Porosity and Permeability Calculation Using NMR Logging in an Iraqi Oil Field

Abstract

This study aims of analysing the NMR data and extracting the petrophysical properties of a well in an Iraqi oil field, T2 analysis forms the basis of more complex analysis for the interpretation of NMR, including wettability analysis, facies discrimination and the identification of reservoir units from NMR data. T2 analysis can also be used to calculate porosity, calculate the geometric mean of the distribution, track the position of the modes (peaks of the distribution), and estimate fluid viscosity. NMR logging data has been used for an Iraqi oil field and interpreted to calculate PHIT, PHIE, BVI, CBW, FFI and K. In this current research the petrophysical properties have been calculated and the moveable fluid zone has been detected, where the porosity and permeability values are significant with a good value of FFI which represents the reflection of high value of T2.