الفهرس 
General geologyOnly 14 pages are availabe for public view
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Abstract
The subsurface and formation evaluation of three Early Cretaceous rock units, in the Northern Western Desert of Egypt, named, Kharita, Dahab and Alamein Formations. The evaluation.included qualitative and quantitative analysis ofthe available logs for these formations in six welld,Almaz-I, Abu Subeiha-IX, Fadda-I , Dahab-IX, Washka- IX and Ganayen-IX wells) distributed in the extreme north-central part of the Western Desert. The penetrated sedimentary succession in the present area has been discussed in relation to the subsurface geology of the Northern Western Desert. This succession is marked by a series of transgressions and regressions. The most transgressive phase occurred during Late Cretaceous. During that time, the Alpine movement, which continued throughout the Mesozoic, reached its maximum and resulted in development of the ENE (Syrian Arc) trending structures. The qualitative interpretation of the logging responses has been carried out through two approaches. Firstly, subdividing the sonic and deep resistivity logs into more homogeneous segments in such way that the variance within each zone is minimized and variance between zones is maximized. This subdivision resulted in the construction of a . type composite sonic and resistivity logs for the studied sequence. Three sonic units (Sl,S2,S3) and three resistivity units (Rl,R2,R3) have been distinguished, which correspond to Alamein, Dahab and Kharita Formations. Another sonic unit (S4),corresponds to Bahariya Formation is also distinguished.