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Elastic wave field separation method and device, storage medium and equipment

A separation method and elastic technology, applied in the field of seismic exploration data processing, can solve the problems of reducing imaging resolution and affecting the accuracy of geological interpretation results, and achieve the effect of improving accuracy and efficiency

Inactive Publication Date: 2018-06-22
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology

However, the interference between different waves in multi-wave seismic data reduces the imaging resolution, which seriously affects the accuracy of geological interpretation results

Method used

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  • Elastic wave field separation method and device, storage medium and equipment
  • Elastic wave field separation method and device, storage medium and equipment
  • Elastic wave field separation method and device, storage medium and equipment

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0034] figure 1 It is a schematic flowchart of the elastic wave field separation method according to an embodiment of the present invention. Such as figure 1As shown, the elastic wave field separation method of this embodiment may include:

[0035] Step S110: In the case of avoiding the singularity of the shear wave, obtain the polarization vector of the seismic wave pattern by solving the Kelvin-Christoffel equation;

[0036] Step S120: using simulated annealing to optimize the polarization vector of the seismic wave pattern;

[0037] Step S130: Perform elastic w...

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Abstract

The invention provides an elastic wave field separation method and device, a storage medium and equipment. The method comprises: with transverse wave singularity avoided, solving Kelvin-Christoffel equation to obtain a polarization vector of seismic waveform; using a simulated annealing method to optimize the polarization vector of seismic waveform; using the optimized polarization vector of seismic waveform to perform elastic wave field separation on a seismic vector wave field. The elastic wave field separation method and device, the storage medium and the equipment can provide improved wavefield separation precision and efficiency.

Description

technical field [0001] The invention relates to the technical field of seismic exploration data processing, in particular to an elastic wave field separation method, device, storage medium and equipment. Background technique [0002] Seismic exploration has been widely recognized in energy and mineral exploration. In particular, multi-wave seismic exploration has been greatly developed because of its characteristics of carrying rich underground information. However, the interference between different waves in multi-wave seismic data reduces the imaging resolution, which seriously affects the accuracy of geological interpretation results. In order to improve the imaging resolution, it is often necessary to properly separate the vector wave field. [0003] When the vector wavefield is separated based on polarization characteristics, the inevitable problem is how to project the wavefield to the corresponding polarization direction more accurately under the premise of ensuring ...

Claims

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Application Information

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IPC IPC(8): G01V1/36
Inventor 王之洋胡婷刘洪
Owner BC P INC CHINA NAT PETROLEUM CORP
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