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)
02/2011
02/10/2011US20110034353 Method of Preparing a Nanoparticulate Iron - Crown Ether Complex
02/10/2011US20110034352 Rheology modifier for polymer fluids
02/10/2011US20110034351 Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods
02/10/2011US20110033558 Polymers produced by using sulphur compounds in the form of transfer agents for controlled radical polymerisation of acrylic acid and the use thereof
02/10/2011US20110031024 Treated with quaternary ammonium surfactants having at least two amide linkages; preventing marine environment and groundwater contamination
02/10/2011US20110030961 Treatment of Fluids that Increase in Viscosity at or Above a Threshold Temperature and Methods of Formulating and Using Such Fluids
02/10/2011US20110030959 Aqueous Solution For Managing Microbes In Oil And Gas Production And Method For Their Production
02/10/2011US20110030956 Altering the interface of hydrocarbon-coated surfaces
02/10/2011US20110030953 Gelled liquid hydrocarbon treatment fluids and their associated methods of use
02/10/2011US20110030587 Agglomerated particulate lignosulfonate
02/09/2011CN101970602A Method and composition for enhanced hydrocarbons recovery
02/09/2011CN101970601A Method and composition for enhanced hydrocarbons recovery
02/09/2011CN101970600A Method and composition for enhanced hydrocarbons recovery
02/09/2011CN101970599A Method and composition for enhanced hydrocarbons recovery
02/09/2011CN101970598A Treatment fluids comprising clarified xanthan and associated methods
02/09/2011CN101967372A Water-based well drilling viscosity reducer and synthesis method thereof
02/09/2011CN101967371A High temperature resistant oil well cement retarder and preparation method thereof
02/09/2011CN101967370A Packing fluid for branch well drilling
02/09/2011CN101967369A Comb-like polymer fluid loss additive for drilling fluid and preparation method thereof
02/09/2011CN101280181B Surfactant composition and use thereof
02/09/2011CN101280180B Surfactant composition and use thereof
02/09/2011CN101280179B Surfactant composition and use thereof
02/09/2011CN101220733B Foam pre-evolution liquid device
02/08/2011US7884057 Quaternary ammonium compounds with two cationic sites connected through a linker; hydraulic fluids, demulsifiers, foamers, organoclays, thickeners, biocides, and oil field fluids.
02/08/2011US7884056 star block polymers comprising core and macromolecular branches; for controlling formation of viscoelastic gels
02/08/2011US7884055 Ceramic microspheres for cementing applications
02/08/2011CA2609295C Methods of treating surfaces in subterranean formations
02/08/2011CA2556068C Delayed tackifying compositions and associated methods involving controlling particulate migration
02/08/2011CA2416562C A cementing composition including a dispersant agent for cementing operation in oil wells
02/03/2011WO2011014666A1 Method to control driving fluid breakthrough during production of hydrocarbons from a subterranean reservoir
02/03/2011WO2011014653A2 Methods for thickening hydrophobic liquids with amphiphilic esters
02/03/2011WO2011014057A1 A method and system for removing organic deposits
02/03/2011WO2011013025A1 Microemulsion to improve shale gas production by controlling water imbibition
02/03/2011WO2011012922A1 Compositions and methods for servicing subterranean wells
02/03/2011WO2011012921A1 Compositions and methods for servicing subterranean wells
02/03/2011WO2011012861A1 Methods of fluid loss control and fluid diversion in subterranean formations
02/03/2011WO2011012164A1 Method of fracturing subterranean formations
02/03/2011WO2011011878A1 Drilling fluid additive comprising an oil and multiple guar compounds
02/03/2011WO2010126925A3 Wellbore fluids employing sacrificial viscosifiers
02/03/2011US20110028594 Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use
02/03/2011US20110028593 Weighted Elastomers, Cement Compositions Comprising Weighted Elastomers, and Methods of Use
02/03/2011US20110028360 Organic corrosion inhibitor package for organic acids
02/03/2011US20110028359 Method and composition for enhanced hydrocarbons recovery
02/03/2011US20110028358 Methods of Fluid Loss Control and Fluid Diversion in Subterranean Formations
02/03/2011US20110028357 System, method and apparatus for enhancing wellbore treatment fluid flexibility
02/03/2011US20110028356 Annular fluids and method of emplacing the same
02/03/2011US20110028355 Non-estrogenic alkylphenol derivatives
02/03/2011US20110028354 Method of Stimulating Subterranean Formation Using Low pH Fluid Containing a Glycinate Salt
02/03/2011US20110024129 Powder coated proppant and method of making the same
02/03/2011US20110024128 Enhancing Emulsion Stability
02/03/2011US20110024114 Cement composition comprising mixture of organic and inorganic fibres for curing severe losses especially in the reservoir section
02/03/2011US20110024113 Visco-elastic surfactant spacers
