Stochastic Models of Reservoir Heterogeneity: Impact on Connectivity and Average Permeabilities

Abstract

Probabilistic techniques are being increasingly used for modelling reservoir heterogeneity. A wide variety of models are now available, which all differ in their underlying assumptions, range of application, complexity of usage and computer efficiency.Each technique has its own unconditional supporters. However, for the non-specialist, choosing one method is not trivial. Which method is best suited to a particular modelling context? After all, does it really matters from a practical, engineering point of view?These are the basic questions we are addressing here.After a review of current heterogeneity modelling techniques, a few