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Estimation of subsurface structure by means of the Triaxial Drill-bit VSP (proof test)

Research Project

Project/Area Number 04555146
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 資源開発工学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

NIITSUMA Hiroaki  Tohoku University, Resources Engineering, Professor, 工学部, 教授 (90108473)

Co-Investigator(Kenkyū-buntansha) ASANUMA Hiroshi  Tohoku University, Resources Engineering, Reserch Associate, 工学部, 助手 (50250717)
ABE Mamoru  Tohoku University, Resources Engineering, Assoc.Professor, 工学部, 助教授 (50005310)
SATO Motoyuki  Tohoku University, Resources Engineering, Assoc.Professor, 工学部, 助教授 (40178778)
永野 宏治  室蘭工業大学, 工学部, 助手 (90212109)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥10,900,000 (Direct Cost: ¥10,900,000)
Fiscal Year 1994: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1993: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1992: ¥7,100,000 (Direct Cost: ¥7,100,000)
KeywordsSWD / Reverse VSP / Seismic measurement / Multicomponent seismic / Geothermal Energy / Subsurface measurement / Reflection method / Hot Dry Rock / 坑井掘削モヌタリング / 地熱開発 / 坑井掘削モニタリング
Research Abstract

(1) Development of softwares and hardwares ; realtime and post-analysis software packages were made. We also developed highly sensitive 3C sensor.
(2) Field experiment ; A measurement well was drilled in JNOC Kashiwazaki Test Field and we carried out seismic measurement experiment in this field in 1992,3, and 4. Seismic measurement was also made in Ogachi(Akita)and Hachimantai(Iwate)fields.
(3) Analysis of field data ; (a)geothermal reservoir in Ogachi field was detected by the TAD-VSP method, (b)subsurface structure in Hachimantai field was imaged by the technique, (c)good agreement was observed between log data and TAD-VSP data in JNOC Kashiwazaki field.
(4) General analysis ; informations on subsurface structure in the fields were compared with the TAD-VSP data deduced in this project.
(5) Suggestion of the TAD-VSP method ; a suggestion was made by the investigators to realize TAD-VSP.

Report

(4 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] H. Asanuma and H. Niitsuma: "Triaxial VSP uses drill-bit as a downhole seismic sources" SEG Expanded Abstracts. 108-111 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H. Asanuma and H. Niitsuma: "Triaxial seismic measurement while drilling and estimation of subsurface structure" Geothermal Science and Technology. (in press). (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H. Niitsuma他3名: "Evaluation of geothermal reservoir structures by a new downhole seismic technique" WGC Abstracts. (in press). (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiroshi Asanuma and Hiroaki Niitsuma: "Triaxial VSP uses drill bit as a downhole seismic source" SEG Expanded Abstracts. 108-11 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiroshi Asanuma and Hiroaki Niitsuma: "Triaxial seismic measurement while drilling and estimation of subsurface structure" Geothermal Science and Technology to be appeared in 1995.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Hiroaki Niitsuma, et.al.: "Evaluation of geothermal reservoir structures by a new downhole seismic techniques" WGC Abstracts to be appeared in 1995.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] H.Asanuma and H.Niitsuma: "Triaxial seismic measurement while drilling and estimation of subsurface structure" Geothermal Science and Technology. (in press). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 浅沼宏,高野淳,新妻弘明: "坑井掘削時のAEを用いた3軸VSP法による雄勝HDRフィールド人工貯留層の検知" 第5回地下と土木のAE国内コンファレンス論文集. 1-10 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 加原和明,浅沼宏,新妻弘明: "パーカッション式坑井掘削にともなうAEの3軸計測による地下反射体の検出" 第5回地下と土木のAE国内コンファレンス論文集. 11-17 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Asanuma,H.Niitsuma: "Measurement of a HDR reservoir by means of the triaxial drill-bit VSP" Abstracts of 2nd Borehole Seismics Conference. (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 浅沼宏,高野淳,新妻弘明: "坑井掘削音を用いた3軸VSP法による電力中央研究所雄勝フィールドHDR貯留層の計測" 日本地熱学会平成5年度学術講演会講演要旨集. B20 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Asanuma and H.Niitsuma: "Triaxial Inverse VSP Uses Drill-Bit as a Downhole Seismic Source" Expanded Abstract of SEG 62nd Annual Meeting. 108-111 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 加原 和明,浅沼 宏 新妻 弘明: "岩盤調査孔の掘削にともなう弾性波の3軸計測実験" 資源・素材学会東北支部秋期研究発表会講演論文集. 5 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 杉森 真,新妻 弘明: "センサアレイによる不均質固体媒質中の連続音源の位置推定" 日本音響学会誌. 49. 10-18 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 浅沼 宏,新妻 弘明 中鉢 憲賢: "連続音の三軸計測による反射体の位置推定" 日本音響学会講演論文集. 411-412 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 浅沼 宏,新妻 弘明: "坑井の掘削音を用いた3軸VSP法による地下構造の推定" 物理探査学会第86回学術講演会論文集. 107-111 (1992)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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