Petrophysical Evaluation of Pliocene Reservoirs at West Nile Delta, Egypt

Abstract

The offshore Nile Delta basin is considered as one of the most promising province in Egypt which has an excellent potential gas and condensate reserves for future exploration, West Med Block 1 lies offshore on the western side of the Nile Delta. It is between 20 and 100 km from the coast and the city of Alexandria and lies in water depths from 250 m (800 ft) in the southeast to over 1200 m (3800 ft) in the northwest. The aim of this study is directed to evaluate the Kafr Elsheikh reservoir Formation using pretrophysical analysis through determine the different reservoir parameters characterizing the pay zone from well log data to spot light on the promising locations for other further exploration. In addition develop litho-saturation cross plots and the lithologic identification cross plots, introducing the lateral variation of the lithology and the different saturation distribution in the reservoir rock. The available data include logging data of seven representative wells, for the purpose of evaluation the of Kafr Elshikh reservoir. Petrophysical data are illustrated on Iso-parametric maps (total thickness, total porosity, effective porosity, water saturation, shale volume, net sand, net growth sand, net pay and hydrocarbon saturation, residual hydrocarbon saturation and movable hydrocarbon saturation) to indicate the lateral variation, good places for new productive wells, and to represent the reservoir thickness. Moreover deducing some of the factors responsible for the drying or absence of gas productivity of all wells drilled in the study area, and introduces some recommendations related to these conditions of reservoirs. From the results, it can be stated that the study area may be considered containing hydrocarbon accumulation in different locations, and there is a good opportunity to drill other development wells to enhance the productivity from the area of study.