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:
Aug. 23, 2011
Filed:
Feb. 13, 2008
Terry D. Monroe, Tomball, TX (US);
Daniel P. Vollmer, Lafayette, LA (US);
Bruce A. Comeaux, Lockport, LA (US);
Kay E. Cawiezel, Fulshear, TX (US);
Terry D. Monroe, Tomball, TX (US);
Daniel P. Vollmer, Lafayette, LA (US);
Bruce A. Comeaux, Lockport, LA (US);
Kay E. Cawiezel, Fulshear, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Brine-based well treatment compositions containing alkali nitrate exhibit greater thermal stability when used in deep wells than substantially similar brine-based well treatment compositions which do not contain an alkali nitrate. The brine is thickened with a water-soluble crosslinkable polymer and crosslinking agent. The enhanced thermal stability of the well treatment compositions allows use of the fluids at elevated temperatures, for instance as high as 400° F.