Ropo-gazonośność południowego Bałtyku

Abstract

OIL- AND GAS-BEARING IN THE SOUTHERN BALTIC Summary The search for oil and gas in the Baltic which is typical intercontinental sea were carried out with the use of geological and geophysical methods for several years. The studies were mainly concentrated in the southern Baltic as the northern parts of that sea are considered as non-perspective from the point of view of occurrence of large accumulations of oil and gas. The studies and search in the southern Baltic are carried out taking into account the results obtained in coastal regions and on islands. The discovery of several Cambrian oil deposits in the vicinities of Liepaja, Kłajpeda and Kaliningrad in the USSR and in the Żarnowiec area of Poland, Carboniferous and Lower Permian gas deposits and Upper Permian oil deposits in western Pomerania in Poland, Upper Permian oil deposits in coastal parts of the German Democratic Republic and Ordovician oil deposits in southern parts of the Gotland Island were of basic importance here. The studies showed that the major part of the central and the whole northern Baltic belong to the Precambrian platform and only markedly smaller south-western part of the Baltic is situated within the boundaries of so-called Paleozoic platform of the central and western Europe. Boundary zone of the two platforms is still insufficiently known. The analysis of geological setting of the oil and gas deposits from the Baltic and surrounding land areas showed that the perspective oil-bearing formations in the southern Baltic Precambrian platform include the Cambrian and in the area of the Paleozoic platform it is possible to expect the occurrence of gas accumulations in the Permian and Carboniferous and the oil accumulations in the Upper Permian. The search and exploitation techniques applied should provide complete preservation of the environment of the sea and coastal areas.