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:
Jun. 03, 2025
Filed:
Sep. 16, 2020
Applicants:
Cnpc Usa Corporation, Sugar Land, TX (US);
Beijing Huamei Inc., Beijing, CN;
Inventors:
Lijun Lin, Katy, TX (US);
Chuanxin Zhang, Beijing, CN;
Guodong Wu, Beijing, CN;
Bo Huang, Beijing, CN;
Stephanie Yu, Houston, TX (US);
Assignees:
CNPC USA Corporation, Houston, TX (US);
Beijing Huamei, Inc., Beijing, CN;
Xinjiang Oilfield Company, Karamay, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/68 (2006.01); C09K 8/66 (2006.01); E21B 43/26 (2006.01); E21B 43/267 (2006.01);
U.S. Cl.
CPC ...
C09K 8/685 (2013.01); C09K 8/665 (2013.01); E21B 43/26 (2013.01); E21B 43/267 (2013.01);
Abstract
Disclosed herein is a crosslinked HPG fluid system using a very low concentration of HPG polymer. The fluid system is able to be used at low HPG concentrations while maintaining stable viscosity for over two hours at elevated temperatures.