Petroleum systems modelling of the Adavale Basin 1D burial and thermal history modelling
<div>Lateral variation in maturity of potential Devonian source rocks in the Adavale Basin has been investigated using nine 1D burial, thermal and petroleum generation history models, constructed using existing open file data. These models provide an estimate of the hydrocarbon generation potential of the basin. Total organic carbon (TOC) content and pyrolysis data indicate that the Log Creek Formation, Bury Limestone and shale units of the Buckabie Formation have the most potential as source rocks. The Log Creek Formation and the Bury Limestone are the most likely targets for unconventional gas exploration.</div><div>The models were constructed using geological information from well completion reports to assign formation tops and stratigraphic ages, and then forward model the evolution of geophysical parameters. The rock parameters, including facies, temperature, organic geochemistry and petrology, were used to investigate source rock quality, maturity and kerogen type. Suitable boundary conditions were assigned for paleo-heat flow, paleo-surface temperature and paleo-water depth. The resulting models were calibrated using bottom hole temperature and measured vitrinite reflectance data.</div><div>The results correspond well with published heat flow predictions, although a few wells show possible localised heat effects that differ from the basin average. The models indicate that three major burial events contribute to the maturation of the Devonian source rocks, the first occurring from the Late Devonian to early Carboniferous during maximum deposition of the Adavale Basin, the second in the Late Triassic during maximum deposition of the Galilee Basin, and the third in the Late Cretaceous during maximum deposition of the Eromanga Basin. Generation in the southeastern area appears to have not been effected by the second and third burial events, with hydrocarbon generation only modelled during the Late Devonian to early Carboniferous event. This suggests that Galilee Basin deposition was not significant or was absent in this area. Any potential hydrocarbon accumulations could be trapped in Devonian sandstone, limestone and mudstone units, as well as overlying younger sediments of the Mesozoic Eromanga Basin. Migration of the expelled hydrocarbons may be restricted by overlying regional seals, such as the Wallumbilla Formation of the Eromanga Basin. Unconventional hydrocarbons are a likely target for exploration in the Adavale Basin, with potential for tight or shale gas from the Log Creek Formation and Bury Limestone in favourable areas.</div>
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Identification info
- Date (Creation)
- 2023-02-13T05:00:00
- Date (Publication)
- 2023-08-11T03:35:26
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/147706
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/147706
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Palu, T.
Internal Contact Author Korsch, R.
MEG Internal Contact Author Edwards, D.
Internal Contact Author Khider, K.
Internal Contact Author Boreham, C.
Internal Contact Author MacFarlane, S.
Internal Contact Author Bailey, A.
Internal Contact
- Name
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GA Record
- Issue identification
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GA Record 2023/11
- Purpose
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This work, conducted as part of Geoscience Australia’s Exploring for the Future (EFTF) initiative, contributes to the ‘Onshore Basin Inventories’ study, which aims to promote exploration and investment in selected underexplored onshore basins. Basin Inventory reports and petroleum systems modelling are being undertaken in select basins to understand the energy potential in underexplored regions, and to increase the impact of existing datasets.
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Resource provider Minerals, Energy and Groundwater Division
External Contact Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Palu, T.
Internal Contact
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- Topic category
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- Geoscientific information
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))
- Maintenance and update frequency
- As needed
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- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Project
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EFTF – Exploring for the Future
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- Project
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AFER
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- Project
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Onshore Basin Inventory
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- Project
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Onshore Energy Systems
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- Keywords
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burial history
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thermal history
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Adavale Basin
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1D model
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petroleum systems modelling
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- theme.ANZRC Fields of Research.rdf
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Resource geoscience
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Published_External
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Creative Commons Attribution 4.0 International Licence
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CC-BY
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4.0
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Role Organisation / Individual Name Details User Any
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© Commonwealth of Australia (Geoscience Australia) 2023
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Classification system
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Australian Government Security Classification System
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- Association Type
- Was informed by
- Title
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Understanding potential resource prospectivity 1D burial and thermal history modelling of the Adavale Basin
- Citation identifier
- 147424
- Citation identifier
- de9df6f8-816c-4139-8e54-be9f40209b0e
- Language
- English
- Character encoding
- UTF8
Distribution Information
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
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- OnLine resource
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Download the Record (pdf) [16.04 MB]
Download the Record (pdf) [16.04 MB]
- Distribution format
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pdf
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Resource lineage
- Statement
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<div>1D models correct at time of publication. New data and information may change these results.</div>
Metadata constraints
- Title
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Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
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urn:uuid/8d245d49-c277-4bf9-9faa-4f6720332f22
- Title
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GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Palu, T.
Internal Contact
Type of resource
- Resource scope
- Document
- Name
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GA Record
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/147706
- Date info (Creation)
- 2023-08-11T03:18:13
- Date info (Revision)
- 2023-08-11T03:18:13
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- http://pid.geoscience.gov.au/dataset/ga/122551