Facies Analysis and Sedimentary Environments of The Jurassic - Cenomanian Rocks in Ras Budran Oil Field and Surroundings, Gulf of Suez, Egypt
M. H. El-Azabi1, Kh. Abd Elaal Toghian2
(1) Fac. of Sci. Cairo University, Giza, Egypt (2) Suez Oil Company (SUCO), Giza, Egypt
Gulf of Suez basin is the most prolific oil province in Egypt, although its complex nature, it contains the largest part of production and reserves. Production is derived from clastic and carbonate sediments that range in age from Paleozoic to Miocene. Most of the oil occurs in sands of the carboniferous, Cretaceous and Miocene ages. In Ras Budran oil fields, the Jurassic-Lower Cretaceous sands are the main hydrocarbon reservoir, while the Cenomanian forms a reservoir rock of some adjacent oil fields. The intent of the present research is to determine the sedimentological characteristics and palaeoenvironments of the Jurassic-Cenomanian siliciclastic/carbonate sediments in Ras Budran oil field and surrounding areas. This sedimentological study deals with the description and interpretation of the various sediment types and their microfacies associations, depositional cycles and palaeoecologic conditions that were prevailing during the sediment accumulation. Determination of lateral facies variations, geometry and orientation of sand bodies, sedimentation breaks and main tectonic events that affected the area will be involved. The study helps to formulate ideal sedimentation models for the studied successions. Moreover, time correlative sediments widely prevalent in the adjacent localities will be reviewed to enable a more visual view for the facies development in the area.