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The Gross Schonebeck site is located approximately 50 km north of Berlin, Germany, with a failed doublet hydrothermal solution.
One of the wells will be repurposed with a new geothermal co-axial closed loop solution with a continuous vacuumized dual pipe completion.
The goal of this well test is to show how efficient the vacuumized dual pipe is in both maintaining the continuous vacuum and have an insolation effect ensuring only a few percent heat loss of the heated water returning to the surface. Experience from the work-over and repurposing of the suspended hydrothermal well will also be reviewed.