Seismic data processing method for suppressing exogenous interference waves and storage medium

Abstract

The invention discloses a seismic data processing method for suppressing exogenous interference waves and a storage medium. The seismic data processing method for suppressing the exogenous interference waves comprises the following steps of: inputting initial seismic data; preprocessing the initial seismic data to obtain seismic data to be processed; obtaining coordinates of at least four points of the event of the exogenous interference wave and corresponding travel time; based on the propagation equation of the exogenous interference waves, utilizing the coordinates of the at least four points and the corresponding travel time to construct an equation set; solving the equation set formed by the at least four equations of the at least four points to obtain the coordinates of the exogenousinterference waves and the propagation speed of the exogenous interference waves; and processing the seismic data to be processed according to the coordinates of the exogenous interference waves andthe propagation speed of the exogenous interference waves so as to suppress the exogenous interference waves. According to the seismic data processing method for suppressing the exogenous interferencewaves and the storage medium, the source point position of the exogenous interference waves can be automatically obtained, and the suppression effect of the exogenous interference waves can be betterimproved.

Description

technical field [0001] The invention belongs to the technical field of seismic data processing for geophysical exploration, and in particular relates to a seismic data processing method and a storage medium for suppressing external interference waves. Background technique [0002] During seismic exploration data collection and construction, there are often other activities in the construction area that cannot be stopped, such as oil wells being developed, drilling operations being drilled, windmills in normal operation, etc. The vibrations caused by such activities will also be recorded in the earthquake In the exploration data, it becomes the external interference wave in the seismic exploration data, which must be suppressed in the seismic exploration data processing in order to better analyze the seismic data. Suppressing the external interference wave requires accurate source position of the external interference wave. Therefore, calculating the exact source position of ...

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Problems solved by technology

This method requires the data processor to have relatively strong professional technical ability, the process is time-consuming and laborious, and the source point of the external source interference wave can only be located between two adjacent receiving channels and two adjacent receiving lines. For two-dimensional seismic For 3D seismic data with relatively large data or line spacing, the positioning error of this method in the direction of the vertical survey line is relatively large, which affects the accuracy of the source point position of the external source interference wave and affects the suppression effect of the external source interference wave

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