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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.


https://doi.org/10.1071/AJ21076

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
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

The APPEA Journal

Issue identification

62 (1) 2022

Page

381-399

Purpose

Article submitted to The APPEA Journal 2022

Status
Completed
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

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

  • GEOPHYSICS

Place
  • Officer Basin

Stratum
  • Neoproterozoic

Stratum
  • Cambrian

Theme
  • laboratory measurement

Process
  • log interpretation

Feature type
  • porosity

Feature type
  • permeability

Theme
  • characterisation

Discipline
  • neural network

Feature type
  • reservoir

Feature type
  • seal

Theme
  • Exploring for the Future

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

© 2022 The Author(s) (or their employer(s))

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

Link to Journal

Link to Journal

Distribution format

Resource lineage

Statement

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
Website

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

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/29c556cc-5b3e-4add-a601-f66b64cb9e45

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

Journal Articles and Conference Papers

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/146053

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/29c556cc-5b3e-4add-a601-f66b64cb9e45

Date info (Creation)
2021-10-28T22:52:57
Date info (Revision)
2021-10-28T22:52:57

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

Cambrian Exploring for the Future Neoproterozoic characterisation laboratory measurement log interpretation neural network permeability porosity reservoir seal
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES GEOPHYSICS

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