| 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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| 09/13/2012 | WO2012122505A2 Cross-linkers for hydraulic fracturing fluid |
| 09/13/2012 | WO2012121995A2 Thermal insulating fluids |
| 09/13/2012 | WO2012121896A2 Well treatment methods and systems |
| 09/13/2012 | WO2012121828A1 Well fluid and method of servicing a well |
| 09/13/2012 | WO2012121723A1 Sulfates and phosphates as allosteric effectors in mannanohydrolase enzyme breakers |
| 09/13/2012 | WO2012121294A1 Polyglycolic acid resin particulate composition for boring, and method for producing same |
| 09/13/2012 | WO2012120278A1 Treatment method for a hydrocarbon- containing system using a biocide |
| 09/13/2012 | WO2012120143A1 Quaternary ammonium composition for inhibiting corrosion |
| 09/13/2012 | US20120231982 Well treatment methods and systems |
| 09/13/2012 | US20120231981 Proppant Particles Formed From Slurry Droplets and Method of Use |
| 09/13/2012 | US20120231980 Well fluid and method of servicing a well |
| 09/13/2012 | US20120231979 Systems and Methods For Forming High Performance Compressible Objects |
| 09/13/2012 | US20120231978 Permeability-Modifying Drilling Fluids and Methods of Use |
| 09/13/2012 | US20120231977 Thermal Insulating Fluids |
| 09/13/2012 | US20120227971 Sulfates and Phosphates as Allosteric Effectors in Mannanohydrolase Enzyme Breakers |
| 09/13/2012 | US20120227968 Proppant Particles Formed From Slurry Droplets and Method of Use |
| 09/13/2012 | US20120227967 Coated proppants |
| 09/13/2012 | US20120227631 Methods and Compositions Comprising Cement Kiln Dust Having an Altered Particle Size |
| 09/13/2012 | CA2829116A1 Cross-linkers for hydraulic fracturing fluid |
| 09/13/2012 | CA2828827A1 Treatment method for a hydrocarbon- containing system using a biocide |
| 09/13/2012 | CA2826896A1 Well treatment methods and systems |
| 09/12/2012 | EP2497844A1 Quaternary ammonium esters (Esterquats) containing composition for inhibiting corrosion of metal surface |
| 09/12/2012 | EP2497809A1 Encapsulated activator and its use to trigger a gelling system by physical means |
| 09/12/2012 | EP2496789A2 Method of mitigating corrosion rate of oilfield tubular goods |
| 09/12/2012 | EP2496659A1 Injection fluid and assisted petroleum recovery method |
| 09/12/2012 | CN102666777A Water flooding method for secondary hydrocarbon recovery |
| 09/12/2012 | CN102666776A Polymeric additives for enhancement of treatment fluids comprising viscoelastic surfactants and methods of use |
| 09/12/2012 | CN102660475A High-temperature-resistance paraffin degradation bacterium and application thereof in paraffin elimination and prevention |
| 09/12/2012 | CN102660252A Low-density ceramsite propping agent taking low-aluminum high-silicon alumyte as major raw material and preparation method thereof |
| 09/12/2012 | CN102660251A Temperature-resistant salt-tolerant foaming agent carbon dioxide flooding profile control and preparation method thereof |
| 09/12/2012 | CN102660250A Cation hydrophobic associating polymer oil displacement agent and preparation method thereof |
| 09/12/2012 | CN102660249A Oil-in-water type crude oil emulsification viscosity reducer and preparation method thereof |
| 09/12/2012 | CN102660248A Method for preparing pH-sensitive swellable compound for oil reservoir water shutoff and profile control |
| 09/12/2012 | CN102660247A Amphoteric ionic polymer clay stabilizer and preparation method |
| 09/12/2012 | CN102660246A Precoated sand used for sand prevention for intermediate and low temperate oil deposit and preparation method thereof |
| 09/12/2012 | CN102660245A Pre-coated film propping agent, preparation method of the pre-coated film propping agent and sand prevention method adopting the pre-coated film propping agent |
| 09/12/2012 | CN102660244A Composite-type oil-gas field corrosion inhibitor |
| 09/12/2012 | CN102660243A Drag reducer for overcoming high-pressure under-injection of water-injection well in low-permeability reservoir |
| 09/12/2012 | CN102660242A Protective solution for low pressure oil-well operations |
| 09/12/2012 | CN102660241A High temperature-resistant oil well cement, underground high temperature-resistant oil well cement paste and well cementation process method |
| 09/12/2012 | CN102660240A Multi-temperature-section MTC (mud to cement) well cementing liquid and preparation method thereof |
| 09/12/2012 | CN102660239A Antifreezing foam scrubbing agent and its preparation technology |
| 09/12/2012 | CN102660238A Method for preparing impervious filtrate reducer used for drilling fluid by fungus chaff |
| 09/12/2012 | CN102660237A Method for forming organic soil thickened organic solvent in situ |
| 09/12/2012 | CN102660117A Resin material, composite well repair material and well repair process |
| 09/12/2012 | CN102660039A Method for preparing hydrolyzed polyacrylonitrile filtrate reducer by cross-linking inorganic metal ions |
| 09/12/2012 | CN102660038A Method for preparing hydrolytic polyacrylonitrile filtrate reducer by organic diamine cross-linking agent |
| 09/12/2012 | CN102659393A Preparation method of medium- and low-density fracturing propping agent with fine acid resistance |
| 09/12/2012 | CN102329599B Novel selective water shutoff agent for oil well water shutoff |
| 09/12/2012 | CN102295919B Fluoride-free cleanup additive used for acidifying |
| 09/12/2012 | CN102277145B Magnesium-oxygen cement slurry used for reservoir water plugging, leak plugging and temporary-closure plugging in oil and gas well and preparation method thereof |
