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Reservoir rock estimation considering the change of pore structure for reservoir storage of natural gas

Research Project

Project/Area Number 16360450
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Earth system and resources enginnering
Research InstitutionKyoto University

Principal Investigator

MURATA Sumihiko  Kyoto University, Graduate School of Eng., Assoc.Prof., 工学研究科, 助教授 (30273478)

Co-Investigator(Kenkyū-buntansha) SAITO Toshiaki  Kyoto University, Graduate School of Eng., Prof., 工学研究科, 教授 (90056151)
Project Period (FY) 2004 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥14,700,000 (Direct Cost: ¥14,700,000)
Fiscal Year 2005: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2004: ¥11,600,000 (Direct Cost: ¥11,600,000)
Keywordsreservoir storage of natural gas / pore structure model / lattice Boltzmann model / shape factor / permeability / residual fluid saturation / 天然ガス地中貯蔵 / 間隙構造 / 間隙圧力 / 二点相関法 / 貯留層特性
Research Abstract

For the reservoir storage of natural gas, first, the pore structure of the reservoir and its change induced by the change of pore pressure were investigated experimentally. Second, based on this investigation, a method to construct a numerical pore structure model considering the pore structure change was tried to be proposed. Third, the effect of the pore structure on permeability was investigated by performing the single phase flow simulation using the lattice Boltzmann method (LBM) to the pore structure model. Finally, in order to investigate the effect of pore structure on the residual fluid saturation, two phase flow simulation for oil-water system was carried out using LBM after the test whether the effect of interfacial tension and wettability of rock surface were well simulated. Consequently, following items were clarified.
1.Two-point correlation method can construct a three dimensional numerical pore structure model, although it has higher rate of small pore and the lower rate of effective pore compared with a real rock.
2.The amount of change of porosity induced by the change of pore pressure depends on the pore shape. Therefore, it becomes possible to build a pore structure model considering the effect of pore pressure change if the porosity evaluated from the pore shape is given to the two-point correlation method.
3.Quite higher permeability is obtained compared to the experimentally obtained permeability. This higher permeability may be caused by a larger mesh size of LBM, a not proper setting of boundary condition, and the difference in size between the pore structure model and the specimen used in the experiment.
4.The connectivity of pore and the pore size distribution influence the permeability.
5.Interfacial tension and wettability affect the fluid flow behavior and the residual fluid saturation, and residual fluid saturation becomes larger as the pore structure becomes more complicated depend on the shape of pore.

Report

(3 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • Research Products

    (12 results)

All 2005 2004

All Journal Article (12 results)

  • [Journal Article] 格子ボルツマン法による数値多孔質体モデルの浸透率評価2005

    • Author(s)
      藤田稔, 谷健吾, 村田澄彦, 齋藤敏明
    • Journal Title

      資源・素材学会 春季大会講演集 (I)資源編 (I)

      Pages: 125-126

    • NAID

      10022572955

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 貯留層岩石の間隙構造に及ぼす圧力の影響2005

    • Author(s)
      内藤裕太, 谷健吾, 村田澄彦, 齋藤敏明
    • Journal Title

      平成17年度石油技術協会春季講演会シンポジウム・個人講演要旨集

      Pages: 106-106

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] 岩石基礎物性評価への数値多孔質体モデルの適用性2005

    • Author(s)
      村田澄彦, 齋藤敏明
    • Journal Title

      資源・素材2005(室蘭)企画発表・一般発表資料 (A)/(B)

      Pages: 83-86

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Permeability estimation of numerical porous model using lattice Boltzmann model(in Japanese)2005

    • Author(s)
      Fujita, M., Tani, K., Murata, S., Saito, T.
    • Journal Title

      Proc.of MMIJ 2005 Spring Vol.1

      Pages: 125-126

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Effect of pressure on the pore structure of reservoir rock (in Japanese)2005

    • Author(s)
      Naito, Y., Tani, K., Murata, S., Saito, T.
    • Journal Title

      Abstracts 2004 Technical Meeting of JAPT 2005 Tokyo

      Pages: 106-106

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Applicability of numerical porous model for the basic properties of rock(in Japanese)2005

    • Author(s)
      Murata, S., Saito, T.
    • Journal Title

      Proc.of MMIJ 2005(Muroran) Vol.(A/B)

      Pages: 83-86

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 格子ボルツマン法による数値多孔質体モデルの浸透率評価2005

    • Author(s)
      藤田稔, 谷健吾, 村田澄彦, 齋藤敏明
    • Journal Title

      資源・素材学会 春季大会講演集(I)資源編 (I)

      Pages: 125-126

    • NAID

      10022572955

    • Related Report
      2005 Annual Research Report
  • [Journal Article] ベレア砂岩の数値多孔質モデルを用いた浸透率評価2004

    • Author(s)
      村田澄彦, 藤田稔, 齋藤敏明, 岡野裕史, 大瀬戸一仁
    • Journal Title

      平成16年度石油技術協会春季講演会シンポジウム・個人講演要旨集

      Pages: 152-152

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] 二点相関法により構築された数値多孔質媒体の間隙構造評価2004

    • Author(s)
      村田澄彦, 藤田稔, 谷健吾, 高橋俊哉, 大瀬戸一仁, 齋藤敏明
    • Journal Title

      資源・素材2004(盛岡)企画発表・一般発表資料 (A)/(B)

      Pages: 93-94

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Permeability estimation for Berea sandstone using a numerical porous model (in Japanese)2004

    • Author(s)
      Murata, S., Fujita, M., Saito, T., Okano, H., Oseto, K.
    • Journal Title

      Abstracts 2004 Technical Meeting of JAPT 2004 Sapporo

      Pages: 152-152

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Estimation of pore structure of numerical porous model constructed by two-point correlation method (in Japanese)2004

    • Author(s)
      Murata, S., Fujita, M., Tani, K., Takahashi, S., Oseto, K., Saito, T.
    • Journal Title

      Proc.of MMIJ 2004(Morioka) Vol.(A/B)

      Pages: 93-94

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] ベレア砂岩の数値多孔質モデルを用いた浸透率評価2004

    • Author(s)
      村田澄彦, 藤田稔, 齋藤敏明
    • Journal Title

      平成16年度石油技術協会春季講演会シンポジウム・個人講演要旨集

      Pages: 152-152

    • Related Report
      2004 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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