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Presented by Julie Cass, GSWA. The Ordovician interval cored in Olympic 1 is one of the best-documented cored intervals of the Nambeet Formation in the Canning Basin. Consequently, the Geological Survey of Western Australia (GSWA) entered into a collaborative core analysis agreement with the EP473 Joint Venture to acquire a suite of core plugs for stratigraphic and petroleum system testing and CO2 geosequestration evaluation.

This presentation offers an integrated interpretation of petrophysical and petrographic data acquired at Olympic 1, assessing reservoir quality in the Ordovician and the impact of acoustic properties on seismic prospecting at the Meda unconformity. Volume of clay, porosity and saturation have been calculated from wireline logs to assist in the petrophysical evaluation and for comparison with x-ray diffraction, routine and special core analysis measurements.