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 Ohmura, Hideo Narita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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. As a result, pore pressure in the sediment decreased immediately and the sediment temperature decreased proportionally to dissociation pressure. The CT luminance value decreased with the decomposition because hydrates in the sediment pore space replaced by methane gases.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
Pages351-354
Number of pages4
Volume2005
Publication statusPublished - 2005
Externally publishedYes
Event15th International Offrshore and Polar Engineering Conference, ISOPE-2005 - Seoul, Korea, Republic of
Duration: 2005 Jun 192005 Jun 24

Other

Other15th International Offrshore and Polar Engineering Conference, ISOPE-2005
CountryKorea, Republic of
CitySeoul
Period05/6/1905/6/24

Fingerprint

Bearings (structural)
Hydrates
Sediments
Methane
X rays
Pore pressure
Luminance
Decomposition
Gases

Keywords

  • Dissociation
  • Hydrate
  • Methane
  • Sediment
  • X-ray CT

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Kamata, Y., Sato, M., Ono, S., Ebinuma, T., Nagao, J., Minagawa, H., ... Narita, H. (2005). A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner. In Proceedings of the International Offshore and Polar Engineering Conference (Vol. 2005, pp. 351-354)

A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner. / Kamata, Yasushi; Sato, Mitsutaka; Ono, Shinji; Ebinuma, Takao; Nagao, Jiro; Minagawa, Hideki; Ohmura, Ryo; Narita, Hideo.

Proceedings of the International Offshore and Polar Engineering Conference. Vol. 2005 2005. p. 351-354.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kamata, Y, Sato, M, Ono, S, Ebinuma, T, Nagao, J, Minagawa, H, Ohmura, R & Narita, H 2005, A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner. in Proceedings of the International Offshore and Polar Engineering Conference. vol. 2005, pp. 351-354, 15th International Offrshore and Polar Engineering Conference, ISOPE-2005, Seoul, Korea, Republic of, 05/6/19.
Kamata Y, Sato M, Ono S, Ebinuma T, Nagao J, Minagawa H et al. A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner. In Proceedings of the International Offshore and Polar Engineering Conference. Vol. 2005. 2005. p. 351-354
Kamata, Yasushi ; Sato, Mitsutaka ; Ono, Shinji ; Ebinuma, Takao ; Nagao, Jiro ; Minagawa, Hideki ; Ohmura, Ryo ; Narita, Hideo. / A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner. Proceedings of the International Offshore and Polar Engineering Conference. Vol. 2005 2005. pp. 351-354
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