Research And Application Of 3D SRME Multiple Denoising Technology

3D SRME does not need to make some simple approximations to the underground medium.It is more consistent with the propagation of seismic wave field from theory and practice.In recent years,the exploitation of deep-sea resources has been upgraded to a national strategy,and the development of the oil and gas industry into the deep sea is imperative.More deep-sea data will be collected and processed in the future.An important characteristic of deep-sea data is the development of multiple anomaly,and the research and application of 3D SRME technology is a key problem that we must solve for the processing of deep-sea data.Based on the actual seismic data,this paper illustrates the theory of 3D multiple prediction.The calculation method and method theory of SRME are studied.The wave field expressions of Berkhout are used to derive the forward model.Through the foreplay,we can get the better matching effect from the multiple waves and the multiple waves from the prediction.The prediction and elimination of multiple waves are studied in time domain and frequency domain respectively.The correctness and efficiency of the two methods are compared in detail.It is proved that the two methods are effective to remove multiple waves.In operation efficiency,the efficiency in frequency domain and the efficiency in time domain are improved.In this paper,the seismic records of the receiving channel are eliminated by the model,and the data after the elimination of multiple waves are superimposed.By comparing the elimination effects of multiple waves in the overlay section,the 3D SRME method theory has a better effect on the removal of the model,and can eliminate the related multiple waves in the model,making the effective information more prominent.The above work,combined with a practical seismic data test in the equatorial Guinée,has formed a series of suppression and removal techniques for multiple waves related to the surface of the ocean,providing a reliable and perfect method for the deep sea exploration and processing WOR.