Transcript GEUS slides presentation

GEUS
The Geological Survey
of Denmark and Greenland
Contact Person:
Anders Mathiesen, Senior geologist [email protected]
GEUS is joining WP2, WP4 and WP5
GEUS – Location
GEUS – Organisation
GEUS – Web-site
GEUS – Web-site
GEUS – The National Survey
In 1995 the Geological Survey of Denmark (1888) was
merged with the Geological Survey of Greenland (1946)
into GEUS.
GEUS is today responsible of all geological matters within the
Kingdom of Denmark, including Greenland and the Faeroe Islands...
.. and carries out geological related basic and advanced research of
relevance to the society, both in form of advisory and consulting
activities.
GEUS is a consultancy institution for Danish and Greenland
authorities in questions concerning important geological conditions..
The National Survey
GEUS is a national research and advisory institute under the Danish
Ministry for the Environment providing R&D and advisory services for
government agencies, local authorities and private enterprises in
Denmark as well as internationally
Staff ~ 280 persons. - Annual turnover 40 Million US$
Covering: water, energy, mineral resources & environment
International operations e.g. ::
Chalk research projects:
• Tilted fluid contacts
• North Sea (N, UK, GER, NL)
• Rock physics
• Greece
• Full field reservoir modelling
• Tanzania
• Vietnam
Clastic research projects:
• CO2 storage
• Chile
• Water aquifer
• Canada
• Geothermal reservoirs
• Baltic countries
National Data Archives
The National data archives
.. is responsible for building and maintaining the records of past
activities. These data bank activities comprise very extensive
printed and electronic files covering nearly all aspects of the
subsoil.
A separate warehouse facility houses hundreds of kilometers of
cores samples and many thousand representative sediment and
rock samples.
GIS technologies are extensively applied
GEUS – Key Scientific Areas
Key scientific areas include:
• Ground water and surface water resources
• Petroleum resources
• Subsurface energy storage/disposal
• Raw materials and minerals resources
• Geological mapping of Denmark, Greenland and the
Faeroe Islands
• Marine geology
• Environmental impacts assessment
• Physical & electronic data storage
• Use of GIS technologies are extensively applied
GEUS – Geothermal Activities
GEUS has since the 80’ties played an important and an increasing
role within exploration of geothermal resources in the Danish
subsurface and has since 1998 assessed the possibility of expanding
geothermal energy in Denmark.
The subterranean structure of Denmark contains geological
structures which contain hot water. The subsurface temperatures in
Denmark to does not allow direct production of electricity.
However, hot water can be utilised for district heating production,
either directly or via absorption heat pumps or electric heat pumps.
The first plant in Denmark was established in connection with the
district heating supply in Thisted in 1984.
Geothermal Activities
GEUS has for many years provided advisory, research and
consultancy services within the field of geothermal activities.
GEUS has particularly been involved in areas as structural
development, compilation and formulation of geological
models in an attempt to predict where to find reservoirs suitable
for geothermal exploration.
This ongoing work has further contributed to the geological
knowledge of production characteristics and the stability of the
hot water recovery, i.e. risking.
Geothermal Energy – today
Geothermal Energy – today
• The first national study on geothermal resources was initialised in 1981.
• Geothermal resources is mainly related to the Mesozoic succession of the
Danish Basin and Fennoscandian Border Zone.
• This succession has been the target for exploration activities since 1935 and
is known from approx. 60 deep wells drilled for hydrocarbons, geothermal
energy or gas storage.
• Denmark has one geothermal plant, located in Thisted in the north-western
part of Denmark. It produces heat from 44°C, 15% saline geothermal water
pumped from the Upper Triassic Gassum sandstone aqiuifer at 1,2 km.
• Experience from the Thisted plant have shown that heat and power plants
integrated with geothermal plants with heat pumps (primary absorption heat
pumps) can be used to produce heat and power with a high efficiency.
Thus, although Denmark has moderate temperature gradients (0.03°C per
meter), many areas and stratigraphic levels hold warm sandstone aquifers,
which can be used for district heating.
New Geothermal Projects
In 2000, a confidential study of the geothermal potential in the
Copenhagen-Malmö region was initiated on behalf of DONG
A/S.
The geothermal study was successfully completed when 70
degrees hot water was found in a sandstone layer more than
2600 metre under Copenhagen in the MAH-1 well. Prior to the
successful drilling, GEUS had carried out assessments of six
possible geothermal drilling sites and prepared the geological
foundation for the drilling, using DONG A/S as the operator.
The ongoing research provides the knowledge base for the
advisory capability, and GEUS is frequently called upon to
supply geological, geophysical and engineering opinions on
licence bids, drilling plans and field development plans put
forward by companies operating on Danish territory.
New Geothermal Projects
Geologists and geophysics from GEUS participated in the work both
during and after the drilling of this new geothermal well and GEUS
has since been 2000 been working on improving our knowledge about
the geothermal potential in Copenhagen-Mølmö area.
Based on the positive results a new demonstration plant is expected
to be established in the spring 2006 and is expected to generate the
heat needed by 4000 households or 1% of the total heat demand in
Copenhagen.
Furthermore, as a direct result of these efforts, geothermal exploration
has now been resumed in the rest of the onshore Danish area, and a
number of prospective areas will hopefully in the near future be
identified and further assessed by the GEUS.
GEUS and ENGINE
At the moment Denmark has operating experience of geothermal
energy based only on one small operating geothermal plant at
Thisted
GEUS hope, - based on the positive results from the new
geothermal well near Copenhagen and the expected following
demonstration plant -, that the interest for implementation and
utilisation of geothermal energy in Denmark with increase. This has
already resulted in renewed geothermal interest and exploration in
the other areas of Denmark.
Through ENGINE GEUS hope to learn, - from other more
experienced partners, - how we further promote and use geothermal
energy in Denmark.