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Geothermal Resources in Norway
Kirsti Midttømme1, Inga Berre1,2, Odleiv Olesen3
1 Christian Michelsen Research, 2 University of Bergen, 3Geological Survey of Norway
EGEC GEOELEC Workshop
January 24th, 2012 - Utrecht
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Fennoscandian Shield
Old massive rock
Low porosity
Low permeabilitiy
No sedimentary
basin onshore
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Jan Mayen – Volcanic Island
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Eruption of
Mt Beerenburg in 1970
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Bouvet Island – Volcanic Antarctic Island
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(Uninhabited)
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Heat flow map
Atlas of Geothermal Resources in Europe, European Comission , 2002
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Heat flow map 1970-2000
Heat-flow — heat-generation
studies in Norway
Tectonophysics, Volume 23, Issues
1–2, July 1974, Pages 31-48
Chandler A. Swanberg, M.D.
Chessman, Gene Simmons, S.B.
Smithson, G. Grønlie, K.S. Heier
Bottom lake measurements
Shallow borehole masurements
<200m
Not corrected for paleoclimate or
topography
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New heat flow sites (500-1000 m deep wells)
Data acquired
in the Kontiki,
HeatBar
and Coop
projects
2005
2004
2005
2004
Older than
2004
2008
Bjørnevatn
Båtsfjord
Vuoddašjav’ri
Leknes
Drag
Sulitjelma
Bleikvassli
Aure
Løkken
Hjerkinn
Lærdal
Stavanger
Hamar Hurdal
Berger Arnestad
Frederikstad
2011
Bergen
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Magnetic Isostatic residual
Gravity Potential field
data
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Varmestrøm
1970-1980
Varmestrøm fra
Kontikiprosjektet 2005-2007
(Pascal o.a. 2007)
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Deep underground
temperatures
derived from heat flow data
( Pascal o.a. 2010)
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Estimated Temperature at 5 km depth
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Heat flow map
Scandinavia
(2011)
Heat-flow measurements in Late Palaeoproterozoic
to Permian geological provinces in south and central
Norway and a new heat-flow map of Fennoscandia
and the Norwegian–Greenland Sea
Tectonophysics, Vol 473, 3–4, 2009, Pages 341-361
T.Slagstad, N. Balling, H. Elvebakk, K. Midttømme,
O. Olesen, L. Olsen, C. Pascal
Etter Slagstad o.a. (2009) og Pascal o.a. (2010)
Conclusions
1. 25% increase of heat flow values after climatic
corrections (36-77 mW/m2)
2. Observed thermal gradients between 14 and
27 ºC/km
3. Extrapolated temperatures to 5 km depth lie
between 75 and 140 ºC
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What’s going on in Norway
CGER – Norwegian Center for Geothermal Energy Research
R& D projects, drilling technology
Electro Pulse Drilling
Rotational Hammar drilling (Resonator)
Research project, modelling and simulation of geothermal systems -
flow and heat transport in fractured porous media (University of Bergen,
2009-2013)
Research project, drilling technology (Sintef, 2012-2016)
Deep shallow geothermal installations to 500 m depths.
Energy 21- A collective R&D strategy for the energy sector in Norway
Revised in 2011
Geothermal is not «the hottest» topic
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System modeling – shallow geothermal
system
