Speaker
Description
Sustainable management of geothermal resources includes long-term geochemical monitoring. Chemical changes in the geothermal fluids often reveal potential issues with the reservoir before operational problems, e.g. scaling, or physical effects, e.g. lowering of the temperature or pressure, are observed. The Hjalteyri low temperature geothermal system on the western shore of Eyjafjörður in northern Iceland is one such system. While this system’s discovery and development is a boon for the region’s district heating system, operational problems will occur if its utilization continues with no adjustments. As a result of long-term geochemical sampling, changes in water chemistry were observed before the occurrence of potential issues, thereby allowing time and research to make necessary modifications for its continued usage.
