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 |
Fig. 13. Pore size distribution curves of different lithofacies of shale samples from the Qing 1 Member before and after step extraction. |