Preliminary research on safety of induced seismicity at carbon sequestration sites

Geological carbon sequestration is a critical step towards achieving Taiwan's net-zero emissions by 2050. The issues of induced seismicity and the reactivation of fractures as potential leakage paths due to the injection of supercritical CO2 into geological formations must be thoroughly investigated to gain public acceptance for carbon sequestration sites. This study uses the Changhua Coastal Park pilot site to establish two geological models and develop corresponding numerical simulation techniques. It examines whether CO2 injection impacts the stability of adjacent blind fault. The numerical simulations, conducted with three-dimensional distinct element method software, calculate the influence range of pressure increments and compare the differences between the two geological models.