Convert Millidarcy to Microdarcy
Convert Millidarcy (mD) to Microdarcy (µD) instantly and accurately.
Conversion Formula
µD = mD × 1000
About Millidarcy
The millidarcy (mD) equals 10⁻³ D ≈ 9.869 × 10⁻¹⁶ m², the everyday unit in petroleum reservoir engineering worldwide. Conventional sandstone reservoirs: 1-1 000 mD; carbonate reservoirs: 0.1-100 mD; economic gas recovery typically requires k ≥ 0.1 mD. Permeameter and well-test reports give results in mD. 1 mD = 10⁻³ D = 10³ µD.
About Microdarcy
The microdarcy (µD) equals 10⁻⁶ D ≈ 9.869 × 10⁻¹⁹ m², used for tight gas sands, coalbed methane matrix, and low-permeability carbonates. North Sea tight sandstones: 0.01-1 µD; coalbed methane matrix: 1-100 µD; mudrock caprocks: 0.001-1 µD. 1 µD = 10⁻³ mD = 10³ nD.
Quick Reference Table
| Millidarcy (mD) | Microdarcy (µD) |
|---|---|
| 1 mD | 1000 µD |
| 2 mD | 2000 µD |
| 5 mD | 5000 µD |
| 10 mD | 10000 µD |
| 25 mD | 25000 µD |
| 50 mD | 50000 µD |
| 100 mD | 100000 µD |