Halliburton Energy Services, Inc.

University of Texas System

Robert E Hanes, Jr

Billy F Slabaugh

Jimmie Dean Weaver, Jr

David Eugene McMechan

Karen L King

Thomas Donovan Welton

Richard W Pauls

David E Griffin

Jiten Chatterji

Jim D Weaver

Keith A Frost

Philip D Nguyen

Gary P Funkhouser

Matthew Eric Blauch

John M Terracina

Diederik W Van Batenburg

Mark A Parker

Neil Alan Stegent

Bradley Leon Todd

Eric V Anslyn

J Michael Wilson

Damon Vincent Borich

Tommy Slabaugh, Legal Representative

David M Barrick

Ronald Houk

Jason A Neeser

Himali Hewage

Compositions, methods, and systems for detecting small molecules using chemiluminescent signaling assay technology are provided. One system provided herein comprises a chromophore; an oxalate ester, a peroxide, and a modulating agent, wherein the modulating agent will perturb a chemiluminescent signal generated by an interaction among the chromophore, the oxalate ester, and a peroxide; and the perturbation will occur in response to an analyte. One method provided herein comprises combining a chromophore, an oxalate ester, a peroxide, and a modulating agent, wherein: the modulating agent will perturb a chemiluminescent signal generate by an interaction among the chromophore, the oxalate ester, and a peroxide; and the perturbation will occur in response to an analyte. Another method provides a colorimetric or fluorometric signal response in the presence of an analyte.

Compositions and methods for detection of small molecules using dyes derivatized with analyte responsive receptors in a chemiluminescent assay

Methods are provided that include, but are not limited to, methods of treating guar splits comprising: exposing guar splits to a treatment chemical to create treated guar splits, wherein the treatment chemical comprises at least one treatment chemical selected from the group consisting of: an aqueous salt solution; a caustic solution, and a derivatizing agent; and grinding the treated guar splits to create ground, treated guar splits.

Methods and compositions for enhancing guar hydration rates and performing guar derivatization reactions

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 antiflocculation additive; and introducing the treatment fluid into a well bore penetrating the subterranean formation at rate in the range of from about 30 barrels to about 250 barrels per minute so as to create or enhance one or more fractures in the subterranean formation. Aqueous treatment fluids comprising: an aqueous fluid, a friction reducing polymer in an amount sufficient to reduce friction without forming a gel, and an antiflocculation additive.

Treatment fluids comprising friction reducers and antiflocculation additives and associated methods

Methods and compositions for enhancing guar hydration rates and performing guar derivitization reactions

In one embodiment, the present invention provides a viscosified treatment fluid composition comprising a base fluid, a gelling agent, and a breaker composition that comprises an oxidizing breaker and a breaker activator that comprises a metal and a protein. In another embodiment, the present invention provides a viscosified treatment fluid composition comprising a base fluid, a gelling agent, and a breaker composition that comprises an oxidizing breaker and a breaker activator that comprises iron. In an embodiment, the present invention provides a breaker composition comprising an oxidizing breaker and a breaker activator that comprises a metal and a protein.

Compositions for reducing the viscosity of treatment fluids

The present invention provides a method of forming a viscosified treatment fluid comprising: providing a treatment fluid that comprises water and a gelling agent; contacting the treatment fluid with a boronic acid crosslinking agent so as to form a crosslinked gelling agent, wherein the boronic acid crosslinking agent comprises a compound having the formula: The present invention also provides methods of crosslinking gelling agent molecules, methods of treating a subterranean formation, methods of reusing viscosified treatment fluids, methods of fracturing subterranean formations, and methods of placing a gravel pack in subterranean formations. The present invention also provides boronic acid crosslinking agents and viscosified treatment fluids that comprise crosslinked gelling agents, the crosslinked gelling agent being formed from a reaction comprising a gelling agent and a boronic acid crosslinking agent.

