The Key Technology of Offshore Multiple Azimuth Seismic Data Processing

Multi-azimuth , wide azimuth and comprehensive seismic data could increase illumination in data acquisition , more completion of information of recorded wave field would be created for improving the effect of seismic data imaging.But there was no a set of more matured multi-azimuth seismic data processing techniques at present.In combination with actual data processing , the key technology of offshore multi-azimuth seismic data processing was discussed. The results show that both the matching processing of multi-azimuth seismic data and the time migration of pre-stack asymmetrical travel time technology are the key of multi-azimuth seismic data processing.Multi-azimuth acquisition data can effectively improve the underground illumination and imaging accuracy of seismic data at the complicated structure areas , moreover , comparing to the acquisition method of the multi-ship wide azimuth , the acquisition cost can be greatly reduced.