The Okume-1 well was drilled in 2001 and this success was quickly followed by the Oveng discovery. Three appraisal wells were then drilled on Okume and one on Oveng before the end of 2001. The Akom North, Ebano, Oveng and Elon fields were discovered in 2002.
The development plan for the Okume, Oveng and Elon fields was approved in 2004 and first production was achieved in late 2006. Peak oil production of 81kbopd was achieved in 2010 and to date the Okume Complex has produced approximately 205MMbbls.
Okume platforms and connectivity
The main reservoir sandstone packages were formed within the confines of the submarine canyons during the Coniacian-to-Campanian era. Very fine- to coarse-grained, blocky sandstones are interbedded with claystones. In general, the reservoirs are of very high quality with average porosities of around 26% and average permeabilities measured in darcies.
The Okume Complex fields are a series of stratigraphically trapped deep water channel-levee complexes confined within the Elon and Okume canyons. The Elon field is the shallowest and most proximal, and the Ebano field is the most distal where the channels become less confined by the canyon.