Data

Greater Shipwreck Trough (offshore Otway Basin): Surface Grids, Isochron Grids and Faults

Geoscience Australia
Bernardel, G. ; Abbott, S. ; Nicholson, C.
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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=info:doi10.26186/151129&rft.title=Greater Shipwreck Trough (offshore Otway Basin): Surface Grids, Isochron Grids and Faults&rft.identifier=10.26186/151129&rft.publisher=Geoscience Australia&rft.description=This data package provides two-way time structure and isochron grids for horizons, together with fault sticks and fault network polygons, interpreted in the greater Shipwreck Trough area of the offshore Otway Basin. The data package is derived from seismic interpretation of the Otway Basin Mega Merge 3D seismic dataset, which was created by merging and reprocessing fifteen 3D surveys. The data package includes the following digital datasets: 1. Structure grids and point datasets measured in two-way time below sea-level, for six interpreted seismic horizons within the Otway Mega Merge 3D seismic cube; 2. Derived isochron grids for several of these horizons measured in two-way time; and 3. Interpreted fault sticks and fault network polygons. This work was undertaken as part of the Australian Government’s Resourcing Australia’s Prosperity initiative (RAPi) and is intended to be used to support the evaluation of the potential of geological storage of carbon dioxide in the offshore Otway Basin.Maintenance and Update Frequency: asNeededStatement: This data is the result of detailed seismic interpretation within the Otway 3D Mega Merge seismic volume. All horizons, except for LC1.5, are derived from the regional interpretation work presented in the 2024 data package eCat #146398, and were tied to wells in Petrel software. Horizons were then exported from Petrel, imported to Petrosys where ASCII grid and float BIL surfaces and isochrons were generated. Faults were extracted from Petrel as points and Shapefiles.&rft.creator=Bernardel, G. &rft.creator=Abbott, S. &rft.creator=Nicholson, C. &rft.date=2026&rft.coverage=westlimit=142.00; southlimit=-40.20; eastlimit=143.50; northlimit=-38.40; projection=7854&rft.coverage=westlimit=142.00; southlimit=-40.20; eastlimit=143.50; northlimit=-38.40; projection=7854&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2026&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/pspf-annual-release&rft_subject=geoscientificInformation&rft_subject=Shipwreck Trough&rft_subject=offshore Otway Basin&rft_subject=Carbon Capture and Underground Storage (CCUS)&rft_subject=Cretaceous&rft_subject=Waarre Formation&rft_subject=Belfast Mudstone&rft_subject=Otway 3D Mega Merge&rft_subject=Shipwreck Fault Zone&rft_subject=Prawn Platform&rft_subject=Mussel Platfrom&rft_subject=Mussel Hinge Zone&rft_subject=Flaxman Formation&rft_subject=Nelson Sub-basin&rft_subject=Resourcing Australia's Prosperity&rft_subject=Carbon Capture, Utilisation and Storage&rft_subject=EARTH SCIENCES&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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CC-BY

Creative Commons Attribution 4.0 International Licence
https://creativecommons.org/licenses/by/4.0/

© Commonwealth of Australia (Geoscience Australia) 2026

Australian Government Security Classification System
https://www.protectivesecurity.gov.au/pspf-annual-release

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Full description

This data package provides two-way time structure and isochron grids for horizons, together with fault sticks and fault network polygons, interpreted in the greater Shipwreck Trough area of the offshore Otway Basin. The data package is derived from seismic interpretation of the Otway Basin Mega Merge 3D seismic dataset, which was created by merging and reprocessing fifteen 3D surveys. The data package includes the following digital datasets: 1. Structure grids and point datasets measured in two-way time below sea-level, for six interpreted seismic horizons within the Otway Mega Merge 3D seismic cube; 2. Derived isochron grids for several of these horizons measured in two-way time; and 3. Interpreted fault sticks and fault network polygons. This work was undertaken as part of the Australian Government’s Resourcing Australia’s Prosperity initiative (RAPi) and is intended to be used to support the evaluation of the potential of geological storage of carbon dioxide in the offshore Otway Basin.

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Maintenance and Update Frequency: asNeeded
Statement:

This data is the result of detailed seismic interpretation within the Otway 3D Mega Merge seismic volume. All horizons, except for LC1.5, are derived from the regional interpretation work presented in the 2024 data package eCat #146398, and were tied to wells in Petrel software. Horizons were then exported from Petrel, imported to Petrosys where ASCII grid and float BIL surfaces and isochrons were generated. Faults were extracted from Petrel as points and Shapefiles.

Notes

Purpose
The purpose of this product is to provide digital surface grids, isochron grids and fault maps for the greater Shipwreck Trough region (offshore Otway Basin) that government and industry can use for the assessment of underground storage of greenhouse gases in the Commonwealth jurisdiction.

Issued: 12 08 2026

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143.5,-38.4 143.5,-40.2 142,-40.2 142,-38.4 143.5,-38.4

142.75,-39.3

text: westlimit=142.00; southlimit=-40.20; eastlimit=143.50; northlimit=-38.40; projection=7854

Subjects
Belfast Mudstone | Carbon Capture and Underground Storage (CCUS) | Carbon Capture, Utilisation and Storage | Cretaceous | EARTH SCIENCES | Flaxman Formation | Mussel Hinge Zone | Mussel Platfrom | Nelson Sub-basin | Otway 3D Mega Merge | Prawn Platform | Published_External | Resourcing Australia's Prosperity | Shipwreck Fault Zone | Shipwreck Trough | Waarre Formation | geoscientificInformation | offshore Otway Basin |

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Other Information
Download metadata statement (pdf) [16.3 MB]

url : https://d28rz98at9flks.cloudfront.net/151129/151129_00_0.pdf

Download data package (zip) [1.24 GB]

url : https://d28rz98at9flks.cloudfront.net/151129/151129_01_0.zip

Surface Grids, Isochron Grids, and Fault Maps, Offshore Otway Basin (Updated September 2024)

local : 146398

Identifiers
ACN 633 798 857