What question did this study set out to answer?

This study aims to analyze how cold CO2 injection affects geomechanical stability in reservoirs, particularly focusing on fault reactivation risks.

Geoscience Visual Presentation G05: Geomechanical responses of reservoirs to cold CO2 injection: implications for carbon capture and storage

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Randomized trial demonstrates geomechanical risks of CO2 injection in reservoirs, highlighting implications for safety.

This study aims to analyze how cold CO2 injection affects geomechanical stability in reservoirs, particularly focusing on fault reactivation risks.
Conducted a coupled poro-thermo-elastic analysis to assess the impacts of pore pressure and temperature on principal stresses.
Developed a P-T stability diagram to visualize the relationship between operational parameters and reactivation thresholds.
Findings reveal that pore pressure-focused analyses can inaccurately predict reactivation risks.
The P-T stability diagram enables better identification of safe operational envelopes without iterative analysis.

Zizhuo Xiang (2026) studied this question.

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