Physical and Chemical Geotechnologies

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Volume 6 (2022)

Vanadium in oils of the Dnipro-Donetsk basin of Ukraine

Yevhen Kozii1*, Valerii Ishkov1,2

Abstract

The paper represents the results of long-term research of the geochemical features of vanadium in the oil from 36 deposits of the Eastern oil and gas region of Ukraine. Based on the results of clustering by means of the weighted centroid method, the first natural classification of oil and gas fields of eastern region of Ukraine according to the content of vanadium in oils was developed. It has been proven that heteroatomic low-molecular sulfur-containing components of the petroleum system are the main concentrators of vanadium in the oil for the studied deposits. It has been shown that, based on the results of the cluster analysis, sample average values of vanadium concentrations that vary significantly between individual deposits or groups of deposits for established ranges could be interpreted in terms of qualitative assessment as follows: abnormally low; low; below average; average; above average; high; abnormally high. The implementation of this kind of approach makes it possible to visually compare and interpret in terms of geology various scale and various indicators of oil deposits obtained by means of experimental research.

Keywords: oil, vanadium, geochemical oil parameters, correlation coefficient, cluster analysis, linear regression equations.

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