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June 4, 2026Nanoscale0 citations

Pore-scale insights into mobilizing residual oil at the high-water-cut stage

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GZGuangpu ZhuCXChao XuJYJun Yao

Key Points

  • The aim is to investigate how to mobilize residual oil in reservoirs at the high-water-cut stage during waterflooding.
  • Conducted pore-scale simulations to assess oil mobilization techniques
  • Analyzed the impact of water injection rates on residual oil recovery
  • Measured oil displacement efficiency at various pressure levels
  • Mobilization of residual oil increased by 30% with optimal water injection rates
  • Pressure fluctuations resulted in a significant reduction of water cut in the production phase
  • Demonstrated a correlation between pore connectivity and oil recovery efficiency

Abstract

Waterflooding is a widely used secondary recovery method that can substantially increase oil recovery. However, after decades of water injection, many reservoirs enter a high-water-cut stage in which large volumes...

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Cite This Study

Zhu et al. (2026) studied this question.

synapsesocial.com/papers/6a211689d499ed480b16f75ahttps://doi.org/10.1039/d5nr05520b
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