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


Authors / CoAuthors

Cubitt, C. | Abbott, S. | Bernardel, G. | Gunning, M. | Nguyen, D. | Nicholson, C. | Stoate, A. | Mackie, S. | Abbott, S.

Abstract

<div>Gas production from the Inner Otway Basin commenced in the early 2000s but the deep-water part of this basin remains an exploration frontier. Historically, the understanding of plays in this region were largely model driven and therefore the ground-truthing of depositional environments (DE) and gross depositional environments (GDE) are critical. This aspect has been investigated for the Sherbrook Supersequence (SS) by the integration of legacy wireline and core data, with regional 2D seismic facies mapping of new and reprocessed data from Geoscience Australia’s 2020 Otway Basin seismic program. Core observations were matched to wireline logs and seismic facies with resulting well based DE interpretations calibrated to seismic resolution Regional GDE intervals. Integration of well and seismic observations lead to the compilation of a basin-wide Regional GDE map for the Sherbrook SS. This GDE map indicates the distribution of Sherbrook SS play elements such as source rock, seal and reservoir, especially across the Deep Water Otway Basin where well data is sparse.</div> Published in The APPEA Journal 2023. <b>Citation:</b> Cubitt Chris, Abbott Steve, Bernardel George, Gunning Merrie-Ellen, Nguyen Duy, Nicholson Chris, Stoate Alan (2023) Cretaceous depositional environment interpretation of offshore Otway Basin cores and wireline logs; application to the generation of basin-scale gross depositional environment maps. <i>The APPEA Journal</i><b> 63</b>, S215-S220. https://doi.org/10.1071/AJ22090

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document

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147677

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Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords

( Project )
  • Otway Basin
( Project )
  • core
( Project )
  • wireline logs
( Project )
  • Sherbrook Supersequence
( Project )
  • gross depositional environment
  • Core
  • Wireline Logs
  • Sherbrook Supersequence
  • Otway Basin
  • gross depositional environment
theme.ANZRC Fields of Research.rdf
  • Stratigraphy (incl. biostratigraphysequence stratigraphy and basin analysis)Resource geoscience
  • Published_External

Publication Date

2023-07-25T07:15:39

Creation Date

2023-02-07T12:00:00

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Australian Government Security Classification System    

Classification - unclassified

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Creative Commons Attribution 4.0 International Licence    

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Status

completed

Purpose

extended abstract for APPPEA 2023 published in The APPEA Journal (CSIRO Publishing)

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asNeeded

Topic Category

geoscientificInformation

Series Information

The APPEA Journal Vol 63 (S1: Proceedings) S215 - S220

Lineage

<div>This product is an output of Offshore Energy Systems (Basin Systems Branch) Otway Basin Project. This is an extended abstract for the APPEA 2023 conference which has been published in The APPEA Journal.</div>

Parent Information

Extents

[41.00, 37.00, 138.00, 145.00]

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Spatial Resolution

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