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The AAPG/Datapages Combined Publications Database

Southeast Asia Petroleum Exploration Society (SEAPEX)


Offshore South East Asia Conference, 1996
Pages 197-208

Petroleum Geology of the Petrel Sub-Basin, Northwestern Australia

Tun U. Maung


The Petrel Sub-basin is a Paleozoic rift off northwestern Australia. Some 45 wells have been drilled, and several oil and gas discoveries found, offshore and onshore, in Carboniferous and Permian reservoirs. All the petroleum discoveries are located around the NW-SE trending depocentre indicating that hydrocarbons may have migrated outwards from this area. The presence of oil and gas in the sub-basin confirm that not only are Paleozoic source rocks present but that petroleum generation and migration has occurred. The oil window extends from 1500 to 4000 m and is much thicker than those observed in many other sedimentary basins in Australia.

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