Fig. 9

Integrated reservoir quality map for the Nubia Formation in Saqqara Field. The figure combines effective porosity (A), hydrocarbon saturation (B), net pay thickness (C) and Shale volume (D) to visualize the lateral variations in reservoir quality across the study area. Areas with higher porosity and hydrocarbon saturation and thicker net pay zones appear more favorable for production. This figure was prepared using Surfer Software68.