Improvement of Well Efficiency through Well Development in a Pumping Well

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2010 Vol.15, Issue 1 Preview Page Next Page

Improvement of Well Efficiency through Well Development in a Pumping Well 충적층 양수정에서 우물개량을 통한 우물효율의 개선: 김규범;김병우;김성윤;
Kim, Gyoo-Bum;Kim, Byung-Woo;Kim, Sung-Yun;

28 February 2010. pp. 39 ~ 49

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Abstract

Drilling at unconsolidated layer can make the aquifer disturbed and reduce a productivity of groundwater well. Surge block and air surging were applied to a pumping well located in Jeungsan-ri, Changnyung-gun, to improve a well efficiency by removing clogging and fine-grained slime. Two experimental log-linear equations, $y_1=-0.1769\;ln(x_1)+0.4960$ and $y_2=-84.3358\;ln(x_2)+512.8162$, were proposed in this site, in which $x_1$ and $x_2$ are the number of surging event, $y_1$ is the amount of slime, and $y_2$ is a recovery time of groundwater level after air surging. Well loss exponent (P) decreased after surging, from 3.422 to 1.439, and the groundwater inflow from aquifer happened in all directions around a well with gradually increasing the homogeneity in a local aquifer's hydraulic property. It was revealed that long-term well development should be done in the pumping well which is located in unconsolidated sediments to increase a well productivity.

Keywords

Well development;Well efficiency;Clogging;Slime;Unconsolidated layer;

References

김남장, 이규홍, 1964, 한국지질도 영산도폭(1:50,000), 국립지질조사소.
정상용, 김병우, 김규범, 권해우, 2009, 단계양수시험 해석시 우물상수 산정 방법이 우물효율에 미치는 영향, 대한지질공학회, 19(1),71-79.
한정상, 1997, 지하수환경과 오염, 박영사, 서울, 1071p.
Davis, R., 2003, Aquifer analysis and proper well development to maximize pumping capacity in alluvial wells, Water Well Journal, 57(2), 34-37.
Driscoll, F.G., 1986, Groundwater and Wells, 2nd Edition, Johnson Division, St. Paul, MN., 1108p.
Hix, G.L., 1993, Monitoring well development: Tools and techniques, Water Well Journal, 47(6), 52-57.
Houben, G and Treskatis, C., 2007, Water Well; Rehabilition and Reconstruction, McGraw-Hill Companies, Inc., 391p.
Jacob, C.E., 1947, Drawdown test to determine effective radius of artesian well, Transactions of ASCE, 112, 1047-1070.
Labadie, J.W. and Helweg, O.J., 1975, Step-drawdown test analysis by computer, Ground Water, 13(5), 438-444.10.1111/j.1745-6584.1975.tb03611.x
McDonald, D., 1980, Well development is the critical link, Irrigation Age, 54-55.
Rosberg, J.E. and Bjelm, L., 2009, Well development by jetting using coiled tubing and simultaneous pumping. Ground Water, doi: 10.1111/j.1745-6584.2009.00588.x. 1-6.
Roscoe Moss Company, 1990, Handbook of Ground Water Development, John Wiley and Sons, New York, 512p.
Sterrett, R.J., 2007, Groundwater and Wells, 3rd Edition, Johnson Screens, New Brighton, Minnesota, 812p.
Wendling, G, Chapuis, R.P., and Gill, D.E., 1997, Quantifying the effects of well development in unconsolidated material, Ground Water, 35, 387-399.10.1111/j.1745-6584.1997.tb00097.x
Zdenek, F.F, and Alfred, R.E., 1980, Correct methods are essential to well development, Johnson Driller's Journal. 1-6.

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 : 15
No :1
Pages :39 ~ 49

[1] 김남장, 이규홍, 1964, 한국지질도 영산도폭(1:50,000), 국립지질조사소.

[2] 정상용, 김병우, 김규범, 권해우, 2009, 단계양수시험 해석시 우물상수 산정 방법이 우물효율에 미치는 영향, 대한지질공학회, 19(1),71-79.

[3] 한정상, 1997, 지하수환경과 오염, 박영사, 서울, 1071p.

[4] Davis, R., 2003, Aquifer analysis and proper well development to maximize pumping capacity in alluvial wells, Water Well Journal, 57(2), 34-37.

[5] Driscoll, F.G., 1986, Groundwater and Wells, 2nd Edition, Johnson Division, St. Paul, MN., 1108p.

[6] Hix, G.L., 1993, Monitoring well development: Tools and techniques, Water Well Journal, 47(6), 52-57.

[7] Houben, G and Treskatis, C., 2007, Water Well; Rehabilition and Reconstruction, McGraw-Hill Companies, Inc., 391p.

[8] Jacob, C.E., 1947, Drawdown test to determine effective radius of artesian well, Transactions of ASCE, 112, 1047-1070.

[9] Labadie, J.W. and Helweg, O.J., 1975, Step-drawdown test analysis by computer, Ground Water, 13(5), 438-444.10.1111/j.1745-6584.1975.tb03611.x

[10] McDonald, D., 1980, Well development is the critical link, Irrigation Age, 54-55.

[11] Rosberg, J.E. and Bjelm, L., 2009, Well development by jetting using coiled tubing and simultaneous pumping. Ground Water, doi: 10.1111/j.1745-6584.2009.00588.x. 1-6.

[12] Roscoe Moss Company, 1990, Handbook of Ground Water Development, John Wiley and Sons, New York, 512p.

[13] Sterrett, R.J., 2007, Groundwater and Wells, 3rd Edition, Johnson Screens, New Brighton, Minnesota, 812p.

[14] Wendling, G, Chapuis, R.P., and Gill, D.E., 1997, Quantifying the effects of well development in unconsolidated material, Ground Water, 35, 387-399.10.1111/j.1745-6584.1997.tb00097.x

[15] Zdenek, F.F, and Alfred, R.E., 1980, Correct methods are essential to well development, Johnson Driller's Journal. 1-6.

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

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