Mesozoic to Cenozoic Depositional Environments & Fluid Migration Within the Caswell Sub-Basin: Key Insights from new Interpretation & Modelling of the Schild Phase 2 3D

Abstract

CGG Multi-Client & New Ventures have undertaken new interpretation and modelling, including stratal slicing and attribute analysis on the Schild Phase 2 3D located 170km off the north-west coast of Australia within the Caswell Sub-basin. The key objectives of the interpretation were to enhance understanding of prospectivity, paleogeographic settings and produce new insights into deeper Mesozoic – Paleozoic plays based on broadband imaging of up to 20km of sedimentary section. The following is a discussion on 2 key focus elements of the interpretation derived from the attribute analysis, comprising the identification of extensive vertical fluid / gas migration features, and fluvio-deltaic and submarine channel complexes at multiple stratigraphic levels.