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:
Mar. 17, 1987
Filed:
Sep. 24, 1985
Applicant:
Inventors:
Joe M Sandy, Duncan, OK (US);
Gerald D Smith, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166295 ; 166281 ; 252-8554 ;
Abstract
The present invention relates to a thermally stable crosslinked gelled fluid for use in the treatment of subterranean formations penetrated by a well bore. The fluid composition comprises a pH adjusted aqueous liquid, a gelling agent comprising a selected modified cellulose ether, a crosslinking agent comprising a zirconium IV-containing compound and any additional additives that may be present. The fluid composition is thermally stable under shear at temperatures in excess of about 200.degree. F.