Geological characteristics and development potential of transitional shale gas in the east margin of the Ordos Basin, NW China

KUANG Lichun,DONG Dazhong,HE Wenyuan,WEN Shengming,SUN Shasha,LI Shuxin,QIU Zhen,LIAO Xinwei,LI Yong,WU Jin,ZHANG Leifu,SHI Zhensheng,GUO Wen,ZHANG Surong

Fig. 2. S-N well-tie section of Carboniferous - Permian in the east margin of the Ordos Basin (see Fig. 1 for the section location; GR—natural gamma; Vsh—shale content).