Sweet spot evaluation and exploration practice of lacustrine shale oil of the second member of Kongdian Formation in Cangdong sag, Bohai Bay Basin

HAN Wenzhong,ZHAO Xianzheng,JIN Fengming,PU Xiugang,CHEN Shiyue,MU Liangang,ZHANG Wei,SHI Zhannan,WANG Hu

Table 4 Scores of each index and total EI of the quasi-sequences.

Sublayer Scores of each index Total EI S1 Rhythmic structure Clay content TOC Porosity PS4 6 3 10 3 10 6.2 PS3 10 10 6 10 3 8.2 PS2 10 10 10 10 6 9.4 PS1 6 6 10 10 10 8.0