What is it about?
We present an efficient and accurate numerical algorithm for the simulation of sonic logging experiments. The basis of the approach is a heterogeneous spectral element method implemented on multi‐GPU applied to acoustic‐elastic wave equation. The approach was designed to simulate wave propagation in 3D arbitrary anisotropic elastic media with attenuation for a constant Q via standard linear solid using the τ method. Due to the use of an unstructured grid, the spectral element algorithm enables handling tools in a fluid‐filled borehole with surrounding geological models of big complexity. We compare results with analytical solutions and discuss results and computational efforts of simulation for arbitrary anisotropic inhomogeneous models.
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Why is it important?
This algorithm based on 3D anisotropic viscoelastic SEM is suitable for GPU acceleration, making it quite efficient in terms of computations.
Perspectives
Using the advantages of the proposed modeling scheme, we intend to use simulations with different sources (monopole, dipole, quadrupole) to optimize the configuration of downhole sonic measurements and the design of logging tools for realistic environments.
Dr. Anatoly Victor Vershinin
Moskovskij gosudarstvennyj universitet imeni M V Lomonosova
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This page is a summary of: 3D spectral element method simulation of sonic logging in anisotropic viscoelastic media, January 2011, Society of Exploration Geophysicists,
DOI: 10.1190/1.3628113.
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