Coupling Relationship between Multistage Fluid Activity and Reservoir Abnormally High-Porosity Zones in the Songtao–Baodao Region, Qiongdongnan Basin

<div>(a) The variation characteristics of porosity; (b) the thermal evolution of organic matter; (c) thermal alteration index from sporopollen color; (d) smectite mineral content of the illite/smectite mixed layer of the diagenetic stage in the Songtao–Baodao region of the Qiongdongnan basin. Note: Ro: organic vitrinite; TAI: thermal alteration index; S: illite/smectite mixed layer.</div>

Geofluids

fig3

Figure 3

Figure 3: Coupling Relationship between Multistage Fluid Activity and Reservoir Abnormally High-Porosity Zones in the Songtao–Baodao Region, Qiongdongnan Basin 

Figure 3 | Coupling Relationship between Multistage Fluid Activity and Reservoir Abnormally High-Porosity Zones in the Songtao–Baodao Region, Qiongdongnan Basin 