Rhodia Operations

Bj Services Company

Rhodia Limited

Energy Solutions (us) LLC

Solvay USA Inc.

Energysolutions, LLC

Subramanian Kesavan

Hoang Van Le

Jeffrey Carl Dawson

Gary Woodward

Jian Zhou

Herve Adam

Gilda Maria Lizarraga

Genyao Lin

Ruela Talingting Pabalan

Qi Qu

Manilal S Dahanayake

David James Wilson

Jean-Christophe Castaing

Bruno Langlois

Lawrence Alan Hough

Derek Pakenham

Hui Shirley Yang

Allwyn Colaco

Nemesio Martinez-Castro

Pierre Hennaux

Seren Frantz

Louis Villafane

Rose Ndong

Laurianne Timbart

Brian Chung

Adedamola Adedeji

Changmin Jung

Timothy Curtis

Scott Gregory Nelson

Arnaud Cadix

Marie-Pierre Labeau

Floryan Decampo

Amit Sehgal

Charles Aymes

Lingjuan Shen

Francis George Smith

David J Mack

Marie Pierre Labeau

Ahmed Rabie

Juliette Triquet

Abedamola Adedeji

Ruela Pabalan

Floryan De Campo

Compositions and methods for fracturing a subterranean formation are presented. Also provided are compositions and methods for reducing friction-related losses in a well treatment fluid. In general, the compositions include a copolymer that includes one or more vinylphosphonic acid ('VPA') monomers.

Polymer blends for stimulation of oil and gas wells

Polymeric systems useful for maintaining particle dispersions for extended periods of time.

Polymeric systems for particle dispersion

A method of reducing shear recovery time of a viscosifying surfactant fluid system that includes introducing a viscosifying surfactant fluid system into a subterranean formation, wherein the fluid includes a major portion of a surfactant and a hydrophobically-modified associative polymer in a concentration sufficient to shorten the shear recovery time of the fluid system compared to the shear recovery time of the fluid system without the polymer.

Shear recovery for viscosifying surfactants in stimulation fluids

Products and processes that are related to phosphonated polysaccharide compositions, including phosphonated polysaccharide gels, having a substituent degree of substitution with a lower limit of 0.02 and an upper limit of 3, and having a weight average molecular weight with an upper limit of 5,000,000 g/mole, as well as to oil field application or fracturing fluid compositions comprising such phosphonated polysaccharide compositions.

Phosphonated polysaccharides and gels and process for making same

A method of acidizing a formation penetrated by a wellbore that includes the steps of injecting into the wellbore at a pressure below formation fracturing pressure a treatment fluid that includes a gelling fluid including a gelling agent and a hydrophobically-modified associative polymer, and an aqueous acid; and allowing the treatment fluid to acidize the formation.

Self-diverting acidizing system

A method of controlling or arresting the rate of depolymerization of a polymer composition during a biocide treatment, and use of such methods in oilfield and industrial applications. Also disclosed are methods of preparing a visco-stable application fluid containing a biocide in an amount effective to reduce bacteria count, as well as additive compositions capable of reducing bacteria count in application fluids while maintaining viscosity in such fluids. Also disclosed are methods of preparing biocide-containing application fluids with improved friction reducing properties, as well as related compositions.

Methods for controlling depolymerization of polymer compositions

A composition for enhancing fluid viscosity including a mixture of at least one cationic or cationizable polymer and at least one anionic or anionizable (hydrolysable) polymer. The composition has a zeta potential at 25&#xb0; C. in the range of 0.5 to 100 mV or &#x2212;0.5 to &#x2212;100 mV, typically 1 to 60 mV or &#x2212;1 to &#x2212;60 mV, or is a precursor convertible at a temperature of 100 to 250&#xb0; C. to the composition having a zeta potential at 25&#xb0; C. of 0.5 to 100 mV or &#x2212;0.5 to &#x2212;100 mV, typically 1 to 60 mV or &#x2212;1 to &#x2212;60 mV. Typically the compositions exhibit salt tolerance and interaction of both polymers at very high temperatures (&#x3e;300&#xb0; F.) such that the system exhibits an increase of viscosity at extreme temperatures. The compositions are useful for hydraulic fracturing, enhanced oil recovery, subterranean acidization, personal care as well as home and industrial cleaners.

Rheology modifier compositions and methods of use

An aqueous fluid composition useful for the recovery of hydrocarbons from a subterranean formation, including a mixture of water, a water soluble polymer, an inorganic salt and at least one zwitterionic surfactant and methods of using same.

Addition of zwitterionic surfactant to water soluble polymer to increase the stability of the polymers in aqueous solutions containing salt and/or surfactants

A method for viscosifying brine systems utilized in oilfield applications comprising: a) preparing a heavy brine system comprising obtaining an aqueous brine system comprising a hydrated polysaccharide and at least one multivalent salt, wherein the density of the aqueous brine system is greater than about 10 pounds per gallon (ppg), and adding an effective amount of an alkaline agent, thereby increasing the viscosity of the brine system. Also disclosed are methods for viscosifying brine systems utilized in well servicing applications comprising obtaining an aqueous brine solution comprising at least one multivalent salt, wherein the density of the aqueous brine system is greater than about 10 pounds per gallon (ppg); adding a polysaccharide; adding an effective amount of an acid buffering agent to the brine system to lower the pH of the brine system, whereby the polysaccharide is capable of substantially hydrating into the brine system; and adding an effective amount of an alkaline agent, thereby substantially increasing the viscosity of the brine system.

Methods and compositions for viscosifying heavy aqueous brines

A stable polysaccharide particle suspension composition comprising: a carrier; an activator solvent comprising a) at least one dibasic methyl or ethyl ester; b) at least one compound of the formula ROOC-A-CONRR(IIa), wherein Rrepresents a C-Calkyl group; wherein Rand Rindividually represents a C-Calkyl group, wherein Rand Rcan optionally together form a ring; and wherein A is a linear or branched divalent C-Calkyl group; or c) a combination a) and b); an organo clay compound; and optionally, a surfactant; the composition being stable and capable of suspending polysaccharide particles. Slurries of polysaccharide particles in such suspension composition and methods of making the compositions and the slurries.

Polysaccharide slurries with environmentally friendly activator solvents

A method of controlling or arresting the rate of depolymerization of a polymer composition during a biocide treatment by controlling the pH of the composition, and use of such methods in oilfield applications.

A monomer compound that contains at least one polymerizable functional group per molecule, and at least one bicycloheptyl-, bicycloheptenyl-, or branched (C-C)alkyl-polyether radical per molecule, wherein the bicycloheptyl- or bicycloheptenyl-polyether radical may optionally be substituted on one or more of the ring carbon atoms by one or two (C-C)alkyl groups per ring carbon atom is useful in making polymers, particularly pH responsive polymers.

Compositions having HASE rheology modifiers

Growing community of inventors

East Windsor, NJ, United States of America

Subramanian Kesavan