Parallel Simulation of 3D Wave Propagation by Domain Decomposition

Galina Reshetova, Vladimir Tcheverda, Dmitry Vishnevsky

The Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of the RAS, Russia.
The Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, Russia.

DOI: 10.4236/jamp.2013.14002                

Abstract

In order to perform large scale numerical simulation of wave propagation in 3D heterogeneous multiscale viscoelastic media, Finite Difference technique and its parallel implementation based on domain decomposition is used. A couple of typical statements of borehole geophysics are dealt with—sonic log and cross well measurements. Both of them are essentially multiscales, which claims to take into account heterogeneities of very different sizes in order to provide reliable results of simulations. Locally refined spatial grids help us to avoid the use of redundantly tiny grid cells in a target area, but cause some troubles with uniform load of Processor Units involved in computations. We present results of scalability tests together with results of numerical simulations for both statements performed for some realistic models.

Keywords

Seismic Wave propagation; Sonic Log; Numerical Simulation; Domain Decomposition

Conflicts of Interest

The authors declare no conflicts of interest.

References

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