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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
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

Record

Issue identification

2023/026

Purpose

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
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

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

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES

Project
  • Exploring for the Future

Project
  • NDI Carrara 1

Discipline
  • Petrophysics

Feature type
  • wireline log

Discipline
  • Chemostratigraphy

Feature type
  • Total organic carbon content

Feature type
  • Porosity

Feature type
  • Gas content

Discipline
  • Reservoir characterisation

Place
  • Carrara Sub-basin

Project
  • MinEx Cooperative Research Centre (CRC)

Place
  • South Nicholson Region

Project
  • Barkly-Isa-Georgetown project

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License
Other constraints

(c) 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
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 Report (pdf) [24.4 MB]

Download Report (pdf) [24.4 MB]

Distribution format
  • pdf

    File decompression technique

    nil

Resource lineage

Statement

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
Website

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

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

GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/147880

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/5167d912-6784-4371-9938-3931e84ca6f1

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/1fe041d3-0db8-4528-b0ae-f50b67bd4a50

Metadata linkage

https://ecat.ga.gov.au/geonetwork/static/eng/catalog.search#/metadata/1fe041d3-0db8-4528-b0ae-f50b67bd4a50

Metadata linkage

https://ecat.ga.gov.au/geonetwork/dashboard/eng/catalog.search#/metadata/1fe041d3-0db8-4528-b0ae-f50b67bd4a50

Date info (Creation)
2019-04-08T01:55:29
Date info (Revision)
2019-04-08T01:55:29

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
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

Barkly-Isa-Georgetown project Chemostratigraphy Exploring for the Future Gas content MinEx Cooperative Research Centre (CRC) NDI Carrara 1 Petrophysics Porosity Reservoir characterisation Total organic carbon content wireline log
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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