TWO-STAGE EXTRACTION OF GEOTHERMAL RESOURCES IN HYDROGEOLOGICAL CONDITIONS OF UKRAINE

• Дата: 2024
• Автори: Morozov, Yu., Bacherikov, О.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2024
• Теми: geothermal circulation system; production and injection wells; waste coolant; energy consumption; two-stage production; absorption horizon; coolant flow rate; thermal productivity; temperature regime; geothermal field.; геотермальна циркуляційна система; видобувні й нагнітальні свердловини; відпрацьований теп-лоносій; енерговитрати; двостадійне видобування; поглинальний горизонт; дебіт теплоносія; теплова продуктивність; температурний режим; геотермальне родовище.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/434
• Назва журналу: Vidnovluvana energetika

An analysis of energy consumption was carried out for the return of processed heat transfer to the heat exchanger using an additional geothermal circulation system (GCS). To estimate energy consumption, factual data on the rotation of adjacent formation waters in the oil industry are used. It has been shown that dividing the heat transfer fluid into two stages with the initial stage of pumping the recovered heat transfer into the sedimentary clay horizon significantly reduces energy consumption during the operation of the GCS. At the second stage of GCS operation, when the spent coolant is returned to the productive formation, the thermal power of the system depends on the distance between the injection and production wells. To solve this problem, a relationship has been established between the thermal performance of the GCS and the duration of its operation on the distance and time of coolant filtration between injection and production wells. For a given coolant flow rate, thermal and filtration characteristics of the productive formation, and the duration of operation of the GCS in a certain temperature regime, an equation was obtained that allows one to calculate the minimum permissible distance between wells of a geothermal field.