| 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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| 04/17/2013 | CN103045182A Anti-water blocking agent for drilling fluid |
| 04/17/2013 | CN103044679A Cationic polyamine polymer, and preparation method and application thereof |
| 04/17/2013 | CN103044678A Preparation method of shale inhibitor |
| 04/17/2013 | CN103044641A Preparation method of amphiphilic block inner quaternary ammonium oil displacement agent |
| 04/17/2013 | CN103044619A High-viscosity oil nanometer viscosity reducer and preparation method thereof |
| 04/17/2013 | CN103044618A Method for preparing alkali-resistant water-absorbent resin suitable for oil well cement paste |
| 04/17/2013 | CN103044293A Preparation method and application of phenoxy tertiary amine sulphonate ampholytic surfactant |
| 04/17/2013 | CN103044291A Technique for preparation of alkyl diarene sulfonate |
| 04/17/2013 | CN103043947A Tectorial membrane proppant as well as preparation method and application thereof |
| 04/17/2013 | CN102515697B Attapulgite river bottom silt ceramsite sand |
| 04/17/2013 | CN102268246B Special concrete additive for shafts |
| 04/17/2013 | CN102250601B Composite blocking remover for oil well and application method thereof |
| 04/17/2013 | CN102226077B Construction slurry for rotary pile drilling |
| 04/17/2013 | CN102127401B High-temperature resistance tackifier for drilling fluid and preparation method thereof |
| 04/17/2013 | CN101974320B Wetting reversal surfactant for drilling fluid |
| 04/17/2013 | CN101948677B Non-fluorescent graphitic lubricant for drilling fluid |
| 04/17/2013 | CN101906291B High-temperature special oil well cement material and preparation method thereof |
| 04/17/2013 | CN101899292B Novel surfactant compound system for reducing tension of oil-water interface |
| 04/17/2013 | CN101851495B Preparation of high-temperature acidification corrosion inhibitor |
| 04/17/2013 | CN101851491B Method for preparing fluid loss additive for drilling fluid |
| 04/17/2013 | CN101805595B Synthesis method of drilling fluid filtrate reducer |
| 04/17/2013 | CN101760186B Compound type vegetable oil lubricating agent for drilling fluid and preparation method thereof |
| 04/17/2013 | CN101705079B Method for preparing novel solid lubricant microspheres for drilling fluid |
| 04/16/2013 | US8420577 Methods of making polyboronic compounds and compositions related thereto |
| 04/16/2013 | US8420576 Hydrophobically and cationically modified relative permeability modifiers and associated methods |
| 04/16/2013 | US8418761 Stimuli-responsive high viscosity pill |
| 04/16/2013 | US8418759 Fluorinated polymer compositions and methods for treating hydrocarbon-bearing formations using the same |
| 04/16/2013 | CA2656344C Methods and compositions for protecting steels in acidic solutions |
| 04/16/2013 | CA2645267C Solvent for extracting bitumen from oil sands |
| 04/16/2013 | CA2538753C Method and composition for recovering hydrocarbon fluids from a subterranean reservoir |
| 04/11/2013 | WO2013052796A1 Classification scheme of sized bridging materials for superior drill-in fluid design |
| 04/11/2013 | WO2013052291A1 Self-diverting high-rate water packs |
| 04/11/2013 | WO2013052285A1 Reinforcing amorphous pla with solid particles for downhole applications |
| 04/11/2013 | WO2013052282A1 Composite formulations and methods of making and using same |
| 04/11/2013 | WO2013052252A1 Methods of fluid loss control, diversion, and sealing using deformable particulates |
| 04/11/2013 | WO2013052090A1 Improved and automated method for quality control and quality assurance of sized bridging material |
| 04/11/2013 | WO2013052085A1 Improved and automated method for quality control and quality assurance of sized bridging material |
| 04/11/2013 | WO2013050905A1 Method for stopping or at least reducing the uncontrolled release of hydrocarbons, blowout, from a hydrocarbon extraction well |
| 04/11/2013 | WO2013050364A1 Method for extracting petroleum from an underground deposit |
| 04/11/2013 | US20130090271 Inhibiting corrosion caused by aqueous aldehyde solutions |
| 04/11/2013 | US20130090270 Method to Complex Metals in Aqueous Treating Fluids for Ves-Gelled Fluids |
| 04/11/2013 | US20130090269 Dendritic comb-shaped polymer thickening agent, preparaton of the same and application thereof |
| 04/11/2013 | US20130087338 Wellbore operations using controlled variable density fluid |
| 04/11/2013 | US20130087336 System And Method Of Perforating A Well And Preparing A Perforating Fluid For The Same |
| 04/11/2013 | US20130087331 Lost-circulation material made from a recycled ceramic |
| 04/11/2013 | US20130087330 Lost-circulation material made from a recycled material containing ashpalt |
| 04/11/2013 | US20130087329 Method of tracing flow of hydrocarbon from a subterranean reservoir |
| 04/11/2013 | CA2850433A1 Composite formulations and methods of making and using same |
| 04/11/2013 | CA2849883A1 Reinforcing amorphous pla with solid particles for downhole applications |
| 04/11/2013 | CA2848383A1 Methods of fluid loss control, diversion, and sealing using deformable particulates |
