The object-based stochastic approach in facies modelling is important in the construction of
geologically consistent 3-D reservoir models and in constraining the distribution of
petrophysical properties. Tortuosity factor facies porosity and cementation factor constitute
major uncertainties in the generated 3-D static model of the Niger Delta Basin. Reservoir
quality in the Dahomey Basin is mainly controlled by detrital matrix carbonate cement and
iron oxide and iron oxyhydroxide cements.