The test is intended for use in confined aquifers although may be extended to unconfined aquifers in many cases. One well field test for determining hydraulic conductivity k entails. Post test procedure make a preliminary analysis of the data before leaving the test area. The two procedures described here for the analysis of slug tests in formations of high hydraulic conductivity implement straightforward extensions of models previously proposed for tests in lesspermeable formations bouwer and rice, 1976. Slug test responses can run the gamut from overdamped to underdamped. Designed by hydrogeologists for hydrogeologists, aquifertest delivers all the tools needed to accurately interpret data from all types of aquifers in all types of test. The slug test method is one of a number of different methods that are used to evaluate the permeability or hydraulic conductivity of an aquifer. The slug test analysis software is a graphical interface used to model the data collected from a slug test conducted in direct push tools or conventional monitoring wells that provide either an over damped or underdamped response. This is made easy with pumping test and slug test data analysis software that offers a variety of. Spreadsheets for the analysis of aquifertest and slugtest. Spreadsheets for the analysis of aquifer test and slug test data, version 1. This is accomplished by displacing a known volume of water from a well and measuring the artificial fluctuation of the groundwater level.
Time lag and soil permeability in groundwater observations. It is also one of the most challenging as a result of the variability in field conditions and solution methods. Aqtesolv is the most advanced software for slug test analysis and features the most comprehensive set. Slug test analysis when initial groundwater table is below. Computer programs for aquifer evaluation by slug test and other methods are most commonly used to interpret the raw slug test. The natural logarithm of drawdown is plotted against the time since the start of the test. Aquifertest pumping test and slug test analysis and. Spreadsheets for the analysis of aquifer test and slugtest data, version 1. A slug test involves the instantaneous injection or withdrawal of a volume or slug of water or solid cylinder of known volume. Super slugs hvorslev method also supports partial penetration. Pdf methods of interpretation of borehole fallinghead. Two classes of solutions are generally used in evaluating slug test data.
The slug test analysis sta software is a simple, userfriendly software package designed for use with slug test data obtained with the geoprobe systems gw1600 pneumatic slug test kit. Slug tests have been used extensively to measure hydraulic conductivity in the last fifty years since hvorslev s work. Slug tests for determination of hydraulic conductivity of. Software for slug test analysis by hydrosolve, inc. This method was originally published in an article entitled slug test procedure to evaluate hydraulic conductivity of an aquifer applicable to fully or partially penetrating wells in unconfined aquifers. This tool is based on the hvorslev 1951 slug recovery test see freeze and cherry 1979, p340. An assessment of the nguyen and pinder method for slug test. For example, the effects of resource development or of contaminant remediation depend critically upon the insitu hydraulic conductivity. Different common slug test analysis methods are compared, including bouwer and rice 1976, hvorslev 1951, dagan. Similar to the pumping test analysis, you can use the parameter controls to adjust parameters in the slug test analyses. Analysis involves matching a straight line to waterlevel displacement data collected during an overdamped slug test. Spreadsheets for the analysis of aquifer test and slug test data. The basic hvorslev equation, if the length of the piezometer. The standard std version provides a set of pumping test and slug test solutions comparable to other commercially available software packages.
Analysis of slug tests in formations of high hydraulic conductivity general overview. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slugtest data. The hvorslev slug test is designed to estimate the hydraulic conductivity of an aquifer. The slug of water can either be added to or removed from the well the only requirement is that it be done as quickly as possible the interpretation typically assumes instantaneously, then the water level or pressure is monitored. Automated analysis of slug test data sciencedirect. For problems downloading these spreadsheets, or any part of this report, please email the nevada district public information assistant or call 775 8877649. A mathematical solution by hvorslev 1951 is useful for determining the hydraulic conductivity k of nonleaky confined aquifers. Super slug provides extensive flexibility for fitting the line to data. Slug tests in unconfined aquifers scholarworks at wmu. H 0 is the difference between the pre test level and the highest level immediately after insertion of the slug, h is the difference between the pre test level and the level at some time t after the insertion of the slug. Different common slug test analysis methods are compared, including bouwer and rice 1976, hvorslev. The slug test acquisition software included with the gw1600 kit is loaded on a portable computer and used to observe and acquire slug test data in the field. Kgsofr 200040simple procedures for analysis of slug tests.
Contribute to vubhydrslugtest development by creating an account on github. Automated analysis of slug test data 93 summary this automated typecurve matching scheme analyzes field slug test data and detmmines the aquifer tnummis sivity and skin factor wellbore dmuage. The professional pro version offers the most complete set of aquifer test solutions. Hvorslevs transient solution omits storativity of the formation and assumes quasisteadystate flow between the control well and the tested formation. Danishamerican geotechnical engineer mikael juul hvorslev 18951989 introduced an approximate.
