Italian major Eni encountered 32metres Net Oil Sand in a gross column of 76metres, in Sankofa East 2A, its first appraisal of the Sankofa East oil discovery, in Ghana’s prolific deepwater Tano Basin. The oil is 30° API, and is stored in sands of cretaceous age.
The well also saw 17metres net gas and condensate out of 23metres of column net), and 76m of gross oil pay in sands of cretaceous age.
Eni’s spokesmen say that the Offshore Cape Three Points (OCTP) block is estimated to contain nearly 450 million barrels of oil and recoverable resources of about 150 million barrels.
The well, which was spudded in 990 meters of water, reached a total depth of 4,050m and discovered extension of the oil reserve in the Cenomanian sequence.
Information from the drilling has confirmed hydraulic communication in the oil prone reservoir between the discovery and the appraisal well, which has prompted Eni to start commercial exploitation of the oil reserves. Eni, through its subsidiary, Eni Ghana Exploration and Production operates the block with 47.2% interest and has partners including Vitol Upstream with a 37.8% interest and Ghana National Petroleum with the remaining 15% interest including an option for an additional 5% share.