Designing Wells to Optimize Performance and Efficiency - ICWT

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Phases of Well Development Pre-development : Controlling drilling fluids during drilling and construction Preliminary development : swabbing, jetting, flushing, airlifting, and bailing Final development : pumping, surging, and backwashing
Predevelopment • Predevelopment consists of the procedures followed during drilling and construction that minimize damage to the aquifer • The single most important procedure here is the control of drilling fluid properties; weight, viscosity, and sand content • Always condition drilling fluids to the proper characteristics before casing and gravel pack installation.
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: Damage Zone Repair Drilling Damage
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 44 and 45: Pumping Step Test Discharge (Q) GPM
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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