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DOI | 10.1002/2017WR020824 |
Analytical Solutions to Coupled HM Problems to Highlight the Nonlocal Nature of Aquifer Storage | |
De Simone, Silvia1,2,3; Carrera, Jesus1,3 | |
2017-11-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain |
英文摘要 | Specific storage reflects the volumetric deformation capacity of permeable media. Classical groundwater hydrology equates elastic storage to medium compressibility (plus fluid compressibility times porosity). However, it is unclear if storage behavior can be represented by a single parameter. Hydraulic gradients act as body forces that push the medium in the direction of flow causing it to deform instantaneously everywhere, i.e., even in regions where pressure would not have changed according to conventional fluid flow. Therefore, actual deformation depends not only on the mechanical properties of the medium but also on aquifer geometry and on surrounding strata, which act like constraints to displacements. Here we discuss the question and highlight the nonlocal nature of storage (i.e., the volume of water released at a point depends on the poroelastic response over the whole aquifer). Proper evaluation of transient pressure and water release from storage requires acknowledging the hydromechanical coupling, which generally involves the use of numerical methods. We propose analytical solutions to the HM problem of fluid injection (extraction) into finite aquifers with one-dimensional or cylindrical geometries. We find that pressure response is much faster (virtually instantaneous) and larger than expected from traditional purely hydraulic solutions when aquifer deformation is restrained, whereas the pressure response is reversed (i.e., pressure drop in response to injection) when the permeable medium is free to deform. These findings suggest that accounting for hydromechanical coupling may be required when hydraulic testing is performed in low permeability media, which is becoming increasingly demanded for energy-related applications. |
英文关键词 | HM coupling storage process aquifer deformation |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418736700051 |
WOS关键词 | PUMPING TESTS ; DEFORMATION ; COEFFICIENT ; MOVEMENT ; STRAIN |
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/21426 |
专题 | 资源环境科学 |
作者单位 | 1.CSIC, Inst Environm Assessment & Water Res, Barcelona, Spain; 2.Univ Politecn Cataluna, Dept Civil & Environm Engn, Barcelona, Spain; 3.Univ Politecn Cataluna, Associated Unit, Hydrogeol Grp, CSIC, Barcelona, Spain |
推荐引用方式 GB/T 7714 | De Simone, Silvia,Carrera, Jesus. Analytical Solutions to Coupled HM Problems to Highlight the Nonlocal Nature of Aquifer Storage[J]. WATER RESOURCES RESEARCH,2017,53(11). |
APA | De Simone, Silvia,&Carrera, Jesus.(2017).Analytical Solutions to Coupled HM Problems to Highlight the Nonlocal Nature of Aquifer Storage.WATER RESOURCES RESEARCH,53(11). |
MLA | De Simone, Silvia,et al."Analytical Solutions to Coupled HM Problems to Highlight the Nonlocal Nature of Aquifer Storage".WATER RESOURCES RESEARCH 53.11(2017). |
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