Seismic wave data separation method and device and storage medium

Abstract

The invention discloses a seismic wave data separation method and device and a storage medium, and belongs to the technical field of seismic exploration. The seismic wave data separation method comprises the steps of obtaining a first depth-domain post-stack seismic wave data volume transformed from an original pre-stack seismic wave data volume of a target work area, performing iterative processing on the first depth-domain post-stack seismic wave data volume according to a heat conduction transformation equation which is deduced based on a heat conduction method and used for describing the variation of depth-domain post-stack seismic wave data in the target work area along the time so as to obtain a depth-domain post-stack reflected wave data volume, and determining the difference between the first depth-domain post-stack seismic wave data volume and the depth-domain post-stack reflected wave data volume as a depth-domain post-stack scattered wave data volume of the target work area.That is to say, scattered wave data can be separated from the seismic wave data by performing iterative processing on the depth-domain post-stack seismic wave data volume according to the heat conduction transformation equation, the accuracy of a separation result is high, the separation process is simple, and the separation efficiency is high.

Description

Technical field [0001] The present invention relates to the technical field of seismic exploration, in particular to a seismic wave data separation method, device and storage medium. Background technique [0002] Seismic waves refer to elastic waves generated from the seismic source and radiated to the surroundings. At the interface of layered stratum with simple structure, the seismic wave will be reflected regularly, while at the interface of massive stratum with complex structure, the seismic wave will be scattered by the wave field. Therefore, the collected seismic wave data usually contains reflected wave data and scattering. Wave data. In practical applications, the seismic wave data can be imaged to obtain seismic wave data imaging, and then the geological structure can be studied based on the seismic wave data imaging. However, when performing imaging processing on seismic wave data including reflected wave data and scattered wave data, the reflected wave imaging formed...

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Problems solved by technology

[0006] The embodiment of the present invention provides a seismic wave data separation method, device and storage medium, which can be used to solve the problems of complicated calculation process and low separation efficiency when separating reflected wave data and scattered wave data in a seismic wave data volume in the related art

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