Research Article
Study on Damage Mechanism of Waterflooding Development in Weizhou 11-4N Low-Permeability Oilfield
Table 6
Throat data before and after the D2 core experiment.
| | Mainstream throat radius (μm) | Maximum throat radius (μm) | Average throat radius (μm) | Relative sorting coefficient | Homogeneity coefficient |
| Before speed sensitivity experiment | 4.68 | 6.30 | 4.63 | 0.37 | 0.69 | After speed sensitivity experiment | 3.98 | 7.40 | 4.36 | 0.32 | 0.56 |
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