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:
Feb. 18, 2025
Filed:
Jul. 25, 2023
Chengdu Leps Technology Co., Ltd, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Jianchun Guo, Chengdu, CN;
Shan Ren, Chengdu, CN;
Cong Lu, Chengdu, CN;
Bin Liu, Chengdu, CN;
Shaobin Zhang, Chengdu, CN;
Huifei Mao, Chengdu, CN;
Su Diao, Chengdu, CN;
Xueshan Yang, Chengdu, CN;
Chaojun Tang, Chengdu, CN;
Junyao Ran, Chengdu, CN;
Guangyao Yang, Chengdu, CN;
Chengdu LEPS Technology Co., Ltd, Chengdu, CN;
Southwest Petroleum University, Chengdu, CN;
Abstract
The present invention pertains to the field of oilfield stimulation technologies for oil and gas field development, in particular to an instant soluble temperature and salt resistant polyacrylamide and the preparation method and application thereof, and the polyacrylamide is modified by adding rigid temperature and salt resistant monomer containing benzene ring and cationic fluorinated hydrophobic monomer on the basis of acrylamide monomer and sodium acrylate monomer, and then polymerized to obtain instant soluble temperature and salt resistant polyacrylamide. The temperature and salt resistant monomer containing benzene ring can improve the thermal stability and temperature and salt resistance of polyacrylamide, while the long-chain cationic fluorinated hydrophobic monomer can enhance the hydrophobicity of polymer. The comprehensive properties of polymer is improved by appropriate intermolecular association.