Designing Wells to Optimize Performance and Efficiency - ICWT

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Pumping Step Test Discharge (Q) GPM STATIC WATER LEVEL Step 1 Pumping Level ----> Step 2 Pumping Level ----> Step 3 Pumping Level ----> Specific Specific Discharge Drawdown Capacity Drawdown . Q s Q/s s/Q 500 gpm 20 ft 25 gpm/ft .04 ft/gpm 1000 gpm 52 ft 19 gpm/ft .05 ft/gpm 1500 gpm 92 ft 16 gpm/ft .06 ft/gpm AQUIFER 44
SPECIFIC DRAWDOWN, s/Q, ft/gpm Solving for Aquifer <strong>and</strong> Well Loss Coefficients - Specific Drawdown Plot 0.06 0.04 C = 0.000025 ft/gpm (Well Loss Coefficient) 0.02 B = 0.025 ft/gpm (Aquifer Loss Coefficient) 0 0 500 1000 1500 DISCHARGE, Q, [gpm] 45
Page 1 and 2: Designing Wells to Optimize Perform
Page 3 and 4: Pumping Well Terminology Cone Of De
Page 5 and 6: Critical Components in Designing Ef
Page 7 and 8: Select Samples for Sieve Tests
Page 9 and 10: Wt. % Finer (passing) 20-48 50-60 6
Page 11 and 12: Efficiency Case Study - Big Pine, C
Page 13 and 14: Properly Designed Gravel Envelope &
Page 15 and 16: Damage Zone Repair Drilling Damage
Page 17 and 18: Predevelopment • Predevelopment c
Page 19 and 20: Collapse Due to Slot Plugging
Page 21 and 22: Swabbing and Circulating • Prelim
Page 23 and 24: Development by Swabbing
Page 25 and 26: Single Swab Development • Beginni
Page 27 and 28: Double Swab
Page 29 and 30: Final Development / Pump Developmen
Page 31 and 32: Final Development • Final Develop
Page 33: Rossum Sand Tester
Page 38 and 39: Specific Drawdown, s/Q 0.080 Well D
Page 40 and 41: Water Level in Pumping Well Well Lo
Page 42 and 43: Ground Surface Q Static Water Level
Page 46 and 47: Data Discharge Drawdown Specific Ca
Page 48 and 49: Maintaining Well Efficiency • Inc
Page 50 and 51: 50 Physical Clogging
Page 52 and 53: Example of Energy Cost Case 1: New
Page 54 and 55: SUMMARY • The efficiency of the w

Designing Wells to Optimize Performance and Efficiency - ICWT

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