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Effects of salinity and ionic composition of smart water on mineral scaling in carbonate reservoirs during water flooding
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GHASEMIAN Javad,RIAHI Siavash
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Table 5 Statistics on experimental results on core samples.
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| No. | Contact time/
h | Injected water | Initial permeability/
10-3 μm2 | Final permeability/
10-3 μm2 | Extent of permeability drop/% | | 1 | 0 | PGSW | 33.04 | 12.93 | 60.86 | | 2 | 12 | PGSW | 35.60 | 9.20 | 74.16 | | 3 | 24 | PGSW | 33.53 | 7.81 | 76.71 | | 4 | 48 | PGSW | 34.19 | 7.92 | 76.84 | | 5 | 12 | PGSW_1Ca3Mg1S | 34.44 | 9.94 | 71.14 | | 6 | 12 | PGSW_1Ca4Mg1S | 35.13 | 11.51 | 67.24 | | 7 | 12 | PGSW_1Ca1Mg2S | 30.59 | 6.39 | 79.10 | | 8 | 12 | PGSW#5D | 34.69 | 11.26 | 67.54 | | 9 | 12 | PGSW#10D | 29.10 | 8.38 | 71.20 |
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