Application of Diffraction Imaging and Steered Migration to 3D Seismic Data from the South West Hub CCS Project
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The assessment of subsurface architecture and location of faults is key information in CO2 geosequestration projects. The 3D seismic survey has been acquired as a part of the SW Hub CCS project in vicinity of potential future CO2 injection sites. The acquisition was carried out within the Harvey and Waroona Shires about 150 km south-east from Perth, Western Australia. In order to support the fault detection and decrease uncertainties on the structural framework two additional imaging techniques have been applied to the 3D seismic volume. One is a diffraction imaging algorithm, the other is an alteration to the post-stack Kirchhoff migration – the steered migration. The application of these methods to the seismic volume enhanced the signal to noise ratio of the final migrated images and supported the understanding of fault distribution in the study area.
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