Rhodia Operations

Akzo Nobel Chemicals International B.v.

Energy Solutions (US) LLC

Nouryon Chemicals International B.v.

General Instrument Corporation of Delaware

Energysolutions, LLC

Jian Zhou

Genyao Lin

Qi Qu

Subramanian Kesavan

Rose Ndong

Hoang Van Le

Lingjuan Shen

Changmin Jung

Limin Wang

Klin Aloysius Rodrigues

James F Gadberry

Olivier Back

Pascal Herve

Paul Michael Ferm

Louis Villafane

Krit Panusopone

Ajay K Luthra

Christophe Bucher

Yue Yu

David M Baylon

John Socrates Thomaides

David Grover

Arnaud Cadix

Elliot I Band

David James Wilson

Daniel Bode

Ruela Talingting Pabalan

Jude Thomas Rademacher

Xiaoyu Wang

Jannifer Sanders

Qingwen Wendy Yuan-Huffman

Fulya Sudur Zalluhoglu

Qing Wang

John Douglas Nowak

Stuart Holt

Lingling Li

Shaopeng Zhang

Ahmed Rabie

Lei Zhang

Chang Min Jung

Nick Henry Wolf

Andrew Alexander Robertson

Kurt Randall Heidemann

Patricia B Siuta-Cruce

Michael J Engel

Lanka Wickramasinghe Arachchilage

Christopher Smith

Stuart Peter Robert Holt

Minh Le

Klin A Rodrigues

Juliette Triquet

James Frederic Gadberry

Elliot Isaac Band, Jr

Elliot Isaac Band

Stuart Peter Holt

James Mchale

Robert O Elfrig

Xue Fang

Ruela Pabalan

Samuel Anthony Vona Jr

Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.

Method of acidizing a subterranean formation comprising a gelling agent

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

Provided herein, inter alia, are polymeric compositions and systems useful for maintaining particle dispersions for extended periods of time. Also provided are dry polymeric compositions and systems that are able to undergo fast hydration. Methods for using such compositions and systems are also provided.

Polymer compositions having fast hydration rate and use of the same for particle suspension

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

Polymeric systems for particle dispersion

Provided herein are friction reducer formulations including a formate salt and an inverting surfactant, and methods of manufacturing such formulations. Methods of using the friction reducer formulations, such as for treating subterranean formations, are also provided.

Friction reducers

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

The present disclosure provides polymeric systems that are able to undergo fast hydration and are useful for maintaining particle dispersions for extended periods of time.

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

The present invention is directed to a cross-linked scale control agent particle comprising: a scale control agent and a cross-linker. The scale control agent is cross-linked by the cross-linker. The present invention is also directed to a cross-linked organic-based crystalline inhibitor particle comprising: an organic-based crystalline inhibitor and a cross-linker. The organic-based crystalline inhibitor is cross-linked by the cross-linker. The present invention is also directed to the use of cross-linkers which can also act as benefit agents and to the use of capping and extension agents which act as further benefit agents The present invention is further directed to a particle comprising more than one cross-linked active agents; the active agent may be a combination of a scale control agent and an organic-based crystalline inhibitor. The present invention is also directed to a method for producing the particles according to the present invention and methods for performing a mechanical fracturing operation, for reducing scale build up in an oil well and a cooling tower using the particles according to the present invention.

Particles containing one or more controlled release cross-linked active agents

Methods of using a clay stabilizing agent to inhibit swelling and/or migration of clay subterranean materials upon exposure to water, wherein the clay stabilizing agent is selected from quaternary ammonium salts according to Formula I, Formula II, Formula III, Formula IV, Formula V, and combinations thereof.

Clay stabilizing and methods of use with quaternary ammonium salts

Compositions and methods are provided for delayed breaking of viscoelastic surfactant gels inside subterranean formations. Breaking is accomplished without mechanical intervention or use of a second fluid. The delayed breaking agent is selected from alkyl ether phosphates and salts thereof, alkylaryl ether phosphates and salts thereof, alkyl sulfates and salts thereof, alkylaryl sulfates and salts thereof, alkyl ether sulfates and salts thereof, alkylaryl ether sulfates and salts thereof, and mixtures of any of the foregoing. The viscoelastic surfactant can be a zwitterionic surfactant, and can be selected from the group consisting of sultaines, betaines, and amidoamine oxides.

Delayed breaker for viscoelastic surfactant-based fluids

A controlled release composition containing a water-active material in the form of granules having a protective barrier coating capable of releasing the water-active material under predetermined release conditions, wherein the protective barrier coating comprises a polymer blend of two latex polymers, a method of preparing such a composition, a sprayable solution useful in the preparation of the composition, and the use of the composition for breaking a fracturing fluid.

Controlled release granule with water resistant coating

The present invention generally relates to a viscoelastic fluids, thickened acid compositions and the like and to methods of using said gelled compositions. The thickened compositions of the present invention can usefully be employed in methods of stimulating and/or modifying the permeability of underground formations, in drilling fluids, completion fluids, workover fluids, acidizing fluids, fracturing, gravel packing and the like.

Thickened viscoelastic fluids and uses thereof

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Langhorne, PA, United States of America

Jian Zhou