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首页> 外文期刊>Transport in Porous Media >Dynamic Network Model of Mobility Control in Emulsion Flow Through Porous Media
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Dynamic Network Model of Mobility Control in Emulsion Flow Through Porous Media

机译：多孔介质中乳化液流动性控制的动态网络模型

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摘要

Modeling the flow of emulsion in porous media is extremely challenging due to the complex nature of the associated flows and multiscale phenomena. At the pore scale, the dispersed phase size can be of the same order of magnitude of the pore length scale and therefore effective viscosity models do not apply. A physically meaningful macroscopic flow model must incorporate the transport of the dispersed phase through the porous material and the changes on flow resistance due to drop deformation as it flows through pore throats. In this work, we present a dynamic capillary network model that uses experimentally determined pore-level constitutive relationships between flow rate and pressure drop in constricted capillaries to obtain representative transient macroscopic flow behavior emerging from microscopic emulsion flow at the pore level. A parametric analysis is conducted to study the effect of dispersed phase droplet size and capillary number on the flow response to both emulsion and alternating water/emulsion flooding in porous media. The results clearly show that emulsion flooding changes the continuous-phase mobility and consequently flow paths through the porous media, and how the intensity of mobility control can be tuned by the emulsion characteristics.
机译：由于相关流动的复杂性和多尺度现象，对多孔介质中乳液的流动进行建模非常具有挑战性。在孔尺度下，分散相的大小可以与孔尺度的大小相同，因此不适用有效的粘度模型。物理上有意义的宏观流动模型必须结合分散相通过多孔材料的传输以及由于液滴流经孔喉时的液滴变形而引起的流动阻力变化。在这项工作中，我们提出了一个动态毛细管网络模型，该模型使用实验确定的流量和收缩毛细管中的压降之间的孔隙水平本构关系，以获得在孔隙水平从微观乳液流动中产生的代表性瞬时宏观流动行为。进行参数分析以研究分散相液滴尺寸和毛细管数对多孔介质中乳液和交替水/乳液溢流的流动响应的影响。结果清楚地表明，乳液驱替改变了连续相的迁移率，从而改变了流经多孔介质的流动路径，以及如何通过乳液特性来调节迁移率控制的强度。

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  • 来源
    《Transport in Porous Media》 |2013年第2期|427-441|共15页
  • 作者

    G. L. Nogueira; M. S. Carvalho; V. Alvarado;

  • 作者单位

    Department of Mechanical Engineering, PUC-Rio, Rua Marques de Sao Vicente, 225 Gavea, Rio de Janeiro, RJ 22453-900, Brazil;

    Department of Mechanical Engineering, PUC-Rio, Rua Marques de Sao Vicente, 225 Gavea, Rio de Janeiro, RJ 22453-900, Brazil;

    Department of Chemical and Petroleum Engineering, University of Wyoming, Dept. 3295, 1000 E, University Avenue, Laramie, WY 82071, USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Emulsion; Mobility control; Capillary network model;

    机译：乳液;移动性控制;毛细管网络模型;

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