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

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

Research output: Contribution to journal › Conference article › peer-review

Abstract

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).

Original language	English
Journal	Proceedings of the International Offshore and Polar Engineering Conference
Publication status	Published - 2005
Externally published	Yes
Event	The Fifteenth International Offshore and Polar Engineering Conference - ISOPE 2005 - Seoul, Korea, Republic of Duration: 2005 Jun 19 → 2005 Jun 24

Keywords

Dissociation
Hydrate
Methane
Sediment
X-ray CT

ASJC Scopus subject areas

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

Cite this

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

abstract = "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).",

keywords = "Dissociation, Hydrate, Methane, Sediment, X-ray CT",

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

year = "2005",

language = "English",

journal = "Proceedings of the International Offshore and Polar Engineering Conference",

issn = "1098-6189",

publisher = "International Society of Offshore and Polar Engineers",

note = "The Fifteenth International Offshore and Polar Engineering Conference - ISOPE 2005 ; Conference date: 19-06-2005 Through 24-06-2005",

}

TY - JOUR

T1 - A dissociation behavior of methane hydrate-bearing sediment using high-speed X-ray CT scanner

AU - Kamata, Yasushi

AU - Sato, Mitsutaka

AU - Ono, Shinji

AU - Ebinuma, Takao

AU - Nagao, Jiro

AU - Minagawa, Hideki

AU - Omura, Ryo

AU - Narita, Hideo

PY - 2005

Y1 - 2005

N2 - 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).

AB - 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).

KW - Dissociation

KW - Hydrate

KW - Methane

KW - Sediment

KW - X-ray CT

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M3 - Conference article

AN - SCOPUS:33749455091

SN - 1098-6189

JO - Proceedings of the International Offshore and Polar Engineering Conference

JF - Proceedings of the International Offshore and Polar Engineering Conference

T2 - The Fifteenth International Offshore and Polar Engineering Conference - ISOPE 2005

Y2 - 19 June 2005 through 24 June 2005

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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