Role Played by Oil Emplacement in Controlling Pore Network Evolution of Tight Sandstones

Figure 11

Diagenetic sequences of Chang 8 sandstone. MC: mechanical compaction; CC: chemical compaction; Ch: chlorite; Ka: kaolinite; Il: illite; I/S: illite smectite mixed layer; QC: quartz cement; Ca: carbonate; An: ankerite; FD: feldspar dissolution.