Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its...
-
Upload
antony-cameron -
Category
Documents
-
view
221 -
download
2
Transcript of Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its...
![Page 1: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/1.jpg)
GeologicalSurvey of Slovenia
Characteristics of geothermal
potential, current utilization and its
future (challenges) in Slovenia
Andrej Lapanje, Nina Rman, Dušan Rajver
RENEXPO, BudapestRENEXPO, Budapest, , 6 May 6 May 20201111
![Page 2: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/2.jpg)
GEOTHERMAL SYSTEMS IN SLOVENIA
GEOTHERMAL ENERGY POTENTIAL IN SLOVENIA
GEOTHERMAL ENERGY USE IN SLOVENIA
GEOTHERMAL ENERGY USE IN THE NE SLOVENIA
PRESENT AND FUTURE OF GEOTHERMAL UTILIZATION IN SLOVENIA
LECTURE CONTENT
![Page 3: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/3.jpg)
Existence is dependant on geology, while their utilization on economic conditions
Potential for geothermal heat pumps utilization is not estimated in a wider scale but utilization is applied
In Slovenia mostly low-temperature aquifers in warm spring, sedimentary basin and basement of sedimentary basin systems exists
Middle and high-temperature aquifers in sedimentary basins and the basement are only presumed to exist
GEOTHERMAL SYSTEMS IN SLOVENIA
![Page 4: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/4.jpg)
GEOTHERMAL SYSTEMS IN SLOVENIA
Various systems → different water properties → different use and problems
![Page 5: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/5.jpg)
SURFACE HEAT-FLOW DENSITY (mW/m2)
Thinner solid crust in the NE Slovenia – higher than normal heat flow (>65 mW/m2)
![Page 6: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/6.jpg)
EXPECTED TEMPERATURE AT 1 KM DEPTH
![Page 7: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/7.jpg)
EXPECTED TEMPERATURE AT 3 KM DEPTH
![Page 8: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/8.jpg)
Indications on possible high temperature reservoirs in NE Slovenia → yet to be proven
Geothermal energy – POTENTIAL FOR ELECTRICITY
![Page 9: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/9.jpg)
Geothermal energy – POTENTIAL FOR ELECTRICITY
Potential high temperature reservoirs:- aquifer depth, thickness and boundaries- water yield, wellhead and reservoir pressure and temperature - water chemistry- produced energy- reinjection
Mg-6- temperature 202°C at 3739 m- no hydraulic tests were performed
Possible deeper drilling in existent boreholes for evaluation of the geothermal potential
Nearest demonstration geothermal electricity plants: Altheim (1 MWe), Bad Blumau (0.2 MWe)
![Page 10: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/10.jpg)
Direct use
Thermal water is in usage at 30 locations Capacity: 66.8 MWt (in 2010) Energy: 774.6 TJ (in 2010)
> 4400 geothermal heat pumps (GHP)- open groundwater system (W)- closed system (H and V)- groundwater temperature 4-20°C
Capacity: 49.9 MWt (May 2010) Energy: 244 TJ (May 2010)
Total capacity in Slovenia (June 2010): 117 MWt Total energy use in Slovenia (June 2010): 1019 TJ
GEOTHERMAL UTILIZATION IN SLOVENIA
![Page 11: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/11.jpg)
LOCATIONS AND TYPES OF DIRECT USE IN SLOVENIA
![Page 12: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/12.jpg)
Lendava – De-icingDobrovnik – Orchids greenhouse
Murska Sobota – District heating
Moravske Toplice – Health resourt
Benedikt – Space heating
Pirniče - Meditation
EXAMPLES OF DIRECT USE IN SLOVENIA
![Page 13: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/13.jpg)
SHARE (%) OF GTE CAPACITY IN SLOVENIA BY FIELD (June 2010)
![Page 14: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/14.jpg)
GTE DIRECT USE INSTALLED CAPACITY (June 2010)
![Page 15: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/15.jpg)
GTE DIRECT USE ANNUAL ENERGY USE (June 2010)
![Page 16: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/16.jpg)
GEOTHERMAL ENERGY USE IN NE SLOVENIA
