Data

Offshore Otway Basin core logs (metadata statement and data package)

Geoscience Australia
Cubitt, C. ; Nguyen, D. ; Stoate, A.
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
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/149190&rft.title=Offshore Otway Basin core logs (metadata statement and data package)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/149190&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=Gas production from the Inner Otway Basin commenced in the early 2000s but the deep-water part of this basin remains an exploration frontier. Ground-truthing of depositional environments (DE) and gross depositional environments (GDE) is an important contribution to play-based exploration in the Otway Basin. This digital dataset consists of core logs and core photographs of approximately 700 m of core from 19 wells across the entire offshore basin. Observations recorded in the logs include lithology, modal grain size, stacking patterns, carbonate mud percentage, bioturbation index, and DE/GDE intervals. Cubitt et al. 2023 describes how core-based DE/GDE interpretations were applied to wireline log signatures with interpretations made from TD to the base Cenozoic in 38 wells across the basin. DE and DE tracks are included in the well composite logs compiled by Nguyen et al (2024).Maintenance and Update Frequency: asNeededStatement: Well core logs were produced using Mount Sopris’ WellCADTM and wireline logs were analysed with Schlumberger’s TechlogTM software package. The data presented in the well core logs were from Geoscience Australia’s well core analysis and well log analysis. Data extracted from well completion reports (WCRs) include well header information, wireline logging and conventional drilled core descriptions. Well completion reports are available from the National Offshore Petroleum Information Management System (NOPIMS) http://www.nopims.gov.au.&rft.creator=Cubitt, C. &rft.creator=Nguyen, D. &rft.creator=Stoate, A. &rft.date=2024&rft.coverage=westlimit=139.00; southlimit=42.00; eastlimit=144.00; northlimit=37.00&rft.coverage=westlimit=139.00; southlimit=42.00; eastlimit=144.00; northlimit=37.00&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=© Commonwealth of Australia (Geoscience Australia) 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=offshore Otway Basin&rft_subject=Shipwreck Supersequence&rft_subject=Sherbrook Supersequence&rft_subject=Cretaceous&rft_subject=gross depositional environment&rft_subject=core log&rft_subject=Sedimentology&rft_subject=Stratigraphy (incl. biostratigraphy&rft_subject=sequence stratigraphy and basin analysis)&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
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

http://creativecommons.org/licenses/

© Commonwealth of Australia (Geoscience Australia) 2024

Australian Government Security Classification System

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

Australian Government Security Classification System

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Brief description

Gas production from the Inner Otway Basin commenced in the early 2000s but the deep-water part of this basin remains an exploration frontier. Ground-truthing of depositional environments (DE) and gross depositional environments (GDE) is an important contribution to play-based exploration in the Otway Basin. This digital dataset consists of core logs and core photographs of approximately 700 m of core from 19 wells across the entire offshore basin. Observations recorded in the logs include lithology, modal grain size, stacking patterns, carbonate mud percentage, bioturbation index, and DE/GDE intervals. Cubitt et al. 2023 describes how core-based DE/GDE interpretations were applied to wireline log signatures with interpretations made from TD to the base Cenozoic in 38 wells across the basin. DE and DE tracks are included in the well composite logs compiled by Nguyen et al (2024).

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Maintenance and Update Frequency: asNeeded
Statement: Well core logs were produced using Mount Sopris’ WellCADTM and wireline logs were analysed with Schlumberger’s TechlogTM software package. The data presented in the well core logs were from Geoscience Australia’s well core analysis and well log analysis. Data extracted from well completion reports (WCRs) include well header information, wireline logging and conventional drilled core descriptions. Well completion reports are available from the National Offshore Petroleum Information Management System (NOPIMS) http://www.nopims.gov.au.

Notes

Purpose
Pre-competitive data for hydrocarbon exploration

Created: 30 01 2024

Issued: 22 10 2024

This dataset is part of a larger collection

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144,37 144,42 139,42 139,37 144,37

141.5,39.5

text: westlimit=139.00; southlimit=42.00; eastlimit=144.00; northlimit=37.00

Subjects
Cretaceous | Published_External | Sedimentology | Sherbrook Supersequence | Shipwreck Supersequence | Stratigraphy (incl. biostratigraphy | core log | geoscientificInformation | gross depositional environment | offshore Otway Basin | sequence stratigraphy and basin analysis) |

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Other Information
Download the data package (zip) [2.1 GB]

uri : https://d28rz98at9flks.cloudfront.net/149190/149190_00_0.zip

Download the metadata statement (pdf) [5.3 MB]

uri : https://d28rz98at9flks.cloudfront.net/149190/149190_01_0.pdf

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