多孔質体におけるメタンハイドレートの生成・分解挙動 : メタンハイドレート貯留層の浸透率評価に関する研究(第1報) Formation and Dissociation Behavior of Methane Hydrate in Porous Media : Estimation of Permeability in Methane Hydrate Reservoir, Part1

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著者

    • 坂本 靖英 SAKAMOTO Yasuhide
    • 独立行政法人産業技術総合研究所 地圏資源環境研究部門 National Institute of Advanced Industrial Science and Technology (AIST), Institute for Geo-Resources and Environment, Geo-Environment Analysis and Evaluation Research Group
    • 駒井 武 KOMAI Takeshi
    • 独立行政法人産業技術総合研究所 地圏資源環境研究部門地圏環境評価研究グループ National Institute of Advanced Industrial Science and Technology (AIST), Institute for Geo-Resources and Environment, Geo-Environment Analysis and Evaluation Research Group
    • 川辺 能成 [他] KAWABE Yoshishige
    • 独立行政法人産業技術総合研究所 地圏資源環境研究部門地圏環境評価研究グループ National Institute of Advanced Industrial Science and Technology (AIST), Institute for Geo-Resources and Environment, Geo-Environment Analysis and Evaluation Research Group
    • 天満 則夫 TENMA Norio
    • 独立行政法人産業技術総合研究所 地圏資源環境研究部門 National Institute of Advanced Industrial Science and Technology (AIST), Institute for Geo-Resources and Environment, Geo-Energy and Environment Research Group
    • 山口 勉 YAMAGUCHI Tsutomu
    • 独立行政法人産業技術総合研究所 地圏資源環境研究部門 National Institute of Advanced Industrial Science and Technology (AIST), Institute for Geo-Resources and Environment

抄録

In order to obtain fundamental data for the evaluation of permeability in methane hydrate reservoir, we have conducted experimental and analytical studies on the behavior of formation and dissociation of methane hydrate in porous media and the change in permeability in the process of formation and dissociation. The experimental apparatus for permeability measurement was originally designed and manufactured. Very uniform methane hydrate reservoir was achieved by the method of gas injection into sand column. The artificial sample of sand column with methane hydrate was satisfactory for the experiment of absolute permeability measurement. As a result of the experiment, it was found that the formation rate of methane hydrate in porous media depends on the particle size distribution of sands composing porous media. The interfacial condition between methane gas and pore water was an essential parameter of formation. In an experiment of dissociation of hydrate by the injection of hot water, the increase of permeability in methane hydrate reservoir was observed as a function of time. The large decrease in permeability was also obtained as a result of reformation due to flow of dissociated gas in porous media. The apparent absolute permeability drastically decreased as the hydrate saturation in sand column becomes lower. The values of the permeability in the case of hydrate saturation 40 % were 1/30 to 1/50 compared with the original values without any hydrate formation in porous media.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 120(2), 85-90, 2004-02-25

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10012099519
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    6868198
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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