Exploration and development of Ceiba Field, Rio Muni Basin, Southern Equatorial Guinea

Ceiba Field, offshore Equatorial Guinea approximately 75 km southwest of the port of Bata and 275 km south of the city of Malabo, was discovered with the drilling of Ceiba-1 in September 1999. The first appraisal well, Ceiba-2, was drilled in November 1999 approximately 1.6 km southwest of Ceiba-1. Both wells were based on interpretation of 2D seismic data acquired between 1984 and 1999. Open-hole logs, cores, pressure data, and a drill stem test of Ceiba-1 (maximum flow rate of 12 400 b/d) indicated that both wells contained Cretaceous sands of very high quality, capable of high rates of oil production.