Abstract：Based on the propagation law of the interference wave from the drilling site and its presentation characteristics,a new interference wave suppression method was proposed in this paper,in which the drilling interference was picked up first in shot domain and then the regional static correction was conducted.The exact workflow can be expressed below:at first an interference wave curve for a time interval in the single shot record in which the drilling interference exists was picked up,the static correction values for each trace can be obtained by subtracting the minimum value from the picked-up value of the interference wave curve,the static correction flatten processing for the interference wave curve was conducted by using regional static correction values,then F-K filtering method was utilized to attenuate the flatten seismic interference wave,at last the reverse time-shift correction was conducted to obtain the de-noised single shot records.The theoretical analysis and field data processing results show that the method does not need to know the frequency and the amplitude of the drilling interference,it is single,practical and accurate,it has small impact to effective reflection wave,its denoising effect is better than random noise suppression method and notching method,it could better meet the need of high fidelity and high resolution requirement in seismic data processing for lithology identification purpose in oil exploration.
