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:
Oct. 06, 2020
Filed:
Nov. 15, 2019
Yangtze University, Jingzhou, CN;
Jingzhou Jiahua Technology Co., Ltd., Jingzhou, CN;
Mingbiao Xu, Jingzhou, CN;
Fuchang You, Jingzhou, CN;
Shanshan Hou, Jingzhou, CN;
Jiao Wu, Jingzhou, CN;
YANGTZE UNIVERSITY, Jingzhou, CN;
Jingzhou Jiahua Technology Co., Ltd., Jingzhou, CN;
Abstract
A sulfur- and phosphorus-free extreme pressure lubricant and a preparation method thereof is disclosed. The lubricant is prepared by using Turkey red oil, a cyclic anhydride compound, triethanolamine, nano polytetrafluoroethylene powder, an alcohol compound, and water as raw materials. The lubricant does not contain hazardous substances such as sulfur and phosphorus. This reduces the harm to the environment, equipment, and human body, and conforms to the development trend of modern industrial production. Moreover, the lubricant has excellent extreme pressure performance, and can effectively reduce the downhole friction and torque, thereby meeting the construction requirements of extended reach wells and horizontal wells.