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Nuclear magnetic resonance experiments on foam flooding and evaluation of foam dynamic stability
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Jingnan ZHANG,Qinfeng DI,Shuai HUA,Feng YE,Yuan LI,Wenchang WANG
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Table 5 Calculation of foam dynamic instability factors of 4 groups.
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| No. | Aoi | Awi | moi/g | mwi/g | ΔAo | ΔAw | mw/g | Δm/g | nm,in | f | | 1# | 23 430.35 | 20 713.04 | 8.06 | 14.98 | -10 048.02 | 3 101.69 | 3.64 | -2.22 | 0.0139 | 0.77 | | 2# | 23 861.70 | 20 994.66 | 8.56 | 14.34 | -13 335.11 | 3 029.24 | 3.47 | -1.52 | 0.0177 | 0.56 | | 3# | 15 136.01 | 13 353.22 | 7.08 | 14.22 | -3 088.03 | -3 752.06 | 9.15 | -3.16 | 0.0229 | 0.36 | | 4# | 18 687.41 | 16 287.83 | 7.22 | 14.03 | -5 385.98 | -1 645.08 | 6.10 | -2.96 | 0.0242 | 0.14 |
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