3 edition of **Tables and Type Curves For Analysis of Pump Tests in Leaky Parallel-Channel Aquifers.** found in the catalog.

Tables and Type Curves For Analysis of Pump Tests in Leaky Parallel-Channel Aquifers.

Canada. Environment Canada. Inland Waters Directorate.

- 142 Want to read
- 31 Currently reading

Published
**1976**
by s.n in S.l
.

Written in English

**Edition Notes**

1

Series | IWD technical bulletin -- 96 |

Contributions | Vandenberg, A. |

ID Numbers | |
---|---|

Open Library | OL21892077M |

is on this “paralleled pump curve”, Point “A” in Figure 4. Each pump operates on its curve at Point “B” System Curve Analysis – Parallel Pumping – Closed System The next step in the analysis is to plot a system curve using the design operating condition as a basis. The system curve represents the flow-head loss relationship for File Size: KB. New! A practical, easy-to-use reference for the design and analysis of groundwater pumping and slug tests Aquifer Testing: Design and Analysis of Pumping and Slug Tests is a complete design and analysis reference emphasizing practical solutions for engineers, scientists, consultants, and students knowledgeable in basic ground water theory.5/5(1).

Two families of type curves for nonsteady radial flow in an infinite leaky artesian aquifer. 4. Family of type curves for 1/u versus H(u, /3), for various values of j8. 5. Logarithmic plot of a versus G(a, rw/B). 6. Curves showing nondimensional response to pumping a fully penetrating well in an unconfined aquifer. 7. Curves showing nondimensional response to pumping a well penetrating the bottom three-tenths, Cited by: (Driscoll ). During these tests the well drawdown is measured over time while pump discharge is maintained constant. The resulting drawdown curve is evaluated using analytical solutions and their associated graphical depictions to estimate the aquifer parameters (Schwartz et al. ). These solutions assume an unconfined aquifer ofFile Size: 2MB.

Nonlinear analysis of slug tests in highly permeable aquifers using a Hvorslev-type approach, Kansas Geol. Survey Open-File Report McElwee, C.D. and M. Zenner, A nonlinear model for analysis of slug-test data, Water Resources Research, vol. 34, no. 1, pp. Page 36 - Shapes of porous samples porous-sample^ contact-line^ Preparation All porous samples were cleaned in a Soxhlet extractor with pure ethanol. They were dried in a vacuum oven. The degree of porosity, ie the ratio of the volume of pores to the total volume of the sample, was deduced from the comparison between the apparent density and the one of bulk material.

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Type curves for analysis of pump tests in leaky strip aquifers. Hydrol., The analysis of pump test data for strip aquifers, as for example, buried bedrock chan- nels, can be carried out by fitting the early part of the time--drawdown curve with the Theis non-equilibrium curve or with one of Hantush's curves for leaky by: Add tags for "Tables and type curves for analysis of pump tests in leaky parallel-channel aquifers".

Be the first. Graphical methods are outlined for determining the coefficients of transmissibility storage, and leakage of an effectively infinite leaky artesian aquifer. The procedure is based on the theory, developed by Hantush and Jacob, of the nonsteady flow toward a steadily discharging well from an infinite leaky by: Due to lack of a full‐range equation for the well function, an entire set of pump test data is rarely used in analysis.

In this paper, a high‐accuracy expression for the well function for a leaky artesian aquifer valid for entire range of arguments is developed. Analysis of pumping tests data from mutually leaky aquifers Citations The objective of this paper is to present procedures for pumping test analysis using some of these solutions.

Both type curve matching and straight‐line methods have been presented. Procedures described in this paper can be used to analyze early‐time drawdown data of Author: Shabbir A. Sayed, Alinawaz Shah Hussainy. in which x and y are horizontal Cartesian coordinates, t is time since pumping starts, δ(x − x 0, y − y 0) is the Dirac delta function, Q is the rate of pumping from a well located at (x 0, y 0) and S is storativity.

As spatial variations in S have lesser impact on flow than do spatial variations in T [e.g., Dagan, ; Oliver, ] we treat the former as a deterministic constant Cited by: Estimation of the hydraulic parameters of leaky aquifers based on pumping tests and coupled simulation/optimization: verification using a layered aquifer in Tianjin, China.

Trinchero et al. () have studied pumping tests in leaky confined aquifers where the solution reverts to a confined aquifer curve when leakance of a confining unit is very small. Van Camp and. Section through Nevius test site, near Lamar, Cola., showing radii to and depths of observation wells- 8.

