Gage Sandstone CO2 Storage Potential in the Vlaming Sub-basin, Offshore Western Australia

Geoscience Australia Data produced a 2026 study assessing the CO2 storage potential of the Early Cretaceous Gage Sandstone in the Vlaming Sub-basin. The analysis integrates 2D seismic interpretation, well log data from 8 wells, and biostratigraphic review to characterize the submarine fan reservoir system. The Gage Sandstone reservoir has porosities of 23-30%, permeabilities of 200-1800 mD, and lies at depths suitable for supercritical CO2 injection.

Use Cases

• Model CO2 storage capacity based on described reservoir properties like porosity (23-30%) and permeability (200-1800 mD)
• Analyze submarine fan system evolution based on paleogeographic reconstructions and sediment transport directions described
• Assess reservoir-seal pair suitability for carbon capture based on the Gage Sandstone and overlying South Perth Shale formation
• Interpret seismic facies and sequence stratigraphy for the Gage Lowstand Systems Tract as detailed in the methodology

Strengths

• Specific reservoir property ranges provided: porosity 23-30% and permeability 200-1800 mD
• Analysis integrates multiple data types: 2D seismic, well logs from 8 wells, and biostratigraphic data
• Clear geographic and depth context: Vlaming Sub-basin (23,000 km²), reservoir at 1000-3000 m below seafloor

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 the single case study area

Provenance

Source

Geoscience Australia Data

Collection Method

Case study based on seismic facies mapping, well log interpretation, and biostratigraphic review

Time Range

Early Cretaceous geological period

Freshness

Last updated 2026-04-20 01:15:36.138265; freshness should be verified

Geography

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