| 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) |
|---|
| 12/26/2013 | US20130341010 Method for Fracturing a Formation Using a Fracturing Fluid Mixture |
| 12/25/2013 | EP2676944A1 Compositions and methods for completing subterranean wells |
| 12/25/2013 | EP2675866A1 Method for extracting crude oil from crude oil reservoirs with a high reservoir temperature |
| 12/25/2013 | EP2675865A2 Non-aqueous, acid soluble, high-density completion fluids and process |
| 12/25/2013 | EP2675864A1 Composition and method for removing filter cake |
| 12/25/2013 | EP2356193B1 Chrome free water-based wellbore fluid |
| 12/25/2013 | CN103476901A Method and composition for enhanced hydrocarbon recovery |
| 12/25/2013 | CN103476900A Families of scale-inhibitors having different absorption profiles and their application in oilfield |
| 12/25/2013 | CN103476899A Method for recovering oil from a reservoir by means of micro (nano)-structured fluids with controlled release of barrier substances |
| 12/25/2013 | CN103476729A Use of methylhydroxyethyl cellulose as cement additive |
| 12/25/2013 | CN103468240A Ultralow-density ceramsite proppant with flint clay tailings as raw materials and preparation method of ultralow-density ceramsite proppant |
| 12/25/2013 | CN103468239A Low-density high-strength ceramsite proppant prepared from flint clay as raw material and preparation method thereof |
| 12/25/2013 | CN103468238A Preparation method and application of novel high-efficient acidification corrosion inhibitor |
| 12/25/2013 | CN103468237A 清洁压裂液及其制备方法 Clean fracturing fluid and its preparation method |
| 12/25/2013 | CN103468236A Butane-containing fracturing fluid and preparation method thereof |
| 12/25/2013 | CN103468235A Chemical assistant for thermal recovery of thick oil and application thereof |
| 12/25/2013 | CN103468234A Foam discharging balls for gas well and preparation method thereof |
| 12/25/2013 | CN103468233A Sustained-release nutritional agent for indigenous microorganisms for oil extraction and preparation method thereof |
| 12/25/2013 | CN103468232A Preparation method for deposited-wax cleaning agent |
| 12/25/2013 | CN103468231A Silane coupler-coated self-repairing agent as well as preparation and application thereof |
| 12/25/2013 | CN103468230A Secondary crosslinking, profile modification and profile control agent, and preparation method and application thereof |
| 12/25/2013 | CN103468229A Solid-free and high-viscosity separation agent for well completion fluid |
| 12/25/2013 | CN103468228A Surface active agent and oil-soluble viscosity reducer for crude oil as well as preparation method of surface active agent |
| 12/25/2013 | CN103467301A Method for preparing small-molecular-weight Gemini cation-type anti-swelling agent for low-permeability reservoir |
| 12/25/2013 | CN102676151B Ultra-low-density ceramic proppant taking pebbles as main additive and preparation method thereof |
| 12/25/2013 | CN102634327B Gas field foam drainage agent |
| 12/25/2013 | CN102627956B Application of curdlan as profile control agent in petroleum exploitation and application method |
| 12/25/2013 | CN102618247B Air-foam rare earth-base gel and preparation method thereof |
| 12/25/2013 | CN102516977B Low-density ceramic proppant and preparation method thereof |
| 12/25/2013 | CN102464598B Fatty acid amide polyoxylethylene ether benzene sulfonate and preparation method thereof |
| 12/25/2013 | CN102358833B Paraffin removing and resisting agent for oil well |
| 12/25/2013 | CN102333807B Particles comprising blocked isocyanate resin and method of modifying wellbore using same |
| 12/25/2013 | CN102278102B Binary oil driving method for high-temperature and high-salt oil reservoir |
| 12/25/2013 | CN102277150B Application of star polyacrylamide polymer as oil displacement agent |
| 12/25/2013 | CN102277146B Composition for improving recovery ratio substantially and preparation method thereof |
| 12/25/2013 | CN101735788B Pour point depressant for crude oil |
| 12/25/2013 | CN101495593B Composition for producing foams in process for extracting petroleum or natural gas |
| 12/24/2013 | US8614172 Methods and compositions for enhancing guar hydration rates and performing guar derivatization reactions |
| 12/24/2013 | US8614171 Compositions for stimulating liquid-sensitive subterranean formations |
| 12/24/2013 | US8614170 Method for treating fracturing water |
| 12/24/2013 | US8614157 Sintered particles and methods for producing sintered particles from a slurry of an alumina-containing raw material |
| 12/24/2013 | US8613319 Lost-circulation material made from a recycled material containing asphalt |
| 12/24/2013 | US8613318 Flooding fluid and enhancing oil recovery method |
| 12/24/2013 | CA2763357C Tackifying agent pre-coated particulates |
| 12/24/2013 | CA2758311C Well treatment compositions and methods utilizing nano-particles |
| 12/24/2013 | CA2738482C Method of acidizing a subterranean formation with diverting foam or fluid |
| 12/24/2013 | CA2669192C Polymeric acid precursor compositions and methods |
| 12/21/2013 | CA2780546A1 Tubular downhole patch for sealing a leak in the casing of a well |
| 12/19/2013 | WO2013188413A1 Crosslinked synthetic polymer gel systems for hydraulic fracturing |
