Offshore CO2 Storage Assessment for the South Perth Basin

Geoscience Australia assessed the Vlaming Sub-basin for CO2 storage, estimating a capacity of up to 1 gigatonne in the Gage Sandstone reservoir. The study integrates seismic, well, and marine datasets to model storage potential and seal integrity risks. This work, part of the National CO2 Infrastructure Plan, was published by the Australian Ocean Data Network.

Use Cases

• Model CO2 plume migration using reservoir properties like Gage Sandstone thickness (100-300 m) and depth (1400-2000 m).
• Assess seal integrity risks by analyzing properties of the overlying South Perth Shale regional seal.
• Estimate total storage capacity by integrating seismic interpretation data with the estimated 1 GT capacity of the Gage Sandstone.
• Map the lateral extent of the reservoir unit across its reported area of over 1,500 square kilometers.

Strengths

• Estimates a specific storage capacity of up to 1 gigatonne of CO2.
• Integrates multiple data types including seismic, well, and marine datasets.
• Focuses on a laterally extensive reservoir unit covering over 1,500 square kilometers.

Limitations

• Specific row counts, column details, and sample data are unavailable.
• The assessment is geographically focused on a single sub-basin (Vlaming Sub-basin).
• Underlying raw data files and their formats may not be directly accessible.

Provenance

Source

Geoscience Australia, Australian Ocean Data Network.

Collection Method

Interpretation and integration of existing and newly acquired seismic, well, and marine datasets.

Time Range

null

Freshness

Last updated in April 2026.

Geography

Vlaming Sub-basin, offshore South Perth Basin, Western Australia.