Data

Pedirka and Western Eromanga seismic interpretations Data package and explanatory notes

Geoscience Australia

Bradshaw, B. ; Szczepaniak, M. ; Lund, D. ; Iwanec, J. ; Bradey, K.

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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=https://pid.geoscience.gov.au/dataset/ga/149068&rft.title=Pedirka and Western Eromanga seismic interpretations Data package and explanatory notes&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/149068&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=This data package provides seismic interpretations that have been generated in support of the energy resource assessments under the Australia’s Future Energy Resources (AFER) project. Explanatory notes are also included. The AFER project is part of Geoscience Australia’s Exploring for the Future (EFTF) Program—an eight year, $225 million Australian Government funded geoscience data and precompetitive information acquisition program to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, Geoscience Australia is building a national picture of Australia’s geology and resource potential. This will help support a strong economy, resilient society and sustainable environment for the benefit of all Australians. The EFTF program is supporting Australia’s transition to a low emissions economy, industry and agriculture sectors, as well as economic opportunities and social benefits for Australia’s regional and remote communities. Further details are available at http://www.ga.gov.au/eftf. The seismic interpretations build on the recently published interpretations by Szczepaniak et al. (2023) by providing updated interpretations in the AFER Project area for the Top Cadna-owie (CC10) and Top Pre-Permian (ZU) horizons, as well as interpretations for 13 other horizons that define the tops of play intervals being assessed for their energy resource potential (Figure 1). Seismic interpretations for the AFER Project are constrained by play interval tops picked on well logs that have been tied to the seismic profiles using time-depth data from well completion reports. The Pedirka and Western Eromanga basins are underexplored and contain relatively sparse seismic and petroleum well data. The AFER Project has interpreted play interval tops in 41 wells, 12 seismic horizons (Top Cadna-owie and underlying horizons) on 238 seismic lines (9,340 line kilometres), and all 15 horizons on 77 recently reprocessed seismic lines (3,370 line kilometres; Figure 2). Note that it has only been possible to interpret the Top Mackunda-Winton, Top Toolebuc-Allaru and Top Wallumbilla horizons on the reprocessed seismic lines as these are the only data that provide sufficient resolution in the shallow stratigraphic section to confidently interpret seismic horizons above the Top Cadna-owie seismic marker. The seismic interpretations are provided as point data files for 15 horizons, and have been used to constrain the zero edges for gross-depositional environment maps in Bradshaw et al. (2023) and to produce depth-structure and isochore maps for each of the 14 play intervals in Iwanec et al. (2023). The data package includes the following datasets: 1) Seismic interpretation point file data in two-way-time for up to 15 horizons using newly reprocessed seismic data and a selection of publicly available seismic lines (Appendix A). 2) Geographical layers for the seismic lines used to interpret the top Cadna-owie and underlying horizons (Cadnaowie_to_TopPrePermian_Interpretation.shp), and the set of reprocessed lines used to interpret all 15 seismic horizons (All_Horizons_Interpretation.shp; Appendix B). These seismic interpretations are being used to support the AFER Project’s play-based energy resource assessments in the Pedirka and Western Eromanga basins.Maintenance and Update Frequency: notPlannedStatement: This package provides a metadata statement and seismic interpretations that have been generated in support of the energy resource assessments under the Australia’s Future Energy Resources (AFER) project as part of the EFTF program. Seismic datasets, in 2D-SEGY format, were downloaded from the online data portals for NT/QLD/SA and Geoscience Australia (GA). The latest processed versions of seismic lines were used wherever possible. Interpretation was undertaken using the Schlumberger Petrel software (2020.2). Final two-way time (TWT) interpretation for the horizons were exported as point ASCII files in X,Y,Z format, MGA53 GDA 94, AHD. Refer to the metadata statement for further details.&rft.creator=Bradshaw, B. &rft.creator=Szczepaniak, M. &rft.creator=Lund, D. &rft.creator=Iwanec, J. &rft.creator=Bradey, K. &rft.date=2024&rft.coverage=westlimit=140; southlimit=-28; eastlimit=133; northlimit=-23; projection=GDA94 / geographic 2D (EPSG: 4283)&rft.coverage=westlimit=140; southlimit=-28; eastlimit=133; northlimit=-23; projection=GDA94 / geographic 2D (EPSG: 4283)&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=Any&rft_rights=Any&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2023&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=Australia's Future Energy Resources project&rft_subject=EFTF – Exploring for the Future&rft_subject=Northern Territory&rft_subject=South Australia&rft_subject=Queensland&rft_subject=Cretaceous&rft_subject=Jurassic&rft_subject=Mesozoic&rft_subject=Permian&rft_subject=Great Artesian Basin&rft_subject=Eromanga Basin&rft_subject=Pedirka Basin&rft_subject=Simpson Basin&rft_subject=groundwater&rft_subject=Energy&rft_subject=Crown Point Formation&rft_subject=Purni Formation&rft_subject=Walkandi Formation&rft_subject=Peera Peera Formatoin&rft_subject=Poolowanna Forma&rft_subject=Hutton Sandstone&rft_subject=Birkhead Formation&rft_subject=Adori Sandstone&rft_subject=Westbourne Formation&rft_subject=Namur Sandstone&rft_subject=Murta Formation&rft_subject=Algebuckina Sandstone&rft_subject=De Souza Sandstone&rft_subject=Cadna-owie Formation&rft_subject=Wallumbilla Formation&rft_subject=Bulldog Shale&rft_subject=Coorikiana Sandstone&rft_subject=Toolebuc formation&rft_subject=Allaru Mudstone&rft_subject=Oodnadatta Formation&rft_subject=Mackunda Formation&rft_subject=Winton Formation&rft_subject=Sedimentology&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data

