(a)
(b)
Figure 9: Liquid (broken lines) and gas (solid lines) saturations evolution for simulations varying from rigid matrix to confined elastic matrix with damage. (a) Rigid solid matrix (cyan) and elastic matrix under confining stress with (magenta) and without (black) damage applied to the elastic phase. (b) Elastic matrix with application of damage model under confining stresses of (red), (green), (magenta), and (blue).