Data

GA Enniskillen 1 MDT water sample preliminary analyses (digital dataset)

Geoscience Australia
Geoscience Australia ; Hostetler, S. ; Roach, I.
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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:doi10.26186/151180&rft.title=GA Enniskillen 1 MDT water sample preliminary analyses (digital dataset)&rft.identifier=10.26186/151180&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=The Data Driven Discoveries program is a $30.9 million initiative led by Geoscience Australia in collaboration with the Geological Survey of Queensland. The program aims to re-examine decades old seismic data and collect new geoscientific data to identify opportunities for resource discovery in the underexplored Adavale Basin in south-central Queensland. This program supports the Australian Government’s Net Zero Plan by researching opportunities for hydrogen storage and seeks to improve understanding of the basin’s minerals, energy and groundwater potential.   In November 2025, the program successfully completed the Adavale Basin stratigraphic drilling project as part of its final phase of delivery, where the GA Enniskillen 1 borehole reached a total depth of 3,023 metres. Occurring near the town of Blackall, the borehole provided 976 metres of Adavale Basin drill core, rock chips, groundwater samples, and comprehensive geophysical logs. This document describes the GA Enniskillen 1 MDT formation water sample preliminary analysis dataset and associated deliverables. The data comprise water chemistry measurements acquired to characterise fluid content and reservoir properties. Provided products include the tabulated water chemistry data. The dataset is suitable for integration with core and drilling information for formation evaluation, zonation, and subsurface modelling. Maintenance and Update Frequency: asNeededStatement: This dataset consists of a written report and associated Microsoft Excel files delivered by SLB to Geoscience Australia for the GA Enniskillen 1 deep stratigraphic borehole. &rft.creator=Geoscience Australia &rft.creator=Hostetler, S. &rft.creator=Roach, I. &rft.date=2026&rft.coverage=westlimit=145.45; southlimit=-25.13; eastlimit=146.01; northlimit=-24.76; projection=1168&rft.coverage=westlimit=145.45; southlimit=-25.13; eastlimit=146.01; northlimit=-24.76; projection=1168&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=Adavale Basin&rft_subject=Groundwater chemistry&rft_subject=Stratigraphic Borehole&rft_subject=GA Enniskillen 1&rft_subject=Devonian&rft_subject=Wireline logging&rft_subject=Data Driven Discoveries, Adavale Basin Stratigraphic Drilling Program&rft_subject=Stratigraphy (incl. biostratigraphy, sequence stratigraphy and basin analysis)&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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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

The Data Driven Discoveries program is a $30.9 million initiative led by Geoscience Australia in collaboration with the Geological Survey of Queensland. The program aims to re-examine decades old seismic data and collect new geoscientific data to identify opportunities for resource discovery in the underexplored Adavale Basin in south-central Queensland. This program supports the Australian Government’s Net Zero Plan by researching opportunities for hydrogen storage and seeks to improve understanding of the basin’s minerals, energy and groundwater potential.   

In November 2025, the program successfully completed the Adavale Basin stratigraphic drilling project as part of its final phase of delivery, where the GA Enniskillen 1 borehole reached a total depth of 3,023 metres. Occurring near the town of Blackall, the borehole provided 976 metres of Adavale Basin drill core, rock chips, groundwater samples, and comprehensive geophysical logs. 

This document describes the GA Enniskillen 1 MDT formation water sample preliminary analysis dataset and associated deliverables. The data comprise water chemistry measurements acquired to characterise fluid content and reservoir properties. Provided products include the tabulated water chemistry data. The dataset is suitable for integration with core and drilling information for formation evaluation, zonation, and subsurface modelling. 

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Maintenance and Update Frequency: asNeeded
Statement:

This dataset consists of a written report and associated Microsoft Excel files delivered by SLB to Geoscience Australia for the GA Enniskillen 1 deep stratigraphic borehole. 

Notes

Purpose
This data comprise water chemistry measurements acquired to characterise fluid content and reservoir properties. Provided products include the tabulated water chemistry data. The dataset is suitable for integration with core and drilling information for formation evaluation, zonation, and subsurface modelling.

Issued: 27 07 2026

Data time period: 2026-06-12 to 2026-06-22

This dataset is part of a larger collection

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146.01,-24.76 146.01,-25.13 145.45,-25.13 145.45,-24.76 146.01,-24.76

145.73,-24.945

text: westlimit=145.45; southlimit=-25.13; eastlimit=146.01; northlimit=-24.76; projection=1168

Subjects
Adavale Basin | Data Driven Discoveries, Adavale Basin Stratigraphic Drilling Program | Devonian | GA Enniskillen 1 | Groundwater chemistry | Published_External | Stratigraphic Borehole | Stratigraphy (incl. biostratigraphy, sequence stratigraphy and basin analysis) | Wireline logging | geoscientificInformation |

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Other Information
Download Metadata Report (pdf) [967 KB]

url : https://d28rz98at9flks.cloudfront.net/151180/151180_00_0.pdf

Download Preliminary Analysis (pdf) [932 KB]

url : https://d28rz98at9flks.cloudfront.net/151180/151180_01_1.pdf

Download Analyses Report (xlsx) [462 KB]

url : https://d28rz98at9flks.cloudfront.net/151180/151180_02_0.xlsx

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Defining a chemostratigraphic framework for the Adavale Basin - Inorganic and stable isotopic analysis of 10 petroleum wells from the Adavale Basin, Queensland

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Identifiers
ACN 633 798 857