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oa Curvilinear Spectral Elements Application for Sonic Logging Forward Modeling
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Geomodel 2017, Sep 2017, Volume 2017, p.1 - 6
Abstract
The interpretation of sonic well logging data is a challenging problem for researches in the oil industry. A fast and accurate numerical method is needed to get the cleat picture of the physics of wave propagation in complex geological surroundings with the presence of strong discontinuity of fluid-solid interface. The Spectral Element modeling allows to solve efficiently the 3D dynamic wave propagation problems with complex physics. For sonic logging problems together with appropriate choice of spatial mesh step size the correct approximation of borehole geometry affects the accuracy of the numerical solution. The goal of this work is to extend the spectral element method to deal with the curvilinear elements and to show its addition value for the mesh construction, approximation of the geometry and increasing the accuracy of numerical solutions.