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:
Jan. 03, 2023
Filed:
Apr. 22, 2022
Applicant:
Southwest Petroleum University, Chengdu, CN;
Inventors:
Yang Bai, Chengdu, CN;
Lingfeng Wu, Chengdu, CN;
Jing Zhang, Chengdu, CN;
Wenzhe Li, Chengdu, CN;
Pingya Luo, Chengdu, CN;
Feng Dai, Chengdu, CN;
Jingping Liu, Shandong, CN;
Ren Wang, Chengdu, CN;
Daoxiong Li, Chengdu, CN;
Wen Xu, Chengdu, CN;
Assignee:
Southwest Petroleum University, Chengdu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/516 (2006.01); C09K 8/508 (2006.01); E21B 21/00 (2006.01); C09K 8/24 (2006.01); C09K 8/16 (2006.01); C09K 8/504 (2006.01); C09C 1/02 (2006.01);
U.S. Cl.
CPC ...
C09K 8/516 (2013.01); C09C 1/021 (2013.01); C09K 8/16 (2013.01); C09K 8/24 (2013.01); C09K 8/5045 (2013.01); C09K 8/5086 (2013.01); E21B 21/003 (2013.01);
Abstract
The present disclosure a leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof.