Water saturation

Water saturation (S_w) of a reservoir is a function of height above free water (h) and pore type. S_w interpretations should be made accounting for h, r₃₅, and pore throat size distribution in the reservoir. The Archie equation is the most widely used method of determining S_w.

${\text{Hydrocarbon saturation }}({\text{S}}_{\text{h}})=1-{\text{S}}_{\text{w}}$

See also

• Determining water saturation
• Interpreting water saturation
• Archie equation

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