Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR025960 |
Patch-Based Multiscale Algorithm for Flow and Reactive Transport in Fracture-Microcrack Systems in Shales | |
Wang, Ziyan; Battiato, Ilenia | |
2020-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2020 |
卷号 | 56期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A major challenge in modeling reactive transport in shales is the multiscale nature of the fractured rock system. Shales may contain a few main fractures and thousands of microcracks whose length and aperture are orders of magnitude smaller than the former. This renders fully resolved simulations too expensive, while traditional upscaling methods cannot accurately capture fracture clogging dynamics due to precipitation. We develop a fully coupled patch-based multiscale algorithm to address this issue: We solve reactive transport only in a few selected microcracks, while evaluating the others by interpolation and ensuring top-down bottom-up coupling between the main fracture and the microcracks. Specifically, we consider a fracture system with an array of hundreds of microcracks connected to a main fracture. The patch-based multiscale algorithm is validated against fully resolved pore-scale simulations and a steady-state analytical solution. We find the reaction rate can have a great impact on the concentration profiles after breakthrough, even if the profiles before breakthrough are similar. Also, the breakthrough curves exhibit three dynamic regimes when microcrack aperture alterations are accounted for. |
英文关键词 | shales patch-based multiscale algorithm reactive transport |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535672800005 |
WOS关键词 | POROUS-MEDIA ; PORE ; GAS ; SIMULATION ; DIFFUSION ; CONTINUUM ; MODELS ; WATER ; OIL ; PRECIPITATION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
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/280547 |
专题 | 资源环境科学 |
作者单位 | Stanford Univ, Dept Energy Resources Engn, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Wang, Ziyan,Battiato, Ilenia. Patch-Based Multiscale Algorithm for Flow and Reactive Transport in Fracture-Microcrack Systems in Shales[J]. WATER RESOURCES RESEARCH,2020,56(2). |
APA | Wang, Ziyan,&Battiato, Ilenia.(2020).Patch-Based Multiscale Algorithm for Flow and Reactive Transport in Fracture-Microcrack Systems in Shales.WATER RESOURCES RESEARCH,56(2). |
MLA | Wang, Ziyan,et al."Patch-Based Multiscale Algorithm for Flow and Reactive Transport in Fracture-Microcrack Systems in Shales".WATER RESOURCES RESEARCH 56.2(2020). |
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