標題: A novel analytical solution for a slug test conducted in a well with a finite-thickness skin
作者: Yeh, Hund-Der
Yang, Shaw-Yang
環境工程研究所
Institute of Environmental Engineering
關鍵字: ground water;slug test;confined aquifer;skin effect;Laplace transforms;closed-form solution
公開日期: 1-Oct-2006
摘要: An aquifer containing a skin zone is considered as a two-zone system. A mathematical model describing the head distribution is presented for a slug test performed in a two-zone confined aquifer system. A closed-form solution for the model is derived by Laplace transforms and Bromwich integral. This new solution is used to investigate the effects of skin type, skin thickness, and the contrast of skin transmissivity to formation transmissivity on the distributions of dimensionless hydraulic head. The results indicate that the effect of skin type is marked if the slug-test data is obtained from a radial two-zone aquifer system. The dimensionless well water level increases with the dimensionless positive skin thickness and decreases as the dimensionless negative skin thickness increases. In addition, the distribution of dimensionless well water level due to the slug test depends on the hydraulic properties of both the wellbore skin and formation zones. (C) 2005 Published by Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.advwatres.2005.11.002
http://hdl.handle.net/11536/11720
ISSN: 0309-1708
DOI: 10.1016/j.advwatres.2005.11.002
期刊: ADVANCES IN WATER RESOURCES
Volume: 29
Issue: 10
起始頁: 1479
結束頁: 1489
Appears in Collections:Articles


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