Lithofacies characterization and source rock assessment of the lower-middle Miocene Successions in the northern part of Ramadan oil field, central Gulf of Suez, Egypt

Abstract Facies of rifting basins reflect different depositional environments from deep to shallow conditions. The present study focuses on subsurface facies characterization and source rock assessment Kareem Rudeis rocks in six wells lying the central Gulf Suez. distribution lithologic patterns delineated through several constructed maps. Porosity cross-plots formations determine minerals porosity attitudes. Rock–Eval pyrolysis was applied kerogen type, organic matter richness, percentage, maturation rocks. greater depth two reflected western parts while their stratigraphic thickness increases toward east north directions, with decreasing towards west direction due an underlain basin structure pre-Miocene. Isolith maps show three marine lithologies for anhydrite as a fourth lithology Formation only. These lithofacies turnover environment. change main shaly limestone calcareous shale formation, indicating transmutation lower Miocene middle environments. existence limestone, shale, anhydrite. Geochemically, both are marginally good generation mixed type II/III III. Accordingly, could be reservoirs rather than being potential