The Occurrence of Adsorbed Tight Oil and Its Effect on Porosity and Permeability Reduction of Triassic Lacustrine Sandstone Reservoir

Figure 9

The relationship between pore structure types and porosity permeability before and after Soxhlet extraction. (a) Pore structure type and porosity changes. (b) Pore structure type and permeability changes. (c) Pore structure type and porosity change rate. (d) Pore structure type and permeability change rate.

(a)

(b)

(c)

(d)