The straightline portion of the response is selected by the user on the basis of a graphic display of the test data. Aquifertest is an easytouse software package for analyzing, interpreting and visualizing pumping and slug test data. For sandy materials, tests were repeated on each well using several different slug sizes, ranging from 0. The magnitude of lnapl transmissivity has been suggested as a. Complete the information for the analysis as follows. Analysis involves matching a straight line to waterlevel displacement data collected over time. Field investigation and estimates of hydraulic conductivity. A slug test is a particular type of aquifer test where water is quickly added or removed from a groundwater well, and the change in hydraulic head is monitored through time, to determine the nearwell aquifer characteristics. This repository includes python scripts for the plotting and analysis of rising head slugtests.
A slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells, water resources research, 12. An assessment of the nguyen and pinder method for slug. Estimation of hydraulic conductivity using the slug test. Introduction lnapl transmissivity is a measure of lateral mobility of freeproduct hydrocarbon liquidwithin the groundwater environment.
Design and performance of slug test design of well well depth, length of screen, screen slot size and length, and distribution of the filter pack should be known and based on sitespecific boring information for a well to be used as a valid observation point. Bouwer rice slugtest calculator calculate hydraulic conductivity from slugtest data using bouwer and rice method step1 graph slugtest data log head vs. Bouwer and rice fully penetrating confined or unconfined apply to all responses or just oscillatory low values of c d corrects for pipe friction or not added term within c d corrects for depth of pressure transducer corrects for well skins. Geological survey halford and kuniansky 2002 for the analysis of. An evaluation of the bouwer and rice method of slug test.
Bouwerrice developed an equation for hydraulic conductivity as follows. For problems downloading these spreadsheets, or any part of this report, please email the nevada district public information assistant or call 775 8877649. This is the only slug test analysis method that will provide an estimate of aquifer storativity. Bouwer and rice 1976 method for analyzing overdamped slug tests in unconfined and confined aquifers.
A numerical approach using the nonlinear least squares and newtons method is used to determine hydraulic conductivity from the best fit of the slug test data. Analysis of fallinghead slug test using bouwer and rice 1976 method and recommended normalized head range. Spreadsheets for the analysis of aquifertest and slugtest. Slug tests for determining hydraulic conductivity of natural. This paper derives three fourthdegree polynomials to represent the relationship between bouwer and rice s coefficients and the ratio of the screen length to the radius of the. This paper derives three fourthdegree polynomials to represent the relationship between bouwer and rices coefficients and the ratio of the screen length to the radius of the. Analysis involves matching a straight line to waterlevel displacement data collected over time herman bouwer 192720 and bob rice used a resistancenetwork analog to develop an empirical model for. To analyze partially penetrating wells, select the partially penetration option in the wells table. The bouwerrice 1976 slug test is designed to estimate the hydraulic conductivity of an aquifer. The estimates of hydraulic conductivity k values from slug tests are overall smaller than the. The bouwer and rice 1976 method is most popular than other methods because it was designed specifically for tests of unconfined aquifers, the most common kind of slug test performed. All wells included in this testing program are located around within and around the. Limited field research has raised questions about the reliability of the parameter estimates obtained with this method. Wiley online library paul marschall and baldur barczewski, the analysis of slug tests in the frequency domain, water resources research, 25, 11, 23882396, 2010.
Spreadsheets for the analysis of aquifertest and slug. It is a method used by hydrogeologists and civil engineers to determine the transmissivityhydraulic conductivity and storativity of the material the well is. Documentation of spreadsheets for the analysis of aquifertest and slugtest data. The professional pro version offers the most complete set of aquifer test solutions.
Instream slug tests were conducted to determine k following the bouwer and rice method. Slug tests are a method of determining the hydraulic conductivity or. Slug tests for determining hydraulic conductivity of. Request pdf a simple approach using bouwer and rices method for slug test data analysis slug test data obtained from tests performed. Geological survey halford and kuniansky 2002 for the analysis of aquifer test and slug test data, a common. Documentation of spreadsheets for the analysis of aquifer. Analysis of a slug test to estimate hydraulic conductivity of a vertical cutoff wall is complicated by the high compressibility of the backfill materials and by the proximity of the well intake section to the edge of the cutoff wall. A slug test involves inducing a rapid change in water level in a test well see. The standard std version provides a set of pumping test and slug test solutions comparable to other commercially available software packages. Slug, packer, and pressure transient testing springerlink. A simple approach using bouwer and rices method for slug test. Bouwerrice 1976 developed an equation for hydraulic conductivity as follows. Based on steady state flow assumptions, this method is specifically intended to be applicable to unconfined aquifers.
