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:
Dec. 08, 2020
Filed:
Jan. 27, 2020
Applicants:
China University of Petroleum (East China), Qingdao, CN;
Chengdu Omax Petroleum Technology Co., Ltd, Chengdu, CN;
Inventors:
Chengwen Wang, Qingdao, CN;
Yucheng Xue, Qingdao, CN;
Wei Zhou, Qingdao, CN;
Ruihe Wang, Qingdao, CN;
Jinsheng Sun, Qingdao, CN;
Yong Li, Qingdao, CN;
Changqiang Tang, Qingdao, CN;
Assignees:
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Qingdao, CN;
CHENGDU OMAX PETROLEUM TECHNOLOGY CO., LTD, Chengdu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/467 (2006.01); C04B 28/02 (2006.01); C04B 40/00 (2006.01); C04B 24/16 (2006.01); C08F 220/58 (2006.01); C04B 103/22 (2006.01);
U.S. Cl.
CPC ...
C09K 8/467 (2013.01); C04B 24/163 (2013.01); C04B 28/02 (2013.01); C04B 40/0039 (2013.01); C08F 220/585 (2020.02); C04B 2103/22 (2013.01); C08F 2800/20 (2013.01);
Abstract
The present disclosure relates to a high-temperature retarder suitable for oil and gas well cementation, a preparation method thereof and a cementing slurry.