Characterization Method of Tight Sandstone Reservoir Heterogeneity and Tight Gas Accumulation Mechanism, Jurassic Formation, Sichuan Basin, China

Figure 9

Capillary force curves for the four samples used in the simulations. As the surrounding rock, sample 1 has the highest capillary pressure of four samples and the other three capillary curves can enclose areas with the capillary curve of the surrounding rock. Three areas can be observed in this figure. Different colors distinguish them; the green area represents the capillary pressure difference between sample 1 and sample 2, which is used as the surrounding rock and center sandy body of simulation 1. The blue and the black areas represent simulation 2 and simulation 3.