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Wave field simulation method and device for various seismic sources based on moment tensor

A technology of wave field simulation and seismic source wave field, which is applied in the field of petroleum physical exploration, can solve problems such as poor adaptability, inability to meet multiple seismic sources, complex medium wave field simulation, and affecting the accuracy of seismic data processing, so as to improve adaptability Effect

Active Publication Date: 2018-12-11
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

However, the seismic data processing methods in the prior art have poor adaptability and cannot satisfy the wave field simulation of various seismic sources and complex media, which affects the accuracy of seismic data processing

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  • Wave field simulation method and device for various seismic sources based on moment tensor
  • Wave field simulation method and device for various seismic sources based on moment tensor
  • Wave field simulation method and device for various seismic sources based on moment tensor

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0031] Microseismic monitoring can refer to the monitoring of seismic waves generated by rock fractures caused by changes in the underground stress field during production processes such as construction, civil engineering, hydraulic fracturing, and reservoir reconstruction, and imaging and interpretation of cracks, so as to analyze stratum...

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Abstract

The invention provides a wave field simulation method and device for various seismic sources based on a moment tensor. The wave field simulation method comprises the steps of constructing a staggereddifference scheme of a three-dimensional elastic wave equation by using a moment tensor elastic wave equation forward modeling method; inputting a velocity model of a target area into the staggered difference scheme of the three-dimensional elastic wave equation, and obtaining a three-dimensional elastic wave field simulation difference equation of the target area; and loading a target seismic source into the three-dimensional elastic wave field simulation difference equation of the target area by using a seismic source theory of the moment tensor, and performing field wave simulation of the seismic data. Wave field simulation of different media and different seismic sources is realized by using each embodiment in the invention, and the seismic data processing accuracy is improved.

Description

technical field [0001] The application belongs to the technical field of petroleum physical exploration, and in particular relates to a method and device for simulating multiple source wave fields based on moment tensor. Background technique [0002] One of the important purposes of seismic data processing is to improve the signal-to-noise ratio and resolution of the data after various processing of the field seismic data, so as to facilitate the later interpretation of seismic data. The wave field of the seismic wave can be obtained by performing wave field simulation on the seismic data, which can provide a theoretical basis for the description and characteristics of fractures, and lay a foundation for the subsequent rapid identification of source types, fracture prediction and interpretation. [0003] In the prior art, the wave field simulation of seismic data is mainly divided into two categories: numerical simulation of analytical solution and numerical simulation of nu...

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Application Information

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IPC IPC(8): G01V1/28
CPCG01V1/282
Inventor 王润秋江勇勇李会俭陈筱青郝学兵李雨亭崔雪鹏任立伟
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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