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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>

Simple

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
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

GA Record

Issue identification

GA Record 2023/11

Purpose

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
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
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
As needed

Resource format

Title

Product data repository: Various Formats

Website

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
  • EFTF – Exploring for the Future

Project
  • AFER

Project
  • Onshore Basin Inventory

Project
  • Onshore Energy Systems

Keywords
  • burial history

Keywords
  • thermal history

Keywords
  • Adavale Basin

Keywords
  • 1D model

Keywords
  • petroleum systems modelling

theme.ANZRC Fields of Research.rdf
  • Resource geoscience

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

https://creativecommons.org/licenses/by/4.0/

Addressee
Role Organisation / Individual Name Details
User

Any

Use constraints
License
Use constraints
Other restrictions
Other constraints

© Commonwealth of Australia (Geoscience Australia) 2023

Resource constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Classification system

Australian Government Security Classification System

Associated resource

Association Type
Was informed by
Title

Understanding potential resource prospectivity 1D burial and thermal history modelling of the Adavale Basin

Citation identifier
147424

Citation identifier
de9df6f8-816c-4139-8e54-be9f40209b0e

Website

http://pid.geoscience.gov.au/dataset/ga/147424

Link to eCat metadata record landing page

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice facsimile
OnLine resource

Download the Record (pdf) [16.04 MB]

Download the Record (pdf) [16.04 MB]

Distribution format
  • pdf

Resource lineage

Statement

<div>1D models correct at time of publication. New data and information may change these results.</div>

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/8d245d49-c277-4bf9-9faa-4f6720332f22

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
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

GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/147706

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/8d245d49-c277-4bf9-9faa-4f6720332f22

Date info (Creation)
2023-08-11T03:18:13
Date info (Revision)
2023-08-11T03:18:13

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
http://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

AFER EFTF – Exploring for the Future Onshore Basin Inventory Onshore Energy Systems
theme.ANZRC Fields of Research.rdf
Resource geoscience

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