Broadband processing for high-resolution site surveys involves a series of advanced techniques to enhance the full frequency range of seismic data, leading to superior near-surface imaging. Key steps include velocity modelling and processing (deghosting & designature) to improve the final image quality. These methods allow for both deeper penetration from low frequencies and higher resolution from high frequencies.
Stack QC: Final Stack vs Final Stack Onboard
Final Stack Onboard Processing
Final Stack Broadband Processing
Final Stack Onboard Processing
Final Stack Broadband Processing
Pseudo 3D processing
Pseudo-3D seismic processing in a site survey uses high-resolution 2D acquired data to create a 3D data volume, to improve subsurface characterization and aid interpretation, especially in shallow-depth environments.
This is a cost-effective alternative to full 3D surveys, particularly for geohazard assessments or shallow reservoir analysis
Time-slice Map Before Regularisation
Time-slice Map After Regularisation
Time-slice Map Before Regularisation
Time-slice Map After Regularisation
Depth velocity model building & Imaging
Accurately map subsurface geological structures by converting seismic data from a time-based representation to a depth-based one. This process is crucial for correctly positioning geological layers, which avoids distortions like velocity pull-up and sag, and allows for a geologically realistic interpretation of the subsurface, enabling reliable hydrocarbon exploration and resource management.