Quantitative Characterization of Pore Space for the Occurrence of Continental Shale Oil in Lithofacies of Different Types: Middle Jurassic Lianggaoshan Formation in Southeastern Sichuan Basin of the Upper Yangtze Area

Figure 4

Pore volume features based on the joint characterization for full-scale pore size of different shale samples in TY1 well. Green: pore volume data of shale samples before the extraction of shale oil; Red: pore volume data of shale samples after the extraction of shale oil.

(a) 2403.93 m, organic-bearing mixed shale

(b) 2466.7 m, organic-rich clayey shale

(c) 2470.82 m, fine sandstone

(d) 2515.82 m, organic-bearing clayey shale

(e) 2527.04 m, organic-rich clayey shale

(f) 2540.45 m, organic-rich clayey shale

(g) 2542.24 m, organic-rich clayey shale

(h) 2547.35 m, organic-rich mixed shale

(i) 2552.98 m, organic-rich clayey shale

(j) 2555.65 m, organic-rich clayey shale

(k) 2573.32 m, organic-rich mixed shale

(l) 2576.98 m, organic-bearing clayey shale

(m) 2579.45 m, organic-bearing clayey shale

(n) 2589.7 m, organic-bearing clayey shale