Petrophysical characterization for Pliocene Reservoirs in Tao Field, Offshore North Sinai concession, via well logging interpretation

Abstract

In the present study, the sandstones of the Pliocene Kafr ElSheikh and ElWastani Formations were evaluated for being promising gas reservoirs in the Offshore North Sinai concession at Tao field in the Nile Delta Basin. The study depended on interpretation of available well log data in four wells (Tao-1, Tao-2, Tao-6 and Tao-8). The well logs data analysis demonstrated that only Tao-1 Well proved to be potential gas reservoir. The favorable zone within El-Wastani Formation is found between depths 670.3m and 681.6m (Zone A). Moreover, the favorable zones in Kafr ElSheikh Formation have depths: 1299-1316.8m (Zone B) and 1430-1477.5m (Zone C). El-Wastani Formation Zone A is the most efficient gas-bearing zone in Tao-1 Well; since it possesses zero VSh, low SW (10%) and low BVW (0.04). Moreover, the sandstones of Kafr ElSheikh Formation in Tao-1 embrace two reservoir zones, (B and C) with total thickness of 17.8m and 47.5m respectively. Furthermore, the achieved results revealed that zones B and C are expected to produce gas free water.