02/03/2011CA2801699A1 Methods for thickening hydrophobic liquids with amphiphilic esters
02/03/2011CA2769173A1 Microemulsion to improve shale gas production by controlling water imbibition
02/03/2011CA2769009A1 Compositions and methods for servicing subterranean wells
02/03/2011CA2768936A1 Method to control driving fluid breakthrough during production of hydrocarbons from a subterranean reservoir
02/02/2011EP2280051A1 Secondary emulsifiers for inverted emulsion fluids and methods for making an using same
02/02/2011CN101962531A Multi-functional poly-inorganic salt flooding synergist for tertiary oil recovery and production method thereof
02/02/2011CN101962530A Oil and gas field region well-prospecting and well-cementing cement secondary slurry process
02/02/2011CN101962421A Method for preparing cationic viscosity reducer
02/02/2011CN101230257B Method for preparation of lignite resin drilling fluid loss additive
02/02/2011CN101220264B Method of producing acidic crosslinking agent for CO2 foam compression fracture
02/02/2011CN101182410B Oil field inhibitor
02/01/2011US7879965 Gypsum wallboard
02/01/2011US7879771 Non-flammable, non-aqueous group IVB metal alkoxide crosslinkers and fracturing fluid compositions incorporating same
02/01/2011US7879770 Oil field treatment; subterranean
02/01/2011US7879769 Quaternary ammonium compounds with two cationic sites connected through a linker; hydraulic fluids, demulsifiers, foamers, organoclays, thickeners, biocides, and oil field fluids.
02/01/2011US7879768 Drilling fluid composition comprising hydrophobically associating polymers and methods of use thereof
02/01/2011US7879767 A gelled aqueous viscoelastic treating fluid of an aqueous base fluid, a non-ionic amine oxide viscoelastic surfactant gelling agent; and the aqueous viscoelastic treating fluid additive soluble in the fluid and consisting of polyamines, polyvinyl alcohols, and/or polycaprolactams; fracturing oil wells
01/2011
01/27/2011WO2011011284A1 Single-well diagnostics and increased oil recovery by oil injection and sequential waterflooding
01/27/2011WO2010099055A3 Peracid oil-field viscosity breaker and method
01/27/2011US20110021389 Method and composition for enhanced hydrocarbons recovery
01/27/2011US20110021388 Microemulsifiers and methods of making and using same
01/27/2011US20110021387 Reversible gelling system and method using same during well treatments
01/27/2011US20110021386 Microemulsion to improve shale gas production by controlling water imbibition
01/27/2011US20110021385 Secondary emulsifiers for inverted emulsion fluids and methods for making and using same
01/27/2011US20110021384 Drilling fluid additive and methods of stabilizing kaolinite fines migration
01/27/2011US20110017462 Method and composition for enhanced hydrocarbons recovery
01/27/2011US20110017457 Environmental compositions and methods for well treatment
01/27/2011US20110017452 Spacer Fluids Containing Cement Kiln Dust and Methods of Use
01/27/2011CA2768572A1 Single-well diagnostics and increased oil recovery by oil injection and sequential waterflooding
01/26/2011EP2276906A2 Swellable compositions for borehole applications
01/26/2011CN101959993A Method and composition for enhanced hydrocarbons recovery
01/26/2011CN101959992A Systems and methods for producing oil and/or gas
01/26/2011CN101955770A Main acid for oil well drilling and multi-hydrogen acid acidulating system with main acid
01/26/2011CN101955769A Method for preparing surface active agent for tertiary oil recovery
01/26/2011CN101955768A Surfactant used for displacement of reservoir oil, preparation method and application thereof in tertiary oil recovery
01/26/2011CN101955767A Gemini surfactant for tertiary oil recovery chemical oil-displacing agent and preparation method thereof
01/26/2011CN101955766A Sulphur removal corrosion inhibitor and preparation method thereof
01/26/2011CN101955765A Flushing fluid for oil well lined with oil tube
01/26/2011CN101955764A Clay-free drilling fluid filter cake removing system
01/26/2011CN101955763A High pressure-resistant leak stoppage agent and leak stoppage slurry containing same
01/26/2011CN101955762A Well-drilling completion fluid composition for reservoir protection of petroleum engineering and preparation method thereof
01/26/2011CN101955761A Imitated oil base high-density drilling fluid
01/26/2011CN101955760A Solid phase-free drilling fluid
01/26/2011CN101955759A Method for preparing high-temperature resistant silicon diluting agent
01/26/2011CN101955758A Method for preparing high-temperature resistant and salt resistant shear strength-improving agent for drilling fluid
01/26/2011CN101955757A Hydrolyzed polyacrylonitrile-compound ammonium salt for drilling fluid
01/26/2011CN101955584A Preparation method of alkanolamide polyoxyethylene ether and application thereof
01/26/2011CN101955565A Method for preparing high temperature-resistant and salt resistant fluid loss agent for drilling fluid