Two coal-bearing sedimentary sequences in the onshore Gippsland Basin and one in South Gippsland are prospective for natural gas. The Early Cretaceous Strzelecki Group across the Gippsland region is a potential CSG target, as is the overlying Latrobe Group in the onshore Gippsland Basin .
In 2004 Karoon Gas carried out the only gas test to date on the black coals of the Strzelecki Group in the Gippsland Basin bioregion. In the exploration well Megascolides-1, Karoon Gas intersected coal seams that were thin and sparse with a single gas content of 3.37 m3/t recorded . The subsurface geology of the area is largely unknown with very limited data collected to date .
Brown coaIs within the Traralgon Formation of the Latrobe Group are extensive and attain great thicknesses, with some individual seams aggregating up to 150 m . Although there has been some preliminary exploration targeting these seams (e.g. Gastar Exploration Ltd, 2005), and an estimate of 3.7 trillion cubic feet (TCF) of gas , no gas content or permeability measurements have been collected from the lignite seams of the Traralgon Formation . Hence, there is significant geological uncertainty associated with the prospectivity of the region for CSG.
Product Finalisation date
- 1.2.1 Available coal and coal seam gas resources
- 1.2.2 Current activity and tenements
- 1.2.3 Proposals and exploration
- 1.2.4 Catalogue of potential resource developments
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- Contributors to the Technical Programme
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