Novruzov Z.A., Garayeva T.J., Bagirova A.A.

Ministry of Science and Education of the Republic of Azerbaijan, Institute of Geology and Geophysics, Azerbaijan 119, H.Javid Ave., Baku, AZ1073: znovruz@yahoo.com

DOI: 10.35714/ggistrat20250200019

Summary. The paper examines the observed changes in magnetic minerals exposed to hydrocarbons. The purpose of the magnetometric study was to identify the relationship between magnetic parameters and manifestations of oil-bearing formations. The oldest oil field, which is located on Pirallahi Island, was chosen as a control object for the study. We studied the magnetic parameters of samples from both sites to compare the magnetic parameters of soils from the Pirallahi oil field with soils not affected by the influence of hydrocarbon fluids from the Dubendi site. As a result of studying the magnetic parameters, it was found that some magnetic parameters of the Pirallahi oil field are hundreds (or more) times higher than those of the Dubendi area. Both magnetic and chemical studies of the studied soil samples have shown the presence of magnetic minerals: magnetite and hematite. The carrier of magnetization is magnetite on the Pirallahi oil field. The magnetic mineral is hematite for the Dubendi region. Thus, as a result of the petromagnetic studies and chemical analyses, the reason for the observed increase in the magnetic signal over the Pirallahi oil field was identified. In the studied soils of the Pirallahi oil field, the magnetite grains found belong to the fine-grained magnetic fraction. In the Dubendi area, which is not affected by hydrocarbon impact, finely dispersed hematite was found as a magnetization carrier.

Keywords: petro magnetism, soil magnetism, hydrocarbons, Pirallahi Oil Field

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