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oa Geoelectrical Criteria for the Prediction of Hydrocarbon Prediction in the Depth of the Peri-Dobrudzha Depression
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 17th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, Nov 2023, Volume 2023, p.1 - 5
Abstract
According to geoelectrical criteria (maximum power of the sedimentary stratum; subvertical rise of electrical conductivity anomalies from crust-mantle depths or columns on the full thickness of the earth’s crust; subvertical boundaries of inhomogeneities (contacts of different resistance) in the consolidated earth’s crust and upper mantle; the presence of a highly conductive asthenospheric layer) a significant number of local areas were identified, which can be considered promising for the manifestation of hydrocarbons. Most of them spatially coincided with the already well-known oil and gas fields of East Saratsky and Zhovtoyarsk, as well as explored oil and gas prospective areas: Izmailska, Kislytska, Primorska, Shirokivska and those corresponding to areas of special permits for industrial and exploration works. However, new areas have been identified that meet most of the geoelectrical criteria, but for which there is no publicly available information about their oil and gas prospects, they clearly require additional detailed geological and geophysical research. It is shown that the zones of high electrical conductivity, which could have arisen due to the presence of deep fluids, should be considered as deep fluids of hydrocarbon generation and the paths of their migration to the upper parts of the earth’s crust.
