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:
Sep. 13, 2022
Filed:
Nov. 17, 2020
Applicant:
Solvay Usa Inc., Princeton, NJ (US);
Inventors:
Qing Wang, Spring, TX (US);
Genyao Lin, The Woodlands, TX (US);
Zhihua Zhang, Singapore, SG;
Fulya Sudur Zalluhoglu, The Woodlands, TX (US);
Assignee:
SOLVAY USA INC., Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/60 (2006.01); E21B 43/26 (2006.01); C09K 8/68 (2006.01);
U.S. Cl.
CPC ...
C09K 8/604 (2013.01); C09K 8/68 (2013.01); E21B 43/26 (2013.01); C09K 2208/28 (2013.01);
Abstract
A polymer dispersion includes a water-soluble copolymer prepared by controlled radical polymerization; a water soluble salt; a polyol; a salt selected from the group consisting of sodium citrate, sodium phosphate, sodium nitrate, and combinations thereof; and water. Methods for using the polymer dispersion for oilfield friction reduction occur under a variety of adverse conditions including low temperatures, salt, scale, and iron.