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Spherical transmission wave characteristic analysis method and computer readable storage medium

A characteristic analysis and spherical wave technology, applied in the field of seismic exploration, can solve problems such as the inability to develop accurate seismic exploration methods and technologies

Active Publication Date: 2020-04-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that there is no corresponding research on the transmission characteristics of spherical waves, so it is impossible to develop more accurate seismic exploration methods based on point sources

Method used

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  • Spherical transmission wave characteristic analysis method and computer readable storage medium
  • Spherical transmission wave characteristic analysis method and computer readable storage medium
  • Spherical transmission wave characteristic analysis method and computer readable storage medium

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Embodiment 1

[0040] In order to solve the technical problems existing in the prior art, an embodiment of the present invention provides a method for analyzing the characteristics of spherical transmission waves.

[0041] figure 1 It shows a schematic diagram of an acoustic medium model in a spherical transmission wave characteristic analysis method according to an embodiment of the present invention; figure 2 It shows a schematic flow chart of a spherical transmission wave characteristic analysis method according to an embodiment of the present invention; refer to figure 1 with figure 2 , the method for analyzing the characteristics of spherical transmission waves according to the embodiment of the present invention includes the following steps.

[0042] Step S101, calculating the transmitted spherical wave field of the receiving point based on the acoustic medium model.

[0043]In the process of seismic exploration, since the underground to be explored includes multiple layers of med...

Embodiment 2

[0076] In order to solve the technical problems existing in the prior art, an embodiment of the present invention provides a computer-readable storage medium.

[0077] The computer-readable storage medium of this embodiment stores a computer program therein, and when the computer program is executed by a processor, the steps in the method for analyzing the characteristics of a spherical transmission wave of the above-mentioned embodiment are implemented.

[0078] It should be noted that, the specific implementation steps of the collection trace evaluation method of the specific observation system refer to the first embodiment, which will not be repeated here.

[0079] Applying the computer-readable storage medium provided by the embodiment of the present invention, by setting a wave field that is set to be the same as the transmission path of the spherical wave transmission wave field as the virtual source incident wave field, to eliminate the spherical diffusion effect of the ...

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Abstract

The invention discloses a spherical transmission wave characteristic analysis method and a computer readable storage medium. The method comprises the following steps of calculating a spherical wave transmission wave field of a receiving point based on an acoustic medium model; calculating a virtual seismic source incident wave field of the receiving point, wherein the virtual seismic source incident wave field is set to be the same as a spherical wave transmission wave field in propagation path; calculating a spherical wave transmission coefficient according to the spherical wave transmissionwave field and the virtual seismic source incident wave field; and analyzing the spherical wave characteristics according to the spherical wave transmission coefficient. According to the invention, the spherical wave transmission characteristics are analyzed through the calculated spherical wave transmission coefficient, so that the propagation characteristics and rules of the spherical waves in the medium are better researched and analyzed based on the spherical wave theory of the point source, a more accurate seismic exploration method technology is further developed, and the method has thevery important theoretical value and practical significance for the spherical wave theory of the point source.

Description

technical field [0001] The invention relates to the technical field of seismic exploration, in particular to a spherical transmission wave characteristic analysis method and a computer-readable storage medium. Background technique [0002] At present, most seismic processing and interpretation methods and technologies are based on plane wave theory, such as deconvolution technology, pre-stack AVO or AVA analysis, post-stack impedance inversion, etc. The description of wavefield reflection and transmission characteristics by plane wave theory is based on the current One of the most important theoretical foundations of seismic exploration—Zoeppritz equation or its linear approximation. However, the actual field seismic acquisition uses a point source, which excites spherical waves instead of plane waves. Therefore, in order to further develop more accurate seismic exploration methods and technologies, it is of great theoretical value and practical significance to study and an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/36G01V1/30
CPCG01V1/307G01V1/362
Inventor 李京南朱童马灵伟
Owner CHINA PETROLEUM & CHEM CORP
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