Uganda: Tullow extends Kasamene oil field, expects first oil by 2011

Source: Tullow Oil

Tullow Oil announced that the Kasamene-3 and Kasamene-3A wells in the Butiaba region of Uganda Block 2 have successfully delineated the extent of oil in the Kasamene field and discovered oil in the Wahrindi North fault block.

Kasamene Oil Field

The Kasamene-3 well was drled down-dip and 2.2 kilometers to the southwest of the Kasamene-1 discovery well. This deviated well was drilled to a total depth of 1,109 meters, and results of logging confirmed some 10 meters of oil pay within a 35 meter thick reservoir section of the Kasamene field.

Pressure data confirmed this pay to be in communication with the up-dip Kasamene-1 well, successfully extending the column height of these reservoirs to over 100 meters. High quality reservoirs, 25 meters thick, were encountered on prognosis below the oil-water contact. This successful outcome proves the viability of this location as a future water injection point to support up-dip oil production.

Wahrindi North

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 988 meters into a separate fault compartment 300 meters to the southwest and encountered over 15 meters of oil pay.

Kaiso-Tonya Natural Gas Project

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. Tullow operates Block 2 with a 100% interest and has a 50% interest in Blocks 1 and 3A which are operated by Heritage Oil (50%).

“These Kasamene and Wahrindi North exploratory appraisal results have successfully delineated the upside potential in this immediate area,” said Angus McCoss, the exploration director of Tullow Oil. “This takes us a significant step towards first oil in Uganda, which is expected from the Kasamene field in 2011. We continue to work closely with the Government of Uganda on plans for accelerating our exploration and appraisal activities in the region and look forward to commencing a multi-well program with a second rig in Block 1 next month.”



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