| 09/11/2012 | US8263533 water-in-oil latex or the crosslinked polymer powder; thickening agents; permeability reducing agents in oil wells; water inflow prevention, profile control, enhanced oil recovery; w/o and o/w emulsifiers; anionic polyelectrolyte is copolymer of ACRYLAMIDO-2-METHYL-1-PROPANESULFONIC ACID and acrylamide |
| 09/11/2012 | US8261827 Methods and compositions comprising kiln dust and metakaolin |
| 09/11/2012 | US8261825 Methods for improving the productivity of oil producing wells |
| 09/11/2012 | CA2726752C Surfactant materials and coatings for weighting agents for use in oil based drilling fluids |
| 09/11/2012 | CA2679819C Stable foamed cement slurry compositions and methods for making and using same |
| 09/11/2012 | CA2581891C Shale hydration inhibition agent and method of use |
| 09/11/2012 | CA2524966C Compositions and methods for treating lost circulation |
| 09/11/2012 | CA2517562C Flexible cementing compositions and methods for high-temperature wells |
| 09/07/2012 | WO2012118823A1 Defoaming compositions and processes for cementing applications |
| 09/07/2012 | WO2012117226A1 Radiation-induced triggering for set-on-command compositions and methods of use |
| 09/07/2012 | WO2012117007A1 Alkanesulphonic acid microcapsules and use thereof in deep wells |
| 09/07/2012 | WO2012096945A3 Method for cleaning drill cuttings |
| 09/07/2012 | WO2012082314A3 Method for preventing calcium citrate precipitation during citric acid acidizing treatments. |
| 09/07/2012 | CA2828834A1 Radiation-induced thickening and radiation-induced triggering for set-on-command sealant compositions and methods of use |
| 09/07/2012 | CA2828818A1 Radiation-induced thickening for set-on-command sealant compositions and methods of use |
| 09/07/2012 | CA2828667A1 Radiation-induced triggering for set-on-command compositions and methods of use |
| 09/07/2012 | CA2828642A1 Alkanesulfonic acid microcapsules and use thereof in deep wells |
| 09/07/2012 | CA2828331A1 Defoaming compositions and processes for cementing applications |
| 09/06/2012 | US20120225800 Hydraulic fracture composition and method |
| 09/06/2012 | US20120225799 Systems and Methods For Forming High Performance Compressible Objects |
| 09/06/2012 | US20120225450 Carboxyl-containing polymers with improved storage stability and processability |
| 09/06/2012 | US20120222863 Alkanesulfonic acid microcapsules and use thereof in deep wells |
| 09/05/2012 | EP2494143A2 Downhole chemical delivery system and method |
| 09/05/2012 | EP2494002A2 Drill-in fluids for oil and gas reservoirs with high carbonate contents |
| 09/05/2012 | EP2494001A1 Well treatment fluids containing a viscoelastic surfactant and a cross-linking agent comprising a water-soluble transition metal complex |
| 09/05/2012 | EP2494000A1 Scale inhibiting particulates and methods of using scale inhibiting particulates |
| 09/05/2012 | EP2493999A1 Cement compositions comprising latex, pozzolan and/or cement kiln dust and methods of use |
| 09/05/2012 | EP2493830A1 Methods of cementing in subterranean formations using cement kiln dust in compositions having reduced portland cement content |
| 09/05/2012 | CN102653675A Method for modification and viscosity breaking of thick oil through hydrothermal catalysis |
| 09/05/2012 | CN102653674A Preparation method and product of surfactant for oil displacement |
| 09/05/2012 | CN102653673A Biodegradable temporary plugging additive |
| 09/05/2012 | CN102093504B Preparation method of high molecular weight salt-resistance and temperature-resistance biopolymer oil displacement agent |
| 09/05/2012 | CN101812374B Modified fatty acid ester, preparation method and application thereof |
| 09/05/2012 | CN101798499B Strong inhibition type anti-collapse foam liquid for drilling |
| 09/05/2012 | CN101693829B Pulverized coal dispersing agent and active water fracturing fluid for fracturing of coal bed gas well |
| 09/05/2012 | CN101629075B Oil fracturing proppant containing coal gangue |
| 09/04/2012 | US8258339 Hydrolyzed nitrilotriacetonitrile compositions, nitrilotriacetonitrile hydrolysis formulations and methods for making and using same |
| 09/04/2012 | US8258085 Oil-well cement fluid loss additive compostion |
| 09/04/2012 | US8258084 Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions |
| 09/04/2012 | US8258083 Method for the fracture stimulation of a subterranean formation having a wellbore by using impact-modified thermoset polymer nanocomposite particles as proppants |
| 09/04/2012 | US8256511 Use of a heavy petroleum fraction as a drive fluid in the recovery of hydrocarbons from a subterranean formation |
| 09/04/2012 | CA2742256C Environmentally friendly fracturing and stimulation composition and method of using the same |
| 09/04/2012 | CA2711515C Viscoelastic surfactant based wellbore fluids and methods of use |
| 08/30/2012 | WO2012116269A2 Composition and method for treating well bore in a subterranean formation with crosslinkers polymer fluids |
| 08/30/2012 | WO2012116230A1 Alkaline microbial enhanced oil recovery |
| 08/30/2012 | WO2012116032A1 Chelate compositions and methods and fluids for use in oilfield operations |
| 08/30/2012 | WO2012115792A1 Metallic nanoparticle biocide in industrial applications |
| 08/30/2012 | WO2012115532A1 Bitumen emulsions for oilfield applications |
| 08/30/2012 | WO2012113861A1 Compositions comprising alkylalkoxysulfonates for the production of high temperature stable foams |