Patents
Sitemap › C09 - Dyes; Paints; Polishes; Natural resins; Adhesives; Compositions not otherwise provided for; Applications of materials not otherwise provided for › C09K - Materials for applications not otherwise provided for; Applications of materials not otherwise provided for › C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
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)
08/2010
08/18/2010EP2217790A1 Methods of integrating analysis, auto-sealing, and swellable- packer elements for a reliable annular seal
08/18/2010EP2217673A1 Imidazoline-based heterocyclic foamers for downhole injection
08/18/2010EP2217672A2 Method of inhibiting salt precipitation from aqueous streams
08/18/2010EP2217671A2 Method of enhancing adsorption of an inhibitor onto a wellbore region
08/18/2010EP1660771B1 Air-intake duct system for a combustion engine
08/18/2010CN1970484B Swelled perlite and its preparation method, its uses as modified microbead in producing high intensity low density oil well cement
08/18/2010CN101809115A Single phase microemulsions and in situ microemulsions for cleaning formation damage
08/18/2010CN101805601A Break-free fracturing fluid
08/18/2010CN101805600A Gelled fracturing fluid being applicable to coalbed methane reservoir
08/18/2010CN101805599A Crosslinked polycation oil displacement agent and preparation method thereof
08/18/2010CN101805598A Multifunctional regulating, plugging and driving reagent for oil-gas field
08/18/2010CN101805597A Solid corrosion and scale inhibitor for oil field
08/18/2010CN101805596A Non-floating bead low-density oil-well cement
08/18/2010CN101805595A Synthesis method of drilling fluid filtrate reducer
08/18/2010CN101805594A Oil drilling slurry viscosity reducer
08/18/2010CN101805418A Process for making improved aliphatic dicarboxylic acid copolymers
08/18/2010CN101302266B Water-soluble micro-crosslinked copolymer, preparation and use thereof
08/18/2010CN101135237B Method for preparing down-hole gel valve and construction method thereof
08/17/2010US7776931 Low dosage naphthenate inhibitors
08/17/2010US7776930 adding inhibitor such as a surfactant having hydrophilic portion and oleophilic portion to a mixture of water and oil in an amount that is effective to inhibit cations in the water and organic acid in the oil from interacting along oil-water interface, reducing the pressure to release carbon dioxide gas
08/17/2010US7776798 Pumping an aqueous fracturing fluid containing a quaternary alkylamino- or alkylamidoalkylammmonium cationic surfactant (erucylamidopropyltrimethyl ammonium chloride) and an organic or inorganic salt, organic acid, or alcohol through a wellbore and into a subterranean formation to fracture the formation
08/17/2010US7776797 a crosslinkable copolymer of butyl acrylate/tert-/ and acryamide, polyethylenimine as crosslinking agent; filler is alkyl quaternary ammonium montmorillonite; for introducing the formulation into a wellbore and penetrating a subterranean formation to reduce the loss of fluid to the formation
08/17/2010US7776796 using recyclable-viscosity fluids containing at least a sphingan heteropolysaccharide (gellan gum, welan gum, diutan gum and rhamsan gum) and an optional salt, performing wellbore cleanout operation; reduce pumping frictional pressure
08/17/2010US7776795 Microbial Enhanced Oil Recovery; pure microorganisms are used under anaerobic denitrifying conditions to modify the properties of heavy crude oil in order to enhance the recovery of the crude oil from its underground reservoir; production of biosurfactants which decrease surface tensions; bioremediation
08/17/2010CA2595460C Microemulsion containing oil field chemicals useful for oil and gas field applications
08/17/2010CA2590546C Methods for controlling migration of particulates in a subterranean formation
08/17/2010CA2530239C Well treating compositions for slow release of treatment agents and methods of using the same
08/17/2010CA2530147C Tagged scale inhibiting polymers, compositions comprising the same, and method for preventing or controlling scale formation
08/17/2010CA2486407C Use of anionic dispersion polymers as viscosity modifiers in aqueous drilling fluids
08/12/2010WO2010091385A1 Friction reducing compositions for well treatment fluids and methods of use
08/12/2010WO2010089528A1 Methods and compositions comprising a dual oil/water-swellable particle
08/12/2010WO2010065634A3 Lubricant for water-based muds and methods of use thereof
08/12/2010US20100204071 Aqueous particulate slurry compositions and methods of making same
08/12/2010US20100204070 Low density composite propping agents
08/12/2010US20100204069 METHOD OF STIMULATING SUBTERRANEAN FORMATION USING LOW pH FLUID
08/12/2010US20100204068 Methods for controlling depolymerization of polymer compositions
08/12/2010US20100204067 Drilling Fluid Additive and Method for Improving Lubricity or Increasing Rate of Penetration in a Drilling Operation
08/12/2010US20100204066 Water absorbing polymers for treatment of brines and water-based drilling fluids
08/12/2010US20100200239 Friction reducing compositions for well treatment fluids and methods of use
08/12/2010US20100200235 Degradable perforation balls and associated methods of use in subterranean applications
08/11/2010EP2216384A1 A process for creating enhanced cavitation
08/11/2010EP2215200A2 Method for producing an organic composition containing an n-nonyl ether
08/11/2010EP2215181A1 High temperature fracturing fluids and method of use
08/11/2010EP2215180A1 Method of formation of hydrate particles in a water-containing hydrocarbon fluid flow
08/11/2010EP2215178A1 Thermally stable compositions and use thereof in drilling fluids
08/11/2010CN101802128A Improved process for enhanced oil recovery
08/11/2010CN101801513A Method for treatment of high pH silica brines
08/11/2010CN101798504A Multi-effect thickening agent for fracturing and preparation method thereof
08/11/2010CN101798503A Novel polymeric oil-displacing agent for improving recovery ratio and application thereof
08/11/2010CN101798502A Antisludging agent for preventing deposition of Sr/Ba scale
08/11/2010CN101798501A Crude oil wax-proofing bar and preparation method thereof
08/11/2010CN101798500A Plugging agent with double plugging function and filling method thereof
08/11/2010CN101798499A Strong inhibition type anti-collapse foam liquid for drilling
08/11/2010CN101798274A Application of amphoteric surfactant in tertiary oil recovery, preparation method and application method of surfactant
08/11/2010CN101797212A Hydrophilic and oleophilic composite
08/11/2010CN101260163B In-situ polymerization intercalated composite gel material and its preparation method and application
08/10/2010US7772166 Conductive cement formulation and application for use in well
08/10/2010US7772165 Quaternary ammonium compounds with two cationic sites connected through a linker; hydraulic fluids, demulsifiers, foamers, organoclays, thickeners, biocides, and oil field fluids.
