Well Log Gamma Ray Index Calculator
Linear gamma-ray index IGR = (GR - GR_clean) / (GR_shale - GR_clean) from log readings in API units; the standard first step toward Larionov-style Vshale estimates.
Description
Linear gamma-ray index IGR = (GR - GR_clean) / (GR_shale - GR_clean) from log readings in API units; the standard first step toward Larionov-style Vshale estimates.