Introduction |
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Introduction |
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AquiferTest is an easy-to-use software package for analyzing, interpreting and visualizing pumping and slug test data. AquiferTest offers all the tools needed to accurately interpret data from all types of aquifers in all types of test conditions. AquiferTest gives you all the tools you need to efficiently manage hydraulic testing results and provide a selection of the most commonly used solution methods for data analysis - all in an intuitive and easy-to-use environment.
AquiferTest has the following key features and enhancements:
•A comprehensive set of analytical methods and solutions for evaluating aquifer properties
oAnalytical Solution methods for unconfined, confined, leaky confined, and fractured rock aquifers (see below)
oMulti-well and Single well solutions
oStep test/well loss methods
oEasily create and compare multiple analysis methods based on the same data set
•Easy-to-use, intuitive interface
oDockable, customizable tool bar and navigation panels
oWindows clipboard support for cutting and pasting external data into grids, and output graphics directly into your project report
oNumerous short-cut keys to speed program navigation
•Import a wide variety of relevant data formats:
oUniversal Data Logger Import utility (supports a wide variety of column delimiters and file layouts).
oPre-configured support for importing data logger files for In-Situ Level Loggers and Van Essen Diver Dataloggers
oImport well locations and geometry from an ASCII file or Shapefile
oImport water level data from text or Excel format
oSite map support for .dxf files, bitmap (.bmp), and JPEG (.jpg) images, as well as images from tile services
•Professional Features and Utilities:
oProfessional, print-ready reports
oTrend Effects and Barometric CorrectionsPRO
oDerivative drawdown and diagnostic plotsPRO
oDerivative SmoothingPRO
oContouring of drawdown dataPRO
oLugeon (packer) test analysisPRO
AquiferTest provides a flexible, user-friendly environment that will allow you to become more efficient in your aquifer testing projects. Data can be directly entered in AquiferTest via the keyboard, imported from a Microsoft Excel workbook file, or imported from any data logger file (in ASCII format). Test data can also be inserted from a Windows text editor, spreadsheet, or database by cutting and pasting through the clipboard.
Automatic type curve fitting to a data set can be performed for standard graphical solution methods in AquiferTest. However, you are encouraged to use your professional judgment to validate the graphical match based on your knowledge of the geologic and hydrogeologic setting of the test. To refine the curve fit, you can manually fit the data to a type curve using your mouse or the parameter controls.
With AquiferTest, you can analyze three types of test results:
Pumping tests, where water is pumped from a well and the change in water level is measured inside one or more observation wells (or, in some cases, inside the pumping well itself). You can present data in three different forms:
•Time versus water level
•Time versus discharge (applicable for variable rate pumping tests)
•Discharge versus water level (applicable for well performance analysis)
The following pumping test analysis methods are available, with fixed analysis assumptions:
•Theis Recovery
•Cooper-Jacob Type I (Time Drawdown)
•Cooper-Jacob Type II (Distance-Drawdown)
•Cooper-Jacob Type III (Time-Distance-Drawdown)
With these analysis methods, it is not possible to modify the model assumptions. For more details, please see the Section on "Pumping Test Methods - Fixed Assumptions"
The following pumping test analysis methods allow adjusting the model assumptions for customized analysis:
•Theis (1935)
•Hantush-Jacob (Walton) (1955)
•Neuman (1975)
•Theis with Jacob Correction (1944)
•Warren-Root Double Porosity (Fracture Flow) (1963)
•Papadopulos-Cooper (1967)
•Agarwal Recovery (1970)
•Moench Fracture Flow (1984)
•Hantush with storage (1960)
•Neuman-Witherspoon (1969)
•Agarwal Skin Effects (1970)PRO
•Multi-Layer-Aquifer (Hemker & Maas, 1999)PRO
•Horizontal Wells (Clonts and Ramey, 1986)PRO
With these analysis methods, it is possible to adjust the model assumptions to match the pumping test conditions. For more details, please see See "Pumping Test Methods".
The following tests are available for analyzing well performance:
•Specific Capacity Test
•Hantush-Bierschenk Well Losses
•Well Efficiency
Pumping test predictions, also known as forward analyses, can be run using AquiferTest. This version of the pumping test is a streamlined pumping test workflow that does not require water level data, but rather allows you to estimate/predict the response of the aquifer (system) based on your inputs. This workflow simplifies forward analyses in AquiferTest and may be used to facilitate the design of pumping tests or to simulate the response of an aquifer with known (or assumed) properties to various pumping scenarios.
Slug tests, also known as bail tests, where a slug (or known volume) is inserted into a well (or removed from a well) and the corresponding change in water level inside the well is measured over time. You can have data in one form: Time versus water level
The following slug test analysis methods are available:
•Hvorslev (1951)
•Bouwer-Rice (1976)
•Cooper-Bredehoeft-Papadopulos (1967)
•Butler (2003)
•Dagan (1978)
•Binkhorst and Robbins (1998)
Lugeon TestsPRO, also known as Packer Tests, where fractures are isolated using packers and the pressure/flow rate into the formation is incrementally increased and the corresponding flow rate/pressure is measured are used to interpret and analyze the localized hydraulic characteristics of fractured rock formations.
NOTE: the items above denoted by PRO are only available in the AquiferTest Pro Edition.
The following Help Topics are useful for learning how to use AquiferTest:
•For basic on how to use the program, please refer to the Quick Start Tutorials.
•The exercises in Demonstration Exercises and Benchmark Tests will introduce you to applied analysis methods and provide a walk-through of the many features available in AquiferTest.
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