AN INTEGRATED APPROACH FOR PETROPHYSICAL EVALUATION OF SHALY SAND RESERVOIRS IN SIMIAN FIELD, NILE DELTA,EGYPT

Submarine channel complexes as in the Nile Delta province has complex geologic settings with a great degree of heterogeneity in reservoir properties, so this study will focus on the study of general geological setting in Simian field in Nile Delta, in addition to the study of the petrophysical, and sedimentological characteristics of the upper Pliocene reservoir rocks of Wastani formation in Simian field. Such studies are intended to improve the process of reserve estimation of the study area. The study includes calculation of petrophysical parameters for Simian reservoir rocks using advanced and conventional logging tools in the available wells to create lithology saturation cross plots and the lithologic identification cross plots ,clay minerals identification, introducing the lateral variation of the lithology and the different saturation distribution in the Pliocene reservoir and comparison of different petrophysical results to select the proper approach that can fit with channelized system to get accurate petrophysical parameters considering all the uncertainty related to reserve calculation to optimize the further development activity.