Gage Sandstone CO2 Storage Potential in the Vlaming Sub-basin

A geological case study assesses the CO2 storage suitability of the Early Cretaceous Gage Sandstone in Australia's offshore Vlaming Sub-basin. The analysis integrates 2D seismic interpretation, well log data from 8 wells, and biostratigraphic review to characterize the reservoir. The Gage Sandstone is a sand-rich submarine fan system with porosities of 23-30% and permeabilities of 200-1800 mD, lying 1000-3000 meters below the seafloor.

Use Cases

• Model CO2 storage capacity based on reservoir porosity and permeability ranges
• Map paleogeographic sediment transport directions based on seismic facies interpretations
• Assess reservoir-seal pair integrity for long-term storage based on the South Perth Shale regional seal
• Characterize submarine fan architecture based on mapped channelized turbidites and debris flows

Strengths

• Reservoir properties are quantified with specific porosity (23-30%) and permeability (200-1800 mD) ranges
• Analysis integrates multiple data types: 2D seismic, well logs from 8 wells, and biostratigraphic data
• Spatial extent of the study area is defined as approximately 23,000 km2 in the Vlaming Sub-basin

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 specific offshore basin study area

Provenance

Source

Australian Ocean Data Network

Collection Method

Sequence stratigraphic analysis integrating 2D seismic interpretation, well log analysis, and biostratigraphic data.

Time Range

Early Cretaceous (Valanginian)

Freshness

Last updated 2026-06-16 17:35:19.433273; freshness should be verified

Geography

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