Gas recovery from gas hydrate bearing sediments by inhibitor or steam injection combined with depressurization

T. Kawamura, M. Ohtake, Y. Sakamoto, Y. Yamamoto, H. Haneda, T. Komai, S. Higuchi

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

It is noted that natural gas hydrate exists in geological formations and constitutes a potentially large natural gas resource for the future. To make recovery of natural gas from hydrates commercially viable, hydrates must be dissociated in-situ. At the present stage, depressurization method is expected to be a main dissociation procedure because of its high energy profit ratio and so on. Whereas, there is a worry that some interruptions for gas production i.e. plugging by hydrate formation will occur. Also there is a demand to enhance the recovery ratio of natural gas. In this study, inhibitor injection method or steam injection method combined with depressurization have been examined using laboratory made methane hydrate bearing sediment. As a result, it becomes clear that the combined method contributed the fastest gas production rate compared to the other methods. The advantages of combined method become remarkable as higher pressure condition (smaller depressurization from initial pressure). The production rate of combined method become faster as the pressure is lower.

本文言語English
ホスト出版物のタイトルThe Proceedings of the 19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
ページ54-58
ページ数5
出版ステータスPublished - 2009 12 1
外部発表はい
イベント19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE - Osaka, Japan
継続期間: 2009 6 212009 6 26

出版物シリーズ

名前Proceedings of the International Offshore and Polar Engineering Conference
ISSN(印刷版)1098-6189
ISSN(電子版)1555-1792

Other

Other19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE
CountryJapan
CityOsaka
Period09/6/2109/6/26

ASJC Scopus subject areas

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

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