Geological Survey of Finland Publishes the First Map of Geological Hydrogen Measurement Results in Finland
The map dataset on measured maximum geological hydrogen concentrations and the previously published dataset on rock types with hydrogen potential are the first of their kind in Finland.
The new map dataset depicts the measured maximum concentrations of geological hydrogen in Finland. The results show the percentage of geological hydrogen in gases from boreholes, either dissolved in groundwater or as a free gas phase.
The map datasets provide basic information on the occurrence of geological hydrogen in Finland. Finland is known to have rock types that can be associated for geological hydrogen production. However, more research is needed as there is still a long way to go before geological hydrogen can be exploited.
Geological and geochemical data are essential for determining both the presence of geological hydrogen and the technical and economic feasibility of its production. The research is also needed to determine whether the production of geological hydrogen can be increased artificially.
“GTK´s research has not been carried out with the intention of searching for geological hydrogen. Therefore, the locations of the survey points have not been planned with geological hydrogen exploration in mind. Measurements were taken from existing boreholes made for other research needs. We need more basic geological and geochemical research to understand the factors that influence the occurrence of geological hydrogen. We can then use this research data to make targeted measurements,” says Teppo Arola, Chief Expert at the Geological Survey of Finland GTK.
Geological hydrogen refers to the hydrogen that is drawn out of the earth’s crust as a result of natural processes. Further research is being carried out into the processes that produce geological hydrogen. Hydrogen is, however, known to be formed mainly non-organically, but the influence of microbes, for example, on hydrogen production (i.e., organic hydrogen production) has not yet been thoroughly investigated.
Further information
Chief Expert Teppo Arola
Geological Survey of Finland GTK
teppo.arola@gtk.fi
tel. +358 29 503 2207
Senior Specialist Markku Hagström
Geological Survey of Finland GTK
markku.hagstrom@gtk.fi
Tel. + 358 29 503 2910
Geological hydrogen measurement results in Finland
Finnish rock types with hydrogen potential
