Research Article
The Applicability of Different Fluid Media to Measure Effective Stress Coefficient for Rock Permeability
Table 3
Results of ESCK measured by three different fluid media.
| Sample | Fluid media | Pore pressure | Range | Average value |
| HH50-06 | Nitrogen | Unload | (0.65, 1.04) | 0.78 ± 0.11 | Load | (0.16, 1.18) | 0.54 ± 0.30 | Distilled water | Unload | (1.13, 7.01) | 2.80 ± 1.69 | Load | (1.31, 6.25) | 3.25 ± 1.39 | Brine | Unload | (1.30, 2.06) | 1.61 ± 0.24 | Load | (0.53, 3.30) | 1.63 ± 0.79 |
|
|