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

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United States of America Patent

PATENT NO 11814944
APP PUB NO 20220316312A1
SERIAL NO

17594750

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Abstract

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A reactive torque automatic balancing device for a screw drilling tool includes an upper joint (1); a core cylinder (9) having an inner chamber in communication with the screw drilling tool (305) located downstream, so that drilling fluid from the inner chamber of the upper joint (1) flows to the screw drilling tool (305) through the inner chamber of the core cylinder (9) to allow the screw drilling tool to perform drilling; a lower joint (16) fixedly arranged at a lower end of the core cylinder (9); and an automatic balancing assembly, which is arranged between an outer wall of the core cylinder (9) and an inner wall of the upper joint (1), and driven by hydraulic pressure generated by a part of the drilling fluid flowing through the inner chamber of the upper joint (1).

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Patent Owner(s)

Patent OwnerAddress
CHINA PETROLEUM & CHEMICAL CORPORATION22 CHAOYANGMEN NORTH STREET CHAOYANG DISTRICT BEIJING 100728 100728
SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING10TH FLOOR NORTH-STAR TIMES TOWER NO 8 BEICHENDONG ROAD CHAOYANG DISTRICT BEIJING 100101

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Menggang Beijing, CN 3 2
Niu, Chengcheng Beijing, CN 2 2
Yu, Lingling Beijing, CN 5 15
Zhao, Xiangyang Beijing, CN 6 12
Zheng, Deshuai Beijing, CN 1 2

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