AquiferTest for Windows
The Fastest and Easiest Software Package for Graphical Analysis of Pumping Test and Slug Test Data
Introduction to AquiferTest
Main Features of AquiferTest
AquiferTest Data Input Features
AquiferTest Solution Methods and Analysis Features
AquiferTest Graphical Display and Printing Features
AquiferTest Documentation
AquiferTest Requirements
Introduction to AquiferTest
AquiferTest for Windows is the first pumping test and slug test analysis software package to combine an intuitive and intelligent Windows interface for convenient data entry with graphical data analysis tools and report-quality graphical output capabilities.
The familiar Windows-based environment of AquiferTest makes it very easy to operate, even for first-time users. Handling of the various functions of AquiferTest is facilitated by intuitive icons and comprehensive on-line help instructions. Pumping test or slug test data can be entered into AquiferTest by cutting-and-pasting columns of data from a Windows spreadsheet, direct tabular input with instructional pop-up windows, or importing ASCII data files directly from a data logger.
AquiferTest contains a complete set of analytical solutions for estimating the transmissivity, hydraulic conductivity, and storage properties for confined, unconfined and fractured rock aquifers. The slug test analysis methods include the popular Hvorslev and Bouwer-Rice methods while the pumping test analysis methods include; Theis; Cooper-Jacob; Neuman; Hantush; Moench (unconfined); Moench (fracture flow); Well Performance Tests; Step-Test Analysis; and Recovery Analysis (Theis-Jacob).
The aquifer parameters are obtained by matching type curves or by fitting straight lines to the drawdown data points. Automatic curve matching and manual curve matching capabilities are provided.
High-quality graphical reports of the pumping test and slug test results can be produced in seven different languages (English, French, German, Spanish, Portuguese, Italian and Hungarian). The title blocks for the output are customizable and allow a bitmap of the company logo to be displayed. Comments and additional project descriptions can also be added to the output.
Main Features of AquiferTest
Automatic unit conversions (metric and English units).
Flexible data input methods (import from ASCII data logger file, cut-and-paste from a spreadsheet, or manual keyboard entry).
Accommodates variable pumping rates.
Comprehensive selection of analysis methods for unconfined and confined aquifers.
Plot and analyze data for multiple observation points on the same graph.
Automatic and manual type curve matching.
Easily switch between analysis methods (10 pumping test solutions and 2 slug test solutions).
Print results and tables of data in seven different languages.
AquiferTest Data Input Features
Define the Title Block and Selecting Units
The first step in any pumping test or slug test analysis is to define the location and time of the test and then select the applicable measurement units. AquiferTest prompts you for the title block information that will appear on the final printout of the results and allows you to select from a list of measurement units for time, distance and pumping rate.
These units can be changed at any time during your pumping test analysis and will automatically update the drawdown data and the pumping test results.
This type of flexibility is extremely useful for converting measurement units from the field to be consistent with the common measurement units of the report. It also allows you to report the results in either metric or English Units.
Entering Water Level Data
The most common limitation of pumping test analysis software packages has been that it is often very difficult and/or tedious to get the pumping test or slug test data into the program. AquiferTest has eliminated this time-consuming process with an intuitive interface design and convenient data entry methods:
1. Cut-and-paste columns of data from a spreadsheet or ASCII text file,
2. Import and filter data logger ASCII test files, and
3. Manually enter data using the keyboard.
The data import feature is particularly handy when you have thousands of data points but only a fraction of them are needed for a proper analysis. AquiferTest allows you to filter the data according to a minimum time period or a minimum change in the water level. If one of these criteria is not met then the data point is ignored.
Getting your data into AquiferTest is a task that is conveniently performed in only a minute so you can analyze more data in a fraction of the time it takes with other pumping test analysis packages.
AquiferTest supports both time-drawdown and distance-drawdown data. The water level drawdown data is automatically plotted on a graph for checking anomalous data points and verifying the consistency of the data. Outlying data points are easily identified and can be removed from the group with the click of the mouse.
Pumping Well Data
Once the time-drawdown or distance-drawdown data has been entered, you will be prompted to assign the well pumping schedule information. The well pumping schedule can be either steady state or time variant.
That's all you have to do! Three easy steps and now you are ready to analyze your data using any of the applicable solution methods.
