Data

Central Australian Basins 2D Reprocessed Seismic Data Package 2023

Geoscience Australia
Commonwealth of Australia (Geoscience Australia)
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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/148931&rft.title=Central Australian Basins 2D Reprocessed Seismic Data Package 2023&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/148931&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=The Central Australian Basins 2D Seismic Reprocessing Project is an initiative under Geoscience Australia's Australia’s Future Energy Resources (AFER) program, funded by the Australian Government through the Exploring for the Future (EFTF) program. The project aims to assess the untapped resource potential of selected underexplored onshore sedimentary basins in terms of natural gas, oil, and groundwater, while also investigating opportunities for geological storage of carbon dioxide and hydrogen. By providing pre-competitive data, the initiative seeks to stimulate investment in mineral, energy, and groundwater exploration. This project focuses on improving the understanding of the geological evolution and relationships among various Australian basins, ranging from the early Paleozoic Amadeus, Warburton and Adavale basins to the Permian-Triassic Pedirka, Simpson, northern Cooper and southern Galilee basins, and the Jurassic–Cretaceous western Eromanga Basin. To achieve this, modern seismic processing techniques were applied to 33 selected multi-vintage legacy lines with a total length of approximately 2,100 km, enhancing the resolution and image quality of the seismic lines. The dataset includes deep crustal as well as shallow lines from Queensland and South Australia. The data were collected using various acquisition sources such as Vibroseis, Geoflex, and dynamite. Six merged lines were also created to aid in interpretation. Both stacks and gather data are provided in SEG-Y format, along with navigation data, velocity, and statics. The reprocessing focused on enhancing seismic reflectors and faults, attenuating noise, and optimising frequency content for target depths. Techniques used in the reprocessing include creating a 3D static model, noise attenuation methods, minimum phasing of the Vibroseis data to match dynamite lines, surface-consistent deconvolution, and building a precise velocity model for optimising pre-stack time and depth migration.Processed gather data for this survey are also available on request from clientservices@ga.gov.au - Quote eCat# 148931Maintenance and Update Frequency: asNeededStatement: The reprocessed 2D seismic data in this project has its roots in seismic surveys conducted during the 1970s and 1980s. Originally acquired as part of various geological exploration initiatives of that era, these legacy lines have been given new life through the Central Australian Basins 2D Seismic Reprocessing Project. Funded by the Australian Government through the Exploring for the Future (EFTF) program and under the aegis of Geoscience Australia's Australia’s Future Energy Resources (AFER) program, this data has been thoroughly reprocessed.Utilising modern seismic processing techniques, the data underwent several rounds of enhancements. Algorithms for noise attenuation, 3D static modelling, minimum phasing of vibroseis data to match dynamite lines, and surface-consistent deconvolution were employed. The goal was to improve the quality of seismic reflectors and faults, reduce noise, and optimise frequency content for various target depths. The reprocessing has brought these multi-vintage legacy lines into a more usable and accurate format, available in SEG-Y, with additional navigation data, velocity, and statics.This reprocessed dataset is housed and managed by Geoscience Australia. It is available for request through clientservices@ga.gov.au, quoting the eCat number #148931.&rft.creator=Commonwealth of Australia (Geoscience Australia) &rft.date=2023&rft.coverage=westlimit=138; southlimit=-28; eastlimit=146; northlimit=-24; projection=GDA94 / MGA zone 54 / projected (EPSG: 28354)&rft.coverage=westlimit=138; southlimit=-28; eastlimit=146; northlimit=-24; projection=GDA94 / MGA zone 54 / projected (EPSG: 28354)&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=Central Australian Basins&rft_subject=EFTF – Exploring for the Future&rft_subject=AFER – Australian Future Energy Resources&rft_subject=Precompetitive Data&rft_subject=Seismic Reprocessing&rft_subject=Sedimentary Basins&rft_subject=Seismology and seismic exploration&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Brief description

The Central Australian Basins 2D Seismic Reprocessing Project is an initiative under Geoscience Australia's "Australia’s Future Energy Resources" (AFER) program, funded by the Australian Government through the "Exploring for the Future" (EFTF) program. The project aims to assess the untapped resource potential of selected underexplored onshore sedimentary basins in terms of natural gas, oil, and groundwater, while also investigating opportunities for geological storage of carbon dioxide and hydrogen. By providing pre-competitive data, the initiative seeks to stimulate investment in mineral, energy, and groundwater exploration.
 
