Heritage Oil to test deeper zones in Ugandan well

Feb. 16, 2007
Heritage Oil Corp. plans a production test of deep intervals in the Kingfisher-1A deviated exploration well on Block 3A in Uganda.

By OGJ editors
HOUSTON, Feb. 16 -- Heritage Oil Corp. plans a production test of deep intervals in the Kingfisher-1A deviated exploration well on Block 3A in Uganda. Three intervals, with a total thickness of 44 m, are to be tested at depths of 2,260-2,367 m.

The upper zone of the Kingfisher-1 well, at a depth of 1,783 m, was tested successfully in November 2006, flowing at a stabilized rate of 4,120 b/d through a fixed 1-in. choke at a wellhead pressure of 221 psi. The reservoir had permeability of over 2,000 md.

The 30° gravity oil was sweet with a low gas-oil ratio and some associated wax (OGJ Online, Nov. 7, 2006).

Kingfisher-1A was drilled to 3,195 m. Wireline logs and formation pressure testing indicated hydrocarbons over the planned test intervals, the thickest of which is 21 m.

The production test is scheduled to start by Feb. 25 and is expected to take as long as 3 weeks.

Heritage operates Block 3A, holding 50% interest, and Tullow Oil holds 50% interest.