Reservoir Characterization and Depositional Pattern of Pliocene and Miocene in the North Nile Delta, Mediterranean Sea , Egypt
This study aims to delineate and evaluate the reservoir characteristics and stratigraphic pattern of Miocene and Pliocene sediments in shallow and deep Mediterranean offshore Nile Delta. Pliocene & Miocene reservoirs are ideal cases for shelf slop and sub sea depositional environment, which deposited as channel fan complex and deep seated sub sea channels. Pliocene reservoirs are represented by Kafr El sheikh and El Wastani Formations.
Kafr El sheikh sands are good example for fining upward turbidite sequence in the down thrown side of east-west growth faults (e.g.. Seth, Ha”py, King & Max gas discoveries). Kafr El sheikh formation is considered the primary reservoir for the many recent gas discoveries with very thick net pay.
On the other hand, Abu Madi Formations (Late Miocene) in which it has a very high reservoir potentiality, is represented by flluivo-marine meandering channels or paleo-valley. (e.g. Baltim gas field). Wakar & Sidi Salim sands (Oligocene) have been deposited in sub sea channels and fan complex (e.g. Wakar, Temsah gas fields) respectively.
By using the most updated petrophysical techniques (Elan, ECS, CMR & Tri-Axial Resistivity/3D Baker method) help to define the fine grained thin laminated reservoirs, differentiate the different facies and depositional models and the stratigraphic pattern.
In addition, regional Seismo-stratigraphy sections within the area led to support the approach of existing of the sedimentological, stratigraphic pattern and the geometry of sand targets.
These reservoirs of the tertiary section are widely distributed westward, northward and eastward in the whole Mediterranean Sea basin, which encourage the gas exploration.
Maximizing Geologic Information in Deep-Water Exploration Prior to Drilling
2004 AAPG International Conference and Exhibition Technical Program