Mechanical-Chemical-Mineralogical Controls on Permeability Evolution of Shale Fractures

Figure 2

Experimental configuration for core flooding experiments: pump A controls the confining pressure (normal stress) applied on the fracture. Pump B controls axial pressure which is set to 500 kPa to ensure that the piston contacts with tightly with the sample. Pump C injects fluid with a different acidity at a constant pressure of 120 kPa. The prepared sample is placed between two stainless steel end platens faced with flow distributors and sealed within a latex membrane.