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Monitoring SUEZ Production Well Performance
2016 AWWA PNWS Conference
Roger Dittus P.G.
May 6, 2016
Well efficiency decline is obviously a bad thing…
Increased pump lift
Pump design becomes “wrong”
wasted energy
lowered ability to meet demand
may become “permanent”
2 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Monitoring well performance
3 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
?
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Fine-grained Sediments
with sand lenses
? ?
C. Petrich
Interbedded sand, silt, clay
Mudstone
Conceptual Cross-Section (Regional Scale)
Shallow coarse-grained sediments and basalt
Volcanic
Rocks
4,000
2,000
2,000
4,000
0
Ele
va
tio
n (
fee
t)
W EMunicipal Domestic Municipal
Adapted from a cross section by S. Wood BSU Geosciences
Arsenic
Uranium
Concentration
> Primary MCL
= “not useful”
Decommission
Treat Fe/Mn
Re-drill
Decommission
Treat Fe/Mn
Re-drill
ASR
SUEZ “Well Op” tool helps us evaluate well performance
8 I
• SUEZ utility in New York modeled Well Op tool on original version of
“Well Watch” software developed under SUEZ R + i Alliance
• Well Op tool creates easily scalable graphs of SCADA system data
• Allows comparison of current/ recent well performance to previous
performance
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Well Op tool
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May 6, 2016 PNWS AWWA
Well Op tool
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May 6, 2016 PNWS AWWA
Well Op tool
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May 6, 2016 PNWS AWWA
Reviewing well operation
12 I
80 feet
300 gpm
Airline problem
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Reviewing well operation
13 I
550 gpm
80 feet50 feet
300 gpm
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Pump & screens cleaned
Tracking well performance decline
14 I
SUEZ Clinton well
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Tracking well performance decline
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1,000 gpm 600 gpm
Pump
throttled
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Tracking well performance decline
16 I
~30% decline
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Evaluating effectiveness of maintenance
17 I
screens
chemically
cleaned
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Evaluating effectiveness of maintenance
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May 6, 2016 PNWS AWWA
Identification of impacts from pumping wells
19 I
SUEZ Goddard well
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Identification of well interference effects
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May 6, 2016 PNWS AWWA
Reduction in specific capacity due to influence of another pumping well
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May 6, 2016 PNWS AWWA
Well interference
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May 6, 2016 PNWS AWWA
Another example
23 I
SUEZ River Run well
Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Another example
24 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
25 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Another example
26 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Another example
• Well Op tool allows for an easy comparison of current to historic well
performance
• Can be more confident of need to perform well, pump, and
monitoring equipment maintenance
• Currently working to translate observations from Well Op Tool into
work orders in GIS-based asset management system
• In a nut shell: Current tool use = we look for a problem to fix
Summary
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May 6, 2016 PNWS AWWA
Always room for improvement
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May 6, 2016 PNWS AWWA
More advanced tool will be available soon
29 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
More advanced tool will be available soon
30 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
Thank you
31 I Monitoring SUEZ Production Well Performance
May 6, 2016 PNWS AWWA
