A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner

Yasushi Kamata, Mitsutaka Sato, Shinji Ono, Takao Ebinuma, Jiro Nagao, Hideki Minagawa, Ryo Omura, Hideo Narita

研究成果: Conference article査読

抄録

To use methane hydrate as an energy resource, it is necessary to establish decomposition methods for efficiently extracting methane gas from the methane hydrate-bearing layer. A core holder was installed in a High-Speed X-ray CT scanner to observe the dissociation behavior of methane hydrate-bearing sediment. Artificial methane hydrate-bearing sediment was made and dissociated by the depressurization method. The pressure in the sediment decreased immediately, and the sediment temperature decreased in proportion to the dissociation pressure. The CT luminance value decreased with the decomposition because hydrates in the sediment pore space were replaced from hydrates with methane gases. This is an abstract of a paper presented at the 15th International Offshore and Polar Engineering Conference (Seoul, Korea 6/19/2005).

本文言語English
ジャーナルProceedings of the International Offshore and Polar Engineering Conference
出版ステータスPublished - 2005
外部発表はい
イベントThe Fifteenth International Offshore and Polar Engineering Conference - ISOPE 2005 - Seoul, Korea, Republic of
継続期間: 2005 6 192005 6 24

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 海洋工学
  • 機械工学

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