0541 CO_2地下貯留における岩石内流動のMRI計測(S52-2 温室効果ガス排出抑制技術(2),S52 温室効果ガス排出抑制技術)

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  • 0541 Study on the flow in sandstones for CO_2 geological storage by means of MRI

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This paper describes experimental research on application of magnetic resonance imaging(MRI) to the measurement of two-phase flow of supercritical carbon dioxide (CO_2) and water in a Berea sandstone which is the phenomena encountered in CO_2 geological storage. In-situ water saturation distributions in a Berea sandstone core were successfully visualized at conditions that simulate those at 700-1000-m depths in an aquifer. By applying a coreflood interpretation method to our measured data, we evaluate the effect of viscosity, capillary pressure, and buoyancy on two-phase flow in sandstone.

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