Geothermal energy sources identification after joint interpretation of geo-data from the Baia Mare area (Romania)

Project summary

Project acronym
Geysir-BaiaMare
Main Thematic area
A - Energy
A.4 - Energy sources – diversification/balance;
energy
Secondary Thematic area
B - Environment
B.4 - Resources, technologies and tools for circular economy;
Tertiary Thematic area
Key words
renewable energies
energy efficiency
environmental technology
Search
Principal investigator
Ionelia Panea
Megaphone
Project promoter
UNIVERSITATEA BUCURESTI
Euro
Funding
RO Research Programme - EEA Grants
Users
Partners
University of Oslo
Pin 01
Location
Bucharest
Calendar
Period of implementation
2020-09-01 to 2024-04-30

Project in a nutshell

In the project, the researchers first performed a regional assessment of the geothermal potential using existent geological, hydrogeological, geochemical and geothermal data. They recorded active-source seismic data using explosive sources in order to identify and image possible reservoirs of thermal water into subsurface. The measurements were performed to south of the Baia Mare town along two lines with north-south and east-west orientations. Their total length was 33 km. The generation and recording of seismic waves was done by the University of Bucharest in collaboration with PROSPECTIUNI S.A. (Romania).


The results provided the first information in the area about the subsurface geological structure and the presence of a system of deep faults considered paths for geothermal fluid transportation. Ambient seismic noise and magnetotelluric measurements were performed to identify water-bearing structures into subsurface. The magnetotelluric measurements were performed using equipment from the Lulea University of Technology (Sweden) in points spread over a larger area, between Sighetul Marmatiei and Targu Lapus, to north and to south of the Baia mare town. 

The researchers from the University of Oslo (Norway) and the Lulea University of Technology (Sweden) processed the data. The obtained resistivity sections imaged water-bearing layers and bodies of magmatic rocks.

Scientific results


publication
Publications
3
conference
Conferences
9



The main project results are classified in two categories: scientific results and awareness/networking. The scientific results consist of geophysical and geological data, the analysis and interpretation of this data together with other geodata, and numerical models and algorithms developed to analyse and image the data. Private sector was involved in acquisition of this data, and the collaboration between the academia and private sector led to improvement in some of the workflows and efficiency in their respective institutes. The data analysis and interpretation is published in international journals accessible to geologists and engineers.  The pre-print of the published articles will be available free of charge on dedicated servers like arxiv. The National Agency for Mineral Resources, Romania, the main beneficiary of these results, has the mandate to use this data and raise awareness about its availability, hence avoiding duplication of data collection. 

The results will contribute to furthering the exploration with possibility of exploitation of geothermal energy, which is part of the national energy transition efforts.

Socio-economic impact

The National Agency for Mineral Resources, Romania, is the main beneficiary of the scientific results of the project. The agency will use the results of the researchers to select the open areas for geothermal water exploitation in the benefit of the local communities. The obtained seismic and resistivity sections provided us information about the geological structure and tectonic evolution of the sedimentary deposits of Neogene-Quaternary age, the fluid content and the location of intrusive bodies into the ground. 

Two locations for geothermal wells were proposed after the integrated analysis of the geological, hydrogeological, geophysical and geothermal data. The local community and the local public administration authorities will have the opportunity to use a cheap source for heating houses, official buildings or buildings with touristic activities. Thermal waters can also be used for greenhouse heating and spas.

Research in the spotlight

When using fossil fuels, electrical and thermal energy production generates a vast amount of CO2. A great alternative would be to invest in renewable energy, like the geothermal waters located in the northwestern part of Romania. Dr. Ionelia Panea from Bucharest University and her team of brilliant researchers realized that the Baia Mare area was the least explored. 

So they partnered up with the University of Oslo to provide and analyze extensive geo-data. Keep watching the last episode of the 2nd series of "Research in the Spotlight" to learn how both Universities plan on using the collected data to increase the chances of a more sustainable future and start a long-lasting partnership.



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