1. Shale Gas Research department of Southwest Institute of Geophysical Exploration BGP INC., CNPC , Chengdu , 610213 , China
2. Borehole Geophysical prospecting department Southwest Branch Company, BGP INC., CNPC , Chengdu , 610213 , China
3. Chengdu Branch of Research & Development Center, BGP INC., NPC , Chengdu , 610213 , China
4. Southwest Institute of Geophysical Exploration BGP INC., CNPC , Chengdu , 610213 , China