PNNL-13501 - Pacific Northwest National Laboratory

0.9 psig, indicated the injection process does not cause a
significant decrease in permeability to the system.
Pressure (psig)
80
60
40
20
References
Water (0.76 cm/min)
Water (7.0 cm/min)
Begin Slurry Injection
(7.0 cm/min)
Begin Water Flush
(0.85 cm/min)
Begin Pretreatment
(7.0 cm/min)
0
0 2 4 6 8 10
Pore Volumes
Figure 4. Inlet back pressure before, during, and after
slurry injection
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