French company Vallourec is delivering almost 1500 tons of seamless OCTG1 tubes to Geothermie Holzkirchen for a geothermal power project in Bavaria, Germany.
Vallourec said most of the tubes for the project, which is planned to start operating in 2017, were produced at its mills in Mülheim and Düsseldorf.
The project will involve the drilling of two wells to a depth of nearly 5000 metres, the first of which is now under way.
This first well will bring the geothermal water to the surface at a temperature of 140°C.
A steam generator and heat exchanger will transform the hot water to produce electricity and heat.
Once cooled, the water will loop back down into the calcareous aquifer, descending through the second well.
The OCTG will be used to consolidate the wells; gas-tight and designed to resist temperatures over 180°C and external pressures up to 743 bars.
Image: Geothermie Holzkirchen
