Product catalogue
Wireline log data analysis in NDI Carrara 1, Northern Territory
As part of Geoscience Australia’s Exploring for the Future program, this study aims to analyse the hydrocarbon prospectivity in the Carrra Sub-basin through wireline log interpretation and shale gas reservoir characterisation. NDI Carrara 1 is the first stratigraphic test of the Carrara Sub-basin, a recently uncovered depocentre located within the South Nicholson region of the eastern Northern Territory and northwestern Queensland. Four chemostratigraphic packages were defined according to the informal sub-division of stratigraphy and inorganic geochemical properties. Wireline log interpretation has been conducted to derive the clay mineral compositions, porosity, gas saturation and gas contents for the unconventional shale gas reservoirs in the Proterozoic succession in NDI Carrara 1.
The predominant clay minerals include illite/muscovite, mixed-layer clay, smectite, kaolinite, and minor contents of glauconite and chlorite. The average geothermal gradient is estimated to be 35.04 °C/km with a surface temperature of 29.4 °C. The average formation pressure gradient is calculated to be < 10.7 MPa/km from mud weight records. Artificial neural network technology is used to interpret the TOC content from wireline logs for unconventional shale gas reservoirs. TOC content is positively correlated with methane and ethane concentrations in mudlog gas profiles, shale porosity, formation resistivity and gas content for NDI Carrara 1.
The organic-rich shales in P2 have favourable adsorbed, free and total gas contents. The organic-rich micrites within P3 have the potential in adsorbed gas, but with very low average gas saturation (< 0.01 m3/m3). Our interpretation has identified potential shale gas reservoirs, as well as tight non-organic-rich shales and siltstones with potential as gas reservoirs. These occur throughout several of the identified chemostratigraphic packages within the Proterozoic section of NDI Carrara 1.
Simple
Identification info
- Date (Creation)
- 2023-04-19
- Date (Publication)
- 2023-06-19T23:45:02
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/147880
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/147880
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Wang, L.
MEG Internal Contact Author Bailey, A.
MEG Internal Contact Author Grosjean, E.
MEG Internal Contact Author Carson, C.
MEG Internal Contact Author Carr, L.
MEG Internal Contact Author Butcher, G.
MEG Internal Contact Author Boreham, C.
MEG Internal Contact Author Henson, P.
MEG Internal Contact
- Name
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Record
- Issue identification
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2023/026
- Purpose
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As part of Exploring for the Future program in Geoscience Australia, this work aims to analyse the hydrocarbon potential in the Carrara Sub-basin, South Nicolson region, through wireline log data interpretation and shale gas reservoir gas characterisation in the Proterozoic succession in NDI Carrara 1. The research results have been merged into a pdf document.
- Status
- On going
- 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
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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- Project
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Exploring for the Future
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- Project
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NDI Carrara 1
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- Discipline
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Petrophysics
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- Feature type
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wireline log
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- Discipline
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Chemostratigraphy
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- Feature type
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Total organic carbon content
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- Feature type
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Porosity
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- Feature type
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Gas content
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- Discipline
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Reservoir characterisation
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- Place
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Carrara Sub-basin
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- Project
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MinEx Cooperative Research Centre (CRC)
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- Place
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South Nicholson Region
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- Project
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Barkly-Isa-Georgetown project
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
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4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
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(c) Commonwealth of Australia (Geoscience Australia) 2023
Resource constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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Download Report (pdf) [24.4 MB]
Download Report (pdf) [24.4 MB]
- Distribution format
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pdf
- File decompression technique
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nil
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Resource lineage
- Statement
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This work is part of Exploring for the Future program in Geoscience Australia, which aims to analyse the hydrocarbon prospectivity in the Carrara Sub-basin through wireline log interpretation and shale gas reservoir characterisation. The wireline logging data were acquired and released by MinEx CRC and Geoscience Australia Portal. Petrophysical interpretation and reservoir characterisation results have been merged into a pdf document.
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/1fe041d3-0db8-4528-b0ae-f50b67bd4a50
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
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
Type of resource
- Resource scope
- Document
- Name
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GA Record
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/147880
- Date info (Creation)
- 2019-04-08T01:55:29
- Date info (Revision)
- 2019-04-08T01:55:29
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