Funding for this research was provided by:
Open Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (PLN201627)
the Scientific Research Starting Project of SWPU (2017QHZ031)
the Natural Science Project of Sichuan Province Department of Education (17ZA0425)
Young Scholars Development Fund of SWPU (201599010100)
Article History
Received: 14 January 2018
Accepted: 8 November 2018
First Online: 20 November 2018