Earth boring, well treating, and oil field chemistry inventions 10/08

20080261834 - Method and composition for treatment of a well: The invention provides a material comprising: a core made of a solid material; a first layer surrounding the core made of a swellable material able to swell in contact with a fluid ; a second layer surrounding the first layer made of a glue material able to glue to a... Agent: Schlumberger Technology Corporation David Cate

20080261835 - Surfactant based compositions and process for heavy oil recovery: A process for recovering heavy oil with the steps of: a) injecting into one or more injection wells an aqueous injection fluid containing one or more surfactants designed to form a pseudo-emulsion between the injection fluid and the heavy oil, and, b) recovering the oil from one or more producing... Agent: Paul D. Berger

20080261836 - Compositions for use in well servicing fluids: A composition useful in a well servicing fluid comprising a base fluid, comprising from 5-40 wt. % paraffins, from 5-40 wt. % olefins, from 5-20 wt. % naphthenes, from 5-20 wt. % esters, and from 2-10 wt. % oxygenates comprising primarily alcohols and ethers, the base fluid being useful as... Agent: C. James Bushman

20080261837 - Low-density ceramic proppant and its production method: A low-density ceramic proppant is formed from a light aggregate of a natural mineral and a ceramic binding material in the form of a proppant granule. The light aggregate expands in volume when burnt so that the density of the aggregate is changed. A method of preparing a proppant material... Agent: Schlumberger Technology Corporation David Cate

20080261834 - Method and composition for treatment of a well: The invention provides a material comprising: a core made of a solid material; a first layer surrounding the core made of a swellable material able to swell in contact with a fluid ; a second layer surrounding the first layer made of a glue material able to glue to a... Agent: Schlumberger Technology Corporation David Cate

20080261835 - Surfactant based compositions and process for heavy oil recovery: A process for recovering heavy oil with the steps of: a) injecting into one or more injection wells an aqueous injection fluid containing one or more surfactants designed to form a pseudo-emulsion between the injection fluid and the heavy oil, and, b) recovering the oil from one or more producing... Agent: Paul D. Berger

20080261836 - Compositions for use in well servicing fluids: A composition useful in a well servicing fluid comprising a base fluid, comprising from 5-40 wt. % paraffins, from 5-40 wt. % olefins, from 5-20 wt. % naphthenes, from 5-20 wt. % esters, and from 2-10 wt. % oxygenates comprising primarily alcohols and ethers, the base fluid being useful as... Agent: C. James Bushman

20080261837 - Low-density ceramic proppant and its production method: A low-density ceramic proppant is formed from a light aggregate of a natural mineral and a ceramic binding material in the form of a proppant granule. The light aggregate expands in volume when burnt so that the density of the aggregate is changed. A method of preparing a proppant material... Agent: Schlumberger Technology Corporation David Cate

20080255009 - Polycationic viscoelastic compositions: Viscoelastic compositions are disclosed herein containing an effective amount of one or more random or structurally defined polycationic quaternary ammonium compounds for controlling the viscoelasticity of the composition. In one aspect, the present technology provides polycationic quaternary ammonium compounds that comprise bis-quaternary compound. The bis-quaternary compounds of the present technology... Agent: Mcandrews Held & Malloy, Ltd

20080248974 - Scale inhibiting well treatment: This invention provides a method for inhibiting scale formation within a hydrocarbon producing system, said method comprising contacting said system with a copolymer formed from a diallyl ammonium salt and at least one other monomer.... Agent: Ballard Spahr Andrews & Ingersoll, LLP

20080248975 - Drilling fluid: This invention is based upon the finding that certain chlorosulfonated α-olefin copolymers can be beneficially utilized in drilling fluids that are utilized in drilling subterreanean wells. For instance, it has been unexpectedly found that certain chlorosulfonated α-olefin copolymers can be beneficially used as total or partial replacements for organoclays in... Agent: Alvin T. Rockhill

20080248976 - Polycationic viscoelastic compositions: Viscoelastic compositions are disclosed herein containing an effective amount of one or more random or structurally defined polycationic quaternary ammonium compounds for controlling the viscoelasticity of the composition. In at least one aspect, the present technology provides polycationic quaternary ammonium compounds comprising bis-quaternary compounds. In another aspect, the present technology... Agent: Mcandrews Held & Malloy, Ltd

20080248977 - Polycationic viscoelastic compositions: Viscoelastic compositions are disclosed herein containing an effective amount of one or more random or structurally defined polycationic quaternary ammonium compounds for controlling the viscoelasticity of the composition. In at least one aspect, the present technology provides polycationic quaternary ammonium compounds comprising dissymmetric bis-quaternary compounds. In another aspect, the present... Agent: Mcandrews Held & Malloy, Ltd

20080248978 - Compositions and methods for water and gas shut-off in subterranean wells with ves fluids: Viscoelastic surfactant (VES) based fluid systems for zone isolation and flow control are effective in water and/or gas shutoff applications. The fluid systems may include brine, a viscosity enhancer, as well as the VES, and optionally a stabilizer for high temperature applications. The stabilizer may be an alkali earth metal... Agent: Madan, Mossman & Sriram, P.C.

20080242563 - Zirconium-based cross-linker compositions and their use in high ph oil field applications: A cross-linking composition which comprises (a) an aqueous liquid, (b) a cross-linkable organic polymer, and (c) a solution comprising a zirconium cross-linking agent which comprises a zirconium complex having a molar ratio of 1:2 to 1:4 of zirconium to triethanolamine and a molar ratio of 1:0.1 to 1:1 of zirconium... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center