Impact of Sedimentary Heterogeneity on Reservoir Monitoring in a Turbiditic Channel Complex – Angolan Deep Offshore Girassol Field Case

D017 IMPACT OF SEDIMENTARY HETEROGENEITY ON RESERVOIR MONITORING IN A TURBIDITIC CHANNEL COMPLEX (Angolan deep offshore Girassol field case) Abstract 1 Girassol is a large and complex field located offshore Angola in the block 17 (fig. 1). It is part of the Congo fan and built by deep turbiditic sand channels deposited during Oligocene times. The field is located at 1400 m water depth and was discovered in 1996. With only 1000 m average cap rock burial it is characterized by very good reservoir properties (permeability up to 6 Darcy and porosity up to 40% in unconsolidated sands). It is