Convert Kilodarcy to Millidarcy
Convert Kilodarcy (kD) to Millidarcy (mD) instantly and accurately.
Conversion Formula
mD = kD × 1000000
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 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.
Quick Reference Table
| Kilodarcy (kD) | Millidarcy (mD) |
|---|---|
| 1 kD | 1000000 mD |
| 2 kD | 2000000 mD |
| 5 kD | 5000000 mD |
| 10 kD | 10000000 mD |
| 25 kD | 25000000 mD |
| 50 kD | 50000000 mD |
| 100 kD | 100000000 mD |