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 GHANA
West Africa
Ghana has offshore geology similar to Côte d’Ivoire
overlying the Abidjan basin. In Ghana its two sub-basins are called Tano
and Saltpond.
The very small Saltpond field was discovered in 1970,
whilst South Tano and North Tano were discovered in 1978 and 1981
respectively. First offshore production was in 1978 from Saltpond at a
few hundred Bbls per day but it was abandoned in 1985.
 South Tano, further offshore, came onstream in 2006 at
around 2,000 Bbls per day with 0.35 Bcm of gas per year. Redevelopment
of Saltpond may also eventually include a pipeline to take associated
gas to shore.
Meanwhile Dana Petroleum discovered oil in the Western
Tano 1X well in 2000 and an appraisal well was drilled in 2002. Along
with the state company, Ghana National Petroleum Corp (GNPC) other
companies are exploring for oil and gas all along the coast including in
the east in the Keta Basin.
The lack of shallow water success and the likely
small size of offshore fields will probably lead to only modest
increases in short term production in shallow waters as new FPSO technology is used to develop discoveries.
However Hunt Oil licensed the first fully deepwater
block in 1996 and the deep water licences have had various owners.
Anadarko, technical operator of the West Cape Three Points Block in the
Tano Basin drilled the Mahogany discovery in 2007 in 1,320 metres of
water followed by Kosmos' Hyedua discovery. These two fields have been
found to be connected and have been dubbed Jubilee. This one field will substantially increase Ghana's production within a
decade.
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