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Development of 4D imaging technique for subsurface fluids using electromagnetic methods

Research Project

Project/Area Number 20K22326
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0202:Condensed matter physics, plasma science, nuclear engineering, earth resources engineering, energy engineering, and related fields
Research InstitutionTokyo Institute of Technology

Principal Investigator

Ishizu Keiichi  東京工業大学, 理学院, 研究員 (80880054)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords電磁探査 / 4Dイメージング / 地下流体 / モニタリング / 逆解析 / 比抵抗 / 時空間変化 / 物理探査
Outline of Research at the Start

地熱流体・石油・地下水等の地下流体の空間分布を理解することは,地球資源を利用する様々な分野で重要である。近年,地熱増産システムや核廃棄物地層処分への注目から,地下流体の三次元空間分布(3D)に加えて,時間変化を含んだ4D イメージングが必要とされている。本研究では,流体の分布を非破壊で算出できる電磁探査法に着目し,地下流体の時空間分布を解明する。

Outline of Final Research Achievements

The focus on geothermal production enhancement systems and volcanic eruption prediction has led to a need for technology that can elucidate not only the 3D spatial distribution of subsurface fluids but also the temporal variation of that spatial distribution. In this study, I have developed a technique for elucidating the spatio-temporal distribution of subsurface fluid using electromagnetic monitoring. Specifically, I have developed a numerical analysis technique (4D imaging technique: 3D space + 1D time axis) that can estimate the spatio-temporal variation of subsurface resistivity structure from electromagnetic monitoring data.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した電磁探査法による4Dイメージング技術では,地表の観測から地下流体の時空間分布を把握できる。本技術は,様々な地下流体へ適用可能であるため,地熱増産システムなどの資源分野のみならず,マグマ水蒸気噴火予知などの防災分野,核廃棄物地層処分などの環境分野にも貢献できる。また,本技術は,非破壊で地下流体の時空間分布を調査できるため,既存の地下掘削を用いた技術に比べて低コストである。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (17 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (13 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Estimation of Spatial Distribution and Fluid Fraction of a Potential Supercritical Geothermal Reservoir by Magnetotelluric Data: A Case Study From Yuzawa Geothermal Field, NE Japan2022

    • Author(s)
      Ishizu Keiichi、Ogawa Yasuo、Nunohara Keishi、Tsuchiya Noriyoshi、Ichiki Masahiro、Hase Hideaki、Kanda Wataru、Sakanaka Shinya、Honkura Yoshimori、Hino Yuta、Seki Kaori、Tseng Kuo Hsuan、Yamaya Yusuke、Mogi Toru
    • Journal Title

      Journal of Geophysical Research: Solid Earth

      Volume: 127 Issue: 2

    • DOI

      10.1029/2021jb022911

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A cost-effective three-dimensional marine controlled-source electromagnetic survey: exploring seafloor massive sulfides2022

    • Author(s)
      Ishizu Keiichi、Siripunvaraporn Weerachai、Goto Tada-nori、Koike Katsuaki、Kasaya Takafumi、Iwamoto Hisanori
    • Journal Title

      GEOPHYSICS

      Volume: 86 Issue: 4 Pages: 1-75

    • DOI

      10.1190/geo2021-0328.1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Offshore-onshore resistivity imaging of freshwater using a controlled-source electromagnetic method: A feasibility study2021

    • Author(s)
      Ishizu Keiichi、Ogawa Yasuo
    • Journal Title

      GEOPHYSICS

      Volume: 86 Issue: 6 Pages: E391-E405

    • DOI

      10.1190/geo2020-0906.1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ability of the magnetotelluric method to image a deep conductor: Exploration of a supercritical geothermal system2021

    • Author(s)
      Ishizu Keiichi、Ogawa Yasuo、Mogi Toru、Yamaya Yusuke、Uchida Toshihiro
    • Journal Title

      Geothermics

      Volume: 96 Pages: 102205-102205

    • DOI

      10.1016/j.geothermics.2021.102205

    • NAID

      40022604904

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] A feasibility study of offshore-onshore resistivity imaging of freshwater using a controlled source electromagnetic method2021

