fingerings, with characteristics corresponding to the experimental observations. The effects of wettability, viscosity ratio and interfacial tension were investigated. In strongly water-wet matrix, with grain contact angles of θ<π/8, different micro...

flow instabilities in displacements

through uniform and dual permeability media. Simulations were performed for the uniform

medium with different viscosity ratios (M) and capillary numbers (Ca), ranging three orders of magnitude...