US Patent 7007757 - Fracturing fluids containing borate esters as crosslinking agents and method of using same

Fracturing fluids containing borate esters as crosslinking agents and method of using same

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Document Number

US Patent 7007757

Issued Date

March 7, 2006

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Inventors

Gupta; D. V. Satyanarayana (Tomball, TX)

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Pierce; Ron (Calgary,CA)

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Litt; Nicole Deanne (Edmonton,CA)

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Jerat; Anita Colleen (Calgary,CA)

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Abstract

A formation treating fluid comprises one or more borate esters, a liquid carrier and, one or more cross linkable polymer wherein the formation treating fluid has an alkaline pH when the formation treating fluid is positioned in a formation. The formation treating fluid is useful in high temperature operations such as hydraulic fracturing.