标题： 二元高度不均匀胶体深层过滤的简化模型 显示英文标题

标题： Reduced model for deep bed filtration of binary highly heterogeneous colloids

摘要： 超指数保留曲线（HERPs）在孔隙介质中胶体和纳米悬浮液传输的实验室测试中经常被观察到。 本工作的目的是将传统的悬浮颗粒传输模型（深床过滤）进行扩展，以匹配HERPs。 在“化学反应”颗粒-岩石的活性质量定律框架内解释颗粒捕获，我们将传统捕获率表达式中的悬浮浓度替换为非线性的“活性”函数，称为悬浮函数。 该非线性悬浮函数来源于Margules的过量吉布斯自由能活性模型。 尽管比多组分胶体传输得出的函数少一个未知参数，但该悬浮函数被证明与多组分胶体传输得出的结果有很好的一致性。 给出了经验公式，用于在多组分模型的两个未知参数和Margules指数之间进行转换。 新模型与实验室岩心驱替数据的比较显示良好的一致性，即使在具有明显超指数保留曲线的情况下，经典模型也无法再现实验室数据。 显示英文摘要

摘要： Hyper-exponential retention profiles (HERPs) are often observed during laboratory tests on colloidal and nano-suspension transport in porous media. The aim of this work is an extension of the traditional model for suspended particle transport (deep bed filtration) to match HERPs. Interpreting particle capture in the framework of active mass law for the "chemical reaction" particle-rock, we substitute suspension concentration in the traditional expression for capture rate by non-linear "activity" function, called the suspension function. The non-linear suspension function is derived from Margules' activity model for excess Gibbs free energy. This suspension function is shown to match that derived from multicomponent colloidal transport with good agreement, despite having one less unknown parameter. Empirical formulae are presented to convert between the two unknown parameters of the multicomponent model and the Margules exponent. Comparison between the new model and laboratory coreflooding data shows good agreement, even in cases with distinctly hyper-exponential retention profiles, where the classical model fails to reproduce the laboratory data.