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Gravity modelling and monitoring of Geological Carbon Sequestration (GCS) in the Shipwreck Trough, Otway Basin

Created 09/01/2026

Updated 03/03/2026

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As part of the Resourcing Australia Prosperity initiative (RAPi), Geoscience Australia is undertaking the assessment of Geological Carbon Sequestration (GCS) in parts of Australia. Work has started with basin modelling of the Shipwreck Trough in the Otway Basin. This modelling work will help define and quantify the best targets for GCS in the area. If formations are identified for sequestration, they will need monitoring to ensure that there is no leakage of CO2.

 

Expected changes in fluid density makes time-lapse gravimetry a potentially useful method for monitoring storage. It is possible to model how changes in density, due to CO2 injection, may affect gravity response over time. Changes in gravity response can be used to map the saturation of CO2 to show plume migration.

 

While this method has been used in other environments, we investigate the feasibility and challenges of applying it to Carbon Capture and Storage within the Waarre Formation in the Shipwreck Trough.

Abstract prepared for the Australasian Exploration Geoscience Conference AEGC2025.

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Additional Info

Field Value
Title Gravity modelling and monitoring of Geological Carbon Sequestration (GCS) in the Shipwreck Trough, Otway Basin
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/453639bc-cbc7-4cb5-88dd-5e1b5df27e16
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 09/02/2026
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        145.0,
        -40.2
      ],
      [
        142.0,
        -40.2
      ],
      [
        142.0,
        -37.0
      ],
      [
        145.0,
        -37.0
      ],
      [
        145.0,
        -40.2
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Gravity modelling and monitoring of Geological Carbon Sequestration (GCS) in the Shipwreck Trough, Otway Basin". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/gravity-modelling-and-monitoring-of-geological-carbon-sequestration-gcs-in-the-shipwreck-trough