VicGCS Report 1 - Geological carbon storage in the Gippsland Basin, Australia: Containment potential
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Product description:Executive summary The Gippsland Basin is widely viewed as the prime site for the development of a large-scale geological CO2 storage industry in Victoria. To facilitate this, GeoScience Victoria’s Victorian Geological Carbon Storage project is providing a detailed geological assessment of the basin’s suitability for geological carbon storage. In this study, the top seal potential of the Lakes Entrance Formation in the Gippsland Basin has been evaluated to provide a basin-scale understanding of the region’s potential for CO2 containment. Thickness, distribution, facies and Mercury Injection Capillary Pressure data from the Lakes Entrance Formation suggest that the base of the unit within the Central Deep, western Northern Terrace and the onshore Lake Wellington Depression has excellent containment characteristics, with the capacity to withhold a vertical column of CO2 hundreds of metres high. The sealing potential of the Lakes Entrance Formation on the Southern Terrace and Southern Platform is very good. The formation is thick and seal capacity results from Groper-1 (246 m of CO2) indicate that the seal has the potential to contain significant column heights of CO2. The Seaspray Depression and Northern Terrace have good to moderate sealing potential. In these locations, the seal thickness and the depth to the base of the formation is variable. Seal capacity results are also variable but generally much lower than those recorded in the Central Deep. The offshore Northern Platform and the onshore Lakes Entrance Platform, Baragwanath Anticline and Alberton Depression offer very little containment potential for injected CO2. The results of the present study, when integrated with the results from other VicGCS investigations, will provide a basin-scale understanding of the Gippsland Basin’s CO2 geological storage potential. Download The downloadable version of this report is supplied in PDF format. Bibliographic reference Goldie Divko, L.M., O'Brien, G.W., Tingate, P.R. & Harrison, M.L., 2009. Geological carbon storage in the Gippsland Basin, Australia: Containment potential. VicGCS Report 1. Department of Primary Industries. Related products:
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