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:
Nov. 02, 2021
Filed:
Jan. 21, 2020
Applicant:
Southwest Petroleum University, Chengdu, CN;
Inventors:
Assignee:
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/24 (2006.01); C09K 8/035 (2006.01);
U.S. Cl.
CPC ...
C09K 8/24 (2013.01); C09K 8/035 (2013.01); C09K 2208/10 (2013.01); C09K 2208/12 (2013.01); C09K 2208/34 (2013.01);
Abstract
A nanometer plugging water-based drilling fluid and preparation method and use thereof are within this disclosure. The nanometer plugging water-based drilling fluid comprise a nanometer plugging agent. The nanometer plugging agent may be surface modified SiOpowder with the surfactant. The surfactant may be sodium dodecyl benzene sulfonate and/or sodium dodecyl sulfate. The nanometer plugging water-based drilling fluid may perform effective anti-collapse of stratum and maintain the stability of stratum.