ABSTRACT
Commercial accumulations of oil and gas are so far known in four provinces: Gulf of Suez, north Western Desert, the Nile delta and north Sinai. This chapter provides the petroleum geology of each of these provinces. Die bulk of the oil in the Gulf of Suez is housed in sandstones of Paleozoic, Cretaceous and Tertiary age. In the Gulf of Suez province oil is structurally trapped in 'Nubian-type sandstone' reservoirs belonging to the Paleozoic-Mesozoic sandstones and in fissured and fractured limestones of Eocene age. The carbonate reservoirs are present in both the Aptian and Tbronian. The most important of these is the Aptian dolomite first discovered in Alamein field. The shales and compact limestones and dolomite beds of the Cretaceous and Eocene can be efficient cap rocks. The general areas of Western Desert oil and gas fields seem to have had more than one source rock contributing to hydrocarbon accumulation.
