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High-Resolution Geomechanics Modelling of Thermal and Hydraulic Effects on Wellbore Integrity and Caprock Stability During CO2 Injection

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High-resolution modeling identified increased risks of microcracks near the wellbore due to temperature changes.
Thermal impact from CO2 injection can extend 100 m laterally and 20 m into caprock, compromising integrity.
Mechanical deformation from thermal and hydraulic loads significantly affects wellbore completion and caprock stability.
Using materials with higher resistance to CO2 can help mitigate risks associated with mechanical degradation.

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High-resolution simulations reveal risks to wellbore integrity and caprock stability during CO2 injection, suggesting improved modeling is crucial.

Mohamad-Hussein et al. (2025) studied this question.

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High-resolution simulations reveal risks to wellbore integrity and caprock stability during CO2 injection, suggesting improved modeling is crucial.