Calculate Compensated Water Saturation - Dewan (1983)

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Water Saturation (Sw) - Compensated Water Saturation Equation - Dewan (1983)

Dewan (1983) proposed an equation for the calculation of compensated water saturation, and this takes into account certain rock and fluid properties such as water resistivity, formation resistivity, and sonic derived porosity. The expression is the following:

Where:
• Sw= water saturation of the uninvaded zone
• Rt= true formation resistivity (i.e., deep induction or deep laterolog corrected for invasion)
• Rw= resistivity of formation water at formation temperature
• ɸs= sonic porosity

Calculate Water Saturation (Sw) - Compensated - Dewan (1983)
Rw: ohm-m		Rt: ohm-m
ɸs: Decimal

Made by Henry Herrera