Factors controlling the development of tight sandstone reservoirs in the Huagang Formation of the central inverted structural belt in Xihu sag, East China Sea Basin

XU Fanghao,XU Guosheng,LIU Yong,ZHANG Wu,CUI Hengyuan,WANG Yiran

Fig. 2. Triangular classification diagram of sandstone clast of the Huagang Formation in the study area (1522 samples).