Results 191 to 200 of about 8,442,772 (211)

Interpreting Step‐Drawdown Pumping Test Undergoing Confined‐Unconfined Conversion with Well Loss

Groundwater
Abstract The step‐drawdown pumping test often experiences a transition from confined to unconfined conditions due to the continuously increasing pumping rate. However, the current well hydraulics model has not accurately interpreted this phenomenon. In this study, we developed an analytical solution to address the
Lu Zhang, Hua Zhao, Ling Wang, Jianmei Liu, Qi Zhu, Na Li, Zhang Wen, Yizhao Wang, Dian Wang   +8 more
openaire   +2 more sources

Borehole restoration methods and their evaluation by step-drawdown tests: the case history of a detailed study in Northern Italy

Quarterly Journal of Engineering Geology, 1988
The effectiveness of borehole restoration techniques on recharge boreholes has been assessed by repetitive step-drawdown tests. The step-drawdown tests were run with up to 10 steps and repeated up to five times on a single borehole. The borehole restorations after well-clogging by recharge show that the chemical methods of acidization and ...
L. Clark, M. Radini, P. L. Bison
openaire   +1 more source

Step-drawdown test for identifying aquifer and well loss parameters in a partially penetrating well with irregular (non-linear increasing) pumping rates

Journal of Hydrology, 2022
Zhang Wen, Hamza Jakada, Anders Wörman
exaly  

Step‐drawdown tests

International Journal of Water Resources Development, 1991
openaire   +1 more source

Investigation of the Variation in Well Performance over Time Using Step Drawdown Tests

2017
The purpose of this study is to investigate thevariation in well performance over years by performing step drawdown test. Thewell used in this study was drilled by Neojen Engineering in the unconfinedaquifer in Bursa Küçük Sanayi region and is 27 meters deep. The first stepdrawdown test was carried out on November 2, 2012. The test was repeated onMarch
ERYILMAZ TÜRKKAN, Gökçen, KORKMAZ, Serdar   +1 more
openaire   +2 more sources

Analysis and planning of step drawdown tests

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1978
openaire   +1 more source

Step drawdown tests and slug tests: permeability distribution in an area of the middle Venetian plain (Veneto Region, Northeast Italy)

2014
This article presents the results of a hydrogeological investigation conducted near Scorzé (Treviso, Italy), where several step drawdown tests and slug tests were conducted to characterize a confined aquifer. The studied area, which covers 94000 m2 in the provinces of Venice, Treviso and Padua, is located in the middle Venetian plain (Fig. 1).
FABBRI, PAOLO, A. Rosignoli, E. Marcolongo, PICCININI, LEONARDO, P. Zangheri   +4 more
openaire   +2 more sources

Step Drawdown Test Analysis

2019
openaire   +1 more source

Assessment of well performance criteria and aquifer characteristics using step-drawdown tests and hydrogeochemical data, west of Qena area, Egypt

Journal of African Earth Sciences, 2018
Fathy Abdalla, Karem Moubark
exaly  

Principle of superposition versus control volume finite difference approach in analyzing the step-drawdown test data

International Journal of Environmental Science and Technology, 2023
L. N. Gunawardhana, S. Ahmed, A. Sana, M. S. Baawain   +3 more
openaire   +1 more source