Shengyu Huang
No. 8 Oil Production Plant, PetroChina Changqing Oilfield Company, Xi’an 710018, P. R. China

Yiying Wu
State Key Laboratory of Continental Dynamics of Ministry of Geology, Northwest University, Xi’an 710069, P. R. China

Xiaobo Meng
Unconventional Natural Gas Institute, China University of Petroleum, Beijing 102249, P. R. China

Liwen Liu
Korla Branch of Bureau of Geophysical Prospecting Co., Ltd., CNPC, Korla 841001, P. R. China

Wei Ji
Changqing Division of China Petroleum Group logging Co., Ltd., Xi’an 710201, P. R. China