GEOTHERMAL DRILLING
Our compact drilling machine is set to work, and requires very little space to operate. In a domestic situation, we can often drill a borehole beneath a front drive, or in a garden. The borehole drilling exercise is usually completed within two days and it typically takes 1-3 holes per dwelling to provide the geothermal energy required.
With the use of modern, high capacity Rotary and DTH drilling equipment (with a Diameter of 115mm without casing and 140mm with casing) we can drill the holes for your specific geothermal energy requirements, safely and efficiently. The depths of boreholes are dependant on the geology of the locality (approximately up to 150 meters). Our investment in this latest drilling technology allows us to provide you with the cleanest and fastest drilling service.
Once the boreholes are drilled to the require depth the geothermal loops (single or double loops) are installed. The loops are made of polyethylene tubes with a diameter of 32mm or 40mm and with comprehension strength of 16 bars and are filled with water and a food safe antifreeze fluid. Then the borehole is grouted from the base upwards using a pump. The grout seals the drift and fills deposits therefore sealing the borehole and preventing contamination of the borehole. The thermal grout acts as a conductor between the earth’s heat and the fluid in the pipework.
Each pipe is then connected to horizontal underground pipes that carry fluid to and from the indoor exchange unit. Less piping is required in vertical systems as the temperature is more stable further below the earth’s surface.
Advantages:
- Geothermal Energy is inexhaustible, reliable, and always available
- Up to 75% of the energy is free
- Independent of fossil fuels
- Geothermal Energy can be used for heating and cooling
- No storage room for wood, oil, or gas
- Supplying without interruption
Disadvantages
- Thermal rehabilitation is required by poorly isolated houses
- High investment costs
Sztriberny Company video
