Analysis of Eurasian oil quality

The study of relationships governing the variability of quality of Eurasian oils has been carried out on the basis of the statistical processing of data chosen from a database on petroleum chemistry which includes more than 9,000 entries of oil physical-chemical data on all the main world oil-bearing basins. It is shown that the crude oils in Eurasia contain paraffin wax (5.3%), sulfur (1%), asphaltene-resin substances (12.3%) and fractions IBP 350/spl deg/C (53.4%). Latitudinal and longitudinal dependencies of integrated oil quality indicator were studied. It is shown that quality of oils is statistically inhomogeneous in Eurasia depending on geographic position of the oil-bearing basins.