Petrophysical characterisation of the Neoproterozoic and Cambrian successions in the Officer Basin
The Neoproterozoic–Paleozoic Officer Basin, located in South Australia and Western Australia, remains a frontier basin for energy exploration with significant uncertainty due to a paucity of data. As part of Geoscience Australia’s Exploring for the Future (EFTF) program, the objective of this study is to derive the petrophysical properties and characterise potential reservoirs in the Neoproterozoic–Cambrian sedimentary succession in the Officer Basin through laboratory testing, and well log interpretation using both conventional and neural network methods.
Laboratory measurements of forty-one legacy core samples provide the relationships between gas permeability, Klinkenberg corrected permeability, and nano-scale permeability, as well as grain density, effective and total porosity for various rock types. Conventional log interpretation generates the volume fraction of shale, effective and total porosity from gamma ray and lithology logs. Self-organising map (SOM) was used to cluster the well log data to generate petrophysical group/class index and probability profiles for different classes. Neural network technology was employed to approximate porosity and permeability from logs, conventional interpretation results and class index from SOM modelling.
The Neoproterozoic-Cambrian successions have the potential to host both conventional and tight hydrocarbon reservoirs. Neoproterozoic successions are demonstrated to host mainly tight reservoirs with the range in average porosity and geometric mean permeability of 4.77%-6.39% and 0.00087-0.01307 mD, respectively, in the different sequences. The range in average porosity and geometric mean permeability of the potential Cambrian conventional reservoirs is 14.54%-26.38% and 0.341-103.68 mD, respectively. The Neoproterozoic shales have favourable sealing capacities. This work updates the knowledge of rock properties to further the evaluation of the resource potential of the Officer Basin.
Published in The APPEA Journal 2022
<b>Citation:</b>
Wang Liuqi, Bailey Adam H. E., Carr Lidena K., Edwards Dianne S., Khider Kamal, Anderson Jade, Boreham Christopher J., Southby Chris, Dewhurst David N., Esteban Lionel, Munday Stuart, Henson Paul A. (2022) Petrophysical characterisation of the Neoproterozoic and Cambrian successions in the Officer Basin. <i>The APPEA Journal</i><b> 62</b>, 381-399.
Simple
Identification info
- Date (Creation)
- 2021-12-10
- Date (Publication)
- 2023-06-22T04:51:49
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/146053
- Cited responsible party
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Role Organisation / Individual Name Details Author Wang, L.
MEG Internal Contact Author Bailey, A.
MEG Internal Contact Author Carr, L.
MEG Internal Contact Author Edwards, D.
MEG Internal Contact Author Khider, K.
MEG Internal Contact Author Anderson, J.
MEG Internal Contact Author Boreham, C.
MEG Internal Contact Author Southby, C.
MEG Internal Contact Author Dewhurst, D.
External Contact Author Esteban, L.
External Contact Author Munday, S.
Chemostrat Australia Pty. Ltd. External Contact Author Henson, P.
MEG Internal Contact Publisher CSIRO
External Contact
- Name
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The APPEA Journal
- Issue identification
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62 (1) 2022
- Page
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381-399
- Purpose
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Article submitted to The APPEA Journal 2022
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Wang, L.
MEG Internal Contact Resource provider Minerals, Energy and Groundwater Division
External Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- 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
- theme.ANZRC Fields of Research.rdf
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EARTH SCIENCES
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GEOPHYSICS
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- Place
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Officer Basin
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- Stratum
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Neoproterozoic
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- Stratum
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Cambrian
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- Theme
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laboratory measurement
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- Process
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log interpretation
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- Feature type
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porosity
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- Feature type
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permeability
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- Theme
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characterisation
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- Discipline
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neural network
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- Feature type
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reservoir
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- Feature type
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seal
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- Theme
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Exploring for the Future
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- Keywords
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Published_External
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- Title
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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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© 2022 The Author(s) (or their employer(s))
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Australian Government Security Classification System
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- 2018-11-01T00:00:00
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- Unclassified
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- English
- Character encoding
- UTF8
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
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- Statement
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As part of GA's Exploring for the Future program, this work aims to derive petrophyscial properties from wireline logs. The research results have been put onto an APPEA paper (2022).
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
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urn:uuid/29c556cc-5b3e-4add-a601-f66b64cb9e45
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GeoNetwork UUID
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- English
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Owner Wang, L
Internal Contact Point of contact Wang, L.
MEG Internal Contact
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- Document
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Journal Articles and Conference Papers
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/146053
- Date info (Creation)
- 2021-10-28T22:52:57
- Date info (Revision)
- 2021-10-28T22:52:57
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
- https://pid.geoscience.gov.au/dataset/ga/122551