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. 26, 2019
Filed:
Feb. 26, 2019
Applicant:
Southwest Petroleum University, Chengdu, CN;
Inventors:
Yang Bai, Chengdu, CN;
Pingya Luo, Chengdu, CN;
Jinsheng Sun, Qingdao, CN;
Guancheng Jiang, Beijing, CN;
Jiading Deng, Chengdu, CN;
Yan Cheng, Chengdu, CN;
Guojun Li, Chengdu, CN;
Assignee:
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/512 (2006.01); C09K 8/42 (2006.01); C09K 8/44 (2006.01);
U.S. Cl.
CPC ...
C09K 8/426 (2013.01); C09K 8/44 (2013.01); C09K 2208/04 (2013.01); C09K 2208/30 (2013.01);
Abstract
An expandable plugging agent is described. The expandable plugging agent is obtained through a polymerization reaction of acrylamide, a strength improving material, an acrylate, and gelatinized colloid, the acrylate is obtained through a neutralization reaction of an acidity neutralizer and acrylic acid, and the gelatinized colloid is obtained through a gelatinization reaction of starch in deionized water.