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. 29, 2021
Applicants:
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Exploration & Production Research Institute, Beijing, CN;
Inventors:
Lihong Yang, Beijing, CN;
Jiayuan He, Beijing, CN;
Haibo Wang, Beijing, CN;
Shengyou Zhou, Beijing, CN;
Xin Huang, Beijing, CN;
Kefeng Yang, Beijing, CN;
Shibo Hao, Beijing, CN;
Le Zhang, Beijing, CN;
Xueqi Cen, Beijing, CN;
Guoxing Chai, Beijing, CN;
Assignees:
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC EXPLORATION & PRODUCTION RESEARCH INSTITUTE, Beijing, CN;
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/06 (2006.01); C09K 8/524 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/524 (2013.01); E21B 37/06 (2013.01); E21B 41/0099 (2020.05); C09K 2208/22 (2013.01);
Abstract
Naphthenic imidazoline can be used in inhibiting formation of natural gas hydrate. A composition contains the naphthenic imidazoline and modified polysaccharide. The modified polysaccharide may be cationic amylose.