The Application of Accurate Seismic Processing in Shenhu Area

This article based on Shenhu Area's seismic data, in order to solve the problem of low imaging accuracy caused by rugged seafloor in the research area, this paper proposes a targeted treatment method: using combined multiple wave suppression technology to solve the problem of multiple wave attenuation in rugged seafloor, protruding the structural characteristics of middle and deep layers;using predictive deconvolution and zero phase processing technology to improve the resolution of shallow hydrate;using multiple iterative velocity analysis techniques to refine the accuracy of velocity analysis gradually, highlight the velocity reversal feature of hydrate.The final treatment results show that the targeted treatment technology proposed in this paper has achieved the expected results.The geophysical characteristics of hydrate related to BSR polarity reversal, amplitude blank zone and velocity reverse are clear, and the geological structural characteristics are clear such as faults, which are related to hydrate gas source and migration channel research.The result is helpful for interpretation experts to study hydrate enrichment and reservoir formation characteristics.