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Relative permeability (view source)
Revision as of 20:23, 4 September 2014
, 20:23, 4 September 2014→Pore throat size and kr
[[file:predicting-reservoir-system-quality-and-performance_fig9-28.png|300px|thumb|{{figure number|3}}Relative permeability relationships for rock with different pore types.]]
[[file:predicting-reservoir-system-quality-and-performance_fig9-28.png|300px|thumb|{{figure number|3}}Relative permeability relationships for rock with different pore types.]]
Every pore type has a unique relative permeability signature. Consider the hypothetical drainage relative permeability type curves shown in [[:file:predicting-reservoir-system-quality-and-performance_fig9-28.png|Figure 3]]. Curves A, B, and C represent the relative permeability relationships for rocks with different port types: macro, meso, and micro, respectively. Curve A represents a rock with greater performance capability than B or C. Note how critical water saturation decreases as pore throat size increases. Also note the changing position of K<sub>ro</sub>–K<sub>rw</sub> crossover with changes in pore throat size.
Every pore type has a unique relative permeability signature. Consider the hypothetical drainage relative permeability type curves shown in [[:file:predicting-reservoir-system-quality-and-performance_fig9-28.png|Figure 3]]. Curves A, B, and C represent the relative permeability relationships for rocks with different pore types: macro, [[Wikipedia:Mesoporous material|meso]], and micro, respectively. Curve A represents a rock with greater performance capability than B or C. Note how critical water saturation decreases as pore throat size increases. Also note the changing position of K<sub>ro</sub>–K<sub>rw</sub> crossover with changes in pore throat size.
==Critical water saturation==
==Critical water saturation==