Abstract：The quality of static corrections is one of key factors,which directly affects the stack results.Land seismic exploration pays more attention to static corrections,while offshore seismic survey does not.Actually,the relief of cable caused by sea resulted in time-shift in seismic records is not be neglected.Based on the criterion of maximum stack energy and correlation technique,the paper presented a set of static corrections aimed at offshore seismic data.The theoretical model test showed that the demand of offshore high-resolution seismic exploration can't be met when height of wave is greater than 0.3m.Therefore,the paper presented three static corrections methods that remove the influence of sea.The practice showed that the method is effective method for improving the resolution of offshore seismic exploration.
