| 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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| 02/05/2014 | CN103555313A Imidazolium salt ionic liquid acidizing corrosion inhibitor as well as preparation method and application thereof |
| 02/05/2014 | CN103555312A Nano composite fiber clean fracturing fluid and preparation method thereof |
| 02/05/2014 | CN103555311A AM/NaAA/APO (acrylamide/sodium acrylate/N-allylphenoxyacetamide) ternary polymer flooding agent and synthesis method |
| 02/05/2014 | CN103555310A Spontaneous emulsification viscosity-break system of thickened oil, and preparation method thereof |
| 02/05/2014 | CN103555309A Water block damage treating agent based on biological surface active agent and preparation method thereof |
| 02/05/2014 | CN103555308A Application of sophorolipid in biological corrosion inhibitor for oil field produced water |
| 02/05/2014 | CN103555307A Blocking remover for oil extraction |
| 02/05/2014 | CN103555306A Oil-based mud flushing fluid suitable for high temperature high salt environment and preparation method of oil-based mud flushing fluid |
| 02/05/2014 | CN103555305A Hyperbranched slow-swelling profile control particles and preparation method thereof |
| 02/05/2014 | CN103555304A High-efficiency oil-based flushing spacer liquid and preparation method thereof |
| 02/05/2014 | CN103555303A Environment-friendly pseudo oil-based drilling fluid and preparation method thereof |
| 02/05/2014 | CN103555302A drilling wall-protecting slurry prepared from seawater |
| 02/05/2014 | CN103555301A High-density potassium formate drilling fluid |
| 02/05/2014 | CN103555300A Method for preparing environment-friendly viscosity and filtrate reducer for drilling fluid through walnut peels and application of viscosity and filtrate reducer |
| 02/05/2014 | CN103555299A Method for preparing environment-friendly densifier for oil field through persimmon peel and application of densifier |
| 02/05/2014 | CN103555298A Method for preparing environment-friendly drilling fluid treating agent through walnut green seedcase and application of treating agent |
| 02/05/2014 | CN103555297A Method for preparing environment-friendly densifier for oil field through peels of citrus and application of densifier |
| 02/05/2014 | CN103555296A Fluid loss agent for high-temperature-resistant compound salt resistant polymer for drilling fluid and preparation method thereof |
| 02/05/2014 | CN103555295A Plugging shield agent for drilling fluid |
| 02/05/2014 | CN103554936A Asphalt-mineral composite material prepared by utilizing thickened oil sludge and preparation method thereof |
| 02/05/2014 | CN103554481A Long-chain-segment crosslinking agent and preparation method thereof |
| 02/05/2014 | CN103554463A Alkenyl alkyl phenol polyoxyethylene ether and preparation method thereof |
| 02/05/2014 | CN103554360A Temperature-resistant salt-resistant amphiphilic copolymer as well as preparation method thereof |
| 02/05/2014 | CN103554357A Polymer-ionic liquid compounded clay stabilizer and synthesis method thereof |
| 02/05/2014 | CN103554292A Method for preparing environment-friendly chemical for oil fields by using persimmon peel pectin and application of chemical |
| 02/05/2014 | CN103554291A Modification method and application of saponin gum for oil field production |
| 02/05/2014 | CN103554288A Instant guar gum and preparation method thereof |
| 02/05/2014 | CN103553964A Method for preparing multifunctional hydroxyl hydrazide for oil field and application of multifunctional hydroxyl hydrazide |
| 02/05/2014 | CN102732243B Oil-displacing agent for binary oil displacement and binary oil displacement mining method of oil field |
| 02/05/2014 | CN102703049B Binary compound oil-flooding composition and application thereof in tertiary oil recovery |
| 02/05/2014 | CN102533232B Solid-phase-free multi-functional well completion working solution |
| 02/05/2014 | CN102516974B Foam profile control agent applicable to oil field in-depth profile control |
| 02/05/2014 | CN102504772B Biodiesel drilling fluid and preparation method thereof |
| 02/05/2014 | CN102485826B Low temperature microbubble drilling fluid flow pattern conditioning agent and application thereof |
| 02/05/2014 | CN102453116B Redox initiator system, acrylamide polymer and preparation method and application of acrylamide polymer |
| 02/05/2014 | CN102453115B Redox initiator system, acrylamide polymer and preparation method and application of acrylamide polymer |
| 02/05/2014 | CN102453112B Redox initiator system and acrylamide polymer and preparation method thereof and application thereof |
| 02/05/2014 | CN102372819B Long branched chain polymer used for oil displacement and synthesis method thereof |
| 02/04/2014 | US8641818 Well cement compositions comprising biowaste ash and methods of use |
| 02/04/2014 | CA2758335C Methods and composition relating to the chemical degradation of degradable polymers |
| 02/04/2014 | CA2732857C Improved fluid loss compositions and methods of use for subterranean operations |
| 02/04/2014 | CA2559111C Oilfield elements having controlled solubility and methods of use |
| 01/30/2014 | WO2014018696A1 Utilization of microwave technology in enhanced oil recovery process for deep shallow applications |
| 01/30/2014 | WO2014017911A1 Plant derived cellulose compositions for use as drilling muds |
| 01/30/2014 | WO2014016410A1 Polymer composition for inhibiting the formation of inorganic and/or organic deposits in underground formations |
| 01/30/2014 | WO2014015911A1 Esters for drilling emulsions and metal working fluids |
| 01/30/2014 | US20140031265 Controlled release of surfactants for enhanced oil recovery |
| 01/30/2014 | US20140031264 Method of treating subterranean formations |
