Sedimentary history, diagenesis and organic facies of the Triassic Mungaroo Formation, Barrow Sub-basin, W.A.
Date
1996
Authors
Jong, John Tiang-shen
Editors
Advisors
Lemon, Nicholas M.
McKirdy, David Malcolm
McKirdy, David Malcolm
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Theses
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Abstract
The Triassic, largely regressive fluvio-deltaic Mungaroo Formation was studied in the vicinity of the Barrow Sub-basin within the North West Shelf. Western Australia. The Barrow Sub-basin is a Jurassic to Cretaceous rift and downwarp underlain by a more extensive, sheet-like Triassic sequence. Cretaceous reservoirs provide the most interest in the region in terms of oil production but Triassic sandstones of the Mungaroo Formation form the major economic and potentially economic reservoirs along the relatively up-faulted western margin of the sub-basin with some similar potential along the eastern and southern margins. The centre of the sub-basin contains up to 10,000 m of post-Triassic fill thereby preventing drill intersection of the Mungaroo Formation in that area. This study aims to add to the knowledge of the Mungaroo Formation by looking in detail at the sandstone petrography, diagenesis and organic petrography of the unit. These studies are supported by a range of techniques including core logging, transmitted and reflected light microscopy, scanning electron microscopy, microprobe and isotopic analyses and source rock geochemistry. The Mungaroo Formation is investigated as both a source and reservoir.
School/Discipline
Australian School of Petroleum
Dissertation Note
Thesis (M.Sc.) -- University of Adelaide, National Centre for Petroleum Geology and Geophysics (NCPGG), 1997
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