A thermal tomography technology has been developed, which is recommended to be included in the prospecting and exploration work complex in hydrocarbon fields. The practical value of the thermotomographic technique is to find temperature boundaries that control a particular process of generating or transforming a substance. It has been established that the oil and gas fields localization is controlled by the temperature rise in the sedimentary layer, which are associated with "thermal domes". Heat flow refraction occurs at the boundaries of the domes with country rocks due to the contrast in thermal conductivity of evaporites and terrigenous rocks between the domal zones. This is the main cause of heat flow variation in the lateral and vertical directions in the sedimentary basins. Close correlation between zones of elevated temperature in the sedimentary rocks and petroleum occurrences is confirmed by the results of 2D and 3D geothermal field modeling. 3D temperature models distribution in the Western Arctic area, in the Precaspian, Pripyat and North German depressions are presented. The previously noted relations of oil and gas fields to the deep faults in the studied basins create prerequisites for consideration of the geothermal field as a genetic factor controlling the tectonic features and petroleum resources of the sedimentary and salt-dome basins.

Keywords: temperature, heat flow, sedimentary basin, salt-dome, modeling

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