Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026587 |
Verifying pore network models of imbibition in rocks using time‐resolved synchrotron imaging | |
Tom Bultreys; Kamaljit Singh; Ali Q. Raeini; Leonardo C. Ruspini; På; l‐; Eric Ø; ren; Steffen Berg; Maja Rü; cker; Branko Bijeljic; Martin J. Blunt | |
2020-05-24 | |
发表期刊 | Water Resources Research |
出版年 | 2020 |
英文摘要 | At the pore scale, slow invasion of a wetting fluid in porous materials is often modelled with quasi‐static approximations which only consider capillary forces in the form of simple pore filling rules. The appropriateness of this approximation, often applied in pore network models, is contested in the literature, reflecting the difficulty of predicting imbibition relative permeability with these models. However, validation by sole comparison to continuum‐scale experiments is prone to induce model overfitting. It has therefore remained unclear whether difficulties generalizing the model performance are caused by errors in the predicted filling sequence or by subsequent calculations. Here, we address this by examining whether such a model can predict the pore‐scale fluid distributions underlying the behaviour at the continuum scale. To this end, we compare the fluid arrangement evolution measured in fast synchrotron micro‐CT experiments on two rock types to quasi‐static simulations which implement capillary‐dominated pore filling and snap‐off, including a sophisticated model for cooperative pore filling. The results indicate that such pore network models can in principle predict fluid distributions accurately enough to estimate upscaled flow properties of strongly‐wetted rocks at low capillary numbers. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/270415 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Tom Bultreys,Kamaljit Singh,Ali Q. Raeini,等. Verifying pore network models of imbibition in rocks using time‐resolved synchrotron imaging[J]. Water Resources Research,2020. |
APA | Tom Bultreys.,Kamaljit Singh.,Ali Q. Raeini.,Leonardo C. Ruspini.,På.,...&Martin J. Blunt.(2020).Verifying pore network models of imbibition in rocks using time‐resolved synchrotron imaging.Water Resources Research. |
MLA | Tom Bultreys,et al."Verifying pore network models of imbibition in rocks using time‐resolved synchrotron imaging".Water Resources Research (2020). |
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