Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR027155 |
A numerical study of slug tests in a three‐dimensional heterogeneous porous aquifer considering well inertial effects | |
Quan Liu; Linwei Hu; Peter Bayer; Yixuan Xing; Pengxiang Qiu; Thomas Ptak; Rui Hu | |
2020-08-17 | |
发表期刊 | Water Resources Research |
出版年 | 2020 |
英文摘要 | The slug test is a common field technique for obtaining local hydraulic parameters near wells, applied for example for the hydrogeological investigation at contaminated sites. Although many slug test models have been developed for interpretation of measurements, only a few of them have considered heterogeneous conditions, and water column inertial effects are usually neglected. In this paper, we propose a novel three‐dimensional slug test model (3DHIM) for application in heterogeneous aquifers, considering inertial effects associated with skin effects and linear friction forces. After comparison with existing analytical and numerical solutions of slug tests, the model is applied to an aquifer analog to simulate a series of slug tests. The results from single‐well slug tests show that the well geometry (i.e. the well radius, well depth and screen length) has an impact on the water level response. For cross‐well slug tests, the results indicate that the water level fluctuations not only include information on the hydraulic signal propagation process in the aquifer but also on well characteristics, such as wellbore storage and inertial effects. These effects cause a phase shift and amplitude change of the water level fluctuation. As the observation and test wells have a good hydraulic connection and similar well geometry, the water level amplitude could be amplified relative to aquifer pressure at the measured position. Therefore, we suggest considering wellbore storage and in‐well inertial effects in slug test based subsurface investigations, otherwise the parameter estimates based on well water levels may include errors, particularly in highly permeable layers. |
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/291101 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Quan Liu,Linwei Hu,Peter Bayer,等. A numerical study of slug tests in a three‐dimensional heterogeneous porous aquifer considering well inertial effects[J]. Water Resources Research,2020. |
APA | Quan Liu.,Linwei Hu.,Peter Bayer.,Yixuan Xing.,Pengxiang Qiu.,...&Rui Hu.(2020).A numerical study of slug tests in a three‐dimensional heterogeneous porous aquifer considering well inertial effects.Water Resources Research. |
MLA | Quan Liu,et al."A numerical study of slug tests in a three‐dimensional heterogeneous porous aquifer considering well inertial effects".Water Resources Research (2020). |
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