Development characteristics and petroleum geological significance of Permian pyroclastic flow volcanic rocks in Western Sichuan Basin, SW China
PENG Hao,YIN Cheng,HE Qinglin,XIA Guoyong,LIU Yong,MA Tinghu,CHEN Kang,LIU Ran,SU Wang
Fig. 6. Distribution and crossplot of porosity and permeability of volcanic reservoirs in Western Sichuan Basin. n—number of samples; R—correlation coefficient.