Methods and compositions for crosslinking polymers with boronic acids

In one embodiment, the present invention provides a method of increasing the viscosity of a treatment fluid comprising the steps of: adding a networking agent to the treatment fluid, wherein the networking agent is represented by the formula: Y&#x2014;X&#x2014;[B(OR)2]n, wherein: Y is at least partially capable of forming a crosslink between a gelling agent molecule, a second networking agent, and/or a combination thereof; X is at least partially capable of preventing or inhibiting a reaction represented by the formula: ROH+R'B(OR)2&#x2192;R&#x2032;OH+B(OR)3; R and R&#x2032; are a hydrogen, an alkyl group, an aryl group, or a combination thereof; and n is a positive integer greater than or equal to 1; allowing at least one crosslink to form between the networking agent and a gelling agent molecule, a second networking agent, and/or a combination thereof; and allowing the viscosity of the treatment fluid to increase. Methods of treating a portion of a subterranean formation, networking agent compositions, and treatment fluid compositions also are provided.

Boronic acid networking agents and associated methods

One embodiment of the present invention provides a method of treating guar splits comprising exposing guar splits to a treatment chemical to create treated guar splits; and then, without first washing the treated guar splits, grinding the treated guar splits; and, then drying the ground, treated guar splits. Another embodiment of the present invention provides a method of treating a portion of a subterranean formation comprising providing a treatment fluid comprising a viscosifying agent wherein the viscosifying agent comprises ground, treated guar splits made by the following method: exposing guar splits to a treatment chemical to create treated guar splits; and then, without first washing the treated guar splits, grinding the treated guar splits; and, then drying the ground, treated guar splits; placing the treatment fluid into a portion of a subterranean formation.

Provided are methods of modifying the surface stress-activated reactivity of proppant particulates used in subterranean operations. In one embodiment, the methods comprise: providing a plurality of particulates, at least one of which comprises a mineral surface; providing a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface of a particulate; and allowing the surface-treating reagent modify the stress-activated reactivity of at least a portion of the mineral surface of at least one particulate. In other embodiments, the methods comprise the use of particulates comprising a modified mineral surface in fluids introduced into subterranean formations.

Methods of treating particulates and use in subterranean formations

Methods of treating a portion of a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid and a friction reducing copolymer that comprises acrylamide and 2-(2-ethoxyethoxy)-ethyl acrylate and introducing the aqueous treatment fluid into the portion of the subterranean formation. Methods of fracturing a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid and a friction reducing copolymer that comprises acrylamide and 2-(2-ethoxyethoxy)-ethyl acrylate and introducing the aqueous treatment fluid into the subterranean formation at or above a pressure sufficient to create one or more fractures in the subterranean formation. Aqueous treatment fluids comprising: an aqueous fluid and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester.

Subterranean treatment fluids, friction reducing copolymers, and associated methods

Methods of treating a portion of a subterranean formation, comprising: providing an aqueous treatment fluid comprising water, and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester; and introducing the aqueous treatment fluid into the portion of the subterranean formation. Methods of fracturing a subterranean formation comprising: providing an aqueous treatment fluid comprising water, and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester; and introducing the aqueous treatment fluid into the subterranean formation at or above a pressure sufficient to create one or more fractures in the subterranean formation. Aqueous treatment fluids comprising: an aqueous fluid and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester.

Provided are methods of modifying the stress-activated reactivity of subterranean fracture faces and other surfaces in subterranean formations. In one embodiment, the methods comprise: providing a treatment fluid that comprises a base fluid and a surface-treating reagent capable of modifying the stress-activated reactivity of a mineral surface in a subterranean formation; introducing the treatment fluid into a subterranean formation; and allowing the surface-treating reagent to modify the stress-activated reactivity of at least a portion of a mineral surface in the subterranean formation.

Methods of modifying fracture faces and other surfaces in subterranean formations

The present invention provides a method of forming a viscosified treatment fluid comprising: providing a treatment fluid that comprises water and a gelling agent; contacting the treatment fluid with a boronic acid crosslinking agent so as to form a crosslinked gelling agent, wherein the boronic acid crosslinking agent comprises a compound having the formula:  The present invention also provides methods of crosslinking gelling agent molecules, methods of treating a subterranean formation, methods of reusing viscosified treatment fluids, methods of fracturing subterranean formations, and methods of placing a gravel pack in subterranean formations. The present invention also provides boronic acid crosslinking agents and viscosified treatment fluids that comprise crosslinked gelling agents, the crosslinked gelling agent being formed from a reaction comprising a gelling agent and a boronic acid crosslinking agent.

Growing community of inventors

Oklahoma City, OK, United States of America

Robert E Hanes, Jr