Rock Physics Modeling of Diagenetic Processes of Pre-salt Carbonates

The acoustic properties of carbonate reservoirs are strongly controlled by pore space architecture resulting from both depositional and diagenetic processes. As a consequence seismic inversion in highly diagenetized sedimentary systems such pre-salt non-marine carbonates requires first a quantification of the mineralogic, pore volume, pore geometry and fluid effects on acoustic impedance. In addition such a poro-elastic modelling approach must be coupled with the characterization and quantification of the diagenetic processes controlling the pore space architecture and mineralogy in order to constrain the seismic inversion and to compute geologically realistic models of carbonate reservoirs in 3D.