Hao Yuexiang,
Shardanova, T. A.
Chongxing, Huang
Article History
Received: 4 December 2018
Revised: 27 February 2019
Accepted: 27 February 2019
First Online: 27 January 2020
ACKNOWLEDGMENTS
: The authors are grateful to the staff of Chuanging Drilling and Exploration Corporation Co., Ltd for their support in the collection and processing of the factual material.