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Study of the Characterisation Method of Effective Two-Phase Seepage Flow in the Construction of Gas Storage Reservoirs

Author

Listed:
  • Guoying Jiao

    (School of Petroleum and Natural Gas Engineering, Chongqing University of Science & Technology, Chongqing 401331, China)

  • Shijie Zhu

    (School of Petroleum and Natural Gas Engineering, Chongqing University of Science & Technology, Chongqing 401331, China)

  • Fei Xie

    (Research Institute of Exploration and Development, Dagang Oilfield Company, PetroChina, Tianjing 300450, China)

  • Shuhe Yang

    (Research Institute of Exploration and Development, Dagang Oilfield Company, PetroChina, Tianjing 300450, China)

  • Zuping Xiang

    (School of Petroleum and Natural Gas Engineering, Chongqing University of Science & Technology, Chongqing 401331, China)

  • Jiangen Xu

    (School of Petroleum and Natural Gas Engineering, Chongqing University of Science & Technology, Chongqing 401331, China)

Abstract

During the rebuilding of a gas reservoir, repeated “strong injection and mining” processes change the seepage capacities of gas and water. Hence, accurately determining the seepage laws of gas and water in a gas storage reservoir is crucial. In this study, a standard relative permeability test was conducted with a one-dimensional core. Additionally, a gas reservoir injection and mining simulation experiment was conducted with a two-dimensional plate. The results show that the relative permeability curve obtained by the one-dimensional core test did not accurately reflect the operation characteristics of the gas storage and the change in the seepage law during the gas reservoir construction. Furthermore, in the two-dimensional plate experiment, the operation mode was restored using the plane radial flow formula, the mutual relationship between the gas and water’s effective permeability under different injection stages was established, and the multi-cycle injection operation was accurately described. This method lays the foundation for the construction of gas reservoirs and the establishment of the multi-phase seepage law for gas reservoirs.

Suggested Citation

  • Guoying Jiao & Shijie Zhu & Fei Xie & Shuhe Yang & Zuping Xiang & Jiangen Xu, 2022. "Study of the Characterisation Method of Effective Two-Phase Seepage Flow in the Construction of Gas Storage Reservoirs," Energies, MDPI, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:gam:jeners:v:16:y:2022:i:1:p:242-:d:1014975
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