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:
Jul. 23, 2024
Filed:
Aug. 26, 2022
China University of Petroleum (East China), Qingdao, CN;
Yingrui Bai, Qingdao, CN;
Jinsheng Sun, Qingdao, CN;
Kaihe Lv, Qingdao, CN;
Guancheng Jiang, Qingdao, CN;
Rongchao Cheng, Qingdao, CN;
Weian Huang, Qingdao, CN;
Jintang Wang, Qingdao, CN;
Jingping Liu, Qingdao, CN;
Xianbin Huang, Qingdao, CN;
Jiafeng Jin, Qingdao, CN;
Jian Li, Qingdao, CN;
Shenglong Shi, Qingdao, CN;
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Qingdao, CN;
Abstract
An oil-soluble thermosensitive resin lost circulation material for protecting a reservoir includes the following raw materials in parts by weight: 40-60 parts of resin matrix, 15-40 parts of modified asphalt, 5-12 parts of viscosity modifier, 2-5 parts of cross-linking agent, 6-15 parts of softening point modifier, and 1-3 parts of dispersant; it further provides a method for preparing the resin lost circulation material; the resin lost circulation material can melt and adhere in different temperature ranges, rapid plugging is realized, and the plugging time is long; the oil-soluble thermosensitive resin lost circulation material can be dissolved by oil flow during oil well production, so that the reservoir permeability is recovered, so as to achieve the purpose of protecting the hydrocarbon reservoir.