Reconstruction of clastic porous media

In this paper we present a refinement of an algorithm (Pilotti, 1998) to generate three-dimensional granular media by deposition of spherical grains in a viscous fluid. The proposed improvements allow the construction of clastic porous media made up of irregular grains, with controlled level of angularity, sorting and porosity. On the basis of visual comparison with prototypal cross sections and of computed two points correlation functions, we argue that the intergranular void spaces resulting from this procedure provide a satisfactory reproduction of the micro-geometry of several clean consolidated sandstones and can be used to explore the effect of void topology on the flow field properties.