Multiscale potential field modelling and integrated interpretation in the underexplored Northern Red Sea

Abstract

Summary Red Sea represents an example of paramount importance in understanding the transition from continental rifting to seafloor spreading and hydrocarbon formation. However, it remains underexplored compared to the Arabian Gulf because of very challenging conditions and vastness. The region lacks homogeneous data coverage, high-quality structural data and quantitative models, all necessary to plan future explorations. We discuss a multiscale modelling workflow including an integrated multi-physics interpretation to unravel the Northern Red Sea complexity. Applied workflow consists of three main tiers. Firstly, available potential fields data were merged with public-domain and legacy data, analyzed in frequency domain, filtered, and enhanced to derive key regional structural elements on interpreted maps. Analytic solutions of regional Moho and basement reliefs were derived using layered inversion of gravity and magnetics. Newly acquired seismic and non-seismic data were, thus integrated with available well logs and public domain data to derive an integrated earth model. The regional models were iteratively refined through 2.5D and 3D modelling with a cooperative approach between seismic and potential fields domain to provide a characterization from regional to local scale. The objective is improving multiscale understanding and supporting future exploration activities in the area by integrating all available geological and geophysical information.