| 04/11/2013 | CA2843389A1 Process for producing mineral oil from an underground deposit |
| 04/10/2013 | EP2576975A1 Sulfonated internal olefin surfactant for enhanced oil recovery |
| 04/10/2013 | EP2576967A1 Process for transporting fracture ("frac") fluid additives to oil and gas wells utilizing ion exchange resin |
| 04/10/2013 | EP2576722A1 Well servicing fluid |
| 04/10/2013 | EP2576721A2 Surfactant-less alkaline-polymer formulations for recovering reactive crude oil |
| 04/10/2013 | EP2576644A1 Additives for inhibition of gas hydrate formation |
| 04/10/2013 | CN103038324A Compatible mixtures of anionic and cationic surfactants |
| 04/10/2013 | CN103038308A Far field diversion technique for treating subterranean formation |
| 04/10/2013 | CN103032055A Displacement method utilizing compound containing sulfonate negative non-surface active agent |
| 04/10/2013 | CN103031123A Foaming agent composition for tertiary oil recovery and application thereof |
| 04/10/2013 | CN103031122A Encapsulation gel breaker and preparation method of encapsulation gel breaker |
| 04/10/2013 | CN103031121A Fracturing propping agent, preparation method thereof and deep wall fracturing method |
| 04/10/2013 | CN103031120A Foaming agent composition containing alkylphenol ethoxylate benzene sulfonate and application |
| 04/10/2013 | CN103031119A Sulfonate-containing anionic/nonionic surfactant composition and preparation method |
| 04/10/2013 | CN103031118A Polymeric filtrate reducer for drilling fluid |
| 04/10/2013 | CN103031117A Oilfield drilling accelerant |
| 04/10/2013 | CN103030916A Gel composition and nitrogen-foamed gel composite temporary plugging agent containing same |
| 04/10/2013 | CN103028342A Sulfonate anionic/nonionic surfactant and preparation method thereof |
| 04/10/2013 | CN102720466B Special alloy wax-proofing tool |
| 04/10/2013 | CN102618230B Controllable cross-linked gel water plugging and leak plugging material for oil and gas field |
| 04/10/2013 | CN102443124B Preparation method and application of multifunctional polyamine amide for oil field |
| 04/10/2013 | CN102329600B Nanoparticle sealing channeling water shutoff agent for oil wells |
| 04/10/2013 | CN102220122B Betaine type binary oil displacement agent, preparation method and use thereof |
| 04/10/2013 | CN102199418B Inorganic solidifying system for controlling bottom water coning in fracture-cavity karst reservoir, and injection method thereof |
| 04/10/2013 | CN101880522B Inorganic-organic ternary composite plugging agent for oil extraction and preparation method |
| 04/10/2013 | CN101845298B Oil-soluble viscosity reducer for extremely-viscous oil |
| 04/10/2013 | CN101831283B Water-base nano polysilicon particles, preparation method thereof and use thereof |
| 04/10/2013 | CN101812289B Nanometer polysilicon particles and preparation method and application thereof |
| 04/10/2013 | CN101747882B Tectorial membrane sand solidifying system suitable for low-temperature reservoir sand prevention |
| 04/10/2013 | CN101421373B Zirconium cross-linking composition and methods of use |
| 04/09/2013 | US8415278 Compositions and methods for breaking a viscosity increasing polymer at very low temperature used in downhole well applications |
| 04/09/2013 | US8413745 Water-based mud lubricant using fatty acid polyamine salts and fatty acid esters |
| 04/09/2013 | CA2640125C Method of treating a subterranean formation using a rheology model for fluid optimization |
| 04/09/2013 | CA2576418C Fiber laden energized fluids and methods of use thereof |
| 04/09/2013 | CA2566773C Geosynthetic composite for borehole strengthening |
| 04/06/2013 | CA2791468A1 Enhanced oilfield swellable elastomers and methods for making and using same |
| 04/04/2013 | WO2013049454A1 In-situ generated buffer system |
| 04/04/2013 | WO2013049235A1 Proppant materials and methods of tailoring proppant material surface wettability |
| 04/04/2013 | WO2013049094A1 Cementing composition comprising anionically - and hydrophobically-modified cellulose ethers and its use |
| 04/04/2013 | WO2013048860A1 Nonionic surfactants for enhanced crude oil recovery |
| 04/04/2013 | WO2013048653A1 Fluid loss additives and methods of making and using same |
| 04/04/2013 | WO2013048365A1 Anti-agglomerate gas hydrate inhibitors for use in petroleum and natural gas systems |
| 04/04/2013 | WO2013046192A1 Aggregating reagents and methods for making and using same |
| 04/04/2013 | WO2013046146A2 Hostile environment stable compositions and drilling and fracturing fluids containing same |
| 04/04/2013 | WO2013045906A1 Method |
| 04/04/2013 | WO2013044861A1 Preparation method for fracturing proppant, fracturing proppant and use thereof |
| 04/04/2013 | WO2013015928A3 Intermetallic metallic composite, method of manufacture thereof and articles comprising the same |
| 04/04/2013 | WO2012173954A3 Additives for improving hydrocarbon recovery |
| 04/04/2013 | WO2012159008A3 Triggering polymerization on-demand for water control downhole |
| 04/04/2013 | US20130085087 Pyromellitamide gelling agents |