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Abstract

Summary

This study analyzes the time-lapse responses in the reservoir stimulation volume (SRV) before and after hydraulic fracturing through three-dimensional magnetotelluric (MT) numerical simulations and inversions. The pre- and post-fracturing states of an enhanced geothermal model are used to analyze the sensitivity of time-lapse monitoring. For the forward modeling, the three-dimensional finite element method is used to simulate the time-lapse response before and after fracturing, and the results are well analyzed. While the L-BFGS optimization algorithm is employed to perform separate inversions for different stages, and the differences in the inverted models are analyzed as the results of time-lapse inversion. This results demonstrate that time-lapse forward response can better qualitatively analyze the spatial distribution of SRV. At the same time, the time-lapse inversion results we defined can track the boundaries of SRV more effectively compared to separate inversions.

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/content/papers/10.3997/2214-4609.202572101
2025-05-13
2026-02-08

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References

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/content/papers/10.3997/2214-4609.202572101
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3D Time-Lapse Magnetotelluric Modeling and Inversion of Hydraulic Fracturing: Synthetic Model Studies
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.202572101
/content/papers/10.3997/2214-4609.202572101
/content/papers/10.3997/2214-4609.202572101
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