Fig. 3 | Scientific Reports

Fig. 3

From: Petrophysical assessment of reservoir quality and recoverable reserves in fluviodeltaic Nubian sandstone Saqqara field Gulf of Suez Egypt

Fig. 3

Flowchart illustrates the formation evaluation steps used in the study. The chart outlines key petrophysical calculations, including lithology identification, porosity, permeability, water and hydrocarbon saturation, and hydrocarbon reserves estimation. Each step is associated with specific methods such as the Neutron Density Cross-plot, Wyllie & Rose Method, Pickett Plot, and the Volumetric Method, providing a systematic approach to reservoir characterization and hydrocarbon assessment.

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