Quantitative Evaluation for Improvement Effects of Performance After Mechanical Rehabilitation Treatments on Agricultural Groundwater Well

doi:10.7857/JSGE.2016.21.4.042

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2016 Vol.21, Issue 4 Preview Page Next Page

Quantitative Evaluation for Improvement Effects of Performance After Mechanical Rehabilitation Treatments on Agricultural Groundwater Well 농업용 관정의 기계적 처리 이후 성능 개선 효과의 정량적 평가 사례: 송성호;이병선;안중기;
Song, Sung-Ho;Lee, Byung-Sun;An, Jung-Gi;

31 August 2016. pp. 42 ~ 49

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Abstract

Step-drawdown pumping tests for identifying the improvement of groundwater well performance after rehabilitation treatments were conducted in three longstanding wells. Three selective mechanical treatment methods including power bubble, high-voltage electric pulse, and air surging were applied to these wells and the applicability of these methods to secure additional groundwater resources were evaluated quantitatively. Commonly, drawdown at final stage of stepdrawdown pumping tests after rehabilitation decreased by as much as 0.61~0.70 meters compared to those before rehabilitation. In addition, final specific drawdown values of three wells increased from 9% to 14% after rehabilitation. Formation loss coefficient and well loss coefficient decreased to 6.1% and 60.6%, respectively, indicating some clogging materials by precipitation/corrosion/microbe within pores of aquifer materials, gravel packs, and screens were effectively removed by applied methods. Decrease of formation loss coefficient was higher in the well applied by the power bubble method meanwhile high-voltage electric pulse method demonstrated the higher decrease of well loss coefficient. Additionally secured groundwater amounts after rehabilitation ranged from 23.3 to 32.1 m³/day, which account for 8~16% of initially developed pumping rates of the wells. From the results of this study, the effective selection of rehabilitation treatments considering aquifer characteristics are expected to contribute to secure groundwater resources for irrigation as well as to plan systematic management program for groundwater resources in rural area.

Keywords

Rehabilitation;Step-drawdown pumping test;Specific drawdown;Formation loss;Well loss;

References

Bierschenk, W.H., 1963, Determination well efficiency by multiple step-drawdown tests, Intern. Assoc. Sci. Hydrol., 64, 493-507.
Choi, B.S., 2007, A method for storativity compensation in single well test analysis, J. Soil Groundw Environ. (In Korean), 12(3), 36-43.
Chung, K.J., Lee, S.G., Dang, J.J., Choi, G.H., Hwang, Y.S., Kim, C.Y., and Park, Y.J., 2013, Feasibility study for the cleaning of well screens using high-voltage pulsed discharge, J. Eng. Geol. (In Korean), 23(1), 29-36.
Cooper, H.H.Jr. and Jacob, C.E., 1946, A generalized graphical method for evaluating formation constants and summarizing well field history, Trans, Amer. Geophy. Union, 27(4), 526-534.10.1029/TR027i004p00526
Driscoll, F.G., 1986, Groundwater and Wells, 2nd Edition,. Johnson Division, St. Paul, Minnesota. 1089 p.
Gass, T.E., Bennett, T.W., Miller, J., and Miller, R., 1980, Manual of Water Well Maintenance and Rehabilitation Technology; National Water Well Association, Dublin, Ohio, 247 p.
Houben, G. and Treskatis, C., 2007, Water Well: Rehabilitation and Reconstruction, McGraw-Hill, N.Y. 391 p.
Jacob, C.E., 1947, Drawdown test to determine effective radius of artesian well, Trans. Amer. Soc. Civil Engrgs., 112, 1047-1064.
KRC (Korea Rural Community Corporation), 1997, A Study of Appropriate Post Management Methods for Tube Wells, 358 p.
Kruseman, G.P. and de Ridder, N.A., 1991, Analysis and Evaluation of Pumping Test Data, 2nd Edition, International Institute for Land Reclamation and Improvement, Wageningen, The Netherlands. 200 p.
K-water, 2011, Establishment of Sustainable Groundwater Development System and Its Merchandising, Sustainable Water Resources Research Center of 21st Century Frontier Research Program (code number 3-4-3), 1054 p.
Rorabaugh, M.J., 1953, Graphical and theoretical analysis of step-drawdown test of artesian well, Proc. Amer. Soc. Civil Engrgs., 79, p. 23.
Theis, C.V., 1935, The relation between the lowering of piezometric surface and the rate and duration of discharge of a well using ground water storage, Trans. Amer. Geophy. Union, 16, 518-524.
Todd, D.K., 1980, Groundwater Hydrology, John Wiley & Sons, N.Y. 535 p.

