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DOI | 10.1029/2019GL084762 |
Roughness Control on Multiphase Flow in Rock Fractures | |
Hu, Ran1,2; Zhou, Chen-Xing1,2; Wu, Dong-Sheng1,2; Yang, Zhibing1,2; Chen, Yi-Feng1,2 | |
2019-11-06 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The roughness of rock fractures induces irregular flow passages and significantly affects the displacement front. Previous studies focus on displacement instabilities in porous media, but how roughness controls displacement patterns in rock fractures remains unclear. Here, we derive a theoretical model that describes the two transitions of drainage displacement patterns from capillary fingering to the crossover to viscous fingering as functions of roughness. The phase diagram predicted by this model exhibits excellent agreement with our experimental results, showing that increasing roughness index lambda(b) destabilizes displacement fronts. We further find that in capillary fingering regime the percentage of dissipated energy to the total external work increases from 39% to 61% as lambda(b) increases from 0.082 to 0.245. Our work elucidates the mechanism of roughness control on multiphase flow in fractures and provides a basis for developing a rigorous upscaling methodology that relates Darcy-scale flow behavior to the local fluid displacements via energy dissipation. |
英文关键词 | multiphase flow rock fractures displacement pattern phase diagram energy dissipation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000494642500001 |
WOS关键词 | POROUS-MEDIA ; 2-PHASE FLOW ; IMMISCIBLE DISPLACEMENTS ; INVASION PERCOLATION ; FLUID DISPLACEMENT ; WALLED FRACTURES ; PHASE-DIAGRAM ; CAPILLARY ; PRESSURE ; PERMEABILITY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/188259 |
专题 | 气候变化 |
作者单位 | 1.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Hubei, Peoples R China; 2.Wuhan Univ, Minist Educ, Key Lab Rock Mech Hydraul Struct Engn, Wuhan, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Hu, Ran,Zhou, Chen-Xing,Wu, Dong-Sheng,et al. Roughness Control on Multiphase Flow in Rock Fractures[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Hu, Ran,Zhou, Chen-Xing,Wu, Dong-Sheng,Yang, Zhibing,&Chen, Yi-Feng.(2019).Roughness Control on Multiphase Flow in Rock Fractures.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Hu, Ran,et al."Roughness Control on Multiphase Flow in Rock Fractures".GEOPHYSICAL RESEARCH LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
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