Funding for this research was provided by:
Chinese Academy of Sciences (KLFC201702)
International Technology Collaboration of Chengdu Science and Technology Division (N-14-1)
Innovative Research Team of Southwest Petroleum University (2015CXTD04)
Article History
Received: 9 January 2020
Accepted: 10 June 2020
First Online: 29 June 2020
Conflict of interest
: The authors declare that they have no conflict of interest.