China Petroleum Chemical Corporation

Sinopec Research Institute of Petroleum Engineering

Edigene Inc.

Lingling Yu

Jia Wang

Pengfei Yuan

Chengcheng Niu

Menggang Li

Deshuai Zheng

Xiangyang Zhao

Penghui Xia

Fucai Liang

Riguo Fang

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 ().

Reactive torque automatic balancing device for screw drilling tool, drilling string, and method

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Beijing, China

Lingling Yu