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

Figure 8

The relationship between adsorption tight oil types and the change of porosity permeability before and after Soxhlet extraction. (a–e) The relationship of emulsion form, cluster form, throat form, thin film form, and isolation form with the change of porosity before and after Soxhlet extraction; (f–j) the relationship of emulsion form, cluster form, throat form, thin film form, and isolation form with the change of permeability before and after Soxhlet extraction.