Resistivity Logging Calculator

Calculate water saturation using Archie's equation from true resistivity, formation water resistivity, and porosity. Runs locally.

True resistivity Rt

Ω·m

Water resistivity Rw

Ω·m

Porosity

fraction

Cementation exponent m

—

Saturation exponent n

—

Enter values to calculate.

All calculations run locally in your browser — nothing leaves your device.