Earth boring, well treating, and oil field chemistry inventions

20090275487 - Additive for increasing the density of an oil-based fluid and fluid comprising such additive: A method of formulating a wellbore fluid that includes grinding a solid particulate material and a polymeric dispersing agent to provide a resulting polymer coated solid material, and suspending the resulting polymer coated solid material in the wellbore fluid. At least a portion of the resulting polymer coated solid material... Agent: Legal Dept.,IPGroup M-i L.L.C.

20090275488 - Methods for increase gas production and load recovery: Methods are disclosed for improved sand control, fines control, load recovery and well productivity, where the compositions comprise reaction products of an amine and a phosphate-containing compound.... Agent: Robert W Strozier, P.l.l.c

20090275489 - Method and chemical agent for reduction of water production from oil and gas containing wells: Method and agent for reducing water production from oil and gas wells. The agent comprises polymer, cross-linked particles which are stable in water-free solvents. The particles are manufactured in an oil-in-oil emulsion and are cross-linked with at least one water-stable cross-liner and at least one water-labile cross-linker. The water-labile cross-linker... Agent: Legal Dept.,IPGroup M-i L.L.C.

20090275490 - Disproportionate permeability reduction using a viscoelastic surfactant: The invention discloses a method of for changing the water permeability of a subterranean formation of a well, the method comprising: providing a fluid comprising a liquid carrier and a viscoelastic surfactant; introducing the fluid into the well; and contacting the fluid and the subterranean formation wherein the action of... Agent: Schlumberger Technology Corporation David Cate

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