The Kasamene-3 well was drilled down-dip and 2.2km to the southwest of the Kasamene-1 discovery well. This deviated well was drilled to a total depth of 1,109mt and results of logging confirmed some 10mt of oil pay within a 35mt thick reservoir section of the Kasamene field.
Pressure data confirmed this pay to be in communication with the up-dip Kasamene-1 well, extending the column height of these reservoirs to approximately 100mt. High quality reservoirs, 25mt thick, were encountered on prognosis below the oil-water contact. This outcome proves the viability of this location as a future water injection point to support up-dip oil production, the company said.
A second well, to explore the Wahrindi North fault block, was then drilled utilizing the top-hole section of Kasamene-3. This well, Kasamene-3A, was drilled to a total depth of 988mt into a separate fault compartment 300mt to the southwest and encountered over 15mt of oil pay.
According to Tullow, the rig will now move to the Kaiso-Tonya area to drill the Nzizi-3 appraisal well in support of the accelerated Nzizi gas development project.
Tullow has interests in three licenses in the Lake Albert Rift basin in Uganda. The company operates block 2 with a 100% interest and has a 50% interest in blocks 1 and 3A, which are operated by Heritage Oil (50%).
