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:
Dec. 27, 2016
Filed:
Apr. 22, 2016
China University of Petroleum (Beijing), Beijing, CN;
Guancheng Jiang, Beijing, CN;
Zhengqiang Deng, Beijing, CN;
Yinbo He, Beijing, CN;
Xianbin Huang, Beijing, CN;
Fan Liu, Beijing, CN;
Yang Xuan, Beijing, CN;
Zepu Cheng, Beijing, CN;
Lili Yang, Beijing, CN;
Chunlei Wang, Beijing, CN;
Shuanglei Peng, Beijing, CN;
Chong Liu, Beijing, CN;
Kai Wang, Beijing, CN;
Xinliang Li, Beijing, CN;
Yawei Shi, Beijing, CN;
China University of Petroleum (Beijing), Beijing, CN;
Abstract
The present invention relates to the field of petrochemical drilling and discloses a drilling fluid additive composition. The composition contains an emulsifier and a rheological modifier. The emulsifier is one or more of the compounds represented by Formula (1); the rheological modifier is dimer acid-organic amine copolymer, comprising structural units from the dimer acid, structural units from the alkylamine and structural units from the arylamine. The present invention further provides a drilling fluid containing the foregoing composition. When a clay-free oil-in-water drilling fluid contains the drilling fluid additive composition of the present invention containing the emulsifier and rheological modifier, it may have high temperature resistance and high density;