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

Figure 12

(a) Relationship between illite content and porosity changes. (b) Relationship between chlorite content and porosity changes. (c) Relationship between illite content and permeability changes. (d) Relationship between chlorite content and permeability changes.

(a)

(b)

(c)

(d)