Fourier Neural Operator based surrogates for $CO_2$ storage in realistic geologies

• URL: http://arxiv.org/abs/2503.11031v2
• Date: Thu, 20 Mar 2025 15:44:45 GMT
• Title: Fourier Neural Operator based surrogates for $CO_2$ storage in realistic geologies
• Authors: Anirban Chandra, Marius Koch, Suraj Pawar, Aniruddha Panda, Kamyar Azizzadenesheli, Jeroen Snippe, Faruk O. Alpak, Farah Hariri, Clement Etienam, Pandu Devarakota, Anima Anandkumar, Detlef Hohl,
• Abstract summary: We develop a Neural Operator (FNO) based model for real-time, high-resolution simulation of $CO$ plume migration.<n>The model is trained on a comprehensive dataset generated from realistic subsurface parameters.<n>We present various strategies for improving the reliability of predictions from the model, which is crucial while assessing actual geological sites.
• Score: 57.23978190717341
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This study aims to develop surrogate models for accelerating decision making processes associated with carbon capture and storage (CCS) technologies. Selection of sub-surface $CO_2$ storage sites often necessitates expensive and involved simulations of $CO_2$ flow fields. Here, we develop a Fourier Neural Operator (FNO) based model for real-time, high-resolution simulation of $CO_2$ plume migration. The model is trained on a comprehensive dataset generated from realistic subsurface parameters and offers $O(10^5)$ computational acceleration with minimal sacrifice in prediction accuracy. We also explore super-resolution experiments to improve the computational cost of training the FNO based models. Additionally, we present various strategies for improving the reliability of predictions from the model, which is crucial while assessing actual geological sites. This novel framework, based on NVIDIA's Modulus library, will allow rapid screening of sites for CCS. The discussed workflows and strategies can be applied to other energy solutions like geothermal reservoir modeling and hydrogen storage. Our work scales scientific machine learning models to realistic 3D systems that are more consistent with real-life subsurface aquifers/reservoirs, paving the way for next-generation digital twins for subsurface CCS applications.

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