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:
May. 19, 2020
Filed:
Feb. 14, 2019
China University of Petroleum (East China), Shandong, CN;
Chengwen Wang, Shandong, CN;
Huan Wang, Shandong, CN;
Zizhen Wang, Shandong, CN;
Yucheng Xue, Shandong, CN;
Ruihe Wang, Shandong, CN;
Xin Chen, Shandong, CN;
Wenfei Li, Shandong, CN;
China University of Petroleum (East China), Shandong, CN;
Abstract
An oil well cement settlement stabilizer is ternary cement settlement stabilizer or quaternary cement settlement stabilizer; wherein the quaternary cement settlement stabilizer containing structural units A represented by formula (I), structural units B represented by formula (II), structural units C represented by formula (III), and structural units D represented by formula (IV); Wherein the ternary cement settlement stabilizer containing structural units A represented by formula (I), structural units B represented by formula (II), and structural units D represented by formula (IV);