Sedimentary Analysis of Rift Related Fan Deltas in the Gulf of Suez Using High Resolution Image Electrofacies

The Gulf of Suez is a failed intracontinental rift that forms the NW-SE trending continuation of the Red Sea rift system. A complete petroleum system is represented by the Miocene syn-rift succession in the Gulf of Suez. The Burdigalian Yusr sand reservoirs, which belong to the Rudeis Formation, were deposited as submarine fans. Sedimentary analysis was performed using the wireline conveyed microimaging tool for electrofacies identification. Two wells, H-27 and HN-1X in H Field, Gulf of Suez, were included in this multiwell sedimentological study. Based on sedimentary structures visible in high resolution image logs, the depositional framework was used to predict reservoir quality and understand the geometry of the Yusr sand members. Prograding deltas with numerous, thick proximal fans were identified in well H-27 as compared with the limited, thin proximal fans, fining up channel fills and interlobe fine grained deposits encountered in well HN-1X. A correlation and paleocurrent analysis revealed the best drilling location in the field and consequently, an exploratory well was drilled in January 2015 based on this study.