Reservoirs properties of slump-type sub-lacustrine fans and their main control factors in first member of Paleogene Shahejie Formation in Binhai area, Bohai Bay Basin, China

PU Xiugang,ZHAO Xianzheng,WANG Jiahao,WU Jiapeng,HAN Wenzhong,WANG Hua,SHI Zhannan,JIANG Wenya,ZHANG Wei

Fig. 7. Types of storage space in sandstone reservoirs of the Sha 1 Member in the coastal area. Well Binshen 1, 3602.0 m, Es1s, enlarged intergranular dissolution pores and intragranular dissolution pores, (-); (b) Well Binhai 4, 5356.8 m, Es1x, intragranular dissolution pores in andesite detritus, (-); (c) Well Binhai 4, 4053.4 m, Es1s, dissolved pores in feldspar grains, (+); (d) Well Binhai 4, 5154.8 m, Es1z, unfilled fractures and dissolved pores (-); (e) Well Binshen 1, 4019.0 m, Es1x, micro-fractures in nearly parallel arrangement, with bitumen filling, (-); (f) Well Binshen 1, 4019.0 m, Es1x, intergranular dissolution pores and bitumen-filled fractures, (-); (g) Well Gangshen 78, 4220.0 m, Es1x, scanning electron microscopy, micro-fractures in quartz particles; (h) Well Binhai 4, 3778.6 m, Es1s, intragranular dissolution and micro-fractures in feldspar particle, secondary overgrowth of quartz particles, (+).