Earth boring, well treating, and oil field chemistry inventions 07/09

20090192051 - High temperature stabilizer for well treatment fluids and methods of using same: A high temperature well treatment fluid comprising an electron donating compound comprising phenothiazine as thermal decomposition reduction additives for gels used in well treatment fluids is provided. The electron donating compound comprising phenothiazine performs as a stabilizer in well treatment fluids at temperatures of up to about 500° F. (260°... Agent: Howrey LLP

20090192052 - High performance drilling fluids with submicron-size particles as the weighting agent: Methods and compositions utilizing a drilling fluid comprising sub-micron precipitated barite having a weight average particle diameter below about 1 micron. Methods include a method comprising circulating a drilling fluid in a well bore, wherein the drilling fluid comprises: a carrier fluid; and a weighting agent that comprises sub-micron precipitated... Agent: Craig W. Roddy Halliburton Energy Services

20090192053 - Methods and compositions for delayed release of chemicals and particles: Agents, chemicals and particles may be controllably released at remote locations, such as pre-selected or predetermined portions of subterranean formations, by binding or associating or trapping them with an association of micelles formed by a viscoelastic surfactant (VES) in an aqueous base fluid to increase the viscosity of the fluid.... Agent: Madan & Sriram, P.C.

20090192054 - Method for single-stage treatment of siliceous subterranean formations: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than... Agent: Schlumberger Technology Corporation David Cate

20090192055 - Stabilized aqueous polymer compositions: The aqueous polymer composition comprises a water soluble polymer having a molar weight of at least 104 Daltons and comprising functional groups which may form complexes with metal ions. The aqueous polymer compositions of this invention are stabilized against thermal or other degradation processes by addition of a phenothiazine compound... Agent: Ferrells, PLLC

20090192056 - Friction loss reduction in viscoelastic surfactant fracturing fluids using low molecular weight water-soluble polymers: Adding relatively low molecular weight water-soluble friction loss reduction polymers to an aqueous fluid gelled with a viscoelastic surfactant (VES) increases the critical generalized Reynold's number at which the Fanning friction factor increases and friction pressure starts to increase rapidly. The water-soluble polymeric friction loss reduction additives lower surface pumping... Agent: Madan & Sriram, P.C.

20090192057 - Method for single-stage treatment of siliceous subterranean formations: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than... Agent: Schlumberger Technology Corporation David Cate

20090192058 - Compositions and methods of treating high temperature subterranean formations: Compositions and methods of treating high temperature subterranean formations of up to about 500° F. (260° C.) are provided. The compositions and methods utilize a high molecular weight synthetic copolymer and a pH buffer than maintains a pH in a range of about 4.5 to about 5.25 for the compositions.... Agent: Howrey LLP

20090192059 - Precursor compositions for ceramic products: A precursor composition for the production of granulated ceramic material to be used as hydraulic fracture proppant, comprises 20 to 55% pyroxene, and 15 to 50% olivine. The remaining component is quartz and/or feldspar. The precursor composition can be sintered in a broader temperature range. The resulting proppant material shows... Agent: Weingarten, Schurgin, Gagnebin & Lebovici LLP

20090186781 - Drilling fluids comprising sub-micron precipitated barite as a component of the weighting agent and associated methods: An embodiment of the present invention includes a method comprising circulating a drilling fluid in a well bore, wherein the drilling fluid comprises a carrier fluid; and a weighting agent that comprises precipitated barite having a weight average particle diameter below about 1 micron and a particle having a specific... Agent: Craig W. Roddy Halliburton Energy Services

20090186782 - Mixed demulsifier of asp flooding produced liquid: The present invention discloses a mixed demulsifier of ASP flooding production liquid. The demulsifier consists of a functional demulsifier from 70 to 30% by mass and a mixed solvent from 30 to 70% by mass based on the mass of the demulsifier; the functional demulsifier is formed by mixing a... Agent: Sughrue Mion, PLLC

