Discovery and geological knowledge of the large deep coal-formed Qingyang Gas Field, Ordos Basin, NW China
FU Jinhua,WEI Xinshan,LUO Shunshe,ZUO Zhifeng,ZHOU Hu,LIU Baoxian,KONG Qingfen,ZHAN Sha,NAN Junxiang
Fig. 6. Proportion of different types of pores in Shan 1 Member sandstone reservoir of Qingyang Gas Field.