Characterization of favorable lithofacies in tight sandstone reservoirs and its significance for gas exploration and exploitation: A case study of the 2nd Member of Triassic Xujiahe Formation in the Xinchang area, Sichuan Basin

LIU Junlong,LIU Zhongqun,XIAO Kaihua,HUANG Yanqing,JIN Wujun

Fig. 5. Histrograms of porosity (a) and permeability (b) of various lithofacies in T3x22 sub-member (N—sample number).