This project focuses on improving the understanding of the geological evolution and relationships among various Australian basins, ranging from the early Paleozoic Amadeus, Warburton and Adavale basins to the Permian-Triassic Pedirka, Simpson, northern Cooper and southern Galilee basins, and the Jurassic–Cretaceous western Eromanga Basin. To achieve this, modern seismic processing techniques were applied to 33 selected multi-vintage legacy lines with a total length of approximately 2,100 km, enhancing the resolution and image quality of the seismic lines. The dataset includes deep crustal as well as shallow lines from Queensland and South Australia. The data were collected using various acquisition sources such as Vibroseis, Geoflex, and dynamite. Six merged lines were also created to aid in interpretation.
 
Both stacks and gather data are provided in SEG-Y format, along with navigation data, velocity, and statics. The reprocessing focused on enhancing seismic reflectors and faults, attenuating noise, and optimising frequency content for target depths. Techniques used in the reprocessing include creating a 3D static model, noise attenuation methods, minimum phasing of the Vibroseis data to match dynamite lines, surface-consistent deconvolution, and building a precise velocity model for optimising pre-stack time and depth migration.

Processed gather data for this survey are also available on request from clientservices@ga.gov.au - Quote eCat# 148931

Lineage

Maintenance and Update Frequency: asNeeded
Statement:
The reprocessed 2D seismic data in this project has its roots in seismic surveys conducted during the 1970s and 1980s. Originally acquired as part of various geological exploration initiatives of that era, these legacy lines have been given new life through the Central Australian Basins 2D Seismic Reprocessing Project. Funded by the Australian Government through the "Exploring for the Future" (EFTF) program and under the aegis of Geoscience Australia's "Australia’s Future Energy Resources" (AFER) program, this data has been thoroughly reprocessed.

Utilising modern seismic processing techniques, the data underwent several rounds of enhancements. Algorithms for noise attenuation, 3D static modelling, minimum phasing of vibroseis data to match dynamite lines, and surface-consistent deconvolution were employed. The goal was to improve the quality of seismic reflectors and faults, reduce noise, and optimise frequency content for various target depths. The reprocessing has brought these multi-vintage legacy lines into a more usable and accurate format, available in SEG-Y, with additional navigation data, velocity, and statics.

This reprocessed dataset is housed and managed by Geoscience Australia. It is available for request through clientservices@ga.gov.au, quoting the eCat number #148931.

Notes

Purpose
The Central Australian Basins 2D Seismic Reprocessing Project, an initiative under Geoscience Australia's AFER program, aims to comprehensively evaluate the untapped potential of various underexplored onshore sedimentary basins in Australia. Funded by the Australian Government's EFTF program, the project focuses on natural gas, oil, and groundwater resources, while also exploring opportunities for geological storage of carbon dioxide and hydrogen. The initiative uses modern seismic processing techniques to enhance the quality and resolution of legacy seismic lines, thereby contributing to an improved understanding of geological evolution across different time periods and basins. Available in SEG-Y format, the reprocessed data includes both stack and gather data, as well as ancillary information such as velocity and statics. The dataset serves as a pre-competitive tool aimed at encouraging investment in mineral, energy, and groundwater exploration by providing high-quality, actionable data to interested parties.

Issued: 27 11 2023

Data time period: 2022-10-14 to 2023-04-30

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146,-24 146,-28 138,-28 138,-24 146,-24

142,-26

text: westlimit=138; southlimit=-28; eastlimit=146; northlimit=-24; projection=GDA94 / MGA zone 54 / projected (EPSG: 28354)

Subjects
AFER – Australian Future Energy Resources | Central Australian Basins | EFTF – Exploring for the Future | Precompetitive Data | Published_External | Sedimentary Basins | Seismic Reprocessing | Seismology and seismic exploration | geoscientificInformation |

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Other Information
Download Location Map (zip) [4.9 MB]

uri : https://d28rz98at9flks.cloudfront.net/148931/148931_00_0.zip

Download Navigation (zip) [2.3 MB]

uri : https://d28rz98at9flks.cloudfront.net/148931/148931_01_0.zip

Download Processed Stacks (zip) [4.9 GB]

uri : https://d28rz98at9flks.cloudfront.net/148931/148931_02_0.zip

Download Processing Reports (zip) [64.3 MB]

uri : https://d28rz98at9flks.cloudfront.net/148931/148931_03_0.zip

Download Velocity (zip) [2.7 GB]

uri : https://d28rz98at9flks.cloudfront.net/148931/148931_04_0.zip

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