A multidisciplinary study of a geothermal reservoir below Thisted, Denmark

Morten Leth Hjuler, Henrik V, Carsten Møller Nielsen, Peter Frykman, Lars Kristensen, Anders Anders Mathiesen, Torben Bidstrup, Lars Henrik Nielsen
1969 Geological Survey of Denmark and Greenland Bulletin  
The first geothermal plant in Denmark was established in 1984 near the town of Thisted (Fig. 1). For nearly 30 years the plant has successfully produced c. 43°C hot water (surface temperature) from a highly permeable sandstone reservoir in the Late Triassic to Early Jurassic Gassum Formation and used the heat from the geothermal water for district heating. The 45°C hot water (formation temperature) is pumped up from a vertical production well, Thisted-2, from a depth of c. 1250 m and the cooled
more » ... water (c. 12°C) is re-injected into the formation through a vertical injection well, Thisted-3, located 1.5 km east of the production well.
doi:10.34194/geusb.v33.4659 fatcat:esbyuo2zrndgbossprkekv2obq