1. Graduate Student, School of Petroleum Engineering, Southwest Petroleum Univ., Chengdu 610500, People’s Republic of China (corresponding author).
2. Professor, School of Petroleum Engineering, Southwest Petroleum Univ., Chengdu 610500, People’s Republic of China.
3. Graduate Student, School of Petroleum Engineering, Southwest Petroleum Univ., Chengdu 610500, People’s Republic of China.