First Published: GEOExPro, June 2021
Abstract
Newly reprocessed ~60,000 km 2D seismic data provides the ideal platform to support renewed exploration efforts in Colombia after recent gas discoveries. The Pre-Stack Time Migration (PreSTM) seismic section, seen below, is the result of modern, proprietary workflow applications. Eighteen vintage surveys that make up this project are now a single, contiguous survey. This work has revealed key details of the Caribbean Large Igneous Province (CLIP) and the southern transition to the South American margin. Key regional units and unconformities can now be mapped with a higher confidence for a better understanding of the tectonostratigraphic framework. In the southern region of the basin, internal features are now imaged in the structurally complex Sinu Prism and the South Caribbean Deformed Belt. Initial observations include a well-imaged Moho across the Colombian Basin, which now allows for a better understanding of the CLIP’s crustal architecture.
Introduction
Colombia’s offshore potential has been highlighted by recent discoveries in the deepwater sector. Petrobras’s Orca gas discovery was the first significant find in 2014, followed by Anadarko’s Kronos, Gorgon, and Purple Angel gas discoveries from 2015 to 2017. These exploration successes have renewed the interest in offshore Colombia with many operators targeting analogue structures along the margin in the hope of similar discoveries.
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