Convert Picometre squared to Nanodarcy
Convert Picometre squared (pm²) to Nanodarcy (nD) instantly and accurately.
Conversion Formula
nD = pm² × 0.00101325
About Picometre squared
The picometre squared (pm²) equals 10⁻²⁴ m², used in molecular simulation and crystallography for the intrinsic permeability of dense crystalline solids. Halite and anhydrite crystal lattices have calculated matrix permeabilities below 1 pm²; theoretical studies of gas diffusion through graphene oxide membranes work at this scale. 1 pm² = 10⁻⁶ nm² = 10⁻²⁴ m².
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
| Picometre squared (pm²) | Nanodarcy (nD) |
|---|---|
| 1 pm² | 0.00101325 nD |
| 2 pm² | 0.0020265 nD |
| 5 pm² | 0.00506625 nD |
| 10 pm² | 0.0101325 nD |
| 25 pm² | 0.0253312 nD |
| 50 pm² | 0.0506625 nD |
| 100 pm² | 0.101325 nD |