The debate on the energy transition and on methods of mitigating the effects of climate change have been the focus of many researches in recent years. One of the main methods studied to reduce the emission of greenhouse effect gases is the geological storage of CO2 through the injection of this gas in oil reservoirs as an enhanced oil recovery method, in depleted reservoirs, or in deep saline aquifers. Relative permeability is one of the main factors that dictate multiphase flow in a porous medium, being a parameter capable of describing the relative proportion of relative flows during the displacement of fluids in situ.