Heterogeneity and influencing factors of marine gravity flow tight sandstone under abnormally high pressure: A case study from the Miocene Huangliu Formation reservoirs in LD10 area, Yinggehai Basin, South China Sea

FAN Caiwei,CAO Jiangjun,LUO Jinglan,LI Shanshan,WU Shijiu,DAI Long,HOU Jingxian,MAO Qianru

Fig. 2. Diagrams of sandstone types (a) and mineral composition (b) in Huangliu Formation and reservoir at the similar depth in different pressure zones in LD10 block, Yinggehai Basin (revised according to classification map from reference [23]). I—quartz sandstone; II—feldsparthic quartz sandstone; III—lithic quartz sandstone; IV—feldsparthic sandstone; V—lithic feldsparthic sandstone; VI—feldspathic litharenite; VII—litharenite.