1. China University of Petroleum (East China), Key Laboratory of Deep Oil and Gas, Qingdao, Shandong 266580, China and China University of Petroleum (East China), School of Geosciences, Qingdao, Shandong 266580, China.(corresponding author); .
2. CNOOC China Limited Hainan Branch, Haikou, Hainan, 570300, China..
3. China Oil Field Services Ltd., Oil Field Technology Department, Sanhe, Hebei 065201, China..
4. University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, Texas 78712, USA..