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The polymer-enhanced foam injection process: An improved-oil-recovery technique for light oil reservoirs after polymer flooding

机译：聚合物增强泡沫注入工艺：聚合物驱后轻质油藏的改良采油技术

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摘要

Using the methods of physical simulation and numerical simulation, the feasibility of polymer-enhanced foam injection after polymer flooding is studied. First, an experiment-based screening criteria for polymer-enhanced foams is presented, and the influence of polymer concentration on foam mobility is investigated. Thereafter, the parallel experiments of polymer-enhanced foam injection and conventional foam injection after polymer flooding are performed. A Lorentz-Monte-Carlo method is then proposed to establish the heterogeneous geological models with different interlayer and plane heterogeneity. Thus, the sensitivity of reservoir heterogeneities on oil recovery of enhanced foam injection is analyzed numerically, and the implementation plan is optimized.
机译：利用物理模拟和数值模拟的方法，研究了聚合物驱后注入聚合物增强泡沫的可行性。首先，提出了基于实验的聚合物增强泡沫的筛选标准，并研究了聚合物浓度对泡沫流动性的影响。此后，进行聚合物增强的泡沫注入和聚合物驱替之后的常规泡沫注入的并行实验。然后提出了一种Lorentz-Monte-Carlo方法来建立具有不同层间和平面异质性的异质地质模型。因此，数值分析了储层非均质性对增注泡沫的采收率的敏感性，并优化了实施方案。

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