ANALYSIS OF HYDROGEOLOGICAL AND GEOTHERMIC CHARACTERISTICS OF THE GEOTHERMAL OBJECTS OF UKRAINE

• Дата: 2020
• Автор: Barylo, А.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2020
• Теми: geothermal object; electronic database; geothermal characteristics; hydrogeological characteristics; distribution diagram.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/246
• Назва журналу: Vidnovluvana energetika

On the basis of the materials of the State Geological Information Fund of Ukraine, a database of geothermal objects was created, which included 655 objects, covering 12 administrative regions of Ukraine and about 54% of the existing hydrocarbons. The main geothermal and hydrogeological characteristics of the database objects are: depth of productive horizon, lithology and composition of rocks, geological age of rocks, thickness of productive horizon, aquifer temperature and reservoir pressure, well flow, water level drop in aquifer during testing, mineralization, gas composition and natural gas content in groundwater. The analysis of hydrogeological and geothermal characteristics of geothermal objects was performed on the basis of the structural-hydrogeological principle. That is, all objects were considered in relation to large hydrogeological structures with unified boundaries and conditions of groundwater deposits formation, such as: Transcarpathian Bend, Procarpathian Bend, Dneprovsko-Donetsk artesian basin and Black Sea artesian basin. For each structure, diagrams of the distribution of formation temperatures, depths of deposition and mineralization of groundwater in geothermal objects of the database are constructed. The analysis showed that the conditions of the geothermal deposits generation primarily depend on the thermal subsoil background. But very significant influence have the crystalline basement depth, the location of areas of supply and unloading of geothermal horizons, the depth of modern water exchange, lithologic composition of water containing rocks. The database of geothermal objects of Ukraine can be used during the selection of priority geothermal projects for the development, as well as for strategic planning of the geothermal industry as a whole. Ref. 10, fig. 14.