Table 1 Using a NUFT model to simulate the propagation of pressure fluctuations between the surface of Aqueduct Mesa and the monitoring borehole embedded in the Disko Elm collapse chimney, a five-parameter variation study was performed to obtain a best fit of the pressure-fluctuation history to observations.
From: Gas transport across the low-permeability containment zone of an underground nuclear explosion
Parameter | Unit | Minimum | Maximum | Mean of top 10 | Best |
|---|---|---|---|---|---|
Fracture aperture | [m] | 1.0000 × 10−4 | 1.0000 × 10−2 | 1.2442 × 10−3 | 8.4258 × 10−4 |
Fracture frequency | [−] | 0.5000 | 10.000 | 1.2324 | 1.0379 |
Fracture permeability | [m2] | 1.0000 × 10−14 | 1.0000 × 10−9 | 4.9911 × 10−9 | 6.9158 × 10−10 |
Matrix permeability | [m2] | 1.0000 × 10−18 | 1.0000 × 10−15 | 9.1720 × 10−18 | 1.0014 × 10−17 |
Bulk permeability | [m2] | 2.6655 × 10−18 | 1.3801 × 10−11 | 5.1549 × 10−13 | 4.5269 × 10−13 |
