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Parallel and numerical issues of the edge finite element method for 3D controlled-source electromagnetic surveys

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Název: Parallel and numerical issues of the edge finite element method for 3D controlled-source electromagnetic surveys
Autoři: Castillo Reyes, Octavio, de la Puente Álvarez, Josep, Puzyrev, Vladimir, Cela Espín, José M.
Přispěvatelé: Barcelona Supercomputing Center
Informace o vydavateli: IEEE
Rok vydání: 2015
Sbírka: Universitat Politècnica de Catalunya, BarcelonaTech: UPCommons - Global access to UPC knowledge
Témata: Àrees temàtiques de la UPC::Enginyeria electrònica, Parallel computer programs, Geophysical instruments, 3D modeling, Parallel computing, Share memory, Exploration geophysics, Edge-based finite element, Supercomputadors, Visualització tridimensional (Informàtica), Electromagnetisme--Mesuraments
Popis: This paper deals with the most relevant parallel and numerical issues that arise when applying the Edge Element Method in the solution of electromagnetic problems in exploration geophysics. In this sense, in recent years the application of land and marine controlled-source electromagnetic (CSEM) surveys has gained tremendous interest among the offshore exploration community. This method is especially significant in detecting hydrocarbon in shallow/deep waters. On the other hand, in Finite Element Methods for solving electromagnetic field problems, the use of Edge Elements has become very popular. In fact, Edge Elements are often said to be a cure to many difficulties that are encountered (particularly eliminating spurious solutions) and are claimed to yield accurate results. CSEM, linear vectorial edge basis functions and its implementation on unstructured tetrahedral meshes are discussed. The use of it’s kind of discretisation enables the representation of complex geological structures and allows local refinement in order to improve the solution’s accuracy. A parallel shared memory approach is proposed to meet the high computational cost of EM modeling. Performance results and an convergence study are presented in order to validate our numerical method. ; This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 644202. Authors gratefully acknowledge the support from the Mexican National Council for Science and Technology (CONACYT). ; This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 644202. Authors gratefully acknowledge the support from the Mexican National Council for Science and Technology (CONACYT). ; Peer Reviewed ; Postprint (author's final draft)
Druh dokumentu: conference object
Popis souboru: 6 p.; application/pdf
Jazyk: English
Relation: https://ieeexplore.ieee.org/document/7362921/; info:eu-repo/grantAgreement/EC/H2020/644202/EU/Geophysical Exploration using Advanced GAlerkin Methods/GEAGAM; http://hdl.handle.net/2117/85912
DOI: 10.1109/ICCSAT.2015.7362921
Dostupnost: http://hdl.handle.net/2117/85912
https://doi.org/10.1109/ICCSAT.2015.7362921
Rights: Open Access
Přístupové číslo: edsbas.DA6176B4
Databáze: BASE
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  Data: Parallel and numerical issues of the edge finite element method for 3D controlled-source electromagnetic surveys
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  Data: <searchLink fieldCode="AR" term="%22Castillo+Reyes%2C+Octavio%22">Castillo Reyes, Octavio</searchLink><br /><searchLink fieldCode="AR" term="%22de+la+Puente+Álvarez%2C+Josep%22">de la Puente Álvarez, Josep</searchLink><br /><searchLink fieldCode="AR" term="%22Puzyrev%2C+Vladimir%22">Puzyrev, Vladimir</searchLink><br /><searchLink fieldCode="AR" term="%22Cela+Espín%2C+José+M%2E%22">Cela Espín, José M.</searchLink>
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  Data: Barcelona Supercomputing Center
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  Data: This paper deals with the most relevant parallel and numerical issues that arise when applying the Edge Element Method in the solution of electromagnetic problems in exploration geophysics. In this sense, in recent years the application of land and marine controlled-source electromagnetic (CSEM) surveys has gained tremendous interest among the offshore exploration community. This method is especially significant in detecting hydrocarbon in shallow/deep waters. On the other hand, in Finite Element Methods for solving electromagnetic field problems, the use of Edge Elements has become very popular. In fact, Edge Elements are often said to be a cure to many difficulties that are encountered (particularly eliminating spurious solutions) and are claimed to yield accurate results. CSEM, linear vectorial edge basis functions and its implementation on unstructured tetrahedral meshes are discussed. The use of it’s kind of discretisation enables the representation of complex geological structures and allows local refinement in order to improve the solution’s accuracy. A parallel shared memory approach is proposed to meet the high computational cost of EM modeling. Performance results and an convergence study are presented in order to validate our numerical method. ; This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 644202. Authors gratefully acknowledge the support from the Mexican National Council for Science and Technology (CONACYT). ; This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 644202. Authors gratefully acknowledge the support from the Mexican National Council for Science and Technology (CONACYT). ; Peer Reviewed ; Postprint (author's final draft)
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  Data: https://ieeexplore.ieee.org/document/7362921/; info:eu-repo/grantAgreement/EC/H2020/644202/EU/Geophysical Exploration using Advanced GAlerkin Methods/GEAGAM; http://hdl.handle.net/2117/85912
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  Data: 10.1109/ICCSAT.2015.7362921
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  Data: http://hdl.handle.net/2117/85912<br />https://doi.org/10.1109/ICCSAT.2015.7362921
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        Value: 10.1109/ICCSAT.2015.7362921
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