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Published in: Hydrogeology Journal 3/2024

29-12-2023 | Paper

Method of evaluating the radius of influence of a circulating well based on hydraulic head difference

Authors: Fanfan Zhang, Huan Zhu, Dan Zhang, Ruyi Feng, Yan Zhao, Hongwei Liu, Shengke Yang, Wenke Wang

Published in: Hydrogeology Journal | Issue 3/2024

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Abstract

The radius of influence of a vertical circulation well was studied, taking the difference between the hydraulic head caused by the operation of the vertical circulation well and the initial state of the hydraulic head as the index. Based on the influence of well operation, the aquifer properties and technical parameters of the vertical circulation well on hydraulic head difference, an evaluation method for determining the radius of influence of the well was constructed. The software COMSOL Multiphysics was used to simulate the variation in hydraulic head and the flow field under different working conditions. The results show that increasing the operating time and flow rate, with an increased horizontal permeability, could lead to an increase of the influence radius, while an increase in the vertical permeability could lead to a decrease in the influence radius. Running time, horizontal permeability, vertical permeability, the distance between the lower screen section and the waterproof bottom plate, and the distance between the upper and lower screen sections, all have a great influence on the flow field. Thus, a calculation formula for quantitatively estimating the radius of influence of vertical circulation wells was obtained.

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Appendix
Available only for authorised users
Literature
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Metadata
Title
Method of evaluating the radius of influence of a circulating well based on hydraulic head difference
Authors
Fanfan Zhang
Huan Zhu
Dan Zhang
Ruyi Feng
Yan Zhao
Hongwei Liu
Shengke Yang
Wenke Wang
Publication date
29-12-2023
Publisher
Springer Berlin Heidelberg
Published in
Hydrogeology Journal / Issue 3/2024
Print ISSN: 1431-2174
Electronic ISSN: 1435-0157
DOI
https://doi.org/10.1007/s10040-023-02754-y

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