The appraisal well, 4-31-11, located west in the block at a water depth of 458 meters, encountered oil in Miocence reservoirs in two adjacent compartments. During a test of Compartment B the well produced 5,346 barrels a day of 26 degree API. Samples were collected from compartment A. Technical studies of the reserves as an extension of the Gimboa Project are ongoing.
The Gimboa field, discovered in 2004 by exploration well 4-41-1, is currently under development, with an anticipated production start up in the third quarter of 2008 of approximately 50,000 barrels of oil per day.
Sonangol EP is the Concessionare of block 4/05. The contractor group consists of Sonangol P&P (operator) 50%, Norsk Hydro Quatro AS (20%), Somoil (15%) and ACR (15%).
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