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:
Nov. 14, 2023
Filed:
Apr. 15, 2020
China Petroleum & Chemical Corporation, Beijing, CN;
Sinopec Research Institute of Petroleum Engineering, Beijing, CN;
Deshuai Zheng, Beijing, CN;
Menggang Li, Beijing, CN;
Chengcheng Niu, Beijing, CN;
Xiangyang Zhao, Beijing, CN;
Lingling Yu, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING, Beijing, CN;
Abstract
A reactive torque automatic balancing device for a screw drilling tool includes an upper joint (); a core cylinder () having an inner chamber in communication with the screw drilling tool () located downstream, so that drilling fluid from the inner chamber of the upper joint () flows to the screw drilling tool () through the inner chamber of the core cylinder () to allow the screw drilling tool to perform drilling; a lower joint () fixedly arranged at a lower end of the core cylinder (); and an automatic balancing assembly, which is arranged between an outer wall of the core cylinder () and an inner wall of the upper joint (), and driven by hydraulic pressure generated by a part of the drilling fluid flowing through the inner chamber of the upper joint ().