SIMULATION OF RESERVOIR HETEROGENEITY, CONTRIBUTION IN SOLVING THE MASS-TRANSFER EQUATIONS IN POROUS SATURATED MEDIUM

Among the recent developments in quantitative hydrogeology, one of the first places is occupied by the heterogeneities of aquifers in the mo delling of flow and transport equations. The purpose of this paper con cerns the coupling of solute transport in heterogeneous porous media a nd the numerical simulation of aquifer parameters. With the help of th is technique, it becomes possible to quantify what the uncertainties o n the knowledge of the aquifer could induce on the results of a mass t ransfer. The aim of this approach is to return a kind of probability v alue that an event occurs. It seems to us that this result is much bet ter than the classical unique solution of a problem, the validity of w hich remains difficult to assess. Moreover, one proves that the ''pseu do-homogeneous'' reservoirs we are used to consider may produce result s of a mass transfer which clearly diverge from what is usually expect ed.