The authors describe the outline of stratigraphy, geological structure and characteristics of hydrocarbon accumulations in the Northern Oman including Japex Oman Ltd's., contract area.
The sedimentary sequence in the Northern desert of Sultanate of Oman ranges from the Proterozoic through Mesozoic to Tertiary, and seems to be extended from Abu Dhabi and Dubai regions. Eleven named groups are recognized: in stratigraphic ascending order, Huqf (Pre-cambrian), Haima (Lower Paleozoic), Misfar (Devonian), Haushi and Akhdar (Carboniferous to Triassic), Sahtan (Jurassic), Kahmah (Lower Cretaceous), Wasia (“Middle Cretaceous”), Aruma (Upper Cretaceous), Hadhramaut (Paleogene) to Fars (Neogene). The basement has not been tapped by wells yet in the northern part of Oman.
In the Northern Oman, four tectonic provinces are presently established as Suneinah Trough, Front of Hawasina Nappe, Fahud Salt Basin and Lekhwair High.
Hydrocarbon accumulations have been recognized currently in the Lower and Middle Cretaceous, however, the economic quantities of oils are found in the Garboniferous, Permian and Jurassic recently, in the Northern Oman.
