Shipwreck and Sherbrook Supersequence Regional Gross Depositional Environments, offshore Otway Basin

The Shipwreck and Sherbrook supersequences together constitute the upper Cretaceous succession in the Otway Basin that was deposited during an extensional basin phase. In the Shipwreck Trough, where the upper Cretaceous succession is well explored, gas fields are hosted by the Shipwreck Supersequence (SS). Elsewhere, the upper Cretaceous interval is lightly explored, and the deep-water area is considered an exploration frontier. We present regional gross depositional environment (RGDE) maps for the LC1.1 and LC1.2 sequences of the Shipwreck SS, and the LC2 Sherbrook SS. Fluvial Plain, Coastal-Delta Plain and Shelf RGDEs were interpreted from wireline logs, cores, and seismic facies. The Fluvial Plain and Coastal-Delta Plain RGDEs are mostly restricted to the inboard platform areas and the inner Morum Sub-basin. The mud-prone Shelf RGDE is widespread across the deep-water Morum and Nelson depocentres. The extent of the Fluvial and Coastal-Delta Plain belts progressively increases up-section, imparting a regressive aspect to the succession, and delineating a large fluvial-deltaic complex in the north-west of the basin. Thick seal development across the greater Shipwreck Trough, potentially mature source rocks in the deep-water basin, and thick reservoir development in the hanging wall of growth faults in the inner Morum Sub-basin are insights derived from this study, and will inform area selection for detailed gross depositional environment mapping, formulation of new hydrocarbon and carbon dioxide storage plays, and inputs for petroleum systems modelling.


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

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

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Identification info

Date (Creation)
2024-01-24T20:00:00
Date (Publication)
2024-06-20T02:43:50
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149180

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Commonwealth of Australia (Geoscience Australia)

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Author

Abbott, S.

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Author

Cubitt, C.

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Author

Bernardel, G.

 Internal Contact
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Nicholson, C.

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Nguyen, D.

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Editor

Mackie, S.

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

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2024 AEP Conference extended abstract, published in The AEP Journal.

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Completed
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Minerals, Energy and Groundwater Division

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Commonwealth of Australia (Geoscience Australia)

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Abbott, S.

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  • Geoscientific information

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W


Maintenance and update frequency
As needed

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Title

Product data repository: Various Formats

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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

  • Unfunded pre-competitive geoscience

Keywords

  • Otway Basin

Keywords

  • Cretaceous

Keywords

  • Shipwreck Supersequence

Keywords

  • Sherbrook Supersequence

Keywords

  • Austral 3 Petroleum System

Keywords

  • gross depositional environment

theme.ANZRC Fields of Research.rdf

  • Resource geoscience

  • Stratigraphy (incl. biostratigraphy

  • sequence stratigraphy and basin analysis)

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  • Published_External

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Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

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https://creativecommons.org/licenses/by/4.0/

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© Commonwealth of Australia (Geoscience Australia) 2024

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Australian Government Security Classification System

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2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified
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Australian Government Security Classification System

Associated resource

Association Type
Was informed by
Title

Surface Grids, Isochron Grids, and Fault Maps, Offshore Otway Basin

Citation identifier
146398

Citation identifier
f43f7c3f-d73b-45b3-8f08-db83621a9238

Website

http://pid.geoscience.gov.au/dataset/ga/146398

Link to eCat metadata record landing page

Associated resource

Association Type
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Title

The Northwest Offshore Otway Basin Well Folio

Citation identifier
146429

Citation identifier
0ec999a2-1f5f-4f6a-8ca6-5922feeef453

Website

http://pid.geoscience.gov.au/dataset/ga/146429

Link to eCat metadata record landing page

Associated resource

Association Type
Was informed by
Title

Cretaceous depositional environment interpretation of offshore Otway Basin cores and wireline logs application to the generation of basin scale gross depositional environment maps

Citation identifier
147677

Citation identifier
d4e070d3-6bdb-4c73-b8c5-3cda86205dfe

Website

http://pid.geoscience.gov.au/dataset/ga/147677

Link to eCat metadata record landing page

Associated resource

Association Type
Was informed by
Title

Towards a regional understanding of Sherbrook Supersequence Gross Depositional Environments, offshore Otway Basin

Citation identifier
147395

Citation identifier
edda89ce-171f-45ac-bf42-c6619c241526

Website

http://pid.geoscience.gov.au/dataset/ga/147395

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English
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Commonwealth of Australia (Geoscience Australia)

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<div>This will be a permanent record once published in The Australian Energy Producers Journal 2024. The uploaded draft will need to be replaced with the final published version after May 20 2024.</div>

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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/79ca4925-ad4f-496a-8293-aece150cd262

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GeoNetwork UUID

Language
English
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UTF8
Contact
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Commonwealth of Australia (Geoscience Australia)

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Abbott, S.

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Conference Abstract

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Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/149180

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/79ca4925-ad4f-496a-8293-aece150cd262

Date info (Creation)
2024-06-17T05:49:52
Date info (Revision)
2024-06-17T05:49:52

Metadata standard

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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

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S
E
W


Keywords

Unfunded pre-competitive geoscience
theme.ANZRC Fields of Research.rdf
Resource geoscience Stratigraphy (incl. biostratigraphy sequence stratigraphy and basin analysis)

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