Understanding of the Reservoir Behavior Based on the Reservoir Pressure and Fault Block Communications of the Nubia Sandstone, October Field, Gulf of Suez

By

Gamal Ragab Gaafar¹, Mahmoud Youssery Zein El-Din²

(1) GUPCO, Cairo, Egypt (2) Al-Azhar University, Cairo, Egypt

The Nubia sandstone reservoir in October oil field is one of the most prolific reservoirs in Egypt. It is represented by a massive sandstone body separated by shale beds. The most effective of these shale beds is the M II shale, which extends throughout the field and appears to form a vertical barrier to the flow of fluids and pressure equalization and production in the field.

Pressure analysis of the Nubia sandstone reservoir helped to understand the degree of communication between the units, above and below the M II shale.Ê The analysis of the RFT, TDT, PLT, core data, and production data are used to explain reservoir heterogeneity.

Construction of water movement cross sections is a good tool to understand the progressive of water front advancement through time, which in turn will help to quantify areas of bypassed oil and consequently recommend further infill-drilling locations.