Accelerated Beam Migration Imaging for Shallow OBN Data

Integrating Fast Beam Migration (FBM) with tomography-based velocity updates significantly accelerates subsurface imaging and handles complex geological structures. This study successfully applied FBM to dense Ocean Bottom Nodes (OBN) seismic data processed with a fast-track approach. Optimizing beam source and receiver geometries with different maximum offsets effectively allowed imaging both shallow and deep structures within area of interest. The resulting reflectivity images demonstrate FBM’s efficiency and robustness for subsurface imaging in challenging data scenarios, with future velocity model refinement planned using fast beam tomography.