Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Basin (NW China)

Figure 12

Diagenetic sequences inferred from textural relationships between authigenic minerals and pore bitumens and oil inclusions. Diagenetic regimes used in this study refer to Morad et al. [9]. Petrofacies A: ductile lithic-rich sandstone; petrofacies B: calcite tightly cemented sandstone; petrofacies C: permeable reservoir sandstone.