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

作者：Biryukov V A^*; Muratov M V; Petrov I B; Sannikov A V; Favorskaya A V

来源：Computational Mathematics and Mathematical Physics, 2015, 55(10): 1733-1742.

DOI：10.1134/S0965542515100073

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

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.

• 出版日期2015-10