Application of the grid-characteristic method on unstructured tetrahedral meshes to the solution of direct problems in seismic exploration of fractured layers

被引：1

作者：

Biryukov, V. A. ^{[1
]}

Muratov, M. V. ^{[1
]}

Petrov, I. B. ^{[1
]}

Sannikov, A. V. ^{[1
]}

Favorskaya, A. V. ^{[1
]}

机构：

[1] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Oblast, Russia

来源：

COMPUTATIONAL MATHEMATICS AND MATHEMATICAL PHYSICS | 2015年 / 55卷 / 10期

基金：

俄罗斯科学基金会;

关键词：

grid-characteristic method; unstructured tetrahedral meshes; seismic exploration; fractured media; seismic waves; numerical simulation; high-performance computer systems; parallel algorithms;

D O I：

10.1134/S0965542515100073

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Seismic responses from fractured geological layers are mathematically simulated by applying the grid-characteristic method on unstructured tetrahedral meshes with the use of high-performance computer systems. The method is intended for computing complicated spatial dynamical processes in complex heterogeneous media and is characterized by exact formulation of contact conditions. As a result, it can be applied to the simulation of seismic exploration problems, including in regions with a large number of inhomogeneities, examples of which are fractured structures. The use of unstructured tetrahedral meshes makes it possible to specify geological cracks of various shapes and spatial orientations. As a result, problems are solved in a formulation maximally close to an actual situation. A cluster of computers is used to improve the accuracy of the computation by optimizing its duration.

引用

页码：1733 / 1742

页数：10

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