Bouwer and rice method of slug test analysis software

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. This repository includes python scripts for the plotting and analysis of rising head slugtests. For the upper and lower sites, each 50 m long and 9 m wide and. Geological survey halford and kuniansky 2002 for the analysis of. The two primary references on slug testing are bouwer and rice 1976 and bouwer 1989. Astm d591296 2004 describes a widely used method of slug test analysis devised by bouwer and rice 1976. 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. An assessment of the nguyen and pinder method for slug test. Aquifer slug test analysis software for microsoft windows. Modern slug testing is considerably more rigorous than the typical onesizefitsall bouwer and rice slug tests of old. 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. This research presents a hydraulic conductivity k analysis of unconfined.

All wells included in this testing program are located around within and around the. Jun 20, 2009 astm d591296 2004 describes a widely used method of slug test analysis devised by bouwer and rice 1976. Super slug aquifer slug test analysis software for windows. The magnitude of lnapl transmissivity has been suggested as a.

Instream slug tests were conducted to determine k following the bouwer and rice method. The standard std version provides a set of pumping test and slug test solutions comparable to other commercially available software packages. 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. Request pdf a simple approach using bouwer and rices method for slug test data analysis slug test data obtained from tests performed. The method is based on the thiem 1906 analytical solution and was originally designed for the analysis of data from wells in unconfined aquifers.

Bouwerrice developed an equation for hydraulic conductivity as follows. The bouwerrice 1976 slug test is designed to estimate the hydraulic conductivity of an aquifer. Springer and gelhar 1991 extended the method to include inertial effects. Introduction lnapl transmissivity is a measure of lateral mobility of freeproduct hydrocarbon liquidwithin the groundwater environment. A slug test involves inducing a rapid change in water level in a test well see. Slug test data are affected by factors such as well skin and aquifer anisotropy chirlin, 1990. Slug test data obtained from tests performed in an unconfined aquifer are commonly analyzed by graphical or numerical approaches to determine the aquifer parameters. 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. Limited field research has raised questions about the reliability of the parameter estimates obtained with this method. Automated analysis of slug test data sciencedirect. With the slug test the hydraulic conductivity or transmissibility of an aquifer is determined from the rate of rise of the water level in a well after a certain volume or slug of water is suddenly removed from the well.

A modification to the bouwer and rice method of slug. In situ minitroll data loggers were used to collect the water level data during the slug tests. 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. A comparative analysis of two slug test methods in puget lowland.

Bouwerrice 1976 developed an equation for hydraulic conductivity as follows. Wiley online library paul marschall and baldur barczewski, the analysis of slug tests in the frequency domain, water resources research, 25, 11, 23882396, 2010. 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. Estimates aquifer hydraulic conductivity of near the well screen using the bouwer and rice 1976 method. 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. Slug, packer, and pressure transient testing springerlink. We usually use the method of bouwer and rice 1976 to obtain hydraulic conductivity from raw slug test data. 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 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. Based on steady state flow assumptions, this method is specifically intended to be applicable to unconfined aquifers. If data are not of sufficient quality to quickly identify a linear range for analysis. Bouwer rice slugtest calculator calculate hydraulic conductivity from slugtest data using bouwer and rice method step1 graph slugtest data log head vs. The straightline portion of the response is selected by the user on the basis of a graphic display of the test data. An evaluation of the bouwer and rice method of slug test analysis.

Slug tests in unconfined aquifers scholarworks at wmu. The slug test is simpler and quicker than the theis pumping test because observation wells and pumping the well are not. 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. 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. Super slug provides a draganddrop implementation of the cooper, bredehoeft, papadopulos type curve method.

The estimates of hydraulic conductivity k values from slug tests are overall smaller than the k values from the laboratory as shown in well mv904. 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. Geological survey halford and kuniansky 2002 for the analysis of aquifer test and slug test data, a common. Oscillatory slug test model differences hvorslev partial penetrating vs. Analysis of slug tests in formations of high hydraulic conductivity general overview. The estimates of hydraulic conductivity k values from slug tests are overall smaller than the. Slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells. A slug test for determining hydraulic conductivity of. Spreadsheets for the analysis of aquifertest and slugtest. Documentation of spreadsheets for the analysis of aquifertest and slugtest data. Environmental software 7 1992 8793 automated analysis of slug test data a. An assessment of the nguyen and pinder method for slug. Super slug slug test analysis software bouwer and rice automatic. A simple approach using bouwer and rices method for slug test.

Analysis of fallinghead slug test using bouwer and rice 1976 method and. Technical guidance manual for ground water investigations. Field investigation and estimates of hydraulic conductivity. Slug tests for determining hydraulic conductivity of natural. Bouwerrice slugtest calculator calculate hydraulic conductivity from slugtest data using bouwer and rice method step1 graph slugtest data log head vs. This method employs a quasisteadystate model that ignores elastic storage in the aquifer. The bouwerrice slug test is designed to estimate the hydraulic conductivity of an aquifer. Aqtesolv makes the application of straightline solutions e. 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.

In situ estimates of ground water contamination, author butler, j. 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. 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. Bouwer and rice 1976 solution for slug tests in unconfined.

Slug tests are used to determine in situ aquifer hydraulic. Aqtesolv is the most comprehensive slug test software for overdamped to. Complete the information for the analysis as follows. Designed by hydrogeologists for hydrogeologists, aquifertest delivers all the tools. Bouwer and rice slug test solution for unconfined aquifers. The method of bouwer and rice 1976 for analyzing slug test data is widely used to estimate hydraulic conductivity k.

The solution is appropriate for the conditions shown in the following figure. Two new approaches for the analysis of slug tests in formations of high. An evaluation of the bouwer and rice method of slug test. It is a method used by hydrogeologists and civil engineers to determine the transmissivityhydraulic conductivity and storativity of the material the well is. The standard contains an equation astm d591296 2004, p. Aquifertest pumping test and slug test analysis and.

Python scripts for the plotting and analysis of risinghead slugtests. 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 slug testing results. A mathematical solution by bouwer and rice 1976 is useful for determining hydraulic conductivity k of an unconfined aquifer from an overdamped slug test. Aquifertest is an easytouse software package for analyzing, interpreting and visualizing pumping and slug test data. Spreadsheets for the analysis of aquifertest and slug. Several spreadsheets have been developed for the analysis of aquifertest and slugtest data. Spreadsheets for the analysis of aquifertest and slugtest data. Slug tests for determining hydraulic conductivity of. To analyze partially penetrating wells, select the partially penetration option in the wells table. This is the only slug test analysis method that will provide an estimate of aquifer storativity.

Documentation of spreadsheets for the analysis of aquifer. Herman bouwer, the bouwer and rice slug test an update, groundwater, 27, 3, 304309, 2005. 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. For problems downloading these spreadsheets, or any part of this report, please email the nevada district public information assistant or call 775 8877649. 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. The professional pro version offers the most complete set of aquifer test solutions. Herman bouwer 192720 and bob rice used a resistancenetwork analog to develop an. Estimation of hydraulic conductivity using the slug test. A slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells, water resources research, 12. Results are generated simultaneously using the methods of bouwer and rice 1976. For sandy materials, tests were repeated on each well using several different slug sizes, ranging from 0. Slug tests are a method of determining the hydraulic conductivity or.