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The Northwest Offshore Otway Basin Well Folio

Created 16/10/2025

Updated 16/10/2025

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The Otway Basin is a northwest-southeast trending rift basin which spans from onshore Victoria and South Australia into the deep-water offshore. The prospective supersequences within the basin are largely of Cretaceous age which host three possible petroleum systems (Austral 1, 2 and 3). While there is production from onshore depocentres, and the inboard Shipwreck Trough, the majority of the offshore basin remains underexplored. Recent regional studies have highlighted the need for further work across the underexplored parts of the basin and here we focus on the offshore northwest Otway Basin, integrating reinterpreted historical well data, newly acquired and recently reprocessed seismic data. This new Well Folio consists of composite logs and supporting data which includes interpreted lithologies, petrophysical analyses, the analysis of historic organic geochemistry and organic petrology. In addition, updated well markers are provided based on seismic interpretation and new biostratigraphy in key wells. This integrated study provides the basis for renewed prospectivity assessment in the northwest offshore portion of the Otway Basin.

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Additional Info

Field Value
Title The Northwest Offshore Otway Basin Well Folio
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/9b73906f-04c2-47f7-b522-bef262ec925e
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 29/03/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        137.0,
        -41.0
      ],
      [
        145.0,
        -41.0
      ],
      [
        145.0,
        -36.0
      ],
      [
        137.0,
        -36.0
      ],
      [
        137.0,
        -41.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The Northwest Offshore Otway Basin Well Folio". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-northwest-offshore-otway-basin-well-folio