G124 CCSにおける浮力駆動CO_2の数値解析(OS-9: エネルギー・CO_2削減(2))

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  • G124 A numerical study of lbuoyancy-drivent CO_2 in CCS

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CCS is considered as an effective technology to reduce CO_2 emissions into the atmosphere. Geological sequestration is an immediately available and technologically feasible method, however, upward migration of CO_2 is caused by buoyance. The evaluation of the storage site and the assessment of CO_2 leakage risks and storage costs are needed. To clarify the behavior of CO_2 migration, we studied fundamental liquid CO_2/water two-phase flow in a porous media. One dimensional distribution of CO_2 saturation and its time evolution were simulated. Necessity of considering the pressure loss in both phases was discussed.

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