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Reservoir Formation Damage Episode 2 Part 2 ppsx
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Two-Phase Formation Damage by Fines Migration 257
10 20 30 40
Filtration Time (min)
50 60
• Experiment —r- Simulation
Figure 11-7. Cumulative fluid loss vs. filtration time during mud filtration (Liu
and Civan, ©1996 SPE; reprinted by permission of the Society of Petroleum
Engineers).
0 5 10 15
Core Length (cm)
• Experiment Simulation
Figure 11-8. Instantaneous to initial permeability ratio (or permeability
alteration factor) vs. core length after one hour of filtration time during mud
filtration (Liu and Civan, ©1996 SPE; reprinted by permission of the Society
of Petroleum Engineers).
258 Reservoir Formation Damage
50
100
Experiment
200 300 400
Filtration Time (min.)
Simulation
500 600
— 2-Phase Row
Figure 11-9. Cumulative fluid loss vs. filtration time during dynamic mud
filtration (Liu and Civan, ©1996 SPE; reprinted by permission of the Society
of Petroleum Engineers).
100 200 300 400
Filtration Time (min.)
500 600
Experiment Simulation 2-Phase Flow
Figure 11-10. Instantaneous to initial permeability ratio (or permeability
alteration factor) vs. filtration time during dynamic mud filtration (Liu and Civan,
©1996 SPE; reprinted by permission of the Society of Petroleum Engineers).