Integrated multidisciplinary approach for reducing uncertainty in reservoir characterization of the Bahariya Formation, Berenice Field, Egypt

Abstract This study presents an integrated static reservoir characterization of the Upper Cretaceous Bahariya Formation in the Berenice Field, North Western Desert, Egypt. A multidisciplinary workflow combining geological, geophysical, and petrophysical techniques was applied to minimize subsurface uncertainty and enhance hydrocarbon prediction. Seismic interpretation established the structural framework and fault geometries controlling reservoir distribution. A synthetic seismogram was generated to achieve precise well-to-seismic ties, improving the correlation between log-derived parameters and seismic reflectors. Seismic attributes, including variance, dip angle, and dip azimuth, were analyzed to delineate subtle structural and stratigraphic features that are not apparent in conventional seismic data. Petrophysical evaluation from well logs quantified key reservoir properties such as porosity, permeability, and hydrocarbon saturation, forming the foundation for static modeling. Structural and property modeling were integrated to construct a realistic three-dimensional reservoir framework and to distribute petrophysical parameters across the grid, improving the understanding of lateral and vertical heterogeneity. Facies modeling further identified sweet facies and potential new volumetric targets, while fault seal analysis evaluated the sealing capacity of major fault systems and their role in hydrocarbon entrapment. Volumetric calculations provided reliable reserve estimates, and uncertainty analysis was applied throughout the workflow to assess data sensitivity and ensure dependable interpretations. This integrated approach enhances confidence in reservoir characterization and provides a Robust foundation for future exploration and development of the Bahariya reservoir in the Berenice Field.