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Monday, July 6, 2015
Africa Oil reported that its operations have been focused on the South Lokichar Blocks 10BB and 13T where appraisal drilling and extended well tests (EWT) are continuing. In May, the Amosing EWT commenced and five reservoir zones in the field were tested across two wells, being separately produced in one well while pressure responses were measured in the other. Production from all five zones was at a combined average constrained rate of 4,300 bpd under natural flow conditions and a cumulative volume of 30,000 barrels of oil was produced into storage. The pressure data supports significant connected oil volumes and confirms lateral reservoir continuity between the wells which is positive for the future development of the Amosing field.
Having completed the production testing, preparations are now underway for water injection tests into each of the five completed reservoir zones in Amosing-2A. These tests will validate the viability of water flood reservoir management and the oil recovery assumptions for the Field Development Plan.
Elsewhere in the South Lokichar Basin, preparations for the Ngamia field EWT are underway. Multi zone completions were installed in the Ngamia-8, Ngamia-3 and Ngamia-6 wells. Initial rig-less flow testing during clean-up was at a combined maximum rate of 3,900 bpd and 1,740 bpd of 30° to 33° API oil for Ngamia-8 and Ngamia-3 with Ngamia-6 clean-up flow testing ongoing. These initial results are very encouraging.
The PR Marriott 46 rig spud the Ngamia-9 appraisal well on June 13. Following this well, the rig will then move to drill the Twiga-3 and Amosing-5 appraisal wells, completing the 2015 appraisal drilling activities. In Q3 a basin testing exploration well is planned at Cheptuket in Block 12A. The well will test a basin bounding structural closure in a similar structural setting to the successful discoveries along the western bounding rift basin fault in the South Lokichar Basin.
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