Rock typing is an essential step in carbonate reservoir characterization and geological model building for reservoir simulation. A static rock type is defined as "a rock unit characterized by similar depositional and digenetic processes resulting in a typical and unique Ø-K relationship and capillary pressure curve at given wettability. Reservoir representative rock types lead to a better understanding of reservoir fluid movement and oil recovery.

This paper establishes a deterministic rock type scheme in a carbonate reservoir and presents a methodology to distribute these rock types vertically and laterally in the 3D geological model using wells data, conceptual model and reservoir structure map obtained from 3D seismic.

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