Northern Carnarvon Regional Geology

The Northern Carnarvon Basin, on Australia’s northwest margin, covers an area of approximately 535 000 km2, predominantly offshore, in water depths of up to 4500 m (Figure1). Two Mesozoic petroleum systems have been identified and numerous commercial oil and gas discoveries have been made within the basin. The basin is Australia’s premier hydrocarbon producing province and contains an established network of oil, condensate and gas production infrastructure (Figure 2). As of March 2017, the total oil and natural gas liquids and natural gas and ethane reserves (proved and probable) for the Carnarvon Basin are 893 MMbbls (141.98 Gl) and 55 218 PJ, respectively (EnergyQuest, 2017).