Enrichment and exploration of deep lacustrine shale oil in the first member of Cretaceous Qingshankou Formation, southern Songliao Basin, NE China

ZHANG Junfeng,XU Xingyou,BAI Jing,LIU Weibin,CHEN Shan,LIU Chang,LI Yaohua

Table 1 Comprehensive evaluation index of shale oil sweet spot in the continental Qing 1 Member of southern Songliao Basin.

Reservoir classification S1/(mg·g-1) S1/TOC Brittleness index/% SI/% Ⅰ >2 >100 >40 >50 Ⅱ 1-2 80-100 30-40 30-50 Ⅲ <1 <80 <30 <30