03108nas|a2200385 i 4500 20260817162517.0 121095s1991 th uu m rtt 00| a1eng d .b10083133 AIT RSPR no. WA-91-2 Khalid, Sajjad Analysis on well spacing Bangkok : Asian Institute of Technology, 1991 80 p Research studies project report ; no. WA-91-2 A research study submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1991 In the face of increasing cost of pumping water and limiting available resources, the well spacing analysis provides a guideline to minimize cost of pumping water and effect of well interference. The aquifers treated in this study are non-leaky confined aquifer, leaky confined aquifer and two mutually leaky confined aquifer. The mathematical models have been used for the determination of dimensionless parameters and cost of water production. Coefficient of interference has been calculated by using the principle of superposition. Theis nonequilibrium formula has been used to determine the residual drawdown for n, number of cycles for different values of pumping fraction. The value of drawdown decreases with the increase in storage coefficient of aquifer, time of pumping, leakage factor, recovery period and penetration ratio. But the value of drawdown increases with the increase in number of cycles and hydraulic conductivity ratios. The optimum well spacing increases with the increase in aquifer diffusivity (T/S), and hydraulic conductivity ratio and decreases with the increase in conveyance losses. With the decrease in storage coefficient, the unit cost of water increases for 0.45 and 0.65 value of optimum penetration ratio. The results are presented in the form of graphs between two dimensionless parameters and a numerical example is worked out to illustrate the use of graph. Wells Mathematical models Gupta, Ashim Das, Chairperson Nophadol In-na, Examination committee Noppadon Phienweja, Examination committee Swiss Development Cooperation (SDC), Scholarship donor Asian Institute of Technology. Research studies project report ; no. WA-91-2 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17386 .b10083133 mnait y 240410 2 951012 m a y 0 mnait mnarc 22 40 Barcode : 30050120617534 CREATED : 2013-11-06 RECORD # : i12731481 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120347231 CREATED : 2016-10-06 RECORD # : i1303053x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 5256 5256 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT RSPR no. WA-91-2 30050120617534 2026-08-17 16:25:17 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT RSPR no. WA-91-2 30050120347231 2026-08-17 16:25:17 2026-08-17 40