Seismic wave data separation method, 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: 2020-06-09
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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

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Embodiment Construction

[0076] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0077] Before explaining the embodiment of the present invention in detail, the nouns, application scenarios, and system architecture involved in the embodiment of the present invention are explained respectively.

[0078] First, the nouns involved in the embodiments of the present invention are introduced.

[0079] Depth domain post-stack seismic wave data volume

[0080] Depth-domain post-stack seismic wave data volume is obtained by processing the collected seismic wave propagation velocity data in the formation through static correction, dynamic correction, stacking and migration, etc., which can reflect the relationship between seismic wave amplitude and formation depth. relational seismic wave data volume.

[0081] heat con...

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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 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 are elastic waves generated from the source and radiated to the surroundings. The seismic waves at the interface of layered strata with simple structures will reflect regularly, while the seismic waves at the interface of massive strata with complex structures will scatter randomly. Therefore, the collected seismic wave data usually includes reflected wave data and scattering data. wave data. In practical applications, seismic wave data can be imaged and processed to obtain seismic wave data imaging, and then geological structures can be studied based on seismic wave data imaging. However, when performing imaging processing on seismic wave data including reflected wave data and scattered wave data, reflected wave imaging formed based on reflected wave data a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 陈可洋
Owner PETROCHINA CO LTD
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