Prestack inversion of anisotropic coefficients and its application in fracture prediction

XIE Rui; YAN Jian-Guo; CHEN Qi

doi:10.11720/wtyht.2022.1369

2022 Vol. 46, No. 4

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XIE Rui, YAN Jian-Guo, CHEN Qi. 2022. Prestack inversion of anisotropic coefficients and its application in fracture prediction. Geophysical and Geochemical Exploration, 46(4): 968-976. doi: 10.11720/wtyht.2022.1369

Citation:

XIE Rui, YAN Jian-Guo, CHEN Qi. 2022. Prestack inversion of anisotropic coefficients and its application in fracture prediction. Geophysical and Geochemical Exploration, 46(4): 968-976. doi: 10.11720/wtyht.2022.1369

Prestack inversion of anisotropic coefficients and its application in fracture prediction

Geophysical College,Chengdu University of Technology,Chengdu 610059, China

Received Date: 21 August 2021

Revised Date: 20 August 2022

Publish Date: 17 August 2022

Abstract

Abstract

The forward modeling of wave field response characteristics of wide-azimuth seismic data shows that the reflection coefficient has apparent azimuth anisotropy when the P-waves propagate in underground geologic bodies.It has become a research hotspot at home and abroad to make a fracture prediction using azimuth anisotropy.This study analyzed the response characteristics of the changes in seismic P-waves with azimuth using forward modeling.Based on the analytical results combined with the relationship between the anisotropy parameters of fluid-bearing fractures proposed by Bakulin et al.,this study approximately simplified the Ruger formula,deduced the equation between anisotropic parameter γ that can be used to characterize fracture development and reflection coefficient,and proposed a fracture prediction method based on anisotropic parameter inversion.The validity and applicability of the method have been proven using theoretical models and practical data application.Therefore,this study provides a feasible method and technology for fracture prediction using wide-azimuth prestack seismic data.
- forward modeling of responses /
- fracture prediction /
- wide-azimuth seismic data /
- anisotropic parameter /
- prestack inversion

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References

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