1. Imperial College London, Centre for Reservoir Geophysics, Resource Geophysics Academy, Department of Earth Science and Engineering, London SW7 2BP, UK..
2. China University of Petroleum (Beijing), State Key Laboratory of Petroleum Resources and Prospecting, Changping District, Beijing 102249, China.(corresponding author).
3. Sinopec Southwest Petroleum Bureau, E&P Research Institute, Chengdu 610041, China..