Calibration ranges in terms of the measured permeability coefficient or coordinates A and B for various grading entropy permeability-prediction models
| Equation (model) | A | B | kM: m/s | Reference |
|---|---|---|---|---|
| Equation 5 | Not reported | Not reported | 2·0 × 10−6 to 3·8 × 10−4 | Feng et al. (2018a) |
| Equation 6 | 0·64–0·94 | 0·46–1·01 | 4·2 × 10−3 to 5·6 × 10−1a | Feng et al. (2019a) |
| Equation 7 | Not reported | Not reported | 1·0 × 10−6 to 6·0 × 10−1b | Feng et al. (2018b) |
| Equation 8 | 0·44–0·72 | 0·85–1·26 | 7·2 × 10−7 to 5·6 × 10−4c | Arshad et al. (2019) |
| Equation (model) | Reference | |||
|---|---|---|---|---|
| Equation 5 | Not reported | Not reported | 2·0 × 10−6 to 3·8 × 10−4 | |
| Equation 6 | 0·64–0·94 | 0·46–1·01 | 4·2 × 10−3 to 5·6 × 10−1 | |
| Equation 7 | Not reported | Not reported | 1·0 × 10−6 to 6·0 × 10−1 | |
| Equation 8 | 0·44–0·72 | 0·85–1·26 | 7·2 × 10−7 to 5·6 × 10−4 |
Data set X in the present investigation
Computed from the measured intrinsic permeability range reported by Feng et al. (2018b)
Data set Y in present investigation
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