MODEL OF THE FOLDING PROCESS AND FORMATION OF BREACHES IN THE BORISLAV-POKUTSKA ZONE OF THE PRECARPATHIAN DEFLECTION
The relevance of research is due to a detailed study of the features of the geological structure of the Borislav-Pokutska zone of the Precarpathian deflection and, in particular, of local structural forms, as possible traps for oil and gas, for reliable forecasting of the oil and gas potential of the subsoil. The Borislav-Pokutska zone of the Precarpathian deflection refers to one of the oldest oil and gas producing regions in Ukraine, the hydrocarbon potential of which is not exhausted. The complex block structure of the structures in the Borislav-Pokutska zone requires the development of specific methods for conducting prospecting for oil and gas. In this regard, it is important to determine the nature of the distribution of local structures and the characteristics of their morphological forms in the study area. Current issue is also the issue of tracing tectonic disturbances and determining their screening ability, which determines the possibility of the existence of hydrocarbon deposits. Solving these issues will significantly improve the geological efficiency of exploration and prospecting in the areas of the Borislav-Pokutska zone. At the present stage of the development of Earth sciences, computer processing of geological data is widely used. Therefore, along with the traditional approach to describing structures as possible traps for oil and gas, it is necessary to analyze their quantitative (numerical) parameters, which allows us to more reasonably confirm the established patterns. The operation of large quantities of quantitative indicators of local structures and the dependencies established between them makes it possible to model the processes that formed them, and to determine the patterns of their distribution. The most important scientific and practical results include: the developed classification of local structures in the Borislav-Pokutska zone by quantitative indicators, which contains four groups of structures, depending on the morphological features of their structure; the investigated conditions for the formation of morphological varieties of local structures and the character of the distribution of tectonic deformations in them. Based on the results of geological and mathematical modeling by a set of quantitative indicators installed, that local structures with certain morphological features, which are reflected in varying degrees by the disruption of their shape, are formed by tectonic movements of different magnitude and direction and are described by their numerical parameters inherent only in them. The results of studies of the distribution of tectonic stresses and deformations, which can be estimated by quantitative indicators, will contribute to a more reliable forecasting of the oil and gas potential of the subsoil, which will significantly improve the geological performance of oil and gas prospecting in the areas of the Borislav-Pokutska zone of the Precarpathian deflection.
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