3626 MRIによる岩石内可視化に基づいたCO_2地中隔離における二相流動現象の解明(S51 温室効果ガス排出抑制技術)

概要

論文の詳細を見る
This paper describes experimental research on two-phase flow of supercritical CO_2 and water in a Berea sandstone core. We used a magnetic resonance imaging (MRI) technique to directly visualize the distribution of supercritical CO_2 injected into the sandstone core containing water. In-situ saturation distributions were successfully visualized under the temperature and pressure conditions corresponding to the aquifers at the depth of about 900m with a projection method every 10 seconds. A new coreflood interpretation method proposed by Good field et al. was applied to in-situ saturation data to evaluate two-phase flows in sandstone directly. We have experimentally demonstrated that capillary dispersion rate could be evaluated as a function of water saturation independent of viscosity and buoyancy.
一般社団法人日本機械学会の論文
2005-09-18