Pumping Test Analysis

Solution Methods
Variable Pumping Rates
Interference Test
Multiple Pumping Wells
Predictive Modeling

AQTESOLV Advantage

AQTESOLV features the most comprehensive set of solution methods for confined, leaky confined, unconfined and fractured aquifers.

"I use AQTESOLV in my Hydrology and Water Resources 603 graduate class on well hydraulics and pumping test analysis."
--Dr. Shlomo P. Neuman, University of Arizona

What is the best software for pumping test analysis? In a recent LinkedIn poll, groundwater professionals overwhelmingly chose AQTESOLV as their preferred pumping test analysis software.

AQTESOLV is advanced software for pumping test data analysis that features the most comprehensive set of solution methods for confined, leaky confined, unconfined and fractured aquifers.

constant-rate pumping tests
variable-rate pumping tests including recovery, intermittent and sinusoidal pumping
single-well tests
interference tests (one or more observation wells)
step-drawdown tests
one or more pumping wells
bounded aquifers
prediction and test design

Pumping tests are alternately known as pump tests, aquifer tests and aquifer performance tests (APTs).

Summary of Pumping Test Solutions

Make AQTESOLV your choice for pumping test analysis software to get a complete package for constant- and variable-rate pumping tests, recovery tests, sinusoidal tests, single-well tests, step-drawdown tests, tests with multiple pumping wells, automatic image well generation, predictive simulation and pumping test design, and more.

Summary of Pumping Test Solutions in AQTESOLV Pro
Solution Category	Methods Available
Constant-Rate Tests	35
Variable-Rate Tests	34
Recovery Tests	33
Step-Drawdown Tests	3
Partial Penetration	16
Wellbore Storage	12
Wellbore Skin	13
Bounded Aquifers	23
Delayed Obs. Well Response	5
Horizontal Well	2
Confined Aquifers	14
Leaky Aquifers	9
Unconfined Aquifers	5
Fractured Aquifers	7

Compare pumping test solutions in the Pro and Standard versions.

Constant-Rate Pumping Tests

AQTESOLV provides the most complete suite of methods for the interpretation of constant-rate and variable-rate pumping tests.

The figure below illustrates the application of the Tartakovsky and Neuman (2007) solution for a constant-rate pumping test in an unconfined aquifer with three-dimensional saturated/unsaturated flow and noninstantaneous drainage at the water table.

Analysis of a pumping test in an unconfined aquifer with noninstantaneous drainage — Analysis of a constant-rate pumping test in an anisotropic unconfined aquifer with noninstantaneous response at the water table (Tartakovsky and Neuman 2007).

Variable-Rate Pumping Tests

With AQTESOLV you are not limited to the analysis of traditional constant-rate pumping tests; interpretation of variable-rate conditions is also possible for situations including step-drawdown tests, recovery tests and sinusoidal pumping tests.

Analysis of a sinusoidal pumping test — Displacement measured during a sinusoidal variable-rate pumping test in which the rate varied through several cycles of extraction and injection (Rasmussen et al. 2003).

Multiple Observation Wells (Interference Tests)

With AQTESOLV you may perform pumping test data analysis with more than one observation well.

Channel aquifer (Estavan) — Analysis of drawdown measured in pumped well and three observation wells during a constant-rate pumping test in a buried channel (strip) aquifer near Estevan, Saskatchewan, Canada (Walton 1970).

The buried channel aquifer example shown above uses a powerful feature in AQTESOLV that automatically generates image wells to model the effect of aquifer boundaries.

You also may perform distance-drawdown analysis in AQTESOLV to interpret pumping test data from more than one observation well. For a specific measurement time, drawdown is plotted as a function of the radial distance from the pumping well to the observation well.

Multiple Pumping Wells

Use AQTESOLV to analyze pumping tests with more than one pumping well. Each well may have its own unique geometry (e.g., penetration depths) and pumping rate schedule. AQTESOLV places no internal limit on the total number of pumping wells that you may use.

Analysis of pumping test with antecedent injection — Analysis of drawdown measured in observation well during constant-rate extraction test in an unconfined aquifer including residual effect of prior injection test at off-site well.

Predictive Modeling (Forward Solution)

You may use pumping test solutions in AQTESOLV to predict the magnitude and extent of drawdown for extraction and/or injection scenarios involving multiple pumping wells.

Extraction well array — Drawdown prediction (forward solution) for an array of 15 extraction wells.