11. Sources of variability in water production
•
0
200
400
600
800
1000
1200
1400
1600
1 51 101 151 201 251 301 351
WaterProduction,bbl
Time, days
Produced water (>164
days)
Transition water (31-163
days)
Frac Flowback (<30 days)
12.
13.
14. Time period
Water production
(bbl)
Water production volume
per stage
(bbl/stage)
Two tail t-test
(p value)
Long Normal Long Normal
Frac flowback 26130 13420 690 670 0.71
Transition water 14750 8340 390 420 0.66
Produced water 6520 3540 170 180 0.52
Total 47400 25300 1250 1260 0.51
Sources of variability in water production
15.
16. •
Sources of variability in water production
0
200
400
600
800
1000
1200
1400
1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86
Waterproduction,bbl
Time,days
Recycled
Non-recycled
Time period
Recycled/Fresh Blend (1/7)
(bbl)
Fresh Water
(bbl)
Two tail t-test
(p value)
Frac flowback 7620.32 8281.41 0.63
Transiton water 1783 1984.87 0.52