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Flow imaging of fluids in porous media by magnetization prepared centric-scan SPRITE

机译:通过磁化制备的中心扫描SPRITE对多孔介质中的流体进行流动成像

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摘要

MRI has considerable potential as a non-destructive probe of porous media, permitting rapid quantification of local fluid content and the possibility Of local flow Visualization and quantification. Ill this work we explore a general approach to flow velocity measurement in porous media by combining Cotts pulsed field gradient flow encoding with SPRITE MRI. This technique permits facile and accurate flow and dispersion coefficient mapping of fluids in porous media. This new approach has proven to be robust in characterizing fluid behavior. This method is illustrated through measurements of flow in pipes, flow in sand packs and flow ill porous reservoir rocks. Spatially resolved flow maps and local fluid velocity distribution were acquired.
机译:MRI作为多孔介质的非破坏性探头具有巨大的潜力,可以快速量化局部流体含量,并可以进行局部流动的可视化和量化。在这项工作中,我们将结合Cotts脉冲场梯度流编码和SPRITE MRI,探索一种在多孔介质中测量流速的通用方法。该技术允许在多孔介质中轻松,准确地绘制流体的流动系数和弥散系数。事实证明,这种新方法在表征流体行为方面很强大。通过测量管道中的流量,沙包中的流量以及生疏的多孔储层岩石来说明该方法。获得空间分解的流量图和局部流体速度分布。

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