Permeability K - NMR Log

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List of equations assignment

Permeability NMR

It is also possible to calculate permability from nuclear magnetic resonance well logs (NMR). The equation for the calculation of NMR-derived permeability, includes a constant that depends of the formation type, NMR derived porosity, and T2 distribution. The expression is the following:

Where:
• k= NMR-derived permeability
• a= a constant, depending on formation
• ɸNMR= NMR-derived effective porosity
• T2gm= geometric mean of the T2 distribution

Calculate Permeability (k) - NMR
a		ɸnmr (Decimal)
T2gm
Result (mD)

Made by Henry Herrera