The contemporary challenges operators face in appraising the next tranche of Australian gas reservoirs for liquefied natural gas supply is presented. These reservoirs are typically characterised as ‘tight’, with encountered permeability < 1 mD, and were considered ‘stranded’ resources under legacy gas pricing arrangements. Case study data will be presented to demonstrate the inadequacies of traditional reservoir appraisal approaches. Instead, creative and innovative methods are required to understand the degree of intra and inter reservoir connectivity and structural/stratigraphic compartmentalisation. Operators must now accept increased development cost and risk, in order for these projects to be sanctioned for development. It is clear that the era of easy gas supply from Australian giant gas fields is over.

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