Origin of geothermal fluids of Permo-Carboniferous rocks in the NE German basin (NE Germany)

Wolfgramm, M, Seibt, A, Hurter, S and Zimmermann, G (2003). Origin of geothermal fluids of Permo-Carboniferous rocks in the NE German basin (NE Germany). In: GEOFLUIDS IV Meeting, Utrecht, Netherlands, (127-131). 12-16 May 2003. doi:10.1016/S0375-6742(03)00133-X


Author Wolfgramm, M
Seibt, A
Hurter, S
Zimmermann, G
Title of paper Origin of geothermal fluids of Permo-Carboniferous rocks in the NE German basin (NE Germany)
Conference name GEOFLUIDS IV Meeting
Conference location Utrecht, Netherlands
Conference dates 12-16 May 2003
Journal name Journal of Geochemical Exploration   Check publisher's open access policy
Publication Year 2003
Sub-type Fully published paper
DOI 10.1016/S0375-6742(03)00133-X
Open Access Status Not yet assessed
ISSN 0375-6742
Volume 78-79
Start page 127
End page 131
Total pages 5
Language eng
Abstract/Summary A multidisciplinary approach to make generation of geothermal electricity possible in the NE German basin (NEGB) was initiated in 2000. To attain this goal, formation fluids from the 4-km-deep Rotliegend rocks (a known gas reservoir) of the NEGB need to be extracted and their geochemistry determined. An in situ laboratory was established by opening and deepening the former gas well GrSbk 3/90. Hydraulic tests and stimulation experiments focussed on the aeolian sandstones. In situ samples of the 150 °C deep fluids contain high amounts of dissolved solids (salinity: 265 g/1). The most important inflows of geothermal water were detected in the Permo-Carboniferous volcanic rocks and not, as anticipated, from overlying sandstones. Furthermore, the geochemical investigations of the fluid samples indicate that they originated in the andesitic volcanic rocks.
Keyword Formation fluids
Geothermal reservoirs
Rotliegend
Stimulation experiments
Q-Index Code C1
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Earth and Environmental Sciences
 
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