08/10/2010US7772164 Multicomponent viscoelastic surfactant fluid and method of using as a fracturing fluid
08/10/2010US7772163 Well treating composite containing organic lightweight material and weight modifying agent
08/10/2010US7772162 Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells
08/10/2010US7772161 to improve the lubricity of the mud as well as aiding in wellbore cleaning, prevention of bit balling and reduction of fluid loss to thief zones; scouring agent comprises ground elastomer particles from 0.5 to 4000 microns; non-aqueous fluid or an oil-based drilling mud absorbed by elastomer
08/10/2010US7772160 Method for controlled placement of additives in oil and gas production
08/10/2010US7771588 Separatory and emulsion breaking processes
08/10/2010US7770666 Drilling fluid containing a recoverable lost circulation material and method of using and recovering the same
08/10/2010CA2557381C Co2 miscible optimized hydrocarbon blends and methods of using co2 miscible optimized hydrocarbon blends
08/10/2010CA2372329C Methods and compositions for treating subterranean formations with gelled hydrocarbon fluids
08/10/2010CA2346169C Cementing compositions and the use of such compositions for cementing oil wells or the like
08/05/2010WO2010088484A2 Defluidizing lost circulation pills
08/05/2010WO2010088090A1 Making proppant used in gas or oil extraction
08/05/2010WO2010087733A1 Polymer emulsions and well treatment fluids
08/05/2010WO2010087732A1 Method of preparing polymer-water emulsion and further settling a sticky polymer material in downhole environment
08/05/2010WO2010086611A1 Methods for treating a well by simultaneously introducing into a mixer streams of water, a viscosity-increasing agent, and a particulate and introducing the mixture into the well
08/05/2010WO2010086592A1 Methods for servicing well bores with hardenable resin compositions
08/05/2010US20100197532 Method of making proppant used in gas or oil extraction
08/05/2010US20100197531 Use of Oil-Soluble Surfactants as Breaker Enhancers for VES-Gelled Fluids
08/05/2010US20100197530 Oil field treatment fluids with viscosified brines
08/05/2010US20100197529 Process for enhanced oil recovery
08/05/2010US20100197528 Degradable gels in zonal isolation applications
08/05/2010US20100197527 Methods and compositions relating to the hydrolysis of water-hydrolysable materials
08/05/2010US20100197526 Method for making particulate slurries and particulate slurry compositions
08/05/2010US20100193244 Drilling Fluid Additive for Reducing Lost Circulation in a Drilling Operation
08/05/2010US20100193189 Proppant and method for higher production of a well
08/05/2010CA2750898A1 Defluidizing lost circulation pills
08/05/2010CA2739580A1 Making proppant used in gas or oil extraction
08/04/2010CN101796156A Methods for producing oil and/or gas
08/04/2010CN101792661A Biological activator for compound production promoter used in oil production
08/04/2010CN101792660A Multi-functional nanometer oil well cement slurry
08/04/2010CN101260171B Comb-type structure activity polymer and its preparation technique and application
08/03/2010US7767630 Use of chalcogen heterocyclic electron donating compounds such as furan as heat stabilizing additives for oil field gels used in well treatment fluids such as drilling fluids, fracturing fluids, and well completion and workover fluids; allows use of water soluble gums in deep wells at high temperatures
08/03/2010US7767629 In an amount sufficient to reduce fluid density at least 15%, preferably at least 20% and most preferably at least 30%; may reduce density to that of ambient seawater
08/03/2010US7767628 foaming composition includes a polymer, a gelling agent and its cross-linking agent, an optional foaming agent, or mixtures or combinations thereof; use of this drilling fluid system in a variety of downhole applications
08/03/2010CA2595978C Methods and compositions relating to the hydrolysis of water-hydrolysable materials
08/03/2010CA2590169C Oilwell sealant compositions comprising alkali swellable latex
08/03/2010CA2557459C Compositions and methods for treating subterranean formations with liquefied petroleum gas
08/03/2010CA2528677C Compositions and methods for consolidating unconsolidated subterranean formations
08/03/2010CA2506278C A foamer/sulfur scavenger composition and methods for making and using same
08/03/2010CA2438115C Oleaginous drilling fluid that produces a useful soil amendment, method of use and bio-remediation of the same and resulting solids
08/03/2010CA2353726C Cementing compositions and application of such compositions for cementing oil wells or the like
07/2010
07/29/2010WO2010084442A1 Fluid loss additive and breaking agent
1 ... 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 ... 318