Directional drilling device and drilling method of aquifer remediation of coal seam roof

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United States of America

PATENT NO 12055040
SERIAL NO

18413509

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Abstract

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A curvature controllable directional drilling device is disclosed. The drilling device includes: a drill bit, a power unit, a rigid bending unit, a bendable outer wall, and a wedge deflection tool. The power unit is to provide a rotary power to the drill bit. The rigid bending unit is set between the drill bit and the power unit, to bend on a basis of an initial curvature under an external force. The bendable outer wall is set on an outer side of the power unit and the rigid bending unit. The wedge deflection tool is set at one end of the bendable outer wall near the drill bit, to receive a reaction force and bend the rigid bending unit. By a coordination between the wedge deflection tool and the power unit, a drilling direction of the drill bit connected to the rigid bending unit can be adjusted.

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Patent Owner(s)

Patent OwnerAddress
CHINA UNIVERSITY OF MINING AND TECHNOLOGY BEIJING100083 BEIJING CITY HAIDIAN DISTRICT INSTITUTE OF RUTOSIDS NO 11 BEIJING CITY BEIJING CITY 100083

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bao, Han Beijing, CN 11 107
Liu, Xue Beijing, CN 84 356
Pang, Kai Beijing, CN 14 174
Wei, Xinjiang Beijing, CN 5 0
Wu, Qiang Beijing, CN 535 3977
Xiao, Xuan Beijing, CN 15 24
Yang, Weihong Beijing, CN 29 250
Zeng, Yifan Beijing, CN 19 14

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