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DOE OSTI · 1886999

Physically rigorous reduced-order flow models of fractured subsurface environments without explosive computational cost

Beskardes, Gungor Didem·Weiss, Chester J.·Darrh, Andrea·Kuhlman, Kristopher L.·Chang, Kyung Won
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Abstract

Fractured media models comprise discontinuities of multiple lengths (e.g. fracture lengths and apertures, wellbore area) that fall into the relatively insignificant length scales spanning millimeter-scale fractures to centimeter-scale wellbores in comparison to the extensions of the field of interest, and challenge the conventional discretization methods imposing highly-fine meshing and formidably large numerical cost. By utilizing the recent developments in the finite element analysis of electromagnetics that allow to represent material properties on a hierarchical geometry, this project develops computational capabilities to model fluid flow, heat conduction, transport and induced polarization in large-scale geologic environments that possess geometrically-complex fractures and man-made infrastructures without explosive computational cost. The computational efficiency and robustness of this multi-physics modeling tool are demonstrated by considering various highly-realistic complex geologic environments that are common in many energy and national security related engineering problems.

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Beskardes, Gungor Didem, Weiss, Chester J., Darrh, Andrea, Kuhlman, Kristopher L., Chang, Kyung Won. 2022-09-01. Physically rigorous reduced-order flow models of fractured subsurface environments without explosive computational cost. https://doi.org/10.2172/1886999

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