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Microscale Evaluation of Tight Oil Mobility: Insights from Pore Network Simulation

Author

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  • Yongchao Wang

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China
    Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China)

  • Yanqing Xia

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China)

  • Zihui Feng

    (Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China
    Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China)

  • Hongmei Shao

    (Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China
    Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China)

  • Junli Qiu

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China)

  • Suping Ma

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China)

  • Jiaqiang Zhang

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Haoyuan Jiang

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Jiyong Li

    (Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Bo Gao

    (Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China
    Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China)

  • Lingling Li

    (Research Institute of Petroleum Exploration and Development, Daqing Oilfield of CNPC, Daqing 163000, China
    Heilongjiang Provincial Key Laboratory of Shale Oil & Tight Oil Accumulation, Daqing 163712, China)

Abstract

Pore network modeling based on digital rock is employed to evaluate the mobility of shale oil in Qingshankou Formation, Songliao Basin, China. Computerized tomography technology is adopted in this work to reconstruct the digital rock of shale core. The pore network model is generated based on the computerized tomography data. We simulate the dynamics of fluid flow in a pore network model to evaluate the mobility of fluid in shale formation. The results show that the relative permeability of oil phase increases slowly in the initial stage of the displacement process, which is mainly caused by the poor continuity of the oil phase. In the later stages, with the increase in the oil phase continuity, the range of relative permeability increases. With the increase of organic matter content, the permeability of the water phase remains unchanged at low water saturation, but gradually increases at high water saturation. At the same time, it can be seen that, with the increase in organic matter content, the isosmotic point of the oil–water phase permeability shifts to the left, indicating that the wettability to water phase gradually weakens.

Suggested Citation

  • Yongchao Wang & Yanqing Xia & Zihui Feng & Hongmei Shao & Junli Qiu & Suping Ma & Jiaqiang Zhang & Haoyuan Jiang & Jiyong Li & Bo Gao & Lingling Li, 2021. "Microscale Evaluation of Tight Oil Mobility: Insights from Pore Network Simulation," Energies, MDPI, vol. 14(15), pages 1-10, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:15:p:4580-:d:603632
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    Citations

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    Cited by:

    1. Jianchao Cai & Reza Rezaee & Victor Calo, 2022. "Recent Advances in Multiscale Petrophysics Characterization and Multiphase Flow in Unconventional Reservoirs," Energies, MDPI, vol. 15(8), pages 1-2, April.
    2. Ting’an Bai & Feng Yang & Huan Wang & He Zheng, 2022. "Adhesion Forces of Shale Oil Droplet on Mica Surface with Different Roughness: An Experimental Investigation Using Atomic Force Microscopy," Energies, MDPI, vol. 15(17), pages 1-15, September.
    3. Zhiyu Li & Zhengdong Lei & Weijun Shen & Dmitriy A. Martyushev & Xinhai Hu, 2023. "A Comprehensive Review of the Oil Flow Mechanism and Numerical Simulations in Shale Oil Reservoirs," Energies, MDPI, vol. 16(8), pages 1-23, April.

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