The Usage of Grid-Characteristic Method in Seismic Migration Problems

Golubev, V. I.

doi:10.1007/978-3-030-06228-6_13

Cited by 22 publications

(3 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Forward modeling uses grid-characteristic numerical method, that demonstrated good quality of the numerical solution for various wave dynamics problems, including wave propagation in complex composite structures [21,22], classical seismic migration [23], wave propagation in a fractured [24] and multicomponent [25] geological media.…”

Section: Forward Modelingmentioning

confidence: 99%

Learning velocity model for complex media with deep convolutional neural networks

Stankevich,

Nechepurenko,

Shevchenko

et al. 2021

Preprint

View full text Add to dashboard Cite

The paper considers the problem of velocity model acquisition for a complex media based on boundary measurements. The acoustic model is used to describe the media. We used an open-source dataset of velocity distributions to compare the presented results with the previous works directly. Forward modeling is performed using the grid-characteristic numerical method. The inverse problem is solved using deep convolutional neural networks. Modifications for a baseline UNet architecture are proposed to improve both structural similarity index measure quantitative correspondence of the velocity profiles with the ground truth. We evaluate our enhancements and demonstrate the statistical significance of the results.

show abstract

Section: Forward Modelingmentioning

confidence: 99%

Learning velocity model for complex media with deep convolutional neural networks

Stankevich,

Nechepurenko,

Shevchenko

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Among recent works, one can highlight the work [7], devoted to the construction of a hybrid numerical method; and [8,9], in which a numerical method was constructed for calculating wave processes in a block medium with interacting structural elements. In paper [10], the grid-characteristic method was successfully generalized for inverse migration problems.…”

mentioning

confidence: 99%

Explicit-Implicit Schemes for Calculating the Dynamics of Layered Media with Nonlinear Conditions at Contact Boundaries

Никитин¹,

Golubev²

2021

J. Sib. Fed. Univ., Math. phys.

Self Cite

View full text Add to dashboard Cite

In this paper we consider the problem of dynamic loading of a deformable solid medium con- taining slip planes with nonlinear slip conditions on them. An explicit-implicit scheme was constructed for the numerical solution of the constitutive system of equations, which exactly reduces to correcting the stress tensor values after performing the elastic step. An implicit approximation of the constitutive relations containing a small parameter in the denominator of the nonlinear free term was used with the second order of the approximation. The correction procedure is applicable for those cases when the viscosity parameter of interlayers providing the sliding mode of the contact boundaries is not small. The solution of the problem of the seismic waves propagation in an inhomogeneous fractured geological massif in a two-dimensional case was obtained numerically

show abstract

“…Для её численного решения может быть успешно применён сеточно-характеристический численный метод [2,3] [4], упругих [5], слоистых и трещиноватых средах [6][7][8]. Он также был успешно применён для решения обратной задачи миграции [9]. В настоящей работе рассматривается задача шельфовой сейсмической разведки.…”

unclassified

Taking into account the fluid saturation of bottom sediments in marine seismic survey problem

Golubev

Shevchenko

Petrov

2019

Доклады Академии наук

View full text Add to dashboard Cite

The problem of the numerical simulation of the seismic response from the marine bottom is considered. Acoustic equations are used for the description of the water dynamic behavior. Bottom sediments are described with the porous fluid-filled medium. The Dorovsky model is used. The algorithm for solving all hyperbolic equation systems with the grid-characteristic method was proposed. The distinctive feature of this approach is the ability to set explicitly necessary contact conditions between media with different rheology.

show abstract

The Usage of Grid-Characteristic Method in Seismic Migration Problems

Cited by 22 publications

References 38 publications

Learning velocity model for complex media with deep convolutional neural networks

Learning velocity model for complex media with deep convolutional neural networks

Explicit-Implicit Schemes for Calculating the Dynamics of Layered Media with Nonlinear Conditions at Contact Boundaries

Taking into account the fluid saturation of bottom sediments in marine seismic survey problem

Contact Info

Product

Resources

About