1. University of Electronic Science and Technology of China (UESTC), School of Resources and Environment and Center for Information Geoscience, Chengdu, China.
2. PetroChina Southwest Oil and Gas Field Company, Chengdu, China.
3. University of Electronic Science and Technology of China (UESTC), School of Information and Communication Engineering and Center for Information Geoscience, Chengdu, China.
4. BGP Inc. China National Petroleum Corporation, Zhuozhou, China. (corresponding author)