HPC Geophysical Electromagnetics: A Synthetic VTI Model with Complex Bathymetry

Octavio Castillo-Reyes, Josep de la Puente and José María Cela
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Octavio Castillo-Reyes: Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain
Josep de la Puente: Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain
José María Cela: Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain

Energies, 2022, vol. 15, issue 4, 1-12

Abstract: We introduce a new synthetic marine model for 3D controlled-source electromagnetic method (CSEM) surveys. The proposed model includes relevant features for the electromagnetic geophysical community such as large conductivity contrast with vertical transverse isotropy and a complex bathymetry profile. In this paper, we present the experimental setup and several 3D CSEM simulations in the presence of a resistivity unit denoting a hydrocarbon reservoir. We employ a parallel and high-order vector finite element routine to perform the CSEM simulations. By using tailored meshes, several scenarios are simulated to assess the influence of the reservoir unit presence on the electromagnetic responses. Our numerical assessment confirms that resistivity unit strongly influences the amplitude and phase of the electromagnetic measurements. We investigate the code performance for the solution of fundamental frequencies on high-performance computing architectures. Here, excellent performance ratios are obtained. Our benchmark model and its modeling results are developed under an open-source scheme that promotes easy access to data and reproducible solutions.

Keywords: electromagnetic geophysical; numerical simulations; high-order methods; tailored meshes; HPC (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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