Research Article
Study on Damage Mechanism of Waterflooding Development in Weizhou 11-4N Low-Permeability Oilfield
Table 5
Throat data before and after the D1 core experiment.
| | Mainstream throat radius (μm) | Maximum throat radius (μm) | Average throat radius (μm) | Relative sorting coefficient | Homogeneity coefficient |
| Before speed sensitivity experiment | 3.42 | 8.70 | 3.84 | 0.47 | 0.39 | After speed sensitivity experiment | 2.97 | 8.20 | 3.41 | 0.40 | 0.38 |
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