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High accuracy analysis of new gas deposits from Cretaceous and Paleogene in Hokkaido on the basis of fluid inclusion and application to mining developments.

Research Project

Project/Area Number 19K05358
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 31020:Earth resource engineering, Energy sciences-related
Research InstitutionFukuoka University

Principal Investigator

Aizawa Jun  福岡大学, 理学部, 助教 (70184249)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2020: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords新規ガス鉱床 / 北海道 / 白亜系 / 古第三系 / 流体包有物 / 北海道東部(道東) / 北海道東部(道東)地域 / 流体包有物 fluid inclusion / 北海道 Hokkaido / 白亜系・古第三系 / 古地温 paleotemperature / ガス鉱床 gas deposit
Outline of Research at the Start

シェールガスは資源輸入国が輸出へ転じるほどの潜在的な力を持ち、北海道の中生界や新生界の分布域でも賦存が期待されています。地表でガス徴や油徴が認められながら層序・構造がよく判らない、ガス根源岩の地表分布が限られている、ガスの素になる有機物の性状が不明、有機物がガスに変わるための古地温が測定できなかった、などの問題で殆んど手つかずのままでした。この研究は近年の層序・構造の知見に加え、過去から現在にわたり地表や地下で採取・保存された岩石試料から、岩石ができた時の温度を顕微鏡下で精度よく求める方法を用いて、ガス・石油鉱床として有望な地域・層準を絞り、燃料資源鉱床の新規開発に必要な情報を提示します。

Outline of Final Research Achievements

The purpose of this research is to estimate underdeveloped fuel deposits in Hokkaido, northeast Japan on the basis of paleotemperature from authigenic minerals that coexist with carbonaceous matter. Combined analysis both inorganic mineral and organic carbonaceous matter is useful not only to clarify past temperature under diagenetic condition but also to construct actual thermal history of sedimentary basins that closely related to generation of methane as well as petroleum. In addition to selected localities and horizons around the district, samples were collected from underground mining areas, borehole cores and cuttings. Obtained data indicate from ca 75 to 100℃, however, no stratigraphic increase with burial depth is observed. This indicates that organic maturation proceeds later stage of burial diagenesis with short duration. As most of carbon in host sedimentary rocks up to 10 wt% is not inorganic, appropriate thermal history as above may generate new fuel deposits.

Academic Significance and Societal Importance of the Research Achievements

当地域では夾炭古第三系に伴うメタンガスが炭鉱の坑内で、古第三系の下位にくる白亜系露頭では石油の兆候が知られていたが、1960年代以降は陸上調査・研究が無いまま今に至る。本研究で質量%の桁の炭素(殆どが有機態炭素)を含む堆積岩試料を地表・坑内・ボーリング現場から得て、このうち堆積物が岩石化する過程で新たに生じた鉱物(自生鉱物)を検討した結果、岩石がおかれた温度は約75ー100℃、鉱物中の流体包有物は有機物の分解過程で生じたメタンを含む事例もあることが判った。白亜系や古第三系に加え、ガス・石油の後からの移動次第では先白亜系と新第三系にも新たな燃料資源鉱床が存在する可能性が高いことが明らかになった。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2023 2022 2021 2020 2019

All Journal Article (9 results) (of which Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] 秋芳洞の石灰岩・鍾乳石に対する照明植生の浸潤2023

    • Author(s)
      鮎沢潤
    • Journal Title

      月刊地球

      Volume: 号外74 Pages: 27-32

    • Related Report
      2022 Research-status Report
  • [Journal Article] 秋吉台・秋芳洞の地形と地質2023

    • Author(s)
      石原与四郎・鮎沢潤・村上崇史
    • Journal Title

      月刊地球

      Volume: 号外74 Pages: 42-48

    • Related Report
      2022 Research-status Report
  • [Journal Article] High δ13C values of methane in residual gas from a secondary biogenic methane reservoir as a possible indicator of thermogenic gas preserved in closed pores2022

    • Author(s)
      Tamamura,S.,Murakami,T.,Ueno,A.,Tamazawa,S.,Kiyama,T.,Inomata,H.,Matsumoto,H.,Uchida,K.,Suzuki,Y.,Aizawa,J. & Kaneko,K.
    • Journal Title

      International Journal of Coal Geology

      Volume: 251 Pages: 1-11

    • DOI

      10.1016/j.coal.2022.103926

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 強アルカリ性水の水質形成とその水から沈殿する炭酸塩の特徴2022

    • Author(s)
      吉村和久・木村颯・鮎沢潤
    • Journal Title

      日本洞窟学会誌

      Volume: 47 Pages: 1-13

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] High δ13C values of methane in residual gas from a seconcary biogenic methane reservoir as a possible indicator of thermogenic gas preserved in closed pores2022

    • Author(s)
      Tamamura,S.,Murakami,T.,Ueno,A.,Tamazawa,S.,Kiyama,T.,Inomata,H.,Matsumoto,H.,Uchida,K.,Suzuki,Y.,Aizawa,J. and Kaneko,K.
    • Journal Title

      International Journal of Coal Geology

      Volume: 251 Pages: 1-11

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 広島県神石高原町幻の鍾乳洞で初めてみいだされたハイドロマグネサイトの鉱物学的重要性2021

    • Author(s)
      鮎沢潤・木村颯・横田角光・横山英揮・吉村和久
    • Journal Title

      洞窟学雑誌

      Volume: 46 Pages: 17-29

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Formation of coalbed methane and water-dissolved gas in Kushiro Coal Mine, Japan, based on isotopic composition of gas, groundwater, and calcite.2020

    • Author(s)
      Tamamura, S.・Murakami, T.・Ueno, A.・Tamazawa, S.・Kiyama, T.・Inomata, H.・Matsumoto, H.・Uchida, K.・Suzuki, Y.・Aizawa, J.
    • Journal Title

      International Journal of Coal Geology

      Volume: 229 Pages: 1-11

    • DOI

      10.1016/j.coal.2020.103577

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Depositional environment of agagonite speleothem in Maboroshi-no-Shonyudo, Taishaku, Hiroshima Prefecture, Japan2020

    • Author(s)
      Kimura, H., Yokota, K., Aizawa, J.・Kan, H.・Yoshimura, K.
    • Journal Title

      Journal of Speleological Society of Japan

      Volume: 44 Pages: 21-36

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 埼玉県比企丘陵、中新世堆積岩類の地球化学的研究2020

    • Author(s)
      木村棟浩・川野良信・鮎沢潤・柚原雅樹
    • Journal Title

      地球環境研究

      Volume: 22 Pages: 25-33

    • NAID

      40022469447

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 釧路コールマインの払い趾充てん炭酸塩鉱物化 第2報2023

    • Author(s)
      松本裕之・市原義久・鈴木良明・伊東義博・板倉賢一・山中真也・鮎沢潤
    • Organizer
      資源・素材学会2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 釧路地方の岩層メタンガスについて 第7報2019

    • Author(s)
      松本裕之・内田景己・鈴木良明・伊東義博・玉村修司・金子勝比古・鮎沢潤
    • Organizer
      資源・素材関係学協会合同秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 釧路地方の岩層メタンガスについて 第7報2019

    • Author(s)
      松本裕之・内田景己・鈴木良明・伊東義博・玉村修司・金子勝比古・鮎沢潤
    • Organizer
      資源・素材学会北海道支部
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2025-01-30  

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