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The potential for CO2 storage in residual oil zones in onshore Australian basins

<div>We have investigated whether water-saturated residual oil zones (ROZs), sometimes associated with conventional Australian hydrocarbon plays, could provide a CO2 storage resource and supplement depleted field storage.


Our petrophysical study demonstrates that ROZs occur in Australia’s hydrocarbon-rich regions, particularly in the Cooper-Eromanga Basin. ROZs with more than 10% residual oil saturation are uncommon, likely due to small original oil columns and lower residual saturations retained in sandstone reservoirs than in classic, carbonate-hosted North American ROZs. Extensive, reservoir-quality rock is found below the deepest occurring conventional oil in many of the fields in the Eromanga Basin, potentially offering significant CO2 storage capacity.


Multiphase compositional flow modelling was used to estimate the CO2 storage efficiency of typical Australian ROZs. We developed a novel modelling methodology that first captures oil migration events leading to the formation of ROZs. Modelling CO2 storage over a 20-year injection period demonstrates that CO2-oil interactions increase the density and viscosity of CO2, enhancing CO2 sweep efficiency and lateral flow, improving storage efficiency. The extent of these effects depends on the quantity and spatial distribution of residual oil in place and the miscibility of CO2 at reservoir conditions.


Presented at the Australian Energy Producers (AEP) Conference & Exhibition

( https://energyproducersconference.au/conference/)

Simple

Identification info

Date (Creation)
2024-02-04T07:00:00
Date (Publication)
2024-06-18T06:03:19
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149205

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

Voice
Author

Kalinowski, A.

Internal Contact
Author

Tenthorey, E.

Internal Contact
Author

Clennell, M.B.

External Contact
Author

Seyyedi, M.

External Contact
Author

Kempton, R.

External Contact
Author

Jackson, S.

External Contact
Author

Patterson, C.

Internal Contact
Author

Perera, S.

External Contact
Name

Australian Energy Producers (AEP) Conference & Exhibition 20-23 May 2024, Perth WA

Purpose

Extended abstract for the Australian Energy Producers (formerly APPEA) conference and journal, 2024.

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

Kalinowski, A.

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
  • Residual oil zone

Project
  • Australia's future energy resources

Project
  • CO2 storage

Keywords
  • CO2 storage

Keywords
  • residual oil zone

Keywords
  • Cooper Basin

Keywords
  • Eromanga Basin

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) 2024

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
Larger work citation
Title

CO2 EOR-Storage Methodology for Residual Oil Zones

Citation identifier
145932

Citation identifier
82db9c63-47d2-46eb-95ed-e835e1fae5dd

Website

http://pid.geoscience.gov.au/dataset/ga/145932

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

Link to Paper

Link to Paper

Distribution format
OnLine resource

Link to Oral Presentation (Session 27)

Link to Oral Presentation (Session 27)

Distribution format

Resource lineage

Statement

<div>The abstract was put forward to the <em>The Australian Energy Producers Conference and Journal</em> (2024) in September 2023 and accepted for oral presentation and extended abstract publication in October 2023. The paper reference for the journal is AJ23104.</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/1a6bfb90-9601-4686-9f10-ecc3ed344e15

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

Kalinowski, A.

Internal Contact

Type of resource

Resource scope
Document
Name

Journal Article / Conference Paper

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/149205

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/1a6bfb90-9601-4686-9f10-ecc3ed344e15

Date info (Creation)
2024-06-17T07:02:38
Date info (Revision)
2024-06-17T07:02:38

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

Australia's future energy resources CO2 storage EFTF – Exploring for the Future Residual oil zone
theme.ANZRC Fields of Research.rdf
Resource geoscience

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