| 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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| 05/22/2013 | CN1856636B Solid-liquid separation of oil-based muds |
| 05/22/2013 | CN103119124A Low residue formation fracturing |
| 05/22/2013 | CN103119123A Oil well drilling fluids, oil well cement composition, and slurry of weighting material comprising ilmenite |
| 05/22/2013 | CN103114834A Method of lowering viscosity of thickened oil |
| 05/22/2013 | CN103114833A Microbe oil extraction method for activating oil deposit deep portion function flora |
| 05/22/2013 | CN103114289A Composite corrosion inhibitor for offshore high-chlorine high-carbon-dioxide oilfield gathering and transferring system and preparation method thereof |
| 05/22/2013 | CN103114085A Preparation of SRB (sulfate reducing bacterium) biological inhibitor and method for inhibiting SRB in crude oil |
| 05/22/2013 | CN103113875A Water-based fracturing fluid thickener and method for preparing same |
| 05/22/2013 | CN103113874A Organic titanium crosslinking agent, and preparation method and application method thereof |
| 05/22/2013 | CN103113873A Modifying and flooding agent for reutilization of residual polymers in formation and application thereof |
| 05/22/2013 | CN103113872A High-efficiency decompression and augmented injection agent used for oil extraction and production method thereof |
| 05/22/2013 | CN103113871A Selecting and blocking ball for performing profile control of water injection well in medium-high temperature oilfield and preparation method and application thereof |
| 05/22/2013 | CN103113870A Organic modifying and flooding agent for recycling residual polymer and preparation method of organic modifying and flooding agent |
| 05/22/2013 | CN103113869A Double-long-chain alkyl hydroxy sulfobetaine surfactant and oil-displacing agent |
| 05/22/2013 | CN103113868A Composition for alkali-free chemical complex oil displacement and application thereof in tertiary oil recovery |
| 05/22/2013 | CN103113867A Imidazoline-type compound corrosion inhibitor |
| 05/22/2013 | CN103113866A Novel biological inhibitor for inhibiting activity of sulfate reducing bacteria in oil well and use method thereof |
| 05/22/2013 | CN103113865A Delaying foaming-type polymer sealing material for mining |
| 05/22/2013 | CN103113864A Temporary blocking agent, composite blockage removal agent and combined blockage removal method using temporary blocking agent and composite blockage removal agent |
| 05/22/2013 | CN103113863A Impervious blocking agent |
| 05/22/2013 | CN103113862A Amphoteric ionic ultra-high-temperature polysulfonate drilling fluid |
| 05/22/2013 | CN103113861A Suppressant for drilling fluid and preparation method thereof |
| 05/22/2013 | CN103113702A Cross-linked polymer system heat stabilizer for water shutoff and profile control, and preparation method and application thereof |
| 05/22/2013 | CN103113584A Three compound combination flooding adopted environment-friendly preparation method of polyaspartic acid for oil field |
| 05/22/2013 | CN103113524A Preparation method of starch grafted copolymer inverse emulsion for drilling fluid |
| 05/22/2013 | CN103113522A Preparation of AMPS (2-Acrylamido-2- Methyl Propane Sulfonic Acid)/MAG (Methacryloylchloride Guar Gum) polymer and application method thereof in development of oil and gas field |
| 05/22/2013 | CN103113519A High-concentration microgel profile controlling and flooding agent for profile controlling and flooding of oil field and preparation method thereof |
| 05/22/2013 | CN103113518A Viscosifier for drilling fluid and preparation method thereof |
| 05/22/2013 | CN103113517A Synthesis method of high molecular weight temperature and salt resistant polyacrylamide |
| 05/22/2013 | CN103113486A Sulfonic acid modified carboxymethyl hydroxypropyl guar gum, and preparation method and application thereof |
| 05/22/2013 | CN103113029A Method for producing G-level high oil-resistant well cement clinker and cement clinker produced by method |
| 05/22/2013 | CN103111327A Thickened oil aquathermolysis catalyst, preparation method thereof, transition metal complex and ligand |
| 05/22/2013 | CN102660475B High-temperature-resistance paraffin degradation bacterium and application thereof in paraffin elimination and prevention |
| 05/22/2013 | CN102559551B Pseudomonas stutzeri as well as culture method and application thereof |
| 05/22/2013 | CN102504798B Ground crosslinked acid liquid for acid fracturing and preparation method thereof |
| 05/22/2013 | CN102492412B Fracturing prepad fluid |
| 05/22/2013 | CN102453471B Fresh water-based micro bubble drilling fluid for drilling coal bed gas |
| 05/22/2013 | CN102391380B Hemp stalk composite cellulose ether and preparation method thereof |
| 05/22/2013 | CN102363726B Novel oil soluble viscosity breaking agent for thickened oil recovery |
| 05/22/2013 | CN102352225B Powder for plugging air leaking crack |
| 05/22/2013 | CN102229798B Fracturing fluid prepared from simulated stratum produced water or stratum produced water |
| 05/22/2013 | CN102134481B Carboxymethyl-hydroxypropyl guar gum water-base fracturing fluid |
| 05/22/2013 | CN102093863B Ultra-fine cement slurry for blocking |
| 05/22/2013 | CN102040992B Rod blockage prevention liquid for carbon dioxide huff-puff enhanced oil recovery and injection method thereof |
| 05/22/2013 | CN101824103B Polyacrylamide inorganic nano composite drilling fluid aid and preparation method thereof |
