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Evaluation of Mechanical behaviour for Resources Development of Methane Hydrate-Supported Sand in Deep Seabed

Research Project

Project/Area Number 17360226
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geotechnical engineering
Research InstitutionYamaguchi University

Principal Investigator

HYODO Masayuki  Yamaguchi University, Graduate School of Engineering, Prof (40130091)

Co-Investigator(Kenkyū-buntansha) MURATA Hidekazu  Yamaguchi University, Vice-president (80044618)
ISHIDA Tsuyoshi  Kyoto University, Graduate School of Engineering, Prof (10232307)
NAKATA Yukio  Yamaguchi University, Graduate School of Engineering, Assoc. Prof (90274183)
TANAKA Kazuhiro  Yamaguchi University, Graduate School of Engineering, Assoc Prof (30188289)
YOSHIMOTO Norimasa  Yamaguchi University, Graduate School of Engineering, Asst Prof (00325242)
Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥14,790,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥990,000)
Fiscal Year 2007: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2006: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 2005: ¥5,800,000 (Direct Cost: ¥5,800,000)
KeywordsMethane Hydrate / Deep Seabed / Sedimentary Deposits / Resources Development / Mechanical Behaviour / Constitutive Model / Ground Deformation Model / Methane Gas / 生産過程 / 減圧法 / せん断変形 / 体積変化 / 構成モデル
Research Abstract

The possible existence of a vast amount of methane hydrate around islands has attracted attention in Japan. At the same time, several production methods have then considered to extract the gas from the hydrate zone. Although it is known that the hydrates pose significant obstacles to drilling and production operations, them is at present only limited knowledge on the mechanical behavior of hydrate-rich zones, which is necessary to understand the stability around the site. For this purpose, a low-temperature high-pressure triaxial test equipment was developed to reproduce the temperature and pressure condition of the seabed where methane hydrate exists.
The, methane hydrate was produced in the sand specimen set in the triaxial cell to measure its shear strength. Moreover, methane hydrate formation was replicated and methane hydrate was dissociated under different conditions of temperature and pressure in order to understand the resulting deformation behavior of the ground.
On the basis of experimental results, an elastoplastic constitutive model for methane hydrate-bearing sand was developed based on subloading surface model. The bonding effect due to the cementation by methane hydrate was introduced into the model The bonding force was correlated with the pressure and temperature according to the experimental results. The simulation performed on the triaxial behaviour of methane hydrate-supported sand under various pressure and temperature condition showed good agreement with the experimental results.

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (18 results)

All 2008 2007

All Journal Article (10 results) (of which Peer Reviewed: 6 results) Presentation (8 results)

  • [Journal Article] Elastoplastic Constitutive Equation for Methane Hydrate-bearing Sand in Deep Seabed2008

    • Author(s)
      Hyodo Masayuki
    • Journal Title

      Proceedings of the 14th International Symposium on Phsticity 2008

      Pages: 349-351

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Elastoplastic Constitutive Equation for Methane Hydrate-bearing Sand in Deep Seabed2008

    • Author(s)
      Hyodo, Masayuki
    • Journal Title

      Proceedings of the 14th International Symposium on Plasticity 2008

      Pages: 349-351

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Elastoplastic Constitutive Equation for Methane Hydrate-bearing Sand in Deep Seabed2008

    • Author(s)
      Hyodo Masayuki
    • Journal Title

      Proceedings of the 14th International Symposium on Plasticity 2008

      Pages: 349-351

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 深海底地盤を模擬したガスハイドレート堆積砂の三軸圧縮特性2007

    • Author(s)
      米田 純
    • Journal Title

      地盤と建設 25

      Pages: 113-122

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Mechanical Behavior of Methane Hydrate-supported Sand2007

    • Author(s)
      Hyodo Masayuki
    • Journal Title

      Proceedings of Internal Symposium on Geotechnical Engineering, Ground Improvement and Geosynthethics for Human security and Environmental Preservation

      Pages: 195-208

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Shear Behaviour of Methane Hydrate Bearing Sand2007

    • Author(s)
      Hyodo Masayuki
    • Journal Title

      Proceedings of ISOPE-2007

      Pages: 1326-1333

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] "Mechanical Property of Gas Hydrate Sediment at Deep Seabed on Triaxial Compression Test"(in Japanese)2007

    • Author(s)
      Yoneda, Jun
    • Journal Title

      Ground Engineering Vol. 25, No. 1

      Pages: 113-122

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Mechanical Behavior of Methane Hydrate-supported Sand2007

    • Author(s)
      Hyodo, Masayuki
    • Journal Title

      Proceedings of the Internal Symposium on Geotechnical Engineering, Ground Improvement and Geosynthethics for Human security and Environmental Preservation

      Pages: 195-208

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Shear Behaviour of Methane Hydrate Bearing Sand2007

    • Author(s)
      Hyodo, Masayuki
    • Journal Title

      Proceedings of ISOPE-2007

      Pages: 1326-1333

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Mechanical Behavior of Methane Hydrate-supported Sand2007

    • Author(s)
      Hyodo Masayuki
    • Journal Title

      Proceedings of the Intemal Symposium on Geotechnical Engineering, Ground Improvement and Geoynthethics for Human security and Enviromental Preservation

      Pages: 195-208

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 減圧法によるメタンハイドレート固結砂の分解時力学特性2007

    • Author(s)
      米田 純
    • Organizer
      第42回地盤工学研究発表会
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2007-07-05
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] メタンハイドレートの生成及び分解による砂の力学特性2007

    • Author(s)
      津田 伸基
    • Organizer
      第42回地盤工学研究発表会
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2007-07-05
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] "Mechanical properties of Methane hydrate-bearing sand during decomposition of hydrate by depressurization method" (in Japanese)2007

    • Author(s)
      Yoneda, Jun
    • Organizer
      42nd Japan National Conference on Geotechnical Engineering
    • Place of Presentation
      Nagoya
    • Year and Date
      2007-07-05
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] "Mechanical behavior of sand due to formation and dissociation of methan hydrate" (in Japanese)2007

    • Author(s)
      Tsuda, Nobuki
    • Organizer
      42nd Japan National Conference on Geotechnical Engineering
    • Place of Presentation
      Nagoya
    • Year and Date
      2007-07-05
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] K_0圧密下におけるメタンハイドレートを含む砂の力学特性2007

    • Author(s)
      津田 伸基
    • Organizer
      土木学会中国支部第60回研究発表会
    • Place of Presentation
      山口大学工学部
    • Year and Date
      2007-06-02
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] 減圧法によるメタンハイドレート分解に伴う堆積砂の挙動2007

    • Author(s)
      米田 純
    • Organizer
      土木学会中国支部第60回研究発表会
    • Place of Presentation
      山口大学工学部
    • Year and Date
      2007-06-02
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] "Mechanical properties of Methane hydrate-bearing sand under ICQ consolidation" (in Japanese)2007

    • Author(s)
      Tsuda, Nobuki
    • Organizer
      59th Annual Conference of Japan Society of Civil Engineering
    • Place of Presentation
      Ube
    • Year and Date
      2007-06-02
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] "Behaviour of Methane hydrate-bearing sand during decomposition of hydrate by depressurization method" (in Japanese)2007

    • Author(s)
      Yoneda, Jun
    • Organizer
      59th Annual Conference of Japan Society of Civil Engineering
    • Place of Presentation
      Ube
    • Year and Date
      2007-06-02
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2005-04-01   Modified: 2016-04-21  

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