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A percolation study of electrical properties of reservoir rocks

Author

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  • Wang, Ke-Wen
  • Sun, Jian-Meng
  • Guan, Ji-Teng
  • Zhu, Da-Wei

Abstract

This paper focuses on theory studies of rock electrical properties using percolation theory. The results show that classical site and bond percolation models can well describe the characteristics of the pore connectivity and the effects on the electrical resistivity. Because of the over-idealized simplification, classical site and bond percolation models cannot well show the effects of the wettability on rock resistivity. Invasion percolation (IP) model can conveniently describe the micropores around main void space and the effects of the wettability. Therefore, it can give the results agreeing with the experimental data. At high water saturation, rock electrical properties show the Archie behavior. At low water saturation, the non-Archie behavior appears. For water-wet rock with irregular grooves and crevices, the I vs. Sw curve shows downwards trend. For oil-wet sample (non-shaly sandstone, without conductive grain), the curve shows upward trend.

Suggested Citation

  • Wang, Ke-Wen & Sun, Jian-Meng & Guan, Ji-Teng & Zhu, Da-Wei, 2007. "A percolation study of electrical properties of reservoir rocks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 380(C), pages 19-26.
    • Handle: RePEc:eee:phsmap:v:380:y:2007:i:c:p:19-26
    DOI: 10.1016/j.physa.2007.02.051
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    Cited by:

    1. Xiangyang Hu & Renjie Cheng & Hengrong Zhang & Jitian Zhu & Peng Chi & Jianmeng Sun, 2024. "Three-Water Differential Parallel Conductivity Saturation Model of Low-Permeability Tight Oil and Gas Reservoirs," Energies, MDPI, vol. 17(7), pages 1-19, April.
    2. Shriram Ashok Kumar & Maliha Tasnim & Zohvin Singh Basnyat & Faezeh Karimi & Kaveh Khalilpour, 2022. "Resilience Analysis of Australian Electricity and Gas Transmission Networks," Sustainability, MDPI, vol. 14(6), pages 1-20, March.
    3. Huang, Xudong & Yang, Dong & Kang, Zhiqin, 2021. "Impact of pore distribution characteristics on percolation threshold based on site percolation theory," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 570(C).
    4. Lin, Jianjun & Chen, Huisu & Liu, Lin & Zhang, Rongling, 2020. "Impact of particle size ratio on the percolation thresholds of 2D bidisperse granular systems composed of overlapping superellipses," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 544(C).
    5. Jianmeng Sun & Ping Feng & Peng Chi & Weichao Yan, 2022. "Microscopic Conductivity Mechanism and Saturation Evaluation of Tight Sandstone Reservoirs: A Case Study from Bonan Oilfield, China," Energies, MDPI, vol. 15(4), pages 1-27, February.

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