Click to view page image in pdf format.
7th Middle East Geosciences Conference and Exhibition
Manama, Bahrain
March 27-29, 2006
Play
Concept of Offshore Salalah - Oman
Exploration Department, Ministry of Oil & Gas (MOG),
P.O.Box 551, Muscat, 113, Oman, phone: +968 24603789, fax: +968 24602541, [email protected]
The area of interest is located offshore Salalah southern part of Block 52. It covers an area of more than 3000 Km2 with bathymetry of less than 1000m. The area is covered by 2D seismic, gravity and magnetics.
Geologically, the area lies within a Tertiary Basin. The rifting of the Gulf of Aden is the key player in the formation of
trapping styles in the area.
Structural
traps are represented by horsts, footwall highs and tilted fault blocks that were
interpreted from seismic. In addition deeper thrust system of the Lower Palaeozoic section might form additional exploration
target.
On the other hand, The Ashwaq Formation represented by Oligocene reefs from onshore Salalah Plain-1 well and the Tertiary and Upper Cretaceous turbidites from Salalah far offshore might form stratigraphic traps.
The Oligocene reefs are excellent reservoir with connected porosities up to 30%. Farther more, the Tertiary and Upper Cretaceous turbidites, and Jurassic clastics and carbonates are likely to have good reservoir quality.
Mudstone facies of Tertiary and Mesozoic ages are expected to be effective and better developed in the offshore compared
to onshore (Salalah Plain-1). Upper Cretaceous Dhalqut Formation could be possible source rocks. In addition the deeper
Huqf source rock facies might be present as indicated from offshore regional
geology
.
In summary, the
play
elements that are present in the offshore Salalah area in both shallow and deep stratigraphic sections
may form multiple exploration targets. New seismic acquisition in deeper water areas away from the existing seismic
coverage could open up new opportunities.