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Low permeability water injection sandstone reservoirs are an important component of Huabei Oilfield. Due to their complex influencing factors, there is currently no systematic method for evaluating the current situation of low-permeability sandstone water flooding in PetroChina Huabei Oilfield. Based on the dynamic development of oil reservoirs, a water drive effect evaluation system was constructed with low permeability sandstone reservoirs as the research object by taking into account three indicators: water drive utilization, water content change law, and stable production status. Using factor paired comparison method to determine the weight coefficients of influencing factors and quantitatively study the evaluation system for evaluation indicators. Through actual reservoir calculations, its good applicability has been verified. The evaluation model was used to systematically analyze 42 typical low-permeability sandstone reservoirs, providing a powerful tool for fine reservoir management and having certain reference significance.

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Quantitative Study on the Evaluation System of Water Flooding Effect in Low-Permeability Sandstone Reservoirs

  • 会议论文

  • 发表日期：

    2025年

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  • Jia Guo,
  • Ya-zhou Wang,
  • Fa-jun Guo,
  • Xiu-wei Wang,
  • Hong-mei Wang,
  • Yu-zhi Zhao,
  • Zhi-ping Zhang,
  • Qi Zhang,
  • Wen-liang Deng,
  • Wei Huang

摘要

Low permeability water injection sandstone reservoirs are an important component of Huabei Oilfield. Due to their complex influencing factors, there is currently no systematic method for evaluating the current situation of low-permeability sandstone water flooding in PetroChina Huabei Oilfield. Based on the dynamic development of oil reservoirs, a water drive effect evaluation system was constructed with low permeability sandstone reservoirs as the research object by taking into account three indicators: water drive utilization, water content change law, and stable production status. Using factor paired comparison method to determine the weight coefficients of influencing factors and quantitatively study the evaluation system for evaluation indicators. Through actual reservoir calculations, its good applicability has been verified. The evaluation model was used to systematically analyze 42 typical low-permeability sandstone reservoirs, providing a powerful tool for fine reservoir management and having certain reference significance.