標題: Solution for flow rates across the wellbore in a two-zone confined aquifer
作者: Yang, SY
Yeh, HD
環境工程研究所
Institute of Environmental Engineering
關鍵字: flow rates;ground water;numerical analysis;aquifers
公開日期: 1-二月-2002
摘要: A closed-form solution for transient flow rates across the wellbore in a confined aquifer is derived from a two-zone radial ground-water flow equation subject to the boundary condition of keeping a constant head at the well radius. An aquifer may be considered as a two-zone system if the formation properties near the wellbore are significantly changed due to the well construction and/or well development. An efficient numerical approach is used to evaluate this newly derived solution. Values of the transient flow rate are provided in a tabular form and compared with those obtained by numerical inversion for the Laplace-domain solution. The results show that the two solutions are in good agreement. This newly derived solution can be used not only for predicting the transient flow rate across the wellbore but also for identifying the effects of a skin with a finite thickness on the estimation of transient flow rates in a ground-water system with two different formation properties.
URI: http://dx.doi.org/10.1061/(ASCE)0733-9429(2002)128:2(175)
http://hdl.handle.net/11536/29046
ISSN: 0733-9429
DOI: 10.1061/(ASCE)0733-9429(2002)128:2(175)
期刊: JOURNAL OF HYDRAULIC ENGINEERING-ASCE
Volume: 128
Issue: 2
起始頁: 175
結束頁: 183
顯示於類別:期刊論文


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