Results 91 to 100 of about 399,720 (138)

Step‐drawdown tests

International Journal of Water Resources Development, 1991
S. M. Alam
openaire   +2 more sources

Step Drawdown Test Analysis

Groundwater Pumping Tests, 2019
W. Walton
openaire   +2 more sources

Transient analysis of a step-drawdown test using a time-varying well-loss equation

Hydrogeology Journal, 2022
Hyowon An, Kyoochul Ha, Eunhee Lee
openaire   +2 more sources

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   +2 more sources

Step‐Drawdown Test Analysis by Computer

Groundwater, 1975
ABSTRACT Many geohydrologists believe that the step‐drawdown test is useful in determining many important characteristics of a well, whereas others altogether question its utility. In addition to this controversy, its application is hindered because the graphical analysis of data is unwieldy.
John W. Labadie, Otto J. Helweg
openaire   +1 more source

Memorandum on multiple-step drawdown tests, Southwest well field, Houston, Texas, February 1949

Open-File Report, 1949
M. I. Rorabough
openaire   +2 more sources

Optimization of Groundwater Well Discharge Capacity Using Step Drawdown Test Post-Earthquake in Biromaru, Sigi District, Central Sulawesi

Jambura Geoscience Review
The effectiveness of groundwater wells in tectonically active regions remains insufficiently understood due to the lack of integrative hydrogeological evaluations.
Harly Hamad, Muhammad Aswadi, Cindy Ziqni Noviar Lapalani   +2 more
semanticscholar   +1 more source

Type‐Curve Solution of Step‐Drawdown Test

Groundwater, 1971
Abstract A set of type‐curves is presented which simplifies and quickens the solution of the Rorabaugh equation for drawdown in a pumping well by eliminating the trial‐and‐error computations. Type‐curve analysis of test data in the field, before pumping is discontinued, provides an indication of the accuracy and adequacy of test data ...
openaire   +1 more source

Analysis and Application of Step-Drawdown Test

Journal of the Hydraulics Division, 1966
A review of the theory behind the step-drawdown test shows that the analytical method developed by Rorabaugh should be routinely used to discriminate among various types of flow and to determine more accurately flow parameters. The usual analysis for one selected time after the beginning of each step should be supplemented by a consideration of test ...
openaire   +1 more source

A General Solution to the Step‐Drawdown Test

Groundwater, 1994
Abstract A more general solution to the step‐drawdown test, called the General Well Function, GWF, is proposed to replace the classic Jacob's step‐drawdown equation for situations when the time that wells are continuously pumped varies greatly. Jacob's equation requires a preselected discharge duration and does not incorporate time as
openaire   +1 more source