CO2 Storage Assessment for the Vlaming Sub-basin, Offshore Western Australia

Geoscience Australia's assessment for the National CO2 Infrastructure Plan focuses on the Vlaming Sub-basin in the offshore South Perth Basin. The study integrates seismic, well, and marine datasets to evaluate the Gage Sandstone reservoir and South Perth Shale seal. It estimates a storage capacity of up to 1 gigatonne of CO2 in a reservoir unit covering over 1,500 km².

Use Cases

• Model CO2 plume migration based on described reservoir properties like depth (1400-2000 m) and thickness (100-300 m).
• Assess seal integrity risks for long-term storage based on the analysis of the overlying South Perth Shale.
• Estimate regional carbon storage capacity using the integrated interpretation of seismic and well data.
• Plan injection strategies for supercritical CO2 based on the reservoir's depth and lateral extent.

Strengths

• Includes interpretation of integrated datasets (seismic, well, marine), both existing and newly acquired.
• Focuses on a laterally extensive reservoir unit covering over 1,500 km² with an estimated storage capacity of up to 1 gigatonne of CO2.
• Provides detailed analysis of specific geological features: the Gage Sandstone reservoir and the South Perth Shale regional seal.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing solely on one Australian basin.

Provenance

Source

Geoscience Australia, as part of the Australian Government National CO2 Infrastructure Plan (NCIP).

Collection Method

Interpretation and integration of seismic, well, and marine datasets.

Freshness

Last updated 2026-06-27 20:39:48.423634; freshness should be verified.

Geography

Vlaming Sub-basin, offshore Western Australia in the southern Perth Basin.