If at any time you are uncertain about the steps involved in creating your data, or if you are not sure which solution method is best suited for your situation, the comprehensive on-line help is only a mouse click away. The on-line help documents all the features and analysis methods and the associated equations and parameters associated with each equation.
AquiferTest Solution Methods and Analysis Features
Solution Methods
AquiferTest comes with a comprehensive selection of pumping test and slug test solutions for estimating the transmissivity, storativity and hydraulic conductivity of unconfined, confined and fractured rock aquifers.
Pumping Test Solutions
Theis
Neuman (no aquitard storage)
Hantush (no aquitard storage)
Moench (partially-penetrating well)
Moench (fractured flow)
Cooper-Jacob (time-drawdown)
Cooper-Jacob (distance-drawdown)
Cooper-Jacob (time-distance-drawdown)
Theis and Jacob Recovery Test
Step Test (Cooper-Jacob)
Well Performance Test
Slug Test Solutions
Hvorslev
Bouwer-Rice
Curve Matching
The aquifer parameters are obtained by matching type curves or by fitting straight lines to the drawdown data points. Automatic curve matching using a least-squares method and manual curve matching using the cursor keys are provided for obtaining the best fit for your drawdown data.
AquiferTest also allows you to easily correct drawdown data for the unconfined condition using the Jacob correction factor (applicable for Theis, Cooper-Jacob, and Theis-Jacob methods).
Multiple Type Curves
For multiple type-curve solution techniques (Neuman, Hantush, and Moench methods), AquiferTest allows you to select and plot customized type curves for more accurately fitting the data to any type-curve value.
AquiferTest implements an innovative approach to dealing with the Neuman analysis method which involves matching both the early time and late time drawdown data. Instead of plotting the early and late time curves separately and trying to matching the data using an iterative approach, AquiferTest allows you to adjust the distance between the late and early time curves until the desired fit is achieved.
The Moench Solutions
These two new methods round out the comprehensive selection of analysis methods provided by AquiferTest to effectively address almost any aquifer condition.
The Moench Method for Partially Penetrating Wells
The Moench solution (Moench, 1993) is an extension of the Neuman solution (Neuman, 1972) for drawdown in a homogeneous, anisotropic, confined or unconfined aquifer, with either a fully or partially-penetrating pumping well and multiple observation wells. The Moench solution also allows water in the overlying unsaturated zone to be released in response to a declining water table either instantaneously or gradually.
The Moench Method for Fractured Flow
In some cases, it is not always acceptable to assume that fractured media can be treated the same as an equivalent porous media. In these isolated cases it is necessary to use a dual-porosity approach where the groundwater flow is treated as a series of low permeability porous blocks separated by hydraulically-connected fractures of high permeability. The Moench Method for fracture flow uses a dual porosity approach and considers both a pseudo-steady-state flow equation, or a transient flow equation which accounts for a fracture skin.
AquiferTest Graphical Display and Printing Features
The ability to visualize and present the results is the final step in your reporting process. In the past, using other software packages, these results were usually hidden in the appendices of a report because of their unsightly graphical quality. Now, with AquiferTest, you can produce high-resolution graphical printouts of the time-drawdown graph, the analysis graph, and a table of data in seven different languages.
Display Preferences
AquiferTest allows you to select from a list of seven different languages for printing the results of your pumping test analysis (English, French, Spanish, German, Portuguese, Italian and Hungarian).
AquiferTest also allows you to preselect and customize the on-screen display preferences including font size, data point marker size and include a bitmap of your company logo.
Printing Options
AquiferTest prints a graphical display of the results and a tabular display of the input data in high resolution and color to any printer or plotter supported by Windows. The print title block contains information such as:
- General company information and a logo (optional),
- Description of the pumping test (project, date, time, pumping well, pumping rate, etc.),
- Type of analysis performed,
- Results of analysis (transmissivity, storativity, specific yield, and hydraulic conductivity), and
- Additional comments.
For pumping tests involving multiple observation points, the data point markers can be distinguished by using a color plot or by different marker symbols.
AquiferTest Documentation
AquiferTest is accompanied by a comprehensive user's manual containing easy-to-follow instructions and a step-by-step tutorial. Free technical support is provided by phone, fax and e-mail.
AquiferTest Requirements: PC 486DX/Pentium, 8 MB RAM, 10 MB free disk space, VGA display and mouse, and Windows 3.x/95/NT.
Τελευταία Ενημέρωση 27 Ιουλίου 2004 - Last Revised on July 27th 2004
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