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International Petroleum Corporation, P.O. Box 9211, Dubai, UAE
The Nubia sandstone, the primary reservoir in B-trend oil fields (GS 365, Sidki, East Zeit, and Hilal) was mapped by projecting from the deepest reliable seismic event (base of Miocene evaporites), using the intermediate isopach maps. This was based on Gebel El Zeit stratigraphy and structure. The Gebel El Zeit outcrop lying 10 km to the west was used to describe a geological model analogous to the fields; since a close correlation was found between structural style and Miocene stratigraphy in both the surface and the subsurface data sets. The implementation of this subsurface model results in the enhancing of the oil potential of the B-trend.