Fig. 7

Picket plots for the Nubia Formation, illustrating the relationship between deep resistivity and effective porosity to estimate water saturation (Sw) and hydrocarbon saturation for different wells. (a) Represents the Picket plot for well GS323-1, (b) represents the Picket plot for well GS323-2 A, (c) represents the Picket plot for well GS323-3, and (d) represents the Picket plot for well GS323-4 A. The diagonal trend lines correspond to varying water saturation levels (Sw = 100%, 75%, 50%, and 25%), with data points plotted to indicate the reservoir characteristics. The hydrocarbon-bearing zones are identified towards the lower Sw regions, while the higher Sw values indicate water saturation zones. The color scale at the bottom of each plot represents the range of effective porosity, aiding in the interpretation of reservoir quality and fluid distribution. This figure was prepared using Techlog Software⁶².