Southwest Petroleum University, Southwest Petroleum University, Southwest Petroleum University, Southwest Petroleum University, Southwest Petroleum University, Southwest Petroleum University, Southwest Petroleum University, Southwest Petroleum University, affiliation not provided to SSRN, Southwest Petroleum University, affiliation not provided to SSRN, Southwest Petroleum University, Southwest Petroleum University, affiliation not provided to SSRN, affiliation not provided to SSRN, Southwest Petroleum University, affiliation not provided to SSRN, Southwest Petroleum University, Southwest Petroleum University, Chongqing University - MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems and Kunming University of Science and Technology