Exploitation of geothermal waters

BALOTEŞTI

In 2014, TRANSGEX won the execution of the project "Utilization of geothermal water resources for the heating of the Prof. Dr. Agrippa Ionescu Emergency Clinical Hospital", located in the town of Baloteşti, Baloteşti commune, Ilfov county. The project is ongoing until autumn 2016."Prof. Dr. Agrippa Ionescu Emergency Clinical Hospital", located in the town of Baloteşti, Baloteşti commune, Ilfov county. The project is ongoing until autumn 2016.

Based on the existing data from the wells executed in the Baloteşti area and according to the hydrogeological parameters measured at prospecting well 2684 executed in the Baloteşti perimeter (which will become an exploitation well), the following hydrogeological results will be obtained:

• flow rate: Q = 90 m3/h

• temperature at the probe mouth: T = 80°C

• dynamic level: Nd = 85 ÷ 90 m

  

By exploiting the well proposed to be used, a thermal energy input will be obtained according to the following table:

Taking into account a system operation of 4,620 h/year, the production capacities of the investment can be calculated. The production capacity of the investment from renewable energy sources, respectively from the exploitation and use of geothermal water will be 13,540.1 MW/year. If this capacity is fully used, it will lead to a decrease in CO2 emissions by 2,611 t/year.

IOŞIA

Ioşia is one of the most important neighborhoods in Oradea, having recently experienced the highest level of development.Ioşia is one of the most important neighborhoods in Oradea, having recently experienced the highest level of development.
It is divided into three areas: Ioşia (between Peţa stream, Ovid Densuşianu street, Oneştilor street and Lăpuşului street), Ioşia-Nord (between Lăpuşului street, Crişul Repede river, Ovid Densuşianu street and Oneştilor street) and Ioşia-Sud (between Peţa stream , Calea Aradului and Ovid Densușianu Street and Calea Sântandrei).

In 2012, TRANSGEX built the first power plant in Romania that used geothermal water as the primary source of energy. The pilot station is located in Oradea, Ioşia-Nord district, near borehole 4767.
The installed power of the pilot station is 50 kW, and in 2013 TRANSGEX managed to produce and supply it to the national energy system. Electricity production that year represented 400 MWh.
In 2015, well 4767 produced 1.05% (8,800 m3) of the volumetric production of the Oradea perimeter, as well as 27,105 Gcal (67% of the energy equivalent of the Oradea perimeter).

UNIVERSITATEA DIN ORADEA

TRANSGEX is a partner with the Oradea City Hall in the project "Utilization of geothermal energy, for the production of thermal heating agent for the consumers of the thermal point PT902 with the re-injection of thermally used geothermal water into the deposit", given the fact that TRANSGEX is the holder of the exploitation License for the Oradea deposit.TRANSGEX is a partner with the Oradea City Hall in the project "Utilization of geothermal energy, for the production of thermal heating agent for the consumers of the thermal point PT902 with the re-injection of thermally used geothermal water into the deposit", given the fact that TRANSGEX is the holder of the exploitation License for the Oradea deposit.

The project consists in the exploitation of well 4796 Universitate Oradea with an additional flow of 12 l/s which will be transported to thermal point 902, where thermal energy will be prepared and distributed to consumers connected to the thermal point. The amount of thermal energy delivered for heating will be 2,000 Gcal/year. In order to maintain the reservoir pressure, an injection well was dug at a depth of 2,900 m, into which the thermally spent geothermal water extracted from the production well 4796 will be injected. The project is to be completed in the fall of 2016.

In order to exploit the geothermal water, the production of well 4796 represents 43% of the volume extracted in the Oradea perimeter. Well 4796 is a well equipped with a vertical shaft pump, producing a maximum flow rate of 45 l/s in pumping at a geothermal water temperature of 86 °C. The reductions in CO2 emissions will thus amount to 2,417.47 t/year.

SĂCUENI

From the point of view of the use of geothermal water, the city of Săcueni is on the 3rd place in terms of weight in Bihor county, located after the municipalities of Oradea and Beiuş.From the point of view of the use of geothermal water, the city of Săcueni is on the 3rd place in terms of weight in Bihor county, located after the municipalities of Oradea and Beiuş.

The exploitation license for the geothermal waters in the Săcueni perimeter is held by our company. Thus, in the perimeter of Săcueni, 6 production wells are dug with depths between 1,500 - 1,600 m, three of which are in operation and have a potential of 80 °C.

BEIUŞ

The municipality of Beiuş is the only city in the country where the supply of centrally produced thermal energy is done only on the basis of geothermal water, this fact giving it the name Green City.The municipality of Beiuş is the only city in the country where the supply of centrally produced thermal energy is done only on the basis of geothermal water, this fact giving it the name Green City.

In Beiuş, two wells aim to exploit geothermal waters (3001H, 3003H), while a third one (3004H) serves the re-injection of thermal wastewater underground.The extraction of geothermal waters is carried out with the help of heat-resistant submersible pumps at depths of 2,500 - 3,000 m, in cracked limestone rocks, dolomites. 17,000 m of pipes are intended for the transportation of geothermal water and thermal waste water. The extracted flow rates are 42 l/s at probe 3001H, respectively 35 l/s at probe 3003H. The temperatures recorded at the operating ends are 84 °C at probe 3001H, respectively 70 °C at probe 3003H.

The average annual production of thermal energy is approx. 17,000 Gcal. The geothermal water extracted with pumps is distributed in 4 thermal plants with heat exchangers and in 20 modules, representing automated mobile thermal points.The average annual production of thermal energy is approx. 17,000 Gcal.

The geothermal water extracted with pumps is distributed in 4 thermal plants with heat exchangers and in 20 modules, representing automated mobile thermal points.The centralized system distributes thermal agent for heating and hot water for consumption for 103 blocks of flats, 3 high schools, general schools, kindergartens, churches and public institutions.