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

Up to 1 gigatonne of CO2 storage capacity is estimated for the Gage Sandstone reservoir in the Vlaming Sub-basin. Geoscience Australia produced this assessment by interpreting and integrating seismic, well, and marine datasets to evaluate reservoir properties and seal integrity risks. The study, part of the National CO2 Infrastructure Plan, focuses on a laterally extensive reservoir over 1,500 km² at depths suitable for supercritical CO2 injection.

Use Cases

• Model CO2 plume migration based on described reservoir geometry and properties
• Assess long-term storage security based on the analysis of regional seal integrity
• Plan injection well placement using the interpreted seismic and well data
• Estimate regional storage potential based on the 1 GT capacity figure for the Gage Sandstone

Strengths

• Focuses on a reservoir unit with a defined potential capacity of up to 1 gigatonne of CO2
• Integrates multiple data types including seismic, well, and marine datasets
• Describes specific, quantifiable reservoir characteristics: over 1,500 km² in area and 100-300 m thick

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data freshness should be verified despite the listed 2026 update date

Provenance

Source

Geoscience Australia Data

Collection Method

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

Time Range

Assessment is contemporary, but underlying geological data likely spans the Mesozoic era to present.

Freshness

Last updated 2026-04-20 01:24:15.800429

Geography

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