The LEADING Aquifer Test Software for Pumping Tests, Step Tests and Slug Tests!
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AQTESOLV Home > Features > Solutions

Aquifer Test Solutions

AQTESOLV features a comprehensive suite of analytical solutions for evaluating pumping test, slug test and constant-head test data in confined, unconfined, leaky and fractured aquifers.

 Key Solution Features
bullet8.gif (204 bytes) Unconfined Pumping Tests with Unsaturated Flownew2.gif (111 bytes)
bullet8.gif (204 bytes) Constant-Head Testsnew2.gif (111 bytes)
bullet8.gif (204 bytes) Confined/Unconfined Conversionnew2.gif (111 bytes)
bullet8.gif (204 bytes) Automatic Image Well Generationnew2.gif (111 bytes)
bullet8.gif (204 bytes) Nonuniform Aquifersnew2.gif (111 bytes)
bullet8.gif (204 bytes) Horizontal Wellsnew2.gif (111 bytes)
bullet8.gif (204 bytes) Generalized Radial Flow Modelnew2.gif (111 bytes)
bullet8.gif (204 bytes) Water-Table Aquitardnew2.gif (111 bytes)
bullet8.gif (204 bytes) Delayed Observation Well Responsenew2.gif (111 bytes)
bullet8.gif (204 bytes) Single-Well Tests
bullet8.gif (204 bytes) Slug Tests
bullet8.gif (204 bytes) Step-Drawdown Tests (Confined and Leaky Aquifers)new2.gif (111 bytes)
bullet8.gif (204 bytes) Variable-Rate Tests
bullet8.gif (204 bytes) Recovery Tests
bullet8.gif (204 bytes) Aquifer Test Design
bullet8.gif (204 bytes) Two-Aquifer Systems
bullet8.gif (204 bytes) Single Fractures (Uniform-Flux and Infinite-Conductivity)new2.gif (111 bytes)
bullet8.gif (204 bytes) Partial Penetration Analysis
bullet8.gif (204 bytes) Large-Diameter Well Solutions
bullet8.gif (204 bytes) Interceptor Trench
bullet8.gif (204 bytes) Oscillatory Slug Tests for Single and Multiple Wellsnew2.gif (111 bytes)

Select either the Professional or Standard version of AQTESOLV to meet the requirements of your aquifer test analyses.

bulletThe Standard (STD) version provides a basic set of pumping test, constant-head test and slug test solutions.
bulletThe Professional (PRO) version offers the most complete set of aquifer test solutions. Choose the Professional version for access to sophisticated solutions and features not found in other commercially available software packages. The Modeling Pro version provides the same solutions as the Professional version.

Pumping Test Solutions

Summary of Pumping Test Solutions
Solution Category Methods Available
Constant-Rate Tests 35
Variable-Rate Tests 34
Recovery Tests 33
Step-Drawdown Tests 3
Partial Penetration 16
Wellbore Storage 12
Wellbore Skin 13
Bounded Aquifersnew2.gif (111 bytes) 23
Delayed Obs. Well Responsenew2.gif (111 bytes) 5
Horizontal Wellnew2.gif (111 bytes) 2
Confined Aquifers 14
Leaky Aquifers 9
Unconfined Aquifers 5
Fractured Aquifers 7

