Location and Ownership
The Cameia prospect is on Block 21 offshore Angola in 1,700 m of water. Cobalt Energy operates the field with 40% interest with concessionaire Sonangol E.P. (20%), Nazaki Oil and Gáz S.A. (30%), and Alper Oil Limitada (10%).
Discovery and Appraisal Activity
Cobalt spud the Cameia-1 well in 3Q 2001 using the Diamond Offshore Ocean Confidence semisubmersible. In July 2012, the operator announced that it had discovered hydrocarbons at its Cameia #2 appraisal well. Lowest know oil was at least 135 m deeper at Cameia #2 than Cameia #1. Cameia #2 is about 3.5 km south of the Cameia #1 pre-salt discovery well. In August 2012, Cobalt preformed a production drill stem test and announced the results in April 2013. According to Cobalt, the drill stem test of the lowest interval drilled in the Cameia #2 well did not produce measurable hydrocarbons. However, it did confirm the existence of a lower interval potentially capable of high flow rates across the basin, which had not previously been penetrated. The Cameia #2 well also confirmed the presence of the same high quality hydrocarbon bearing mound reservoir that was penetrated by the original Cameia #1 discovery well. The Ocean Confidence temporarily abandoned the Cameia #2 well. It will be used as part of the Cameia Mound Development Project, which is expected to be sanctioned in early 2014.