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. 03, 1987
Filed:
Nov. 12, 1985
Applicant:
Inventors:
Martin M Williams, Louisville, KY (US);
Martha A Phelps, Louisville, KY (US);
George M Zody, Louisville, KY (US);
Assignee:
Hi-Tek Polymers, Inc., Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; C09K / ;
U.S. Cl.
CPC ...
252-8551 ; 166308 ; 252-8511 ;
Abstract
The viscosity of thickened aqueous solutions of water-soluble polymers is reduced by the addition of alkali metal and alkaline earth metal salts of hypochlorous acid and tertiary amines. The combination of the salt and the tertiary amine is much more efficient in speed of reduction in viscosity and in the completeness of the degradation of the polymer than the use of the metal salt alone. The process of this invention is particularly useful in fracturing of oil wells.