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<p>The production performance of shale gas can be substantially enhanced by temporary plugging and diverting fracturing. The key to successful implementation is to transport temporary plugging agents to the expected perforations in wellbore section with multiple perforation clusters, where they form an effective seal. The transport behavior of TPA particles in the horizontal wellbore with multiple perforation clusters remains poorly understood. this paper established a new horizontal wellbore model designed under a distorted geometric similarity principle. A coupled CFD–DEM framework is then used to describe the interactions between temporary plugging agent particles and the fracturing fluid during transport. Finally, the operational recommendations for directing the agents to the intended perforations are proposed. The results indicate that fluid velocity governs the distance over which TPA particles remain in suspended transport and modulates their distribution among the leading, middle, and trailing clusters.In addition, fluid velocity is a key determinant of vortical effects..</p>

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Transport Mechanisms of Fracturing Fluid–Temporary Plugging Agent Particles in Horizontal Wellbores with Multiple Perforation Clusters in Shale-Gas Formations

  • 期刊论文

  • 发表日期：

    2026年6月25日

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  • Lu Cong,
  • Zhao Xiaolong,
  • Zeng Qijun,
  • Wang Shouxin

摘要

The production performance of shale gas can be substantially enhanced by temporary plugging and diverting fracturing. The key to successful implementation is to transport temporary plugging agents to the expected perforations in wellbore section with multiple perforation clusters, where they form an effective seal. The transport behavior of TPA particles in the horizontal wellbore with multiple perforation clusters remains poorly understood. this paper established a new horizontal wellbore model designed under a distorted geometric similarity principle. A coupled CFD–DEM framework is then used to describe the interactions between temporary plugging agent particles and the fracturing fluid during transport. Finally, the operational recommendations for directing the agents to the intended perforations are proposed. The results indicate that fluid velocity governs the distance over which TPA particles remain in suspended transport and modulates their distribution among the leading, middle, and trailing clusters.In addition, fluid velocity is a key determinant of vortical effects..