NMR applications to multiphase flow in porous media: macroscopic behavior from pore-scale processes

核磁共振在多孔介质多相流中的应用：孔隙尺度过程的宏观行为

• 批准号: 194309-2008
• 负责人: Ioannidis, Marios
• 金额: $ 1.86万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=496775
• 关键词: NMR; applications; multiphase; flow; porous

Multiphase flow in porous media is encountered in a great variety of engineering applications. Whereas the time evolution and spatial structure of fluid saturation depends on the applied pressure gradient or fluid injection rate, viscosity ratio, microscopic structure, macroscopic heterogeneity and relative affinity of the fluid phases for the solid surface (wettability), description of multiphase flow in porous media continues to rely on a continuum phenomenological equation (multiphase Darcy's law), which introduces the relative permeability and capillary pressure functions. The measurement and subsequent interpretation of these functions in terms of pore-scale physics under dynamic conditions is still the subject of considerable debate.

多孔介质中的多相流在工程应用中有着广泛的应用。 而流体饱和度的时间演化和空间结构取决于所施加的压力梯度或流体注入速率、粘度比、微观结构、宏观非均质性以及流体相对固体表面的相对亲合力（润湿性），多孔介质中多相流的描述仍然依赖于一个连续统唯象方程（多相达西定律），它引入了相对渗透率和毛管压力函数。 这些功能的测量和随后的解释，在动态条件下的孔隙尺度物理仍然是相当大的辩论的主题。