quadripolymer oil-displacing agent and synthetic method thereof |
| 09/25/2013 | CN103320110A Nano composite high-temperature-resistant extraction aid for thickened oil and super-thickened oil recovery and preparation method thereof |
| 09/25/2013 | CN103320109A Novel quaternary copolymerization phosphate clay stabilizer and synthetic method thereof |
| 09/25/2013 | CN103320108A Wax-removing agent and preparation method thereof |
| 09/25/2013 | CN103320107A Tenacity anti-fluid-channeling cement slurry for solid expansion pipe fixed well |
| 09/25/2013 | CN103320106A Leakage-sealing temporary plugging agent for petroleum drilling fluid and preparation method of leakage-sealing temporary plugging agent |
| 09/25/2013 | CN103320105A Recyclable microbubble drilling fluid |
| 09/25/2013 | CN103320104A Water-in-oil-type biodiesel-based drilling fluid and preparation method thereof |
| 09/25/2013 | CN103320103A Method for recycling base oil of waste liquid of oil-based drilling liquid |
| 09/25/2013 | CN103320102A Drilling fluid for drilling horizontal well by filling nitrogen |
| 09/25/2013 | CN103320101A Emulsified asphalt for drilling fluids |
| 09/25/2013 | CN103320100A Magnetic nano plugging agent and preparation method thereof |
| 09/25/2013 | CN103320099A Petroleum drilling fluid viscosity reducing agent as well as preparation method and application method thereof |
| 09/25/2013 | CN103319650A Phosphoaluminate cement system fluid loss additive and preparation method thereof |
| 09/25/2013 | CN103319649A Polynary copolymer and preparation method thereof, and applications of modified ternary copolymer |
| 09/25/2013 | CN103319648A Modified ternary copolymer, preparation method and applications thereof |
| 09/25/2013 | CN103013467B Nonclay one-way plugging drilling fluid |
| 09/25/2013 | CN102911648B High-temperature resistant viscosity-increasing filtration-loss reducing agent and preparation method thereof used for drilling fluid |
| 09/25/2013 | CN102703051B Steam flooding additive |
| 09/25/2013 | CN102587865B Foam drainage gas recovery method for natural gas horizontal well |
| 09/25/2013 | CN102531443B Early strength agent composition and preparation method thereof, cement composition and uses of above |
| 09/25/2013 | CN102504789B Lipopetide biosurfactant oil extraction agent for improving extraction rate of crude oil |
| 09/25/2013 | CN102408517B Degradation-resistant polymer for tertiary oil recovery and preparation method thereof |
| 09/25/2013 | CN102408516B Hydrolysis-resistant oil displacement polymer and preparation method thereof |
| 09/25/2013 | CN101684404B Nano-additive for hydrocarbon well cementing operations |
| 09/24/2013 | US8541348 Stabilization of emulsions containing resinous material for use in the field of oil or gas well treatments |
| 09/24/2013 | US8541347 Hydrocarbon-acid emulsion compositions and associated methods |
| 09/24/2013 | US8541346 Methods of degrading subterranean filter cakes |
| 09/24/2013 | US8541051 On-the fly coating of acid-releasing degradable material onto a particulate |
| 09/24/2013 | CA2568593C Method and apparatus for performing chemical treatments of exposed geological formations |
| 09/24/2013 | CA2540560C Solid-liquid separation of oil-based muds |
| 09/19/2013 | WO2013138134A1 Oilfield chemicals with attached spin probes |
| 09/19/2013 | WO2013135235A1 Process for producing and using a gel system for oilfield and gasfield applications, such as fracking and well cleaning, and gel system produced by this process |
| 09/19/2013 | WO2012174370A9 Composition of polybutadiene-based formula for downhole applications |
| 09/19/2013 | WO2012127183A8 Treatment fluids containing a biodegradable chelating agent and methods for use thereof |
| 09/19/2013 | US20130244914 Light Weight Proppant With Improved Strength And Methods Of Making Same |
| 09/19/2013 | US20130244913 Composition and method of converting a fluid from oil external to water external for cleaning a wellbore |
| 09/19/2013 | US20130244912 Delivery of Particulate Material Below Ground |
| 09/19/2013 | US20130244911 Foamed Spacer Fluids Containing Cement Kiln Dust and Methods of Use |
| 09/19/2013 | US20130244910 Lost Circulation Materials and Methods of Using the Same |
| 09/19/2013 | US20130240206 Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials |
| 09/18/2013 | EP2638186A1 Method and composition for preventing corrosion of metal surfaces |
| 09/18/2013 | EP2638125A1 Thermally stable scale inhibitor compositions |
| 09/18/2013 | CN203200213U Device for outputting water blocking treating agent |
| 09/18/2013 | CN203200212U Device for preparing water blocking treating agent |
| 09/18/2013 | CN103314137A Corrosion inhibitors |
| 09/18/2013 | CN103305208A Strong acid-based surfactant fracturing fluid and fracturing method thereof |
| 09/18/2013 | CN103305207A Novel and environmentally-friendly fracturing fluid for exploitation of oil-gas fields |
| 09/18/2013 | CN103305206A Method for continuously blending fracturing fluid by utilizing sea water |
| 09/18/2013 | CN103305205A Preparation method for polyhydroxy-alcohol fracturing fluid cross-linking agent |