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Palaeogeographic maps for South Perth Shale Supersequence in the Vlaming Sub-basin (Perth Basin) with the implications for its sealing potential

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Created 20/01/2025

Updated 20/01/2025

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In 2011 as part of the National CO2 Infrastructure Plan (NCIP), Geoscience Australia started a three year project to provide new pre-competitive data and a more detailed assessment of the Vlaming Sub-basin prospectivity for the storage of CO2. Initial assessment by Causebrook 2006 of this basin identified Gage Sandstone and South Perth Shale (SPS) formations as the main reservoir/seal pair suitable for long-term storage of CO2. SPS is a thick (1900 m) deltaic succession with highly variable lithologies. It was estimated that the SPS is capable of holding a column of CO2 of up to 663m based on 6 MICP tests (Causebrook, 2006). The current study found that sealing capacity of the SPS varies considerably across the basin depending on what part of the SPS Supersequence is present at that location. Applying a sequence-stratigraphic approach, the distribution of mudstone facies within the SPS Supersequence, was mapped across the basin. This facies is the effective sub-regional seal of the SPS. Analysis of the spatial distribution and thickness of the effective seal is used for characterisation of the containment potential in the Vlaming Sub-basin CO2 storage assessment.

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Title Palaeogeographic maps for South Perth Shale Supersequence in the Vlaming Sub-basin (Perth Basin) with the implications for its sealing potential
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/fc4cdcb4-6bb3-4d58-b22d-4b606ce21b17
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage http://www.ga.gov.au/place-names/PlaceDetails.jsp?submit1=GA1
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Palaeogeographic maps for South Perth Shale Supersequence in the Vlaming Sub-basin (Perth Basin) with the implications for its sealing potential". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/palaeogeographic-maps-for-south-perth-shale-supersequence-in-the-vlaming-sub-basin-perth-basin-1