Grouting and water blocking method for directional hole with large offset in hard rock stratum

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United States of America

PATENT NO 12196076
SERIAL NO

18750211

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Abstract

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Disclosed is a grouting and water blocking method for a hard rock stratum. The grouting and water blocking method include the following steps. At first, hydrogeological information and coal seam information of a hard rock stratum is obtained. Then, a drilling trajectory of the hard rock stratum is determined based on the hydrogeological information and the coal seam information. Later, at least one drilling device is determined corresponding to the drilling trajectory based on types of multiple rock layers contained in the hard rock stratum. After that, the multiple rock layers contained in the hard rock stratum are drilled sequentially according to the drilling trajectory using the at least one drilling device. At last, in response to determining there is a water leakage area, the water leakage area is grouted.

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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
Liu, Xue Beijing, CN 84 356
Pang, Kai Beijing, CN 14 174
Wang, Xuejun Beijing, CN 43 403
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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