    • Author(s)
      Keiichi Ishizu, Yasuo Ogawa
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of spatial distribution and fluid fraction of a potential supercritical geothermal reservoir by magnetotelluric data: a case study from Yuzawa geothermal field, NE Japan2021

    • Author(s)
      Keiichi Ishizu、Yasuo Ogawa、Keishi Nunohara、Noriyoshi Tsuchiya、Masahiro Ichiki、Hideaki Hase、Wataru Kanda、Shinya Sakanaka、Yoshimori Honkura、Yuta Hino、Kaori Seki、Kuo Hsuan Tseng、Yusuke Yamaya、Toru mogi
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 効率的な3次元海洋電磁探査法2021

    • Author(s)
      石須慶一、Weerachai Siripunvaraporn、後藤忠徳、小池克明、笠谷貴史、岩本久則
    • Organizer
      物理探査学会第145回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] MTデータによる超臨界地熱貯留層の空間分布と流体割合の推定:東北湯沢地熱域での例2021

    • Author(s)
      石須 慶一、小川 康雄、布原 啓史、土屋 範芳、市來 雅啓、長谷 英彰、神田, 径、坂中 伸也、本藏 義守、日野 裕太、関 香織、Kuo Hsuan Tsen、山谷 祐介、茂木 透
    • Organizer
      物理探査学会第145回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] MTデータを用いた超臨界地熱貯留層の空間分布と流体割合の推定: 湯沢地熱域における ケーススタディ2021

    • Author(s)
      石須 慶一、小川 康雄、布原 啓史、土屋 範芳、市來 雅啓、長谷 英彰、神田、径、坂中 伸也、本藏 義守、日野 裕太、関 香織、Kuo Hsuan Tsen、山谷 祐介、茂木 透
    • Organizer
      日本地熱学会令和3年学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Coastal resistivity imaging of freshwater using a controlled source electromagnetic method2021

    • Author(s)
      K. Ishizu、Ogawa, Y
    • Organizer
      The 14th SEGJ International Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 費用対効果の高い3次元海洋電磁探査法2021

    • Author(s)
      石須慶一、Weerachai Siripunvaraporn、後藤忠徳、小池克明、笠谷貴史、岩本久則
    • Organizer
      資源素材学会2021年度秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Offshore-onshore resistivity imaging of freshwater using a controlled source electromagnetic method2021

    • Author(s)
      K. Ishizu、Ogawa, Y
    • Organizer
      IAGA-IASPEI 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MT法を用いた深部低比抵抗体のイメージング能力について:超臨界地熱資源探査の例2021

    • Author(s)
      石須慶一、小川康雄、茂木透、山谷祐介、内田利弘
    • Organizer
      物理探査学会第144回(2021年度春季)学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] MT法を用いた深部低比抵抗体のイメージング能力について:超臨界地熱資源探査の例2021

    • Author(s)
      石須慶一、小川康雄、茂木透、山谷祐介、内田利弘
    • Organizer
      JPGU
    • Related Report
      2021 Annual Research Report
  • [Presentation] MT 法による秋田県三途川カルデラ南部域の地熱資源探査(序報)2020

    • Author(s)
      石須 慶一,小川 康雄,布原 啓史,土屋 範芳
    • Organizer
      日本地熱学会
    • Related Report
      2020 Research-status Report
  • [Presentation] CSEM 法を用いた海陸シームレス地質構造の解明に向けてのフィジビリティスタディ2020

    • Author(s)
      石須慶一, 小川康雄
    • Organizer
      物理探査学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 曳航・海底受信機で測定されたCSEM データの三次元逆解析2020

    • Author(s)
      石須慶一,後藤忠徳,小池克明,Weerachai Siripunvaraporn, 笠谷貴史,岩本久則
    • Organizer
      物理探査学会
    • Related Report
      2020 Research-status Report

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Published: 2020-09-29   Modified: 2023-01-30  

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