Tullow logs third Kaiso-Tonya well in Uganda

Tullow Oil, operator and 100% interest owner of Uganda's Block 2, has drilled and logged the final well in its three-well appraisal program in the Kaiso-Tonya area.

By OGJ editors
HOUSTON, Oct. 2 -- Tullow Oil PLC, operator and 100% interest owner of Uganda's Block 2, has drilled and logged the final well in its three-well appraisal program in the Kaiso-Tonya area.

The Mputa-4 appraisal well, drilled 1 km east of the Mputa-1 discovery, was to test an adjacent fault block. The well reached 1,073 m TD and encountered three oil-bearing zones with a total net pay of 15.4 m.

The company's Mputa-3 well also intersected three oil-bearing zones, with a total net pay of 19.5 m, the best result to date in the appraisal area, Tullow said. Well data indicate that all three zones in Mputa-3 could flow at a combined rate of more than 4,000 b/d of oil. The well was being suspended as a future producer (OGJ Online, Aug. 23, 2007).

Downhole pressure testing and sampling of Mputa-4 indicated moveable light, sweet crude with very good permeability, as seen in the other Mputa wells.

The Mputa-4 appraisal well has proved the lateral extent of oil-bearing reservoirs across the region. And the data from this program, which includes 3D seismic surveys and possible further production testing on existing wells, will help to determine the ultimate potential of the area and provide critical information for the early production system development, Tullow said.

More in Exploration & Development