20090181865 - Well treatment composition crosslinkers and uses thereof: This invention relates to compositions used in treating subterranean formations, which include a hydrated polymer, and a dry blended multi-functional component. The hydrated polymer and dry blended multi-functional component are mixed at the ground surface of a wellsite, and subsequently injected into the formation providing controlled delay in crosslinking to... Agent: Schlumberger Technology Corporation David Cate

20090181866 - Methods and compositions for altering the viscosity of treatment fluids used in subterranean operations: An embodiment of the present invention includes a method comprising introducing a cyclodextrin modifier into a well bore penetrating a subterranean formation. Another embodiment of the present invention includes a method of reducing viscosity of a treatment fluid comprising contacting a treatment fluid comprising a base fluid and a viscosifying... Agent: Robert A. Kent

20090181867 - Corrosion inhibitors for oilfield applications: Imidazoline dimer-type compounds which are prepared by the reaction of dimer fatty acid and a dialkylene triamine, such as diethylenetriamine (DETA), are useful for corrosion inhibition in water-containing fluids contacting metal, particularly fluids containing CO2 and/or H2S. When the reaction is conducted with molar excess of the polyamine, the resulting... Agent: Madan & Sriram, P.C.

20090181868 - Non-emulsifying anti-sludge composition for use in the acid treatment of hydrocarbon wells: A composition for inhibiting or preventing the formation of emulsions and asphaltic sludges in the presence of treating acids during the acid stimulation of hydrocarbon wells is provided. The composition includes an alkyl aryl sulfonic acid or salt thereof, an acetylenic alcohol, an alkyl diphenyl oxide sulfonic acid or derivative... Agent: Howrey LLP

20090176665 - Self-degrading fibers and associated methods of use and manufacture: This invention relates to the use of degradable fibers, and more particularly, to self-degrading fibers and their associated methods of use and manufacture. In one embodiment, the present invention provides a self degrading fiber comprising: an outer shell, and a core liquid.... Agent: Attn: Robert A. Kent Halliburton Energy Services

20090176666 - Drilling fluids containing biodegradable organophilic clay: where M− is an anion such as a chloride, methyl sulfate, bromide, acetate, or iodide ion; R1 is an alkyl group such as a saturated hydrocarbon with 10 or more carbons; R2, R3, and R4 are the same or different alkyl groups such as a methyl, ethyl, or benzyl group,... Agent: Craig W. Roddy Halliburton Energy Services

20090176667 - Expandable particulates and methods of their use in subterranean formations: Methods are provided that include a method comprising providing a treatment fluid comprising at least a plurality of expandable particulates comprising a swellable elastomer composition. In some embodiments the expandable particulates may comprise a swellable elastomer and a filler material. In some embodiments the expandable particulates may comprise a solid... Agent: Robert A. Kent

20090170730 - Silicate drilling fluid composition containing lubricating agents and uses thereof: The present disclosure relates to the compositions of a water-based silicate drilling fluid comprising: (1) alkali metal silicates; (2) cationic polyacrylamide; (3) a lubricant composition; and (4) other conventional drilling fluid additives. The lubricant composition comprises a lubricating effective amount of a carrier oil and one or more lubricants selected... Agent: Rothwell, Figg, Ernst & Manbeck, P.C.

20090170731 - Conductivity enhancing structures for use with proppants in oil and gas wells: A mixture of proppant particles and conductivity enhancing structures is disclosed. The spherically shaped proppant particles have convex surfaces. The conductivity enhancing structures include concave surfaces. The proppant particles' convex surfaces abut the conductivity enhancing structures concave surfaces.... Agent: Saint-gobain Norpro

20090170732 - Scale inhibiting well treatment: Provided is a method for inhibiting scale formation within a hydrocarbon producing system, said method comprising contacting said system with a polymer formed from a diallyl ammonium salt, a monomer comprising one carboxylate group and a monomer comprising at least two carboxylate groups or an anhydride group. Also provided are... Agent: Ballard Spahr Andrews & Ingersoll, LLP