Pumping Test Solutions for Confined Aquifers
Solution Method STD PRO
Theis (1935) x x
Theis (1935) residual drawdown x x
Theis (1935) step test x x
Cooper-Jacob (1946); Birsoy-Summers (1980) x x
Moench-Prickett (1972) w/unconfined conversionnew2.gif (111 bytes)   x
Butler (1988) nonuniform aquifernew2.gif (111 bytes)   x
Papadopulos-Cooper (1967) x x
Dougherty-Babu (1984)new2.gif (111 bytes)   x
Dougherty-Babu (1984) step testnew2.gif (111 bytes)   x
Hantush (1962) wedge-shaped aquifer x
Murdoch (1994) interceptor trench x
Daviau et al. (1985) uniform flux and infinite conductivity horizontal wellnew2.gif (111 bytes)   x
Barker (1988) generalized radial flow modelnew2.gif (111 bytes)   x
Pumping Test Solutions for Leaky Aquifers
Solution Method STD PRO
Hantush-Jacob (1955) x x
Hantush-Jacob (1955) step testnew2.gif (111 bytes)   x
Hantush (1960) early-time solution x x
Hantush (1960) complete solutionnew2.gif (111 bytes)   x
Cooley-Case (1973) water-table aquitardnew2.gif (111 bytes)   x
Neuman-Witherspoon (1969) x
Moench (1985) Cases 1, 2 and 3new2.gif (111 bytes) x
Pumping Test Solutions for Unconfined Aquifers
Solution Method STD PRO
Theis (1935) x x
Cooper-Jacob (1946) x x
Neuman (1974); Moench (1993, 1996) x x
Moench (1997) x
Tartakovsky-Neuman (2007)new2.gif (111 bytes)   x
Pumping Test Solutions for Fractured Aquifers
Solution Method STD PRO
Moench (1984) double porosity, slab and spherical blocks x x
Barker (1988) generalized radial flow model, slab and spherical blocksnew2.gif (111 bytes)   x
Gringarten-Witherspoon (1972) uniform-flux and infinite-conductivity vertical fracturenew2.gif (111 bytes) x
Gringarten-Ramey (1974) uniform-flux horizontal fracture x

Constant-Head Test Solutions

Summary of Constant-Head Test Solutionsnew2.gif (111 bytes)

Solution Category

Methods Available

Constant-Head Testsnew2.gif (111 bytes) 11
Recovery Testsnew2.gif (111 bytes) 10
Wellbore Skinnew2.gif (111 bytes) 6
Confined Aquifersnew2.gif (111 bytes) 5
Leaky Aquifersnew2.gif (111 bytes) 2
Fractured Aquifersnew2.gif (111 bytes) 4

Constant-Head Test Solutions for Confined Aquifers
Solution Method STD PRO
Jacob-Lohman (1952) type-curve and straight-line methodsnew2.gif (111 bytes) x x
Hurst-Clark-Brauer (1968)new2.gif (111 bytes)   x
Dougherty-Babu (1984)new2.gif (111 bytes)   x
Barker (1988) single-porosity generalized radial flow modelnew2.gif (111 bytes)   x
Constant-Head Test Solutions for Leaky Aquifers
Solution Method STD PRO
Hantush (1959)new2.gif (111 bytes)   x
Moench (1985) Case 1new2.gif (111 bytes)   x
Constant-Head Test Solutions for Fractured Aquifers
Solution Method STD PRO
Barker (1988) double-porosity generalized radial flow model, slab and spherical blocksnew2.gif (111 bytes)   x
Ozkan-Raghavan (1991) uniform flux and infinite-conductivity vertical fracturenew2.gif (111 bytes)   x

Slug Test Solutions

Summary of Slug Test Solutions

Solution Category Methods Available
Slug Tests 18
Partial Penetration 15
Underdamped 5
Confined Aquifers 11
Unconfined Aquifers 6
Fractured Aquifersnew2.gif (111 bytes) 1

Slug Test Solutions for Confined Aquifers
Solution Method STD PRO
Bouwer-Rice (1976) x x
Cooper-Bredehoeft-Papadopulos (1967) x x
Dougherty-Babu (1984)new2.gif (111 bytes)   x
Hvorslev (1951) x x
Hyder et al. (1994)/KGS Model x
Butler (1998) x
Butler-Zhan (2004)new2.gif (111 bytes)   x
Peres et al. (1989) deconvolutionnew2.gif (111 bytes)   x
McElwee-Zenner (1998) nonlinear slug testnew2.gif (111 bytes)   x
Slug Solutions for Unconfined Aquifers
Solution Method STD PRO
Bouwer-Rice (1976) x x
Hvorslev (1951) x x
Dagan (1978)new2.gif (111 bytes)   x
Hyder et al. (1994)/KGS Model x
Springer-Gelhar (1991) x
Slug Test Solutions for Fractured Aquifers
Solution Method STD PRO
Barker-Black (1983) double-porosity slug testnew2.gif (111 bytes)   x

