Seismic wave data separation method and device and storage medium

A data separation and seismic wave technology, applied in the field of seismic exploration, can solve problems such as low separation efficiency and complicated calculation process

Active Publication Date: 2019-01-01
PETROCHINA CO LTD +1
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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 co

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  • Seismic wave data separation method and device and storage medium
  • Seismic wave data separation method and device and storage medium
  • Seismic wave data separation method and device and storage medium

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Embodiment Construction

[0080] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0081] Before explaining the embodiments of the present invention in detail, the terms, application scenarios, and system architectures involved in the embodiments of the present invention will be explained separately.

[0082] First, introduce the terms involved in the embodiment of the present invention.

[0083] Depth domain post-stack seismic wave data volume

[0084] The depth-domain post-stack seismic wave data volume is obtained by processing the collected seismic wave propagation velocity data in the formation after static correction, dynamic correction, stacking and migration, etc., which can reflect the difference between seismic wave amplitude and formation depth. Relational seismic wave data volume.

[0085] Heat conduction method

[00...

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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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Application Information

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IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 陈可洋
Owner PETROCHINA CO LTD
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