Sociedade Nacional de Combustíveis de Angola (Sonangol) and BP announced the Ceres-1 oil discovery in ultra-deepwater block 31, offshore Angola.
Ceres-1 is the sixth successful discovery BP has drilled in block 31, following Pluta, Saturno, Marte, Venus, and Palas. It is 32 km southeast of the Plutão discovery, and 31 km northeast of the Palas discovery announced earlier in 2005.
Semisubmersible drilling rig theLeiv Eiriksson drilled Ceres-1 in 1,633 m of water 360 km northwest of Luanda, Angola, and reached a total depth 4,334 m.
The well tested at a maximum rate of 5,844 b/d through a 44/64 in. choke. Further work is ongoing to evaluate the size of the discovery.
Sonangol is the concessionaire of block 31. BP as operator holds 26.67%.
Partners in block 31 are Esso Exploration and Production Angola (block 31) Ltd. 25%, Sonangol EP 20%, Statoil Angola AS 13.33%, Marathon Petroleum Angola Ltd. 10%, and TEPA (block 31) Ltd. (a subsidiary of the Total Group) with 5%.