![Page 17: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/17.jpg)
IDENTIFIED UTILIZATION PROBLEMS IN NE SLOVENIA
Degassing of methane, CO2, H2S Scaling High organic matter content Changes in chemical composition Water-level and yields decrease, interference Sand-clogging Pump cavitation
![Page 18: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/18.jpg)
IDENTIFIED UTILIZATION PROBLEMS IN NE SLOVENIA
![Page 19: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/19.jpg)
PROJECT ADDRESSING THE GEOTHERMAL IN NE SLOVENIA
Conceptual models:• Geological
• Hydrogeochemical• Geothermal
•Hydrogeological
http://www.t-jam.eu
![Page 20: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/20.jpg)
PROJECT ADDRESSING THE GEOTHERMAL IN NE SLOVENIA
http://www.t-jam.euhttp://akvamarin.geo-zs.si/t-jam_boreholes/
![Page 21: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/21.jpg)
PROJECT ADDRESSING THE GEOTHERMAL IN NE SLOVENIA
http://transenergy-eu.geologie.ac.at/ http://akvamarin.geo-zs.si/users/
![Page 22: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/22.jpg)
Geothermal energy utilization rises, especially GHP
Strong interest in geothermal energy in the NE Slovenia Thermal water production rises with no reinjection applied Cascade use, operational and waste water monitoring are
mostly poorly applied Utilization problems are becoming more evident
Geothermal electricity is questionable in Slovenia Investors wanted for inactive wells exploitation (Janežovci,
Mislinjska Dobrava, Turnišče, Dobrovnik, Izola…) Investors wanted for drilling new wells (Goriška Brda,
Zasavje, Besnica, Petišovci…)
No national evidence on installed GHP No national monitoring system for deep geothermal
systems Only rare concessions granted, no control or deadlines
PRESENT AND FUTURE OF GEOTHERMAL IN SLOVENIA
![Page 23: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/23.jpg)
Geologists & Drillers :
- current exploitation:- designing unified operational and national monitoring for sustainable production of thermal water
- dealing with aquifer changes: pressure drops, temperature and chemistry changes, interference, aquifer response to reinjection
- developing, modeling and testing doublet systems: reinjection into sand and loose sandstone reservoirs
- new research:- developing new low and high temperature geothermal sites
- exploring indicated potential high temperature deep geothermal aquifers
- exploring EGS potential in Slovenia
- identifying potential areas for GHP’s installation, elaborating expert basis, and estimating influence of its increasing installation on hydrogeological conditions in shallow aquifers
Future challenges
![Page 24: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/24.jpg)
Future challenges
Users & Investors:- applying technological optimization at operating geothermal sites: higher efficiency of heat extraction, cascade use, prevention of scaling and degassing
- installing hybrid systems and cogeneration
- installing GHP’s in larger infrastructure objects according to European Energy Performance of Buildings Directive (EPBD)
- implementing operational monitoring on active wells
- developing new geothermal sites
Authorities:- enhancing national-wide geothermal and structural research by national and regional plans (financing & conducting research)
- enhancing GHP’s and other direct use geothermal installations by subsidies and expert support
- regulating new installations of water-water GHP’s
- issuing research and water permits and control their implementation
- designing, maintaining and interpreting national monitoring
- interpreting and controlling operational monitoring
![Page 25: Geological Survey of Slovenia Characteristics of geothermal potential, current utilization and its future (challenges) in Slovenia Andrej Lapanje, Nina.](https://reader036.fdocuments.net/reader036/viewer/2022062322/56649e115503460f94afc7c4/html5/thumbnails/25.jpg)
AFP-1/95 photo: Geoprojekt
THANK YOU!