Information

Publisher :The Korean Society of Soil and Groundwater Environment
Publisher(Ko) :한국지하수토양환경학회
Journal Title :Journal of Soil and Groundwater Environment
Journal Title(Ko) :지하수토양환경
Volume : 21
No :4
Pages :42 ~ 49
DOI :https://doi.org/10.7857/JSGE.2016.21.4.042

[1] Bierschenk, W.H., 1963, Determination well efficiency by multiple step-drawdown tests, Intern. Assoc. Sci. Hydrol., 64, 493-507.

[2] Choi, B.S., 2007, A method for storativity compensation in single well test analysis, J. Soil Groundw Environ. (In Korean), 12(3), 36-43.

[3] Chung, K.J., Lee, S.G., Dang, J.J., Choi, G.H., Hwang, Y.S., Kim, C.Y., and Park, Y.J., 2013, Feasibility study for the cleaning of well screens using high-voltage pulsed discharge, J. Eng. Geol. (In Korean), 23(1), 29-36.

[4] Cooper, H.H.Jr. and Jacob, C.E., 1946, A generalized graphical method for evaluating formation constants and summarizing well field history, Trans, Amer. Geophy. Union, 27(4), 526-534.10.1029/TR027i004p00526

[5] Driscoll, F.G., 1986, Groundwater and Wells, 2nd Edition,. Johnson Division, St. Paul, Minnesota. 1089 p.

[6] Gass, T.E., Bennett, T.W., Miller, J., and Miller, R., 1980, Manual of Water Well Maintenance and Rehabilitation Technology; National Water Well Association, Dublin, Ohio, 247 p.

[7] Houben, G. and Treskatis, C., 2007, Water Well: Rehabilitation and Reconstruction, McGraw-Hill, N.Y. 391 p.

[8] Jacob, C.E., 1947, Drawdown test to determine effective radius of artesian well, Trans. Amer. Soc. Civil Engrgs., 112, 1047-1064.

[9] KRC (Korea Rural Community Corporation), 1997, A Study of Appropriate Post Management Methods for Tube Wells, 358 p.

[10] Kruseman, G.P. and de Ridder, N.A., 1991, Analysis and Evaluation of Pumping Test Data, 2nd Edition, International Institute for Land Reclamation and Improvement, Wageningen, The Netherlands. 200 p.

[11] K-water, 2011, Establishment of Sustainable Groundwater Development System and Its Merchandising, Sustainable Water Resources Research Center of 21st Century Frontier Research Program (code number 3-4-3), 1054 p.

[12] Rorabaugh, M.J., 1953, Graphical and theoretical analysis of step-drawdown test of artesian well, Proc. Amer. Soc. Civil Engrgs., 79, p. 23.

[13] Theis, C.V., 1935, The relation between the lowering of piezometric surface and the rate and duration of discharge of a well using ground water storage, Trans. Amer. Geophy. Union, 16, 518-524.

[14] Todd, D.K., 1980, Groundwater Hydrology, John Wiley & Sons, N.Y. 535 p.

Journal of Soil and Groundwater Environment ISSN:1598-6438(Print) 2287-8831(Online) 지하수토양환경

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