Gas hydrate extraction from marine sediments by heat stimulation method

Yasuhide Sakamoto, Takeshi Komai, Yoshishige Kawabe, Norio Tenma, Tsutomu Yamaguchi

Research output: Contribution to journalConference articlepeer-review

27 Citations (Scopus)

Abstract

Gas hydrate is one of the potential resources of natural gas in the near future, because it exists in marine sediments or in permafrost regions worldwide. We have designed and made the special type experimental apparatus, consisted of high-pressure vessel and sand column. Using this apparatus, we have carried out an experimental research for the thermal stimulation method such as hot water injection to extract methane gas from gas hydrate reservoirs. It was found that MH dissociation process by hot water injection consisted of four stages, (1) displacement of free methane gas due to water injection, (2) additional MH formation at downstream zone due to migration of dissociated gas and water, (3) actual MH dissociation, (4) completion of dissociation. Furthermore, we considered the effect on the movement of dissociation front and gas production behavior in the case of different reservoir pressure and hydrate saturation.

Original languageEnglish
Pages (from-to)52-55
Number of pages4
JournalProceedings of the International Offshore and Polar Engineering Conference
Publication statusPublished - 2004 Dec 1
Externally publishedYes
EventThe Fourteenth International Offshore and Polar Engineering Conference - ISOPE 2004 - Toulon, France
Duration: 2004 May 232004 May 28

Keywords

  • Dissociation
  • Gas hydrate
  • Hot water injection
  • Marine sediment
  • Methane
  • Permeability
  • Thermal stimulation method

ASJC Scopus subject areas

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

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