Air-saturated formation permeability to air sweep with Klinkenberg correction or Knudsen correction:
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There is a statistical correlation between absolute permeability and formation porosity
which can be approximated by various permeability-porosity models.
Absolute permeability stays constant for small pressure variations but in a wide range of pressure variations the dependence on ambient pressure can not be neglected and should be tabulated from laboratory core tests or estimated from permeability-pressure correlations.
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics
[Permeability] [Relative permeability] [Absolute permeability @model] [ Basic reservoir properties ]