2021 Cooper Basin 2Dcubed PrSTM Repro, Merged 2D3D Volume Part 5 of 10.
Published: 13 Jul 2022 Created: 08 Nov 2024 Revised: 20 Dec 2024

TGS has reprocessed South Australia’s extensive open-file 2D seismic database over the Cooper Basin, using their 2Dcubed technology to generate Pre-Stack Time Migrated 2D and pseudo-3D outputs over the basin. Field data from 3855 lines of 2D...

TGS has reprocessed South Australia’s extensive open-file 2D seismic database over the Cooper Basin, using their 2Dcubed technology to generate Pre-Stack Time Migrated 2D and pseudo-3D outputs over the basin. Field data from 3855 lines of 2D seismic data acquired between 1985 and 2012 were used as inputs into the study, which is being undertaken with the support of Chevron Australia Pty Ltd. Pre-Stack Depth Migration is also being undertaken and PrSDM products will be available in late 2022 or early 2023. This data package contains workstation-ready full-offset SEGY data for the merged 2D3D PrSTM volume i.e. the pre-existing full-offset final data from the various 3D seismic surveys within the area-of-interest has been merged into the pseudo-3D PrSTM volume generated from the 2D lines. Coordinates in trace headers reference GDA2020 / MGA zone 54. Time of First Sample (TFS) It is important to note that during the processing sequence, an upward bulk shift of 200ms was applied to the amplitude data immediately prior to stacking. The amplitude data therefore has time of first sample of -200 ms (in trace header byte location 105). If the stacking velocities are used for depth-conversion of the volume or of interpreted horizons derived from the volume, please note that because the stacking velocities were calculated, applied and exported prior to this point in the workflow, hence the velocity volume has a TFS of 0ms in the trace headers. To align the velocity data correctly with the amplitude data, it should be loaded with a manually-entered TFS of -200ms. Included in the package: -SEGY data -Loading notes -Map image -Timeslice image -Processing Report and User Guide -Link to TGS presentation on the PrSTM outputs- https://www.youtube.com/watch?v=c6_pVfM77No

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About this record

Record No mesac29842
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Geophysical Report - Seismic Report - Processing
Contributor Energy Resources Division, DEM
Sponsor
Tenement
Tenement Holder
Operator
Geological Province
Mine Name
Stratigraphy
Commodity
    Notes
    Geographic Locality: NE South Australia
    Doc No: GSR 2021/15

    Geographic Locality: NE South Australia Doc No: GSR 2021/15

    Language English
    Metadata Standard ISO 19115-3

    Citations

    Use constraints License
    License Creative Commons Attribution 4.0
    Persistent identifier https://pid.sarig.sa.gov.au/document/mesac29842
    Citation 2022. 2021 Cooper Basin 2Dcubed PrSTM Repro, Merged 2D3D Volume Part 5 of 10. Geophysical Report - Seismic Report - Processing
    https://pid.sarig.sa.gov.au/document/mesac29842

    Technical information

    Status
    Maintenance and Update Frequency
    Geographic Reference GDA2020 (EPSG:7844)
    Geo bounding box {"type":"Polygon","coordinates":[[[129,-39],[141,-39],[141,-26],[129,-26],[129,-39]]]}
    Purpose
    
                        
                        
    
                        
                      
    Lineage