Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021WR029804 |
Multirate mass transfer approach for double-porosity poroelasticity in fractured media | |
Sandro André; s; Marco Dentz; Luis Cueto-Felgueroso | |
2021-07-19 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | Natural and anthropogenic fractured aquifers and reservoirs are dual porosity matrix-fracture systems, where the fracture network provides highly–conductive flow pathways and the low–permeability matrix stores most of the fluid. The coupling between flow and mechanical deformation in fractured media is often modeled using the classical theory of dual-porosity poroelasticity (DPP), based on Barenblatt's hypothesis of pressure equilibrium inside the rock matrix blocks. Equilibrium can be expected if the matrix blocks are small and the matrix diffusion time is comparable to the flow time scales along the fractures. In practice, matrix blocks may be large enough so that diffusion time scales are long, and the equilibrium hypothesis breaks down. Here we study non–equilibrium effects in coupled flow and deformation in fractured media. We compare analytical predictions and modeling results of coupled flow and deformation in heterogeneous fractured porous media. The theoretical analysis is a non–equilibrium, dual-porosity model. We use this theory to a) Reveal the limitations of classical DPP formulations. b) Obtain the scalings for drainage and displacement to be expected for coupled flow and deformation in highly–heterogeneous, fractured media. c) Identify what behavior to expect in fractured aquifers and reservoirs regarding flow and deformation. We observe strong tailing in fluid fluxes and land subsidence that cannot be captured by the classical DPP approach or a single porosity effective medium approach. We show that theoretical predictions from the multirate DPP model and high-fidelity models agree, even for highly heterogeneous matrix-fracture systems, and reproduce the observed non–equilibrium effects. This article is protected by copyright. All rights reserved. |
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/333865 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Sandro André,s,Marco Dentz,et al. Multirate mass transfer approach for double-porosity poroelasticity in fractured media[J]. Water Resources Research,2021. |
APA | Sandro André,s,Marco Dentz,&Luis Cueto-Felgueroso.(2021).Multirate mass transfer approach for double-porosity poroelasticity in fractured media.Water Resources Research. |
MLA | Sandro André,et al."Multirate mass transfer approach for double-porosity poroelasticity in fractured media".Water Resources Research (2021). |
条目包含的文件 | 条目无相关文件。 |
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