RECONSTRUCTED POROUS-MEDIA AND THEIR APPLICATION TO FLUID-FLOW AND SOLUTE TRANSPORT

It is possible to simulate geological media with the same porosity and correlation function of the pore space as real ones. This method is i llustrated by two- and three-dimensional examples and discussed. Then, programs able to solve the local field equations in any geometry are used to study various transport processes such as convection, diffusio n and Taylor dispersion in these media whereby macroscopic quantities such as permeability, formation factor and dispersion tensor are obtai ned; the first two quantities are compared to experimental data in Fon tainebleau sandstones.