Convert Kilodarcy to Nanodarcy
Convert Kilodarcy (kD) to Nanodarcy (nD) instantly and accurately.
Conversion Formula
nD = kD × 1000000000000
About Kilodarcy
The kilodarcy (kD) equals 10³ D ≈ 9.869 × 10⁻¹⁰ m², used for very high-permeability porous structures. Gravel packs in oil wells: 1-100 kD; vuggy dissolved carbonates: 1-10 kD; loose sand-gravel mixtures: 10-1 000 kD. 1 kD = 10³ D = 10⁶ mD.
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.
Quick Reference Table
| Kilodarcy (kD) | Nanodarcy (nD) |
|---|---|
| 1 kD | 1 × 1012 nD |
| 2 kD | 2 × 1012 nD |
| 5 kD | 5 × 1012 nD |
| 10 kD | 1 × 1013 nD |
| 25 kD | 2.5 × 1013 nD |
| 50 kD | 5 × 1013 nD |
| 100 kD | 1 × 1014 nD |