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HomeEnhanced coal exploitation through underground coal gasification in European lignite mines (COAL2GAS)
Final report
Publication metadata
The present report summarises the achievements of the RFCS project COAL2GAS: Enhanced Coal Exploitation through Underground Coal Gasification in European Lignite Mines (RFCR-CT-2014-00003). The COAL2GAS project aimed at evaluating the feasibility of UCG in shallow lignite seams having in view geological, technical and environmental aspects. Experimental work and modelling have advanced the state-of-the-art in the areas of how UCG can be used to access and exploit resources that cannot be mined economically with other technologies. Based on the analysis of geological, hydrogeological, coal and mining parameters of deposits in the partner countries, with main focus on the Romanian Oltenia deposit, a geological model was created. Site selection criteria have been established, potentially suitable areas for a UCG pilot in the Oltenia deposit have been assessed and the exploration site has been selected. High-quality experimental data were obtained from large-scale gasification tests conducted in artificial coal seams under atmospheric and high pressure (35 bar) regimes, analysis of UCG-related contaminants and laboratory tests of drill samples. Based on the obtained data the suitable process operation and monitoring techniques were selected, well design and engineering were developed and a numerical modelling of UCG operations impact on surrounding soil layers and rocks was performed. COAL2GAS also provided a risk assessment (RA) procedure for UCG operations, a powerful tool for future feasibility studies of foreseen UCG sites that, with few modifications, can also be used to perform RA for other geo-energy activities like (enhanced) coal bed methane. The results obtained during the project were gathered in a site-specific framework method that was developed as complete and integrated guidelines for similar future UCG projects in shallow lignite seams.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission)
- Personal author(s): Bălăcescu, S ; Chitescu, I ; Kapusta, K ; Dobrin, M ; Wollenweber, J ; Stańczyk, K ; Burnete, D ; Wassing, B ; Rošer, J ; Popescu, G ; Lavis, S ; Solschi, A ; Peters, S ; Mostade, M ; Vasile, C ; Koukouzas, N ; Jamnikar, S ; Goncea, C ; Gorka, T ; Tasianas, A ; Gemeni, V ; Tsoukalas, N ; Nepveu, M ; Dumitrescu, M
- Themes: Coal — Hydrocarbons , Industrial research and development
- Subject: coal industry , copper , industrial research , innovation , lignite , report , technology
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| ISSN 1831-9424 | ISBN 978-92-79-98365-8 | DOI 10.2777/608299 | Catalogue number KI-NA-29554-EN-N |
- Released on EU publications website:
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