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.:

US 9932513 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 03, 2018

Filed:

Jan. 23, 2013
Applicants:

Prerana Umesh Suryawanshi, Pune, IN;

Lalit Pandurang Salgaonkar, Pune, IN;

Achala Vasudev Danait, Pune, IN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/514 (2006.01); C09K 8/68 (2006.01); C09K 8/90 (2006.01);
U.S. Cl.
CPC ...
C09K 8/514 (2013.01); C09K 8/68 (2013.01); C09K 8/90 (2013.01); C09K 2208/28 (2013.01);
Abstract

Treatment fluids employing stabilized heteropolysaccharide-based gels in brines are used as part of gravel packing and combined gravel packing-fracturing operations; a method includes providing a treatment fluid which includes an aqueous brine base, a heteropolysaccharide including one selected from the group consisting of diutan, scleroglucan, and succinoglycan, and a protein present in an amount sufficient to stabilize the heteropolysaccharide and hence minimizing the salting out phenomenon, the method including placing the treatment fluid in a subterranean formation.


Find Patent Forward Citations

Loading…