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Friday, May 16, 2014
Tullow Oil and Africa Oil reported on Kenya operations from Blocks 10BB and 13T in their quarterly results statements. Twiga-2 on Block 13T found net oil pay and the Ekunyunk-1 found ‘best sands’ on the eastern flank although the trap was incompletely formed.
The companies reported that the Twiga-2 sidetrack encountered 62 meters of net oil pay. Africa Oil said that the Sakson PR5 rig was continuing drilling operations on the Twiga-2 up-dip appraisal well and the initial wellbore was drilled near the basin bounding fault and encountered some 18 meters of net oil pay within alluvial fan facies, with limited reservoir quality. A decision was then made to sidetrack the well away from the fault to explore north of Twiga-1 and where some 62 meters of vertical net oil pay was then discovered in the Auwerwer formation, similar in quality to the initial Twiga-1 discovery.
Africa Oil went on to say that the well was currently being deepened to evaluate the Lower Lokhone potential and a testing program for the well is planned for later this year.
The Ekunyuk-1 well on Block 10BB was drilled on trend with Tullow and Africa Oil’s recent discoveries at Etuko and Ewoi. The well reached a final total depth of 1,802 meters and encountered around five meters of net oil pay, within approximately 150 meters of reservoir quality water-bearing sandstone and an equal thickness of a basin-wide rich oil shale. This rig will now be moved to the Agete-2 location.
The partners are also actively pursuing development studies in the Block 10BB/13T area including commencement of the pre-FEED and environmental and social impact assessment studies for the pipeline, export terminal, and field facilities. It is the goal the government of Kenya and the JV partnership to achieve project sanction, including the approval of an export pipeline, by the end of 2015/early 2016.
Angus McCoss, Exploration Director, Tullow Oil plc, commented : “I am pleased to announce that the Twiga-2 exploratory sidetrack has encountered material oil-bearing sandstone reservoirs north of Twiga-1. The combined results from Twiga-2 and its successful sidetrack confirm the resource potential and have given us valuable insights for the locations of future exploration and development wells. The Ekunyuk-1 well encountered the best developed reservoir sands so far on the east flank, although at this location the trap appears to be incompletely formed. Additionally, the presence of a thick extensive oil shale gives us new options to study the basin’s substantial unconventional oil potential.”
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