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Pressure oscillation method is a new method to evaluate core permeability of low and ultra-low permeability reservoir. It has the advantages of short testing period, good stability, high precision and simple operation. However, due to the lack of systematic research on pressure oscillation method, this method can not be fully applied in such unconventional reservoir fields as shale oil. Based on the self-developed fracturing fluid damage evaluation device and pressure oscillation method, the paper carried out an overall damage evaluation experiment of the fracturing fluid system commonly used in Jimsar shale oil reservoir, the damage evaluation of single factors such as water sensitivity, residue and emulsification was realized, the main control factors were defined, and the damage degree of each factor was quantified, it is important to improve the adaptability of fracturing fluid, reduce the damage of fracturing fluid and optimize the performance of fracturing fluid system.

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Research and Application of Pressure Oscillation Method in Fracturing Fluid System of Shale Oil Reservoir

  • 会议论文

  • 发表日期：

    2025年

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  • Ya Li,
  • Hong-yong Hao,
  • Guo-dong Wu,
  • Yin-qiang Yan,
  • Sheng-hao Guo,
  • Gulmira Kurban,
  • Cun-jiang Wang,
  • Feng Wang,
  • Chao Chen,
  • Yang Lu,
  • Qin Na

摘要

Pressure oscillation method is a new method to evaluate core permeability of low and ultra-low permeability reservoir. It has the advantages of short testing period, good stability, high precision and simple operation. However, due to the lack of systematic research on pressure oscillation method, this method can not be fully applied in such unconventional reservoir fields as shale oil. Based on the self-developed fracturing fluid damage evaluation device and pressure oscillation method, the paper carried out an overall damage evaluation experiment of the fracturing fluid system commonly used in Jimsar shale oil reservoir, the damage evaluation of single factors such as water sensitivity, residue and emulsification was realized, the main control factors were defined, and the damage degree of each factor was quantified, it is important to improve the adaptability of fracturing fluid, reduce the damage of fracturing fluid and optimize the performance of fracturing fluid system.