Page 251 - Geothermal Energy Systems Exploration, Development, and Utilization

4.10 Case Studies 227

Rostock
Hamburg
Bremen
Horstberg
Berlin
Hannover

Leipzig
Köln Dresden

Figure 4.21 Location of the test site ‘‘Horstberg’’ in the Northern German Basin.

0 m 0
Quartär
32” / 64,3 m
Tertiär
13 3/8”
1000 1164,5 m 1000
Kalkarenit

Ober-
kreide
Unter 3 ½” Tubing
kreide
Depth (m)
2000 Malm 2000
Dogger
Lias
9 5/8”
Keuper 2847,5 m
3000 Muschel- Perforations: 3000
3037,5 - 3041,5 m
Kalk
Oberer bunt
sandstein
Packer
Mittl. bunt 3770 m 3664 - 3668 m
sandstein 3787 - 3791 m
3920,5 - 3926,6 m
4000 Unterer 4000
buntsand-
stein Brifge plug 7”
Zechstein
4120 m 4391 m
Rot- 0 50 100 150 200
liegend 5” Temperature (°C)
4918 m (ET)
5000
Figure 4.22 Stratigraphy, schematic of well completion and
equilibrium temperature profile of the Horstberg well.