Rock-physics characterization of a Tertiary fluvial reservoir, La Cira-Infantas oil field (Colombia)

Rock-physics analysis and modeling of a Tertiary fluvial reservoir in La Cira-Infantas oil field shows that velocity and acoustic impedance are reliable reservoir quality discriminators. High velocity and acoustic impedance correspond to shales while low velocity and acoustic impedance indicate high-quality sandstone reservoirs. Rock-physics-and-stratigraphy-based interpretation of Pwave seismic data appears to be a promising approach for the detection of depleted, bypassed and untapped reservoirs and deeper pools in mature fields such as La Cira-Infantas.