bulletSingle-Well Solutions
bulletSlug Test Analysis
bulletStep Test Analysis
bulletVariable-Rate Analysis
bulletRecovery Test Analysis
bulletConstant-Head Testsnew2.gif (111 bytes)
bulletDelayed Responsenew2.gif (111 bytes)
bulletAquifer Test Design
bulletTwo-Aquifer Systems
bullet Single Fractures
bulletPartial Penetration Analysis
bulletLarge-Diameter Well Solutions
bulletInterceptor Trench
bulletHorizontal Wellnew2.gif (111 bytes)
bullet Oscillatory Slug Testsnew2.gif (111 bytes)
bulletMultiwell Slug Tests

Unconfined Pumping Tests with Unsaturated Flownew2.gif (111 bytes)

AQTESOLV includes the new Tartakovsky-Neuman (2007) solution for flow to a well in an unconfined aquifer with 3-D saturated/unsaturated flow.

Constant-Head Testsnew2.gif (111 bytes)

AQTESOLV provides a suite of solutions for analyzing data from constant-head tests in confined, leaky and fractured aquifers.

Horizontal Wellsnew2.gif (111 bytes)

AQTESOLV includes a solution by Daviau et al. (1985) for a horizontal well in a confined aquifer. Simulate flow to the well with uniform-flux and infinite-conductivity models.

Water-Table Aquitardnew2.gif (111 bytes)

AQTESOLV now includes a solution by Cooley and Case (1973) for a leaky confined aquifer overlain by a water-table aquitard.

Confined/Unconfined Conversionnew2.gif (111 bytes)

AQTESOLV includes a solution by Moench and Prickett (1972) for a confined aquifer undergoing conversion to unconfined conditions.

Nonuniform Aquifersnew2.gif (111 bytes)

AQTESOLV includes a solution by Butler (1988) for nonuniform aquifers.

Generalized Radial Flow Modelnew2.gif (111 bytes)

AQTESOLV includes a solution by Barker (1988) for a generalized radial flow model for unsteady, n-dimensional flow to a fully penetrating source in an isotropic, single- or double-porosity fractured aquifer. For the double-porosity case, AQTESOLV includes options for slab and spherical matrix blocks.

Delayed Observation Well Responsenew2.gif (111 bytes)

AQTESOLV now includes a technique for delayed observation well response (Kipp and Black 1977; Moench 1997) for pumping tests in confined, unconfined and fractured aquifers and slug tests in confined aquifers.

Single-Well Solutions

AQTESOLV includes many solutions for use in the analysis of single-well aquifer tests.

bulletThe Theis (1935) and Hantush-Jacob (1955)new2.gif (111 bytes) step-drawdown test solutions include linear and nonlinear well losses and allows you to compute well efficiency.
bulletThe Papadopulos-Cooper (1967), Dougherty-Babu (1984)new2.gif (111 bytes), Moench (1997), Moench (1985), Moench (1984) and Barker (1988)new2.gif (111 bytes) solutions include wellbore storage effects for pumping tests performed in confined, unconfined, leaky and fractured aquifers.
bulletThe solutions for slug tests apply to the analysis of single-well underdamped and overdamped slug tests in unconfined and confined aquifers.
bulletThe solutions for constant-head tests apply to single-well configurations. Choose from solutions for confined, leaky and fractured aquifers.

More info on single-well tests...Click for more info!

Slug Tests with Inertial Effects (Oscillatory Response)

AQTESOLV includes solutions by Butler (1998), Springer-Gelhar (1991) and Butler-Zhan (2004)new2.gif (111 bytes) for the analysis of slug tests with oscillatory response due to inertial effects. These solutions allow you to analyze data with underdamped and overdamped response and include a correction for frictional well loss in small-diameter wells.

