Calculate NMR Log Permeability K - Three-fluid Model - (Coates)

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List of equations assignment

NMR Permeability- Three-fluid Model - (Coates)

The autor Coates, proposed an equation known as the "three-fluid model", based on nuclear magnetica resonance well log (NMR). This equation considers the NMR derived porosity, and some constants that depend on the formation type, and the proportion of fluids filling the reservoir pores. The equation is the following:

Where:
• k= NMR-derived permeability
• ɸNMR= NMR-derived effective porosity
• C= constant, depending on formation
• FFI= proportion of moveable fluids occupying effective porosity
• BVI= proportion of capillary-bound fluids occupying effective porosity

Calculate Permeability (k)- NMR - Coates
ɸnmr: Decimal		C:
FFI:		BVI:

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