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

20070225174 - Method of treating oil or gas well with biodegradable emulsion: A biodegradable water-in-synthetic oil base emulsion, effective in the removal of filter cakes, consists of an external phase of a surfactant emulsified in a paraffinic base oil. The emulsion is particularly effective in breaking-down the interfacial rheological properties of oil base mud and synthetic oil base mud filter cakes and... Agent: Jones & Smith, LLP

20070225175 - Application of degradable polymers in well fluids: Degradable polylactic or polyhydroxyalkanoate polymers may be used to viscosify aqueous fluids for use in wells, Sand control screen or liner can be coated with a solid degradable polymer during placement in a well. Mechanical changes or flow changes in a well can be caused by solid degradable polymer that... Agent: Burleson Cooke L.L.P.

20070225176 - Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells: The present invention includes composition having a nonionic, fluorinated polymeric surfactant, water and solvent. Embodiments of compositions according to the present invention are useful, for example, for recovering hydrocarbons from subterranean clastic formations.... Agent: Chalker Flores, LLP

20070219097 - Emulsifiers for drilling fluids: The invention relates to use of surfactant mixtures in drilling fluids, the mixtures are produced by reacting an aqueous solution of at least one alkyl oligoglycoside and/or alkenyl oligoglycoside with an omega haloacid, or its salts or esters in the presence of an alkali. The mixtures are suitable for use... Agent: Cognis Corporation Patent Department

20070219098 - Emulsifiers for drilling fluids: The invention relates to the use of surfactant mixtures containing alkyl oligoglycosides and alkenyl oligoglycosides (APG) of formula (1), RO-[G]p, in which R represents an alkyl and/or alkenyl radical comprising between 4 and 22 carbon atoms, G represents a sugar radical comprising 5 or 6 carbon atoms and p represents... Agent: Cognis Corporation Patent Department

20070213229 - Process for reducing the toxicity of hydrocarbons: This invention relates to a method for reducing the toxicity of a mixture of hydrocarbons by means of fractional distillation, a distillate having a reduced toxicity and a composition including the distillate.... Agent: Knobbe Martens Olson & Bear LLP

20070213230 - Fast dissolving hydroxyalkyl guar derivatives: The present invention relates to hydrophobically modified hydroxyalkyl guar derivatives which dissolve rapidly in water, having a hydroxyalkyl molar substitution between 0.2 and 2.5 and containing hydrophobic groups comprising C10-C32 alkyl chains, to the procedure for their preparation and to their use in the formulation of well fluids.... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20070213231 - Paraffin inhibitor compositions and their use in oil and gas production: Disclosed are paraffin inhibitors prepared by admixing a polymer having the characteristic of inhibiting paraffin crystalline growth in formation fluid from oil and gas wells with a first solvent selected from the weak to moderate wax solvents and a second solvent selected from the strong wax solvents. Exemplary weak to... Agent: Madan, Mossman & Sriram, P.C.

20070213232 - Viscoelastic surfactant gels with reduced salt concentration: A well bore treatment fluid of viscoelastic surfactants and methods for increasing the viscosity of the fluid at high temperature without increasing its salt concentration by adding a organic hydrophilic-lipophilic compound and reducing the salt concentration below 6 percent.... Agent: Schlumberger-doll Research Attn: Intellectual Property Law Department

20070213233 - Diverting compositions, fluid loss control pills, and breakers thereof: A method of treating a well that includes selectively emplacing a fluid loss pill into the well, wherein the fluid loss pill includes at least one of diethylene glycol, triethylene glycol, and tetraethylene glycol, and wherein the at least one of diethylene glycol, triethylene glycol, and tetraethylene glycol reacts with... Agent: Osha Liang/mi

20070207932 - Clay inhibitors for the drilling industry: The present invention relates to a method for inhibiting hydration of clays in drilling operations comprising the use of an aqueous based drilling fluid containing from 0.2 to 5 wt % of 1,2-cyclohexanediamine and/or its salts.... Agent: Paul S Madan Madan, Mossman & Sriram, PC

20070207933 - Treatment fluids comprising friction reducers and antiflocculation additives and associated methods: Methods comprising: providing an aqueous treatment fluid comprising an aqueous fluid, a friction reducing polymer, and an antiflocculation additive; and introducing the treatment fluid into a subterranean formation. Methods of fracturing a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid, a friction reducing polymer, and an... Agent: Halliburton Energy Services, Inc.