# Pumping Test Analysis

* 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 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*.

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.

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.

Distance-drawdown plot showing three observation wells monitored during a constant-rate pumping test in a leaky confined aquifer (USBR 1995).

## 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 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.

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

** See also:**
pumping tests,
constant-rate
tests,
bounded aquifers