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IUGG XXIV General Assembly July 2-13, 2007 Perugia, Italy
(S) - IASPEI - International Association of Seismology and Physics of the Earth's
Interior
JSS001 Oral Presentation 1716
The relation between the rock variables and exponents and the lithology of
nukhul formation at Ferian Oil Field, central part of the Gulf of Suez, Egypt.
Prof. Mahmoud Ghorab
GEOPHYSICS WELL LOGGING
In oil production, the prime importance is directed to define the types and amounts of fluids
encountered in the concerned formations. These determinations require the calculation of the formation
porosity, so the present work is devoted to show the effect of the lithology on the different reservoir
characteristics specially porosity where the rock variables and exponent (m, n and a) are very important
in the porosity calculation. The area of study lies in the central part of the eastern side of the Gulf of
Suez ,Egypt, where eight wells were selected (HH84-1,GG85-1,WFA-1, GS 206-1A,GS 196-1A,Tanka-1,
Tanka-3 and Tanka-4) to calculate the rock variables and exponent (m,n and a) and their lithology.
Different crossplots are used to define the rock variables and lithology for the Nukhul Formation. The"
m "values are between 1.9 and 2.5 and "a" values are between 2.1 and 2.5 while the related lithologies
are carbonate, shale, and sandstone. The petrophysical parameters like porosity and hydrocarbon
saturation show that Nukhul Formation can be considered as a fair reservoir for oil production in the
study area.