1887

Abstract

Summary

Geological Carbon Storage (GCS) in deep saline aquifers is an essential technology for mitigating climate change. The injection of large volumes of CO2, often at temperatures lower than the in-situ reservoir conditions, induces complex coupled Thermo-Hydro-Mechanical (THM) processes that can affect the security of storage. This paper details the construction of a fully coupled 3D numerical model to simulate the injection of cold CO2 into a deep, layered saline aquifer. Using the open-source GEOS simulator, we model the interdependent effects of fluid flow, heat transfer, and geomechanics over a 10-year period, including a 5-year injection phase and a 5-year post-injection phase. The model investigates pressure buildup and thermal stress development effects to assess the geomechanical response of the reservoir and, critically, the integrity of the overlying caprock.

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/content/papers/10.3997/2214-4609.202521288
2025-10-27
2026-01-23
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References

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