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. Spreadsheets for the analysis of aquifertest and slug. 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 reportquality graphical output capabilities. 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 professional pro version offers the most complete set of aquifer test. 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. Oct 09, 2017 graphical determination of hydraulic conductivity. The hvorslev slug test is designed to estimate the hydraulic conductivity of an aquifer. The method uses the analytical solution of ramey et al. Analysis of slug tests in formations of high hydraulic conductivity general overview.
From the help menu or click on the toolbar to obtain. The slug test analysis software is a graphical interface used to model the data collected from a slug test. Designed by hydrogeologists for hydrogeologists, aquifertest delivers all the tools. 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. The analysis portion of the test should form a straight line portion of the response curve. The procedure involves either adding or removi ng a. Aquifertest for windows pumping test and slug test. Slug tests for determination of hydraulic conductivity of.
Estimation of hydraulic conductivity using the slug test method in a shallow aquifer in the venetian plain ne, italy. Danishamerican geotechnical engineer mikael juul hvorslev 18951989 introduced an approximate. Estimation of hydraulic conductivity using the slug test. Spreadsheets for the analysis of aquifer test and slugtest data, version 1. 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. Super slug slug test analysis software bouwer and rice automatic. I lots of complicated math and analysis, the bottom line is that ow tofrom a well in an extensive aquifer is radial, and can. Aqtesolv is the most advanced software for slug test analysis and features the most comprehensive set. The standard std version provides a set of pumping test and slug test solutions comparable to other commercially available software packages. Super slug provides extensive flexibility for fitting the line to data.
Slug test analysis tool is for estimating the hydraulic conductivity of saturated geologic materials. 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. May 10, 2016 see how to set up a slug test in aqtesolv for manual and automated hvorslev type curve fitting. Time lag and soil permeability in groundwater observations. Select search from the help menu and click the find tab to search the documentation for help topics. The spreadsheets are written in microsoft excel version 9. Aquifertest is an easytouse software package for analyzing, interpreting and visualizing pumping and slug test data. Post test procedure make a preliminary analysis of the data before leaving the test area. Slug test and pump test analysis software for windows. An assessment of the nguyen and pinder method for slug test. A slug test involves the instantaneous injection or withdrawal of a volume or slug of water or solid cylinder of known volume. Slug test responses can run the gamut from overdamped to underdamped.
The rate of inflow or outflow, q, at the piezometer tip at any time t is. Computer programs for aquifer evaluation by slug test and other methods are most commonly used to interpret the raw slug test. See how to set up a slug test in aqtesolv for manual and automated hvorslev type curve fitting. 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.
Methods of interpretation of borehole fallinghead tests performed in compacted clay liners. One well field test for determining hydraulic conductivity k entails. Slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells. For example, the effects of resource development or of contaminant remediation depend critically upon the insitu hydraulic conductivity. The slug test acquisition software included with the gw1600 kit is loaded on a portable computer and used to observe and acquire slug test. This method was developed for the analysis of slug test data from highly transmissive aquifers, as evidenced by oscillatory waterlevel response to a slug.
My intution is that i take the complete filter length in this case as the saturated thickness in order to. It is also one of the most challenging as a result of the variability in field conditions and solution methods. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slugtest. Water groundwater data management and analysis tools. This tool is based on the hvorslev 1951 slug recovery test see freeze and cherry 1979, p340. The basic procedure for analysis of slug test data includes the following steps. Aquifertest for windows pumping test and slug test analysis. 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.
The parameter controls dialog is dynamic, changing to suit every test. In the theis analysis, the transmissivity t and storativity s were calculated. The professional pro version offers the most complete set of aquifer test solutions. 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. 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. Slug test for determining hydraulic conductivity of unconfined aquifers with. Instantaneously adding or removing a slug of water in a well and monitoring water level recovery head vs. Software for slug test analysis by hydrosolve, inc. In situ estimates of ground water contamination, author butler, j.
Aquifertest is now a 64bit application with improved performance. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slugtest data. Automated analysis of slug test data sciencedirect. The test is intended for use in confined aquifers although may be extended to unconfined aquifers in many cases. For problems downloading these spreadsheets, or any part of this report, please email the nevada district public information assistant or call 775 8877649. 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. Aquifer test analysis software products from starpoint software. 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 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. 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 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. Different common slug test analysis methods are compared, including bouwer and rice 1976, hvorslev. 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. Similar to the pumping test analysis, you can use the parameter controls to adjust parameters in the slug test analyses. Looking for an easytouse yet powerful pumping and slug test data analysis and reporting software. Hvorslevs transient solution omits storativity of the formation and assumes quasisteadystate flow between the control well and the tested formation. Choose aqtesolv to get the most advanced software for slug test analysis including methods for single and multiwell tests, overdamped and underdamped. Contribute to vubhydrslugtest development by creating an account on github.
Spreadsheets for the analysis of aquifer test and slug test data. Spreadsheets for the analysis of aquifer test and slug test data article in ground water 411. Slug tests have been used extensively to measure hydraulic conductivity in the last fifty years since hvorslev s work. Analysis involves matching a straight line to waterlevel displacement data collected during an overdamped slug test. 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. Super slugs hvorslev method also supports partial penetration.
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. This repository includes python scripts for the plotting and analysis of rising head slugtests. Slug test analysis when initial groundwater table is below. Pdf methods of interpretation of borehole fallinghead. Compare slug test solutions in the pro and standard versions overdamped slug tests. Spreadsheets for the analysis of aquifertest and slugtest. Geological survey halford and kuniansky 2002 for the analysis of aquifer test and slug test data, a common.
This is accomplished by displacing a known volume of water from a well and measuring the artificial fluctuation of the groundwater level. 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 pumping test and slug test analysis and. The primary advantages of using slug tests to estimate hydraulic conductivities. This report documents several spreadsheets that have been developed for the analysis of aquiferpumping test and slug test data. Slug tests are used to determine in situ aquifer hydraulic conductivity more quickly and economically than by a pump test. The natural logarithm of drawdown is plotted against the time since the start of the test. 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. A mathematical solution by hvorslev 1951 is useful for determining the hydraulic conductivity k of nonleaky confined aquifers. Slug tests in unconfined aquifers scholarworks at wmu. Ansdimat advanced software system for aquifer test analytical and numerical analysis and estimation by direct and inverse methods.
This method has been described by fetter 1988 and this involves determining the ratio hh0, where h0 or h. This is the only slug test analysis method that will provide an estimate of aquifer storativity. This study examines how to best conduct a slug test using a physical slug. Spreadsheets for the analysis of aquifer test and slug test data, version 1.
Python scripts for the plotting and analysis of risinghead slugtests. 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. Kgsofr 200026analyzing slug tests for maximum accuracy. Aquifertest is an easytouse software package for analyzing, interpreting and visualizing pumping and slug test. Different common slug test analysis methods are compared, including bouwer and rice 1976, hvorslev 1951, dagan.
289 113 82 1493 40 769 151 530 90 985 1284 708 37 405 903 881 572 336 39 80 751 298 860 1257 1 667 1370 218 1167 200 642 605 374 31 821 1597 1420 920 1030 1308 39 778 1317 630 889 491