Abstract

Geomechanical assessment is a very vital step in geological CO2 storage project to minimize the potential risk for CO2 leakage through fracture pathways and fault re-activation caused by CO2 injection. A good monitoring system of geomechanical properties such as in-situ stress, rock stiffness and strength could actually control the potential CO2 leakage pathways. Moreover, a safe and successful storage practice requires wise selection of suitable wells, especially in mature oil field.