Convert Centimetre squared to Millidarcy
Convert Centimetre squared (cm²) to Millidarcy (mD) instantly and accurately.
Conversion Formula
mD = cm² × 101325000000
About Centimetre squared
The centimetre squared (cm²) equals 10⁻⁴ m² ≈ 1.013 × 10¹¹ D, present in unit-conversion tables as a logical extension of the SI area series. It is effectively beyond the range of any natural porous medium and arises only in theoretical packed-bed studies or large-aperture industrial filter specifications. 1 cm² = 10⁴ mm² = 10⁻⁴ m².
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
| Centimetre squared (cm²) | Millidarcy (mD) |
|---|---|
| 1 cm² | 1.013 × 1011 mD |
| 2 cm² | 2.026 × 1011 mD |
| 5 cm² | 5.066 × 1011 mD |
| 10 cm² | 1.013 × 1012 mD |
| 25 cm² | 2.533 × 1012 mD |
| 50 cm² | 5.066 × 1012 mD |
| 100 cm² | 1.013 × 1013 mD |