Nested Stochastic Simulations: A New Approach in Assessing Spatial Distribution of Carbonate Sedimentary Facies and Associated Diagenetic Overprints

摘要

This paper presents a synthetic modelling workflow applied to a large oolitic ramp derived from outcrop and field observations. This new approach is based on nested stochastic simulations, geologically-driven and derived from the relationships between dolomite type, stratigraphic position, palaeogeographic position, depositional facies, and proximity to fault/fracture zones. In addition to the initial depositional model, three diagenetic phases are modelled successively in order to restore the complex spatial relationship existing between diagenetic alterations.