| 12/19/2013 | WO2013186110A1 Method of recovering oil from a subterranean formation |
| 12/19/2013 | WO2013186093A1 Method of treating subterranean formations |
| 12/19/2013 | US20130338254 Methods and Compositions for Consolidating Particulate Matter in a Subterranean Formation |
| 12/19/2013 | US20130338048 Breakers for gelled fracturing fluids |
| 12/19/2013 | US20130333892 Acidizing materials and methods and fluids for earth formation protection |
| 12/19/2013 | US20130333890 Methods of removing a wellbore isolation device using a eutectic composition |
| 12/19/2013 | US20130333889 Method for the fracture stimulation of a subterranean formation having a wellbore by using impact-modified thermoset polymer nanocomposite particles as proppants |
| 12/18/2013 | EP2673333A1 Multistage process for recovering petroleum using microorganisms |
| 12/18/2013 | EP2673332A1 Multistage process for recovering petroleum using microorganisms |
| 12/18/2013 | EP2474373B1 METHOD FOR Stabilising a subterranean formation using curable urea-formaldehyde resins |
| 12/18/2013 | EP2171015B1 Use of nano-sized clay minerals in viscoelastic surfactant fluids |
| 12/18/2013 | CN103459567A Composition comprising zwitterionic geminal liquids as wettability modifiers in improved oil recovery processes |
| 12/18/2013 | CN103459548A Delayed release well treatment composites for use in well treatment fluids |
| 12/18/2013 | CN103459359A Polyols and their use in hydrocarbon lubricating and drilling fluids |
| 12/18/2013 | CN103459348A Settable compositions comprising interground perlite and hydraulic cement |
| 12/18/2013 | CN103450873A 石油压裂支撑剂及其制备方法 Oil fracturing proppant and its preparation method |
| 12/18/2013 | CN103450872A Authigenic acid system and its application |
| 12/18/2013 | CN103450871A Environmental-friendly type negative ion fracturing fluid and preparing method thereof |
| 12/18/2013 | CN103450870A Drag reducer for fracturing of unconventional oil and gas reservoirs |
| 12/18/2013 | CN103450869A Preparation method of novel surfactant composite system oil-displacing agent |
| 12/18/2013 | CN103450868A Heat-resistant salt-tolerant water-soluble amphiphilic polymer composite thick oil viscosity reducer |
| 12/18/2013 | CN103450867A Method for solving water lock effect |
| 12/18/2013 | CN103450866A High-temperature carbon dioxide corrosion inhibitor |
| 12/18/2013 | CN103450865A Oil-soluble hydrogen sulfide-proof corrosion inhibitor |
| 12/18/2013 | CN103450864A Pour point depressing and viscosity reducing solid paraffin inhibitor |
| 12/18/2013 | CN103450863A Cement paste protected by low-friction resistivity reservoir |
| 12/18/2013 | CN103450862A High-density potassium salt-resistant cementing slurry and preparation method for same |
| 12/18/2013 | CN103450861A Protection drilling fluid for low-pressure reservoir |
| 12/18/2013 | CN103450860A Dispersant for improving compatibility of cement mortar and drilling fluid |
| 12/18/2013 | CN103450859A Preparation method of drilling fluid emulsifier |
| 12/18/2013 | CN103450441A Double-bag foaming component for sealing gas extraction holes of coal mines |
| 12/18/2013 | CN103450056A Mahogany petroleum sulfonate preparation method for oil exploitation |
| 12/18/2013 | CN103449806A Proppant prepared from magnesium ore tailings, iron ore tailings and boron sludge |
| 12/18/2013 | CN102746836B Well-cementing and self-healing cement slurry for oil-gas field |
| 12/18/2013 | CN102676139B Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof |
| 12/18/2013 | CN102676127B Method for making low-fluorescence lubricant for drilling fluid |
| 12/18/2013 | CN102399345B Emulsion deep profile/displacement control agent and preparation method of emulsion deep profile/displacement control agent containing gel microspheres of core shell structure |
| 12/18/2013 | CN102203211B Proppant |
| 12/18/2013 | CN101831280B Carrier of active ingredient of defoaming agent and preparation method thereof |
| 12/17/2013 | US8609595 Methods for determining reactive index for cement kiln dust, associated compositions, and methods of use |
| 12/17/2013 | US8609594 Chlorine dioxide precursor and methods of using same |
| 12/17/2013 | US8607895 Drilling fluid additive for reducing lost circulation in a drilling operation |
| 12/17/2013 | CA2713734C Method of treating subterranean formations with porous ceramic particulate materials |
| 12/17/2013 | CA2691871C Methods and compositions for selectively dissolving sandstone formations |
| 12/17/2013 | CA2577649C Cement compositions comprising environmentally compatible defoamers and methods of use |
| 12/12/2013 | WO2013184558A1 Proppants and anti-flowback additives comprising flash calcined clay, methods of manufacture, amd methods of use |
| 12/12/2013 | WO2013184506A1 In situ extraction of oilsand with ammonia |
| 12/12/2013 | WO2013184469A1 Methods of using oil-based wellbore cement compositions |
| 12/12/2013 | WO2013184457A1 Fluids for use with high-frequency downhole tools |
| 12/12/2013 | WO2013184116A1 Enhanced foam stability applications and methods |
| 12/12/2013 | WO2013182852A1 A method of inhibiting scale in a geological formation |