UK-based oil and gas exploration and production company Tullow Oil has announced that the deeper section of the Tweneboa-1 exploration well offshore Ghana, and the Karuka-2 exploration well drilling the Vundu prospect in Uganda’s Block 2 have both encountered oil bearing sands.
On behalf of the Deepwater Tano license partners, Tullow has announced that following the light hydrocarbon discovery reported earlier in March 2009, the Tweneboa-1 well has been deepened to 3,938m and encountered 4m of oil bearing sands as well as an over-pressured zone at total depth.
Tullow Oil has said that the Tweneboa-1 well was drilled by the Eirik Raude deepwater rig in a water depth of 1,148m some 25km west of the Jubilee Field.
According to the company, the Karuka-2 exploration well on the Vundu prospect in Block 2 as been drilled and logged. The well reached a total depth of 897m and encountered limited thin-bedded oil bearing sands from 764m to 772m.
Karuka-2 was located 6km south-west of the Karuka-1 well and was a higher risk well designed to test upside potential in the secondary escarpment play. The Karuka-2 well is being suspended and the rig will then move to drill the amplitude supported Nsoga prospect in the Victoria Nile Delta play which is expected to spud in early April 2009.
Furthermore, the Nabors 221 rig is fully rigged up on the shore of Lake Albert and is expected to commence drilling the Ngassa-2 exploration well imminently. Ngassa is expected to take up to 90 days to drill.
