Earth boring, well treating, and oil field chemistry inventions

20090270280 - Water-in-oil emulsions with hydrogel droplets background: Methods and compositions are provided that include a water-in-oil composition comprising an oil-based continuous phase and a discontinuous phase that comprises at least a plurality of hydrogel droplets and a method comprising providing a water-in-oil emulsion comprising an oil-based continuous phase and a discontinuous phase that comprises at least a... Agent: Craig W. Roddy Halliburton Energy Services

20090270281 - Use of surfactant mixtures for tertiary mineral oil extraction: The use of a surfactant mixture comprising at least one surfactant having a hydrocarbon radical composed of from 12 to 30 carbon atoms and at least one cosurfactant having a branched hydrocarbon radical composed of from 6 to 11 carbon atoms for tertiary mineral oil extraction.... Agent: Connolly Bove Lodge & Hutz LLP

20090270282 - Process of hydraulic fracturing: Hydraulic fracturing of a subterranean hydrocarbon reservoir is carried out using an aqueous wellbore fluid which is an aqueous solution of a surfactant which has the formula(R1−X)nZ, where R1 is an aliphatic group comprising a C10-C25 principal straight chain bonded at a terminal carbon atom thereof to X, and comprising... Agent: Schlumberger-doll Research Attn: Intellectual Property Law Department

20090264321 - Composition and method for recovering hydrocarbon fluids from a subterranean reservoir: This invention is directed to a composition comprising encapsulated expandable polymeric microparticles including expandable base microparticles encapsulated in a shell of at least one layer of a labile or degradable encapsulation material. The encapsulated microparticles have an unexpanded volume average particle size diameter of from about 0.05 to about 5,000... Agent: Nalco Company

20090264322 - Composition and method for recovering hydrocarbon fluids from a subterranean reservoir: This invention is directed to a composition comprising expandable polymeric microparticles comprising hydrophobic polymers having a backbone with labile pendant groups, the microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 5,000 microns. Labile pendant groups on the backbone are subject to hydrolysis under... Agent: Nalco Company

20090264323 - Consolidated proppants having high mechanical strength and process for the preparation thereof: i

20090264324 - Composition and method for recovering hydrocarbon fluids from a subterranean reservoir: This invention is directed to a composition comprising crosslinked expandable polymeric microparticles comprising structured polymers having labile crosslinks or having a labile core and non-labile crosslinks. The starting configuration of the structured polymers constrains the microparticle to an unexpanded volume average particle size diameter of from about 0.05 to about... Agent: Nalco Company

20090264325 - Compositions and methods for recovering hydrocarbon fluids from a subterranean reservoir: The present disclosure is directed to compositions and methods for enhanced oil recovery, for modifying the permeability of subterranean formations and for increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations. The compositions may include, for example, expandable cross-linked polymeric microparticles having unexpanded volume average particle... Agent: Nalco Company

20090258798 - Methods and compositions using crosslinked aliphatic polyesters in well bore applications: Methods and compositions including a method comprising: providing a treatment fluid comprising a carrier fluid and a solid particle comprising a crosslinked aliphatic polyester; and placing the treatment fluid into a subterranean formation.... Agent: Robert A. Kent

20090258800 - Methods for minimizing the amount of graphite particles used during drilling operations: Methods for minimizing the amount of graphite particles used during drilling operations... Agent: Paula D. Morris The Morris Law Firm, P.C.

20090258799 - Wellbore fluids possessing improved rheological and anti-sag properties: A wellbore fluid that includes a base fluid; a weighting agent having a d90 greater than 30 microns; and a micronized weighting agent having a d90 less than 25 microns, the micronized weighting agent comprising less than 30 percent by volume of the total weighting agents is disclosed herein.... Agent: Osha Liang/mi

20090258801 - Fluid-loss control pills comprising breakers that comprise orthoesters and/or poly(orthoesters) and methods of use: Provided herein are methods and compositions for generating acids for use downhole, for example, to break fluid-loss control pills. The delayed-release acid breakers of the present invention comprise orthoesters and/or poly(orthoesters).... Agent: Robert Kent Halliburton Energy Services, Inc.

20090253593 - Solid product for preparing a drilling fluid: A granulated calcium bromide product is provided, and a method for its manufacture. The product, obtained by wet granulation or by dry granulation, contains at least 80 wt. % calcium bromide, and it is particularly suitable for preparing dense calcium bromide brines used as a drilling fluid.... Agent: Kevin D. Mccarthy Roach Brown Mccarthy & Gruber, P.C.

20090253594 - Methods for placement of sealant in subterranean intervals: Of the many methods provided herein, one method includes a method of treating an interval of a subterranean formation having a permeability that varies comprising: identifying the interval to be treated; introducing a relative-permeability modifier into the interval, wherein the relative-permeability modifier modifies the interval to have a more uniform... Agent: Robert A. Kent

20090253595 - Surfactants for hydrocarbon recovery: This invention provides compositions comprising an aqueous well fluid and at least one nonionic acetylenic alcoholic surfactant. The compositions may further comprise at least one fluoroaliphatic surfactant. Methods for recovery of aqueous well fluids involving the use of at least one nonionic acetylenic alcoholic surfactant are also provided, and these... Agent: Mcglinchey Stafford, PLLC Attn:IPGroup

20090253596 - Fluid loss control agents for viscoelastic surfactant fluids: Alkaline earth metal compounds may be fluid loss control agents for viscoelastic surfactant (VES) fluids used for well completion or stimulation in hydrocarbon recovery operations. The VES fluid may further include proppant or gravel, if it is intended for use as a fracturing fluid or a gravel packing fluid, although... Agent: Mossman, Kumar And Tyler, PC