Wetting Dynamics of Spontaneous Imbibition in Porous Media: From Pore Scale to Darcy Scale

Spontaneous imbibition has been receiving much attention due to its significance in many subsurface and industrial applications. Unveiling pore-scale wetting dynamics, particularly upscaling the Darcy scale are still unresolved. In this work, we conduct image-based pore-network modeling of cocurrent spontaneous corresponding quasi-static imbibition, homogeneous sintered glass beads as well heterogeneous Estaillades. A wide range viscosity ratios wettability conditions taken into account. Based on our results, show influence heterogeneity dynamics nonwetting entrapment. We elucidate different pore-filling mechanisms which helps us understand dynamics. Most importantly, develop a non-equilibrium model for relative permeability phase, adequately incorporates This is crucial final goal developing two-phase with measurable material properties such capillary pressure permeability. Finally, propose some future work both numerical experimental verifications developed model.