Confined Aquifer Parameters from Temporal Derivative of Drawdowns
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Hydraulic Engineering
Volume 127, Issue 6
Abstract
A simple method that uses the time derivative of drawdowns is proposed for the evaluation of confined aquifer parameters. Explicit expressions are proposed for evaluation of the aquifer parameters as well as a graphical procedure. A reliable and accurate scheme to calculate the numerical derivative of drawdowns is developed based upon an analytical approach. The method requires early drawdown data (u > 0.01, where u is the argument of well function), and is shown to converge to the Cooper-Jacob method for late drawdowns (u ≤ 0.01). It does not require curve matching or an initial guess for the parameters. Calculations for the method can be performed on a hand-held calculator. The method has been applied to published data sets and the results have been compared with those obtained using traditional methods. The method accurately estimates the aquifer parameters using only early drawdown data, thereby indicating savings in time and money.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Central Ground Water Board (CGWB). ( 1982). Manual on evaluation of aquifer parameters, Government of India.
2.
Cooper, H. H., and Jacob, C. E. ( 1946). “A generalized graphical method for evaluating function constants and summarizing well field history.” Am. Geophys. Union, 27, 526–534.
3.
Kashef, A.-A. I. ( 1986). Ground-water engineering, McGraw-Hill, New York, 319–322.
4.
Khan, I. A. ( 1982). “Determination of aquifer parameters using regression analysis.” Water Resour. Bull., 18(2), 325–330.
5.
El-Khatib, N. A. F. ( 1987). “A new approach to the interference test analysis.” SPE Formation Evaluation, 2, 609–610.
6.
Lohman, L. W. ( 1972). “Ground-water hydraulics.” Profl. Paper No. 708, USGS.
7.
Rai, S. P. (1985). “Numerical determination of aquifer constants.”J. Hydr. Engrg., ASCE, 111(7), 1110–1114.
8.
Singh, S. K. ( 1995). “Identification of aquifer parameters in Narmada Basin.” Tech. Rep. No. TR(BR-130), National Institute of Hydrology, Roorkee, (U.P.), India.
9.
Singh, S. K. ( 1996). “Explicit expressions for aquifer parameter determination.” Proc., Nat. Conf. HYDRO-96, Indian Society for Hydraulics (ISH), Kanpur, India, 75–80.
10.
Singh, S. K. (2000). “Simple method for confined-aquifer parameter estimation.”J. Irrig. and Drain. Engrg., ASCE, 126(6), 404–407.
11.
Singh, S. K., and Ram, S. ( 1996). “A new graphical method for identification of aquifer parameters.” Proc., All India Seminar on “Hydraulic Engineering,” Indian Society for Hydraulics (ISH), Nagpur, India, 103–106.
12.
Spane, F. A., and Wurstner, S. K. ( 1993). “DERIV: A computer program for calculating pressure derivatives for use in hydraulic test analysis.” Ground Water, 31(5), 814–822.
13.
Srivastava, R., and Guzman-Guzman, A. ( 1994). “Analysis of slope matching methods for aquifer parameter determination.” Ground Water, 32(4), 470–475.
14.
Theis, C. V. ( 1935). “The relation between lowering of the piezometric surface and the rate and the duration of discharge of a well using ground-water storage.” Am. Geophys. Union, 16, 519–524.
15.
Todd, D. K. ( 1980). Groundwater hydrology, Wiley, New York, 130–132.
16.
Yeh, H. D. (1987). “Discussion of numerical determination of aquifer parameters.”J. Hydr. Engrg., ASCE, 113(7), 948–951.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 127 • Issue 6 • June 2001
Pages: 466 - 470
History
Received: Jan 7, 2000
Published online: Jun 1, 2001
Published in print: Jun 2001
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.