Multiwell Slug Tests

AQTESOLV includes solutions by Dougherty-Babu (1984), Hyder et al. (1994), Butler-Zhan (2004) w/inertial effectsnew2.gif (111 bytes) and Barker-Black (1983)new2.gif (111 bytes) for the analysis of slug tests with observation wells. These solutions allow you to analyze data at both the test well and one or more observation wells.

Confined Two-Aquifer Systems

AQTESOLV includes a sophisticated solution by Neuman and Witherspoon (1969) for the analysis of a confined two-aquifer system with leakage. Unlike the Hantush-Jacob (1955) and Hantush (1960) solutions for leaky aquifers, the Neuman-Witherspoon (1969) solution accounts for drawdown in the unpumped aquifer.

Single Fracture Solutions

AQTESOLV provides three methods for analyzing fractured aquifers with single fractures. For pumping tests, the Gringarten-Witherspoon (1972) solution accounts for a single vertical plane fracture in an anisotropic fractured medium (uniform flux and infinite conductivitynew2.gif (111 bytes)); the Gringarten-Ramey (1974) solution predicts drawdown in an anisotropic fractured aquifer with a single horizontal plane fracture. For constant-head tests, the Ozkan-Raghavan (1991)new2.gif (111 bytes) method simulates a single vertical plane fracture.

Flow to an Interceptor Trench

AQTESOLV includes the Murdoch (1994) solution for the analysis of flow to an interceptor trench. Perform aquifer tests with remedial trenches!

Large-Diameter Well Solutions

Click to enlarge image!The Papadopulos-Cooper (1967), Dougherty-Babu (1984)new2.gif (111 bytes), Moench (1997), Moench (1985), Moench (1984) and Barker (1988)new2.gif (111 bytes) solutions include wellbore storage effects for pumping tests performed in confined, unconfined, leaky and fractured aquifers. Wellbore storage is an important, often overlooked, factor in single-well tests.

More info on single-well tests...Click for more info!

Step Test Analysis

Click to enlarge image!The Theis (1935), Dougherty-Babu (1984)new2.gif (111 bytes) and Hantush-Jacob (1955)new2.gif (111 bytes) step-drawdown test solutions include linear and nonlinear well losses and allows you to compute well efficiency.

All of the pumping tests solutions in AQTESOLV include variable-rate analysis. With this feature, you can use any of the pumping test solutions in the program to simulate stepped variations in pumping (including recovery).

More info on step tests...Click for more info!

Variable-Rate and Recovery Test Analysis

Click to enlarge image!All of the pumping tests solutions in AQTESOLV include variable-rate analysis. With this feature, you can use any of the type curve solutions in the program to simulate recovery as well as drawdown during a pumping test.

AQTESOLV now includes the Agarwal method for analyzing data from a recovery test!new2.gif (111 bytes)

More info on variable-rate tests...Click for more info!

More info on recovery tests...Click for more info!

Multiple Observation Wells

Click to enlarge image!Enter multiple observations from an aquifer test into a single data set. Analyze all of the observation wells simultaneously using distance-drawdown and composite plots and determine a single set of aquifer properties that unifies all of the observation data.

Distance-Drawdown and Composite Plot Analysis

Perform distance-drawdown and composite plot analyses for multiple observation wells.

Multiple Pumping Wells and Image Wells

Enter multiple pumping wells into a data set to include the effects of other pumping wells (extraction or injection) on your test.

Automatically generate image wells for single and multiple boundary configurations including strip aquifers.new2.gif (111 bytes)

Partial Penetration Analysis

AQTESOLV includes solutions for partially penetrating wells in confined, unconfined, leaky and fractured aquifers.

Aquifer Test Design (Prediction)

To design an aquifer test using AQTESOLV, use the convenient Forward Solution Wizard to enter data for the pumping and observation wells, choose any solution method, enter estimates of aquifer properties, and plot a type curve to predict drawdown. Example.

More info on prediction...Click for more info!


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Last Modified: 05 July 2008