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Brief description

This data package provides seismic interpretations that have been generated in support of the energy resource assessments under the Australia’s Future Energy Resources (AFER) project. Explanatory notes are also included. The AFER project is part of Geoscience Australia’s Exploring for the Future (EFTF) Program—an eight year, $225 million Australian Government funded geoscience data and precompetitive information acquisition program to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, Geoscience Australia is building a national picture of Australia’s geology and resource potential. This will help support a strong economy, resilient society and sustainable environment for the benefit of all Australians. The EFTF program is supporting Australia’s transition to a low emissions economy, industry and agriculture sectors, as well as economic opportunities and social benefits for Australia’s regional and remote communities. Further details are available at http://www.ga.gov.au/eftf. The seismic interpretations build on the recently published interpretations by Szczepaniak et al. (2023) by providing updated interpretations in the AFER Project area for the Top Cadna-owie (CC10) and Top Pre-Permian (ZU) horizons, as well as interpretations for 13 other horizons that define the tops of play intervals being assessed for their energy resource potential (Figure 1). Seismic interpretations for the AFER Project are constrained by play interval tops picked on well logs that have been tied to the seismic profiles using time-depth data from well completion reports. The Pedirka and Western Eromanga basins are underexplored and contain relatively sparse seismic and petroleum well data. The AFER Project has interpreted play interval tops in 41 wells, 12 seismic horizons (Top Cadna-owie and underlying horizons) on 238 seismic lines (9,340 line kilometres), and all 15 horizons on 77 recently reprocessed seismic lines (3,370 line kilometres; Figure 2). Note that it has only been possible to interpret the Top Mackunda-Winton, Top Toolebuc-Allaru and Top Wallumbilla horizons on the reprocessed seismic lines as these are the only data that provide sufficient resolution in the shallow stratigraphic section to confidently interpret seismic horizons above the Top Cadna-owie seismic marker. The seismic interpretations are provided as point data files for 15 horizons, and have been used to constrain the zero edges for gross-depositional environment maps in Bradshaw et al. (2023) and to produce depth-structure and isochore maps for each of the 14 play intervals in Iwanec et al. (2023). The data package includes the following datasets: 1) Seismic interpretation point file data in two-way-time for up to 15 horizons using newly reprocessed seismic data and a selection of publicly available seismic lines (Appendix A). 2) Geographical layers for the seismic lines used to interpret the top Cadna-owie and underlying horizons (Cadnaowie_to_TopPrePermian_Interpretation.shp), and the set of reprocessed lines used to interpret all 15 seismic horizons (All_Horizons_Interpretation.shp; Appendix B). These seismic interpretations are being used to support the AFER Project’s play-based energy resource assessments in the Pedirka and Western Eromanga basins.

Lineage

Maintenance and Update Frequency: notPlanned

Statement:

This package provides a metadata statement and seismic interpretations that have been generated in support of the energy resource assessments under the Australia’s Future Energy Resources (AFER) project as part of the EFTF program. Seismic datasets, in 2D-SEGY format, were downloaded from the online data portals for NT/QLD/SA and Geoscience Australia (GA). The latest processed versions of seismic lines were used wherever possible. Interpretation was undertaken using the Schlumberger Petrel software (2020.2). Final two-way time (TWT) interpretation for the horizons were exported as point ASCII files in X,Y,Z format, MGA53 GDA 94, AHD. Refer to the metadata statement for further details.

Notes

Purpose
Release data sets associated with Australia's Future Energy Resources project under the EFTF Program.

Issued: 28 02 2024

This dataset is part of a larger collection

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text: westlimit=140; southlimit=-28; eastlimit=133; northlimit=-23; projection=GDA94 / geographic 2D (EPSG: 4283)

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Download the data package (zip) [35.0 MB]

uri : https://d28rz98at9flks.cloudfront.net/149068/149068_00_0.zip External Link

Identifiers

DOI : 10.26186/149068
URI : pid.geoscience.gov.au/dataset/ga/149068
global : 38582f5f-022d-4346-bd86-333e67315afb

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