Percolation of Supercritical CO₂ in a Porous Medium Saturated with Water

• SUEKANE Tetsuya

  Tokyo Institute of Technology, Dept. of Energy Sciences

• OKADA Katsuhiro

  徳島大学工学部

Bibliographic Information

Other Title

• 水で飽和された多孔質への超臨界CO₂の浸透

Abstract

We experimentally investigated the effect of capillarity and buoyancy on non-wetting phase saturation after the drainage. Distributions of the NWP in porous media have been visualized by mean of microtomograhy at a pore-scale for a supercritical CO₂ and water system. In the case of the upward injection, gas saturation is low compared with the upward case, because the capillary fingering is enhanced by buoyancy. Gas saturation increases with the capillary number because of the pressure gradient along the porous medium. In the case of the downward injection, the fingering is suppressed by buoyancy. As a result, the high gas saturation is achieved over the wide range of capillary number. The gas saturation decrease slightly with the capillary number because of the instability associated with the injection flow rate. The combined dimensionless group of Bond number and capillary number is introduced to correlate with the gas saturation obtained for the nitrogen and water system.

Journal

• TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B

  TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 79 (808), 2592-2596, 2013

  The Japan Society of Mechanical Engineers

Keywords

• Gas-Liquid Two-Phase Flow
• Porous Media
• Interfacial Phenomena
• Surface Tension
• Global Warming
• Carbon Dioxide Capture and Storage
• Capillary Fingering
• Buoyancy
• Gas Saturation
• X-Ray CT

Details

• CRID: 1390282681238932864
• NII Article ID: 130003386361
• DOI: 10.1299/kikaib.79.2592
• ISSN: 18848346
• ISSN: 03875016
• Web Site: https://www.jstage.jst.go.jp/article/kikaib/79/808/79_2592/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed