Multiple Wave Suppression Method For Well Site Data

In order to clarify the shallow structure of the well site and its influence on the drilling engineering,the air gun source is used in the shallow seismic exploration in the marine engineering survey.The seismic data collected from the well site need to be processed in real time.Multiple seismic suppression in well site seismic data is the key to the success of shallow seismic exploration in marine engineering survey.This paper focuses on the research of multiple wave expansion in the wellsite.The well site seismic exploration has the characteristics of short offset,and the multiple wave suppression method in the conventional seismic data processing is not significant when it is applied to the multiple wave processing of the well field seismic data.In this paper,the characteristics of multiple wave of seismic data in well site are studied,and multiple wave suppression experiments are carried out in the well field.Through comparison and analysis,the method and process of multiple wave suppression for the well field are determined,and the actual production has achieved obvious effect.Firstly,the type,characteristics and influence of multiple waves in well site are analyzed,and multiple waves in well site seismic data can be identified effectively.On this basis,the principle of multiple wave suppression,deconvolution and SRME(surface-related multiple elimination)method based on the difference of time difference and dip angle is analyzed,and the multiple wave suppression test is carried out on the actual seismic data of the well field,which effectively suppress multiple waves and form the technological process of multiple wave suppression in the well field.