1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
2. The second gas production plant of Sinopec Southwest Oil and Gas Company, Langzhong, Sichuan 637400, China
3. Sichuan Kehong Petroleum and Natural Gas Engineering CO., LTD., Chengdu, Sichuan 610512, China