Convert Nanodarcy to Microdarcy
Convert Nanodarcy (nD) to Microdarcy (µD) instantly and accurately.
Conversion Formula
µD = nD × 0.001
About Nanodarcy
The nanodarcy (nD) equals 10⁻⁹ D ≈ 9.869 × 10⁻²² m², the standard permeability unit for ultra-tight unconventional reservoirs. Barnett, Marcellus, and Eagle Ford shale matrix: 1-1 000 nD; crystalline basement rocks and caprocks: below 1 nD. Measured by pulse-decay or GRI crushed-rock methods. 1 nD = 10⁻³ µD = 10⁻⁶ mD.
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
| Nanodarcy (nD) | Microdarcy (µD) |
|---|---|
| 1 nD | 0.001 µD |
| 2 nD | 0.002 µD |
| 5 nD | 0.005 µD |
| 10 nD | 0.01 µD |
| 25 nD | 0.025 µD |
| 50 nD | 0.05 µD |
| 100 nD | 0.1 µD |