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LaTeX Math Block
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J_{cow}(s_w) = a  \ ( s_{wn} )^{-1 / \lambda}

where

LaTeX Math Inline
bodys_{wn} = \frac {s_w - s_{wс}}{1-s_{wс}}
 – normalised water saturation,

LaTeX Math Inline
bodys_{wс}
 – critical water saturation,

LaTeX Math Inline
bodya, \lambda
 – model parameters which are set for laboratory data on capillary pressure and/or on resistivity water saturation during SHF.

Model parameter 

LaTeX Math Inline
body\lambda
 is related to the the size of the pore size distribution.

The most popular value is 2 but it can vary to smaller or higher values.


See also

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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics / Capillary pressure / Capillary pressure @model / Leverett J-function capillary pressure @model