| 05/22/2013 | CN101735794B Additive for improving wettability of pulverized coal |
| 05/21/2013 | US8445414 Compositions and methods for controlling fluid loss |
| 05/21/2013 | CA2802841C Crosslinking composition for fracturing fluids |
| 05/21/2013 | CA2758686A1 Fluid treatment systems, compositions and methods for metal ion stabilization in aqueous solutions |
| 05/21/2013 | CA2737870C Microemulsifiers and methods of making and using same |
| 05/21/2013 | CA2679463C Stable sodium thiosulfate based fluidized polymer suspensions of hydroxyethyl cellulose for oilfield services |
| 05/21/2013 | CA2673367C Hydrolyzed nitrilotriacetonitrile compositions, nitrilotriacetonitrile hydrolysis formulations and methods for making and using same |
| 05/16/2013 | WO2013070728A1 System and method for injecting peracetic acid |
| 05/16/2013 | WO2013070585A1 Hydrolyzable particle compositions, treatment fluids and methods |
| 05/16/2013 | WO2013070419A1 Enhanced electrolytic degradation of controlled electrolytic material |
| 05/16/2013 | WO2013070418A1 Agents for enhanced degradation of controlled electrolytic material |
| 05/16/2013 | WO2013070361A1 Cleanup fluids for anhydrous borate compounds and methods for use thereof in subterranean formations |
| 05/16/2013 | WO2013070360A1 Controlled release breaker composition for oil field applications |
| 05/16/2013 | WO2013070082A1 Use of swellable elastomeric polymer materials |
| 05/16/2013 | WO2013068771A1 Composition and method |
| 05/16/2013 | WO2013068707A1 Compositions and methods relating to the stabilization of hydrophobically modified hydrophilic polymer treatment fluids under alkaline conditions |
| 05/16/2013 | WO2013068325A1 Proppant particulates and methods of using such particulates in subterranean applications |
| 05/16/2013 | WO2013022558A3 Methods for monitoring the formation and transport of an acidizing fluid using opticoanalytical devices |
| 05/16/2013 | WO2012010853A3 Real-time field friction reduction meter and method of use |
| 05/16/2013 | US20130123152 Ceramic particles and methods for making the same |
| 05/16/2013 | US20130123151 Metallic particle mediated viscosity reduction of viscoelastic surfactants |
| 05/16/2013 | US20130123150 Metallic particle induced saponification of fatty acids as breakers for viscoelastic surfactant-gelled fluids |
| 05/16/2013 | US20130123149 Polyelectrolyte Complexes for Oil and Gas Applications |
| 05/16/2013 | US20130123148 Use of polylysine as a shale inhibitor |
| 05/16/2013 | US20130123147 Polymers having acid and amide moieties, and uses thereof |
| 05/16/2013 | US20130118759 Agents for enhanced degradation of controlled electrolytic material |
| 05/16/2013 | US20130118744 Self-Degrading High Temperature Stable Gel for Downhole Applications |
| 05/16/2013 | US20130118742 Engineered Fibers for Well Treatments |
| 05/16/2013 | US20130118741 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 05/16/2013 | CA2854870A1 Hydrolyzable particle compositions, treatment fluids and methods |
| 05/16/2013 | CA2854166A1 Proppant particulates and methods of using such particulates in subterranean applications |
| 05/16/2013 | CA2851430A1 Cleanup fluids for anhydrous borate compounds and methods for use thereof in subterranean formations |
| 05/16/2013 | CA2850106A1 Method of fracturing using mannanohydrolase enzyme breaker |
| 05/16/2013 | CA2818457A1 Compositions and methods relating to the stabilization of hydrophobically modified hydrophilic polymer treatment fluids under alkaline conditions |
| 05/15/2013 | EP2592129A1 Swellable material using soy spent flakes |
| 05/15/2013 | EP2592128A1 Metallic particle induced saponification of fatty acids as breakers for viscoelastic surfactant-gelled fluids |
| 05/15/2013 | EP2591064A1 Hybrid cement set-on-command compositions and methods of use |
| 05/15/2013 | EP2591063A1 Hybrid cement set-on-command compositions |
| 05/15/2013 | CN103109039A Hydraulic fracturing method |
| 05/15/2013 | CN103108939A Self-repairing cements |
| 05/15/2013 | CN103102876A Preparation method for inorganic-organic composite type profile control agent |
| 05/15/2013 | CN103102875A Oilfield oil extraction additive and preparation method thereof |
| 05/15/2013 | CN103102874A Drilling fluid and preparation method thereof |
| 05/15/2013 | CN103102311A Cinnamyl imidazoline derivative and its preparation method and use |
| 05/15/2013 | CN103102310A Cinnamyl imidazoline derivatives and preparation method thereof |
| 05/15/2013 | CN102633492B Production process for preparing ceramsite by using low-grade bauxite |
| 05/15/2013 | CN102424747B Synthetic base drilling fluid |
| 05/15/2013 | CN102337113B Method for preparing high temperature retarding-type organic boron zirconium cross linking agent |
| 05/15/2013 | CN102220116B Composite sodium hypochlorite solution oil well blocking remover |
| 05/15/2013 | CN102212356B High temperature foaming agent |
| 05/15/2013 | CN102093855B Organic soil and preparation method thereof |
| 05/15/2013 | CN102086390B Solidfree well killing fluid for acidic oil-gas reservoir |
| 05/15/2013 | CN102002351B Selective chemical water shutoff agent for gravel-packed well |
| 05/15/2013 | CN101792661B Biological activator for compound production promoter used in oil production |
| 05/15/2013 | CN101747885B Method for preparing high molecular weight salt-resistant polymer oil displacement agents |