Abstract
The present work aims to recognize the geometry and buildmodeling of the Oligo-Miocene unconventional igneous intrusions ofthe fracture reservoir in Rudeis-Sidri field, Gulf of Suez, Egypt. Thesereservoirs, much more difficult to predict, evaluate and to buildmodeling than the conventional reservoirs. Seismic attribute is aquantity extracted or derived from the seismic data that analyzed inorder to enhance information that might be subtler in a traditionalseismic image, leading to a better understanding and interpretation ofthe data. Two attributes (Local Structural Dip), through detecting thescattered dip from the seismic events, (Sweetness), through recognizingthe variations of reflectors, that have potential to predict possiblefracturing and absorption effects, to recognize the geometry to getcriteria to build the modeling process to differentiate betweensedimentary and basalt intrusions. As a result, the combination andintegration of the two types of seismic attributes, the available well logdata analysis as control points to establish building 3-D models, whichhelp to differentiate between the sedimentary and non-sedimentaryrocks, to delineate the geometry, distribution, and to follow the new oilpotentially at Rudeis-Sidri field
Highlights
Rudeis-Sidri oil field is one of the major hydrocarbon-producing fields on the eastern side of the Gulf of Suez, Egypt (Fig. 1)
The production from RudeisSidri oil field comes from Nukhul formation, Matulla and Nubia Formation (Sitta and Volpi, 2012)
A new discovery (ARM-14 well) was drilled in unconventional igneous fractured reservoirs, that interbedded in the sedimentary rocks in 2014 and opened a new challenge for oil potential of the Rudeis-sidri field
Summary
Rudeis-Sidri oil field is one of the major hydrocarbon-producing fields on the eastern side of the Gulf of Suez, Egypt (Fig. 1). A new discovery (ARM-14 well) was drilled in unconventional igneous fractured reservoirs, that interbedded in the sedimentary rocks in 2014 and opened a new challenge for oil potential of the Rudeis-sidri field. Undisturbed pre-rift section, including continental, deep and shallow marine clastics, and carbonates deposits of Paleozoic to Eocene age is found. The Miocene and Pre-Miocene plays of the Gulf of Suez are well established, with important oil discoveries in the marine sandstones of primarily Rudeis, Nukhul and Belayim formations of the Miocene, and mainly the Nubia and Lower Senonian of the Pre-Miocene rocks. The Nukhul Formation is mainly composed of sandstone, claystone, conglomerates, marl and argillaceous limestone and fossiliferous It represents the first shallow marine transgressive deposits in the Gulf of Suez. PreCambrian basement, in Rudies-Sidri area, penetrated at some wells, as well as in Abu Zenima area, at shallow depths (Sidri-6, Sidri-6R, Wadi El-Naqa, South Markha and South Zenima areas) along the main bounding fault, that shown in the schematic stratigraphic column of (Fig. 2)
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