Study On Multiple Wave Suppression Techniques For Marine Seismic Data

Multiple wave interference is the most important type of interference waves in marine seismic data,which seriously reduces the quality of marine seismic data processing.It also affects the accuracy of seismic data interpretation and reservoir prediction.There are many types of multiples,complex causes,and various distribution characteristics,so it is difficult to use one method to suppress all types of multiples,although there are currently many ways to remove multiples.Based on the in-depth analysis of the basic principle and applicable conditions of the multiple waves suppression method,this paper combines the specific characteristics and geological requirements of the seismic data in the study area to suppress the multiple waves.Firstly,Surface Related Multiple Elimination(SRME)was used to suppress the near-trace multiples,and then the ?-p Predictive Deconvolution was used to suppress the short-cycle multiples.Finally,a high-resolution radon transform was used to suppress the remote trace multiples.The combination of the three methods effectively suppressed different types of multiple waves in the study area,which also improved the signal noise ratio and wave group relations of seismic data.