The possibility of applying a digital X-ray laminography method to the example of mapping the fluid distribution in porous media is studied. The study is performed on the basis of a system which models the process of oil displaced by water and gas as occurs in oil field development. Two methods of tomographic section recovery are discussed: geometric and algebraic, and their application for different specimen structures is made. It is shown that when scanning with steps of 25 mu m, 100 mu m, 250 mu m, or 2 mm it is possible to determine the distribution of concentrations of heterogeneities for multiphase fluid inside a porous core sample layer, giving advantages compared to simple shadow pictures.