The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2019
Filed:
Jan. 22, 2014
Halliburton Energy Services, Inc., Houston, TX (US);
James William Ogle, Spring, TX (US);
Loan K. Vo, Houston, TX (US);
Thomas D. Welton, Conroe, TX (US);
Bradley J. Sparks, Richmond, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A treatment fluid is described suitable for use in subterranean formations comprising an aqueous phase, a carboxymethyl hydroxyethyl cellulose, and a breaker. The aqueous phase comprises water having at least 1,000 ppm total dissolved inorganic salts and at least one of: a sulfate concentration of about 4,000 ppm or greater, a phosphate concentration of about 100 ppm or greater, a carbonate concentration of about 100 ppm or greater, or a barium concentration of about 37,000 ppm or greater. The carboxymethyl hydroxyethyl cellulose has a carboxymethyl degree of substitution in the range of about 0.3 to about 0.45 per glucopyranose unit in the carboxymethyl hydroxyethyl cellulose polymer; and a hydroxyethyl molecular substitution in the range of about 2.1 to about 2.9 per glucopyranose unit in the carboxymethyl hydroxyethyl cellulose polymer; The treatment fluid is substantially free of any crosslinker.