Bouwer and rice slug test solution for unconfined aquifers. Designed by hydrogeologists for hydrogeologists, aquifertest delivers all the tools. Automated analysis of slug test data sciencedirect. Several spreadsheets have been developed for the analysis of aquifertest and slugtest data. A mathematical solution by bouwer and rice 1976 is useful for determining hydraulic conductivity k of an unconfined aquifer from an overdamped slug test. A simple approach using bouwer and rices method for slug.
The standard contains an equation astm d591296 2004, p. This research presents a hydraulic conductivity k analysis of unconfined. Modern slug testing is considerably more rigorous than the typical onesizefitsall bouwer and rice slug tests of old. Aquifertest pumping test and slug test analysis and. 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. The solution is appropriate for the conditions shown in the following figure. Bouwer and rice parameters a, b, and c are automatically estimated for each test, based on a fifthorder polynomial regression to the curves presented in the original paper. Environmental software 7 1992 8793 automated analysis of slug test data a. Technical guidance manual for ground water investigations. Slug test data are affected by factors such as well skin and aquifer anisotropy chirlin, 1990. 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. A modification to the bouwer and rice method of slug. Results are generated simultaneously using the methods of bouwer and rice 1976.
Bouwerrice slugtest calculator calculate hydraulic conductivity from slugtest data using bouwer and rice method step1 graph slugtest data log head vs. Bouwer and rice 1976 solution for slug tests in unconfined. Kgsofr 200040simple procedures for analysis of slug tests. This method employs a quasisteadystate model that ignores elastic storage in the aquifer. An evaluation of the bouwer and rice method of slug test analysis. Slug tests are used to determine in situ aquifer hydraulic. Springer and gelhar 1991 extended the method to include inertial effects.
Analysis of slug tests in formations of high hydraulic conductivity general overview. Oscillatory slug test model differences hvorslev partial penetrating vs. For an unconfined aquifer, bouwer and rice 1976 elaborated a semianalytical method for the analysis of an overdamped slug test in a fully or partially penetrating well. The method of bouwer and rice 1976 for analyzing slug test data is widely used to estimate hydraulic conductivity k. Herman bouwer 192720 and bob rice used a resistancenetwork analog to develop an. In situ estimates of ground water contamination, author butler, j. Analysis results from the alluvial aquifer shortterm aquifer test and slug tests aquifer test analysis slug test analysis test number theis recovery bouwer and rice hvorslev black, t ft day k fday k ftday k ftday k ftday 0191laq test 1 86. If data are not of sufficient quality to quickly identify a linear range for analysis. Aqtesolv is the most comprehensive slug test software for overdamped to. This paper derives three fourthdegree polynomials to represent the relationship between bouwer and rices coefficients and the ratio of the screen length to the radius of the gravel envelope. We usually use the method of bouwer and rice 1976 to obtain hydraulic conductivity from raw slug test data. Super slug slug test analysis software bouwer and rice automatic. Aquifer slug test analysis software for microsoft windows. Two new approaches for the analysis of slug tests in formations of high.
Super slug provides a draganddrop implementation of the cooper, bredehoeft, papadopulos type curve method. 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. 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 conditions. Astm d591296 2004 describes a widely used method of slug test analysis devised by bouwer and rice 1976.
Slug tests in unconfined aquifers scholarworks at wmu. Spreadsheets for the analysis of aquifertest and slugtest data. An assessment of the nguyen and pinder method for slug test. Estimates aquifer hydraulic conductivity of near the well screen using the bouwer and rice 1976 method. Super slug aquifer slug test analysis software for windows. Analysis of fallinghead slug test using bouwer and rice 1976 method and. The bouwerrice slug test is designed to estimate the hydraulic conductivity of an aquifer. 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. Herman bouwer, the bouwer and rice slug test an update, groundwater, 27, 3, 304309, 2005. The slug test is simpler and quicker than the theis pumping test because observation wells and pumping the well are not.
The method is based on the thiem 1906 analytical solution and was originally designed for the analysis of data from wells in unconfined aquifers. Slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells. For the upper and lower sites, each 50 m long and 9 m wide and roughly 20 m apart, a sampling grid of 5 m. The field guide for slug testing and data analysis by the midwest geosciences group is concise yet technically thorough with just the right amount of detail necessary to guide a user through the critical factors such as well development that affect.
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