Choose aqtesolv to get the most advanced software for slug test analysis including methods for single and multiwell tests, overdamped and underdamped. This repository includes python scripts for the plotting and analysis of rising head slugtests. Nov 23, 2009 reverse test if desired, after a slug in test has been finished and equilibrium reached, a slug out test can be performed as a check. The professional pro version offers the most complete set of aquifer test. In the theis analysis, the transmissivity t and storativity s were calculated. The class of solutions which includes the bouwer and rice, and hvorslev methods relies on the assumption that water and soil are incompressible that is, aquifer storativity is zero. Slug test and pump test analysis software for windows. The method uses the analytical solution of ramey et al. Python scripts for the plotting and analysis of risinghead slugtests. Slug test for determining hydraulic conductivity of unconfined aquifers with. Aquifertest is an easytouse software package for analyzing, interpreting and visualizing pumping and slug test. Aquifertest is now a 64bit application with improved performance. Kgsofr 200026analyzing slug tests for maximum accuracy.
Oct 09, 2017 graphical determination of hydraulic conductivity. Spreadsheets for the analysis of aquifer test and slug test data article in ground water 411. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slugtest. The analysis portion of the test should form a straight line portion of the response curve. May 10, 2016 see how to set up a slug test in aqtesolv for manual and automated hvorslev type curve fitting. Slug test method measurement of hydraulic conductivity.
Aquifertest for windows pumping test and slug test. Hvorslev 1951 pioneered the development of insitu field tests, particularly the slug test. Praise for hydro geoanalyst hydro geoanalyst is a very flexible tool for data management and analysis. 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. The slug test analysis software is a graphical interface used to model the data collected from a slug test. The primary advantages of using slug tests to estimate hydraulic conductivities. In situ estimates of ground water contamination, author butler, j.
I lots of complicated math and analysis, the bottom line is that ow tofrom a well in an extensive aquifer is radial, and can. This is the only slug test analysis method that will provide an estimate of aquifer storativity. Select search from the help menu and click the find tab to search the documentation for help topics. This study examines how to best conduct a slug test using a physical slug. Spreadsheets for the analysis of aquifertest and slug. This method has been described by fetter 1988 and this involves determining the ratio hh0, where h0 or h. Instantaneously adding or removing a slug of water in a well and monitoring water level recovery head vs. Software by rockware aquiferwin32 is the most sophisticated and most windows compliant application for the analysis and presentation of aquifer tests including pump tests, slug tests, step tests and. The procedure involves either adding or removi ng a measured quantity of water from a well rapidly, followed by making a rapid series of waterlevel measurements to assess the rate of waterlevel. The basic procedure for analysis of slug test data includes the following steps.
Aquifertest is an easytouse software package for analyzing, interpreting and visualizing pumping and slug test data. Danishamerican geotechnical engineer mikael juul hvorslev 18951989 introduced an approximate mathematical model for the interpretation of overdamped slug tests in partially penetrating wells or piezometers. Slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells. The slug test acquisition software included with the gw1600 kit is loaded on a portable computer and used to observe and acquire slug test. The procedure involves either adding or removi ng a. The buttons on the bottom left and right corners of the screen exclude or include data from the analysis. Aquifer test analysis software products from starpoint software. Aquifertest for windows pumping test and slug test analysis. Methods of interpretation of borehole fallinghead tests performed in compacted clay liners. This method was developed for the analysis of slug test data from highly transmissive aquifers, as evidenced by oscillatory waterlevel response to a slug. Water groundwater data management and analysis tools. The rate of inflow or outflow, q, at the piezometer tip at any time t is. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slug test data.
Looking for an easytouse yet powerful pumping and slug test data analysis and reporting software. Estimation of hydraulic conductivity using the slug test. See how to set up a slug test in aqtesolv for manual and automated hvorslev type curve fitting. Aquifer slug test analysis using cooper, bredehoeft, papadopulos onscreen type curve matching, bouwer and rice graphical analysis and automatic parameter estimation with sensitivity analysis, hvorslev. Ansdimat advanced software system for aquifer test analytical and numerical analysis and estimation by direct and inverse methods. The parameter controls dialog is dynamic, changing to suit every test. Overdamped slug tests are the ones we commonly analyze with techniques like the straightline methods of hvorslev 1951 and bouwer and rice 1976 and the type curve methods of cooper, bredehoeft and papadopulos 1967 and hyder et al. This is made easy with pumping test and slug test data analysis software that offers a variety of methods to analyze and visualize your field data. My intution is that i take the complete filter length in this case as the saturated thickness in order to. Choose aqtesolv to get the most advanced software for slug test analysis including methods for single and multiwell tests, overdamped and underdamped conditions, wells screened across the water table, and more. Geological survey halford and kuniansky 2002 for the analysis of aquifer test and slug test data, a common. Slug test analysis tool is for estimating the hydraulic conductivity of saturated geologic materials.
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