| 01/30/2014 | US20140027119 In situ recovery from a hydrocarbon containing formation |
| 01/30/2014 | US20140027116 Polymer nanocomposite, process for making and use of same |
| 01/29/2014 | EP2690153A1 Methods for completing subterranean wells |
| 01/29/2014 | EP2689099A1 Methods of using invert emulsion fluids with high internal phase concentration |
| 01/29/2014 | EP2688977A1 Highly-concentrated flowable salts of alkyl polyalkoxy sulphates |
| 01/29/2014 | EP2688976A2 Invert drilling fluids |
| 01/29/2014 | EP2688975A1 Methods of fluid loss control and fluid diversion in subterranean formations |
| 01/29/2014 | CN103547653A Biomass-based oil field chemicals |
| 01/29/2014 | CN103547545A Proppant particles formed from slurry droplets and method of use |
| 01/29/2014 | CN103541712A Method for plug removal of triassic oil reservoir in nitrogen foam acidification mode |
| 01/29/2014 | CN103541701A Oil displacing method for improving high-temperature oil reservoir tertiary oil recovery rate |
| 01/29/2014 | CN103541683A Method for leaking stoppage by pre-arranging plugging gel and tightly adding cement paste |
| 01/29/2014 | CN103540309A Reusable hydraulic fracture resistance reducing agent as well as preparation method and application thereof |
| 01/29/2014 | CN103540308A Supercritical carbon dioxide based fracturing liquid system and application thereof |
| 01/29/2014 | CN103540307A Composition for increasing recovery efficiency of high-temperature oil reservoir and preparation method of composition |
| 01/29/2014 | CN103540306A Surfactant composition for tertiary oil recovery and preparation method thereof |
| 01/29/2014 | CN103540305A Surfactant composition for chemical displacement of reservoir oil and preparation method thereof |
| 01/29/2014 | CN103540304A Surfactant composition for intensified oil production and preparation method thereof |
| 01/29/2014 | CN103540303A Composite surfactant composition as well as preparation method thereof |
| 01/29/2014 | CN103540302A Special environment-friendly pipeline ferrobacillus killing agent for deep sea oil field |
| 01/29/2014 | CN103540301A Self-repairing latex well cementation cement slurry as well as preparation and application thereof |
| 01/29/2014 | CN103540300A Chrome leather shaving toughening and cementing cement slurry and preparation method thereof |
| 01/29/2014 | CN103540299A Drilling fluid for low-pressure water-sensitive stratum |
| 01/29/2014 | CN103540298A Oil-based drilling fluid as well as preparation method thereof |
| 01/29/2014 | CN103540297A Composite oil-based emulsifier containing fatty alcohol polyoxyethylene polypropylene oxide ether carboxylate and preparation method thereof |
| 01/29/2014 | CN103539947A Graft-modified ultrahigh-molecular-weight polyacrylamide and preparation method thereof |
| 01/29/2014 | CN103539946A Hydrophobic polymer graft modified acrylamide polymer and preparation method thereof |
| 01/29/2014 | CN103539902A Preparation method of high temperature resistant contraction-expansion system for promoting stratum clay modification |
| 01/29/2014 | CN103539893A Preparation technology of water phase transmission drag reducer for slickwater fracturing |
| 01/29/2014 | CN103539786A Benzotriazole imidazoline and derivative and synthesis process and application thereof |
| 01/29/2014 | CN103539691A N, N'-di-fatty acyl diethoxy aliphatic diamine dipolyoxypropylene ether carboxylate or sulfonate as well as preparation method thereof |
| 01/29/2014 | CN103539437A Ceramic article and process for making the same |
| 01/29/2014 | CN103539248A Method for preparing environment-friendly flocculating agent from waste fruit peels and application of environment-friendly flocculating agent |
| 01/29/2014 | CN102786638B Method for preparing viscosity reducer |
| 01/29/2014 | CN102732239B Organic and inorganic composite flushing liquid as well as preparation method and applications thereof |
| 01/29/2014 | CN102731105B Method for preparing composite fracturing propping agent by using gold tailings and alumina fibers |
| 01/29/2014 | CN102718521B Method of using coal gangue to prepare fracturing propping agent |
| 01/29/2014 | CN102718493B Method for preparing composite type fracturing propping agent by utilizing gold ore tailings and zirconium oxide |
| 01/29/2014 | CN102690641B Sulfonate surfactant and preparation method thereof |
| 01/29/2014 | CN102627960B Self-gas-generating foam fracturing fluid, its production method and application method |
| 01/29/2014 | CN102604604B Drilling fluid material, preparation thereof and application thereof |
| 01/29/2014 | CN102516959B Magnetorheological isolating liquid and application thereof |
| 01/29/2014 | CN102321465B High-viscosity dispersion-resistant grouting material |
| 01/29/2014 | CN102177217B Improved fluid loss compositions and methods of use for subterranean operations |
| 01/29/2014 | CN102083940B Methods for treating hydrocarbon-bearing formations having brine |
| 01/29/2014 | CN102083937B Use, as thickening agent, of a salty aqueous formulation of a water-soluble cross-linked and hydrophobically-modified acrylic copolymer |
| 01/29/2014 | CN101974321B Micelle oil displacement agent with oil deposit adaptability |
| 01/28/2014 | CA2629918C Viscoelastic surfactant rheology modification |
| 01/23/2014 | WO2014015307A1 Carbon dioxide-based geothermal energy generation systems and methods related thereto |
| 01/23/2014 | WO2014014983A1 Aqueous cement compositions incorporating particles that are activated to control rheology when water soluble portions of the particles are released in the presence of water |
| 01/23/2014 | WO2014014888A1 Improved clay and shale inhibition agents and method of use |
| 01/23/2014 | WO2014014886A1 Mono-quaternary amine alcohols for use as clay and shale inhibition agents for the drilling industry |