Data

Modelling CO2 EOR-storage in Residual Oil Zones

Name: Modelling CO2 EOR-storage in Residual Oil Zones
Published: 2024

Geoscience Australia

Jackson, S.J. ; Seyyedi, M. ; Dance, T. ; Clennell, M.B. ; Tenthorey, E. ; Kalinowski, A.

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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/149366&rft.title=Modelling CO2 EOR-storage in Residual Oil Zones&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/149366&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=Geoscience Australia and CSIRO have collaborated, under the Exploring for the Future program, to investigate whether water-saturated residual oil zones (ROZs), sometimes associated with conventional Australian hydrocarbon plays, could provide a CO2 storage resource and enhance the storage capacity of depleted fields. This product is part of a larger project that includes, among others, a petrophysical study to identify and characterise ROZs. In this report, we model the formation of a residual oil zone in an Australian setting and the subsequent injection of CO2 using a 5 spot well pattern. The reservoir is built as an archetype example of the Hutton Formation from the Cooper-Eromanga basin. The reservoir interval is populated with permeable sandstone” and “impermeable baffle” facies and a sealing layer at the top of the model is created and assigned properties such that it can be made to leak oil by capillary failure, as part of the process used to create a residual oil column. The static model is them imported into CMG-GEM software for the reservoir flow simulations. We find the scenario, with injectors perforated at the top and a central producing well perforated at the bottom, able to both store the most CO2 and produce the most oil. The storage and sweep efficiencies are high, highlighting the difference with typical CO2 storage scenarios without pressure mitigation.For more information about this project and to access the related studies and products, see: https://www.eftf.ga.gov.au/carbon-co2-storage-residual-oil-zones. Data is available on request from clientservices@ga.gov.au - Quote eCat# 149366Maintenance and Update Frequency: asNeededStatement: This product is a key output from the Residual Oil Zone CO2 storage study under the EFTF program (2020-2024), completed under contract number 006410 between GA and CSIRO. It follows a preliminary methodology report (eCat 145932) and is associated with a petrophysical study (eCat 149323) as well as associated datasets (to be linked).&rft.creator=Jackson, S.J. &rft.creator=Seyyedi, M. &rft.creator=Dance, T. &rft.creator=Clennell, M.B. &rft.creator=Tenthorey, E. &rft.creator=Kalinowski, A. &rft.date=2024&rft.coverage=westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00&rft.coverage=westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=Any&rft_rights=Any&rft_rights=© Commonwealth Scientific and Industrial Research Organisation 2024&rft_rights=Australian Government Security Classification System&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security Classification System&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=EFTF – Exploring for the Future&rft_subject=CO2 storage in residual oil zones&rft_subject=Carbon Capture and Storage&rft_subject=residual oil zone&rft_subject=reservoir model&rft_subject=CMG&rft_subject=Resource geoscience&rft_subject=EOR - Enhanced Oil Recovery&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data

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Creative Commons Attribution 4.0 International Licence
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Creative Commons Attribution 4.0 International Licence

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4.0

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Brief description

Geoscience Australia and CSIRO have collaborated, under the Exploring for the Future program, to investigate whether water-saturated residual oil zones (ROZs), sometimes associated with conventional Australian hydrocarbon plays, could provide a CO2 storage resource and enhance the storage capacity of depleted fields. This product is part of a larger project that includes, among others, a petrophysical study to identify and characterise ROZs.

In this report, we model the formation of a residual oil zone in an Australian setting and the subsequent injection of CO2 using a 5 spot well pattern. The reservoir is built as an archetype example of the Hutton Formation from the Cooper-Eromanga basin. The reservoir interval is populated with "permeable sandstone” and “impermeable baffle” facies and a sealing layer at the top of the model is created and assigned properties such that it can be made to leak oil by capillary failure, as part of the process used to create a residual oil column. The static model is them imported into CMG-GEM software for the reservoir flow simulations. We find the scenario, with injectors perforated at the top and a central producing well perforated at the bottom, able to both store the most CO2 and produce the most oil. The storage and sweep efficiencies are high, highlighting the difference with typical CO2 storage scenarios without pressure mitigation.

For more information about this project and to access the related studies and products, see: https://www.eftf.ga.gov.au/carbon-co2-storage-residual-oil-zones.

Data is available on request from clientservices@ga.gov.au - Quote eCat# 149366

Lineage

Maintenance and Update Frequency: asNeeded

Statement:

This product is a key output from the Residual Oil Zone CO2 storage study under the EFTF program (2020-2024), completed under contract number 006410 between GA and CSIRO. It follows a preliminary methodology report (eCat 145932) and is associated with a petrophysical study (eCat 149323) as well as associated datasets (to be linked).

Notes

Purpose
This product is an output of the CO2 Storage in Residual Oil Zones project that was conducted through the Exploring for the Future program (2020-2024).

Created: 25 03 2024

Issued: 24 09 2024

This dataset is part of a larger collection

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text: westlimit=112.00; southlimit=-44.00; eastlimit=154.00; northlimit=-9.00

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Download the report (pdf) [1.9 MB]

uri : https://d28rz98at9flks.cloudfront.net/149366/149366_00_0.pdf External Link

Identifiers

DOI : 10.26186/149366
URI : pid.geoscience.gov.au/dataset/ga/149366
global : 3b38434c-9a54-464f-812c-f9b075b64a90

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