Data from wells screened in middepth of aquifer at Revius test site, showing type-curve match _____ 9. Dimensionless drawdowns from Nevius test data at!Z’t/r’S = as a function ofFile Size: 2MB. In my opinion, the system curve is the single most important component of the pump selection process.

After all, the system curve determines the operating point on a pump’s performance curve. Other aspects, such as materials of construction and special features, can be reviewed after the hydraulic selection.

The system curve is even more important when an application requires multiple pumps. Typical well configuration for pumping test in nonleaky confined aquifer. The goal of a pumping test, as in any aquifer test, is to estimate hydraulic propertiesof an aquifer system.

For the pumped aquifer, one seeks to determine transmissivity, hydraulic conductivity(horizontal and vertical) and storativity(storage coefficient). 2 Pumping tests The principle It is beyond the scope of this book to discuss the many kinds of pumps that might be used, at a constant discharge for a period of at least a few days.

An even longer period may be required for unconfined or leaky aquifers, and especially for fractured aquifers. The sameFile Size: 1MB. CONCLUSION The series evaluation of the well function for leaky parallel-channel aquifers has been programmed as a subroutine for computer processing; the subroutine has been used successfully on a Control Data CYBER 74; as an estimate of processing time, the subroutine was executed 2, times over the ranges: ~ and ~ at an average processing time of by: 8.

The Analysis plots are the most important feature in AquiferTest. In the analysis graph, the data is fit to the type curve, and the corresponding aquifer parameters are determined. In the graph the data can be plotted linearly or logarithmically.

The program calculates the Type curve automatically, and plots it. Water Resources Research. Vol. 11, pp. Vandenberg, A. Tables and Types Curves for Analysis of Pumping Tests in Leaky ParallelChannel Aquifers.

Technical Bulletin No. Inland Waters Directorate, Water Resource Branch. Ottawa (Canada). Vandenberg, A. Type Curve Analysis of Pump Tests in Leaky Strip Aquifers. Journal of. SELECTED METHODS FOR PUMPING TEST ANALYSIS by JACK BRUIN and H. HUDSON, JR. URBANA First Printing, Second Printing, Third Printing, TABLE OF CONTENTS Page SUMMARY 5 INTRODUCTION 6 Scope of Report 6 Acknowledgments 6 GENERAL 6 Historical 6 System of Units 7 NON-EQUILIBRIUM METHOD 8 Analysis of Test Data 8 Type Curve.

ABSTRACT Pwrrping test data from eight locations including the islands of Oahu, Maui, and Molokai ~ere selected and analyzed. The test data ~ere selected on the basis of completeness, reliability, and aquifer type and boundary conditions Size: 5MB.

APPLICATION OF STEP DRAWDOWN PUMPING TESTS IN CONSOLIDATED ROCK AQUIFERS Vincent W. Uhl1 Abstract The concept of step-drawdown pumping tests was first introduced by Jacob (), and modifications in step-test analytical methods were subsequently developed by Rorabaugh () and others. The analysis of step-drawdown pumping test data enables.

Well Test hour constant-rate test (Q = gpm) Recovery monitored for 1 hour Aquifer–fractured bedrock (Triassic sandstone, siltstone, shale sequence) Upper boundary–water table Lower boundary–unknown (total depth of well is ft) Assume test well is fully penetrating but most of water may be coming from lower ft.

A novel methodology for the interpretation of pumping tests in leaky aquifer systems, referred to as the double inflection point (DIP) method, is presented. The method is based on the analysis of the first and second derivatives of the drawdown with respect to log time for the estimation of the flow by:.

The distance of the observation wells used for analysis was between 19 and 73 m away from the pumping wells for different aquifer tests. Information on six aquifer pump test setups is provided in Table 1. For the completed aquifer pump tests, manual measurements were taken using water level meters.The following image displays the Boulton () type curves for a constant s.

The following image displays a diagnostic plot of Boulton () type curve. An example of a Boulton analysis is shown below: An example of a Boulton analysis is available in the project: C:\Users\Public\Documents\AquiferTest Pro\Examples\ Dimensionless.Used by major universities as a textbook and reference book.

Title: Aquifer Test Data: Analysis and Evaluation plus CD-ROM with Easy to Use Tables of Specific Capacity and Easy to Use Theisian Tables in pdf format - NOW Includes Addendum: Slug Test, Permeameters, and Grain Size Analysis Author: Michael Kasenow, PHD Specifications: Softbound, pp.