Application of 3D source deghosting and designature to deep-water ocean bottom node data

Ocean bottom node (OBN) data by nature have a broader bandwidth; however, the presence of source-side ghosts can reduce the useful frequency range and therefore damage seismic resolution. We demonstrate the benefits of 3D deghosting for OBN data from the Gulf of Mexico (GOM). By effectively removing ghost energy using 3D deghosting, images with a wider spectrum and a better signal-to-noise ratio (S/N) can be achieved. We also applied 3D angle-dependent source deghosting and designature to further increase the bandwidth.