Positive vibrations: off Ghana
- Kosmos's Ghana sale bid ‘illegal’
- CNOOC may upset ExxonMobil's Jubilee bid
- GNPC still wants Jubilee slice
- Oando is named as Jubilee partner
- Tullow sets out Jubilee welcome mat
- GNPC takes close look at Jubilee deal
- Uganda's take of 80% hits Tullow
- Leader in 'front men' warning
- Eni buys slice of Ghana gas find
- Oando bags Jubilee gas gig
- ExxonMobil 'joins Jubilee'
Kosmos extends Jubilee with Ghana hit
Kosmos has hit 43 metres of net hydrocarbon pay with the Mahogany-4 appraisal well off Ghana, which extends the Jubilee field eastwards.
The Mahogany-4 well, which lies in the West Cape Three Points licence, struck light oil columns in sandstone reservoirs, reported co-venturer Tullow Oil.
Mahogany-4 is the eastern-most well on the Jubilee field to date and has been drilled to evaluate its lateral extent and to explore deeper potential reservoir targets.
Results of drilling, wireline logs and samples of reservoir fluid confirm that the Jubilee field extends beyond this location, which is 3.3 kilometres south-east of Mahogany-2 and 3.8 kilometres north-east of Mahogany-3. Oil bearing sands have been encountered on prognosis with 15 metres of net pay in the main Jubilee reservoirs.
Below the main Jubilee reservoirs, the well hit 20 metres of net oil pay in a new sand, a four metre wet gas sand and four metres of net oil pay in Mahogany Deep-aged reservoirs. The potential of these underlying reservoirs will be investigated with further exploratory wells in the area.
Mahogany-4 was drilled by the Atwood Hunter semi-submersible rig to a depth of 3680 metres in a water depth of 1079 metres. Following the conclusion of operations, the rig will move to drill the J-03 Jubilee development well.
Also in the West Cape Three Points licence, about five kilometres south-west of the Mahogany-4 well, the Aban Abraham drillship has commenced drilling Mahogany Deep-2. The well will appraise the field’s southern extent and a result is expected in November.
Tullow has a 22.896% interest in the West Cape Three Points licence and its partners are Kosmos Energy (Operator) and Anadarko Petroleum Corporation, (30.875% each), the E.O.Group (3.5%), Sabre Oil & Gas (1.854%) and the Ghana National Petroleum Corporation (GNPC) (10% carried interest).