PGS Pacific Colombia MegaProject: New insights from rejuvenation of 2D data offshore Colombia

Latest seismic imaging techniques have been applied to rejuvenate a regional 2D data located between Buenaventura and Tumaco, northwest coast of Colombia. Three different vintages datasets acquired in 1972, 1982, and 2008 have been fully matched and merged resulting a phase-balanced and uniformly scaled contiguous volume. They are upgraded through modern PSTM & PSDM imaging sequences to improve the fidelity of the data revealing previously unseen details within the basins. This area is characterized by the forearc basin structural style in convergent margins, relating to the subduction of the Nazca Plate beneath the western part of South America. The Pacific coastal and offshore regions make up an underexplored geological province, which is potentially prospective for hydrocarbon resources. Surface seeps and oil shows in the few wells that have been drilled to date confirm source rock maturation within the oil window. Seismic interpretation of this study was conducted revealing a regional view of the Tumaco basin that supports a better understanding of tectonic and stratigraphic evolution. Geological interpretation across the entire basin provides new insights for exploration with a better developed understanding of the existing potential petroleum systems.

Speaker Bio

Susana Tierrablanca

Susana Tierrablanca holds a BSc in Geoscience Engineering and has 11 years of experience in the oil and gas industry. Commencing her career with PGS in Villahermosa, Mexico, Susana is now a Geoscientist based in Houston working within a multi-disciplinary team. She has comprehensive experience as an interpreter and salt tectonics specialist across all major offshore basins in north and south America.