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What is permeability? (view source)
Revision as of 22:08, 24 February 2014
, 22:08, 24 February 2014→Steady-state permeability equation
==Steady-state permeability equation==
==Steady-state permeability equation==
[[file:predicting-reservoir-system-quality-and-performance_fig9-24.png|thumb|{{figure number|1}}See text for explanation.]]
[[Permeability]] is not measured; it is calculated. The steady-state equation for calculating permeability (using an integrated form of Darcy's law) is
[[Permeability]] is not measured; it is calculated. The steady-state equation for calculating permeability (using an integrated form of Darcy's law) is
* μ = air viscosity, cp
* μ = air viscosity, cp
The following diagram of a plug illustrates some of these variables.
The diagram of a plug in [[:file:predicting-reservoir-system-quality-and-performance_fig9-24.png|Figure 1]] illustrates some of these variables.
[[file:predicting-reservoir-system-quality-and-performance_fig9-24.png|thumb|{{figure number|9-24}}See text for explanation.]]
==Limitations of darcy's equation==
==Limitations of darcy's equation==