Geostatistical simulation is used in risk analysis studies to incorporate the spatial uncertainty
of experimental variables that are significantly under-sampled. For example, the values of
hydraulic conductivity or porosity are critical in petroleum reservoir production modelling and
prediction, in assessing underground sites as waste repositories, and in modelling the
transport of contaminants in aquifers. In all these examples connectivity of the permeable
phase or permeable lithofacies is a critical issue. Given an indicator map on a regular two-or …