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

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

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)
Rw (ohm-m)		Rt (ohm-m)
ɸs (dec)

Results

Water Saturation (Sw) - Results
Rw (ohm-m)	Rt (ohm-m)	ɸs (dec)	Sw (dec)	Sw (%)

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Made by Henry Herrera