South Perth Shale Supersequence Palaeogeographic Maps for CO2 Storage Assessment

A 2011 Geoscience Australia project assessed the Vlaming Sub-basin for CO2 storage, focusing on the South Perth Shale (SPS) formation. The SPS is a 1900-meter-thick deltaic succession with variable lithologies and sealing capacity. Analysis mapped mudstone facies distribution to characterize the containment potential for CO2 storage.

Use Cases

• Model CO2 column height containment based on the estimated 663-meter capacity from MICP tests.
• Map spatial variability of seal effectiveness across the basin based on the sequence-stratigraphic approach described.
• Assess reservoir-seal pair suitability for long-term storage based on the identified Gage Sandstone and South Perth Shale formations.
• Characterize mudstone facies distribution and thickness as the effective sub-regional seal.

Strengths

• Based on a three-year project initiated in 2011 as part of the National CO2 Infrastructure Plan.
• Includes specific geological measurements, such as a 1900-meter thickness for the South Perth Shale formation.
• Applies a sequence-stratigraphic approach to map facies distribution across the 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 Vlaming Sub-basin study area.

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

Project work involving sequence-stratigraphic mapping and analysis of pre-competitive data.

Time Range

Project started in 2011; study references work from 2006.

Freshness

Last updated 2026-04-10 21:53:14.433835; freshness should be verified.

Geography

Vlaming Sub-basin within the Perth Basin, Western Australia.