STUDY OF PETROLEUM ZONES: A CONTRIBUTION TO THE APPRAISAL OF HYDROCARBON RESOURCES

Publisher Summary This chapter discusses the different aspects of petroleum zones (PZs). In Saudi Arabia, the HASA zone produces from the Upper Jurassic carbonates of the Arab zone formation; in Kuwait and Safaniyah, the pools produce essentially from the Lower and Middle Cretaceous; and in the Dizful zone, the production comes mainly from the Asmari limestone, Oligo-Miocene in age. Within each of these sets of pools, the traps belong to the same type but important variations may occur from one set to another. The same distribution appears concerning hydrocarbon. The coefficients of correlation between petroleum and geological parameters are significantly better within the class of zones than within the whole file of petroleum zones in which there is a mixture of nonhomogeneous types of oil habitat. An inverse correlation between the rate of sedimentation within the PZ and below the PZ and the rate of filling of a structure is the ratio column of hydrocarbon versus the closure. These single correlations may allow prediction of the petroleum parameter, when knowing the geological one, in well defined geological situations.