Projects / Programmes
Zajemanje CO2 v geoloških medijih: kriteriji in pristop za izbiro lokacije kot odziv na klimatske spremembe (Slovene)
| Code |
Science |
Field |
Subfield |
| 1.06.04 |
Natural sciences and mathematics |
Geology |
Geochemistry |
Researchers (1)
| no. |
Code |
Name and surname |
Research area |
Role |
Period |
No. of publicationsNo. of publications |
| 1. |
21543 |
PhD Tjaša Kanduč |
Geology |
Head |
2010 - 2011 |
488 |
Organisations (1)
| no. |
Code |
Research organisation |
City |
Registration number |
No. of publicationsNo. of publications |
| 1. |
0106 |
Jožef Stefan Institute |
Ljubljana |
5051606000 |
90,742 |
Significance for science
Structural-geological and geochemical researches of fluids and their distribution (geochemical maps) in Velenje coal basin represent basic information on suitability of coal basin for CO2 sequestration and new knowledge about transport processes of fluid in coal basin.
During the project the first time systematic geochemical and hydrogeochemical researches of groundwater (researches of Pliocene and Triassic aquifers) in Velenje basin were performed. With these researches better insight in the formation of the basin and fluids (CO2 and methane) and biogeochemical processes (CO2 reduction, precipitation) in the system gas-water-carbonate ongoing in the coal seam are clarified. Pliocene and Triassic aquifers represent transport medium for CO2, which dissolves in water and in the case of thermodynamical over saturation precipitates in form of carbonate lenses and veins in fractured zones close to fault zones. These secondary formed carbonates give better information on fluid origin. With hydrogeochemical data of groundwaters important information were obtained about origin and age of groundwater and its quality. During duration of applied podoctoral project the coolaboration with University of Arizona, Tucson, ZDA (bilateral project USA-Slovenia 2012-2013, BI-US/12-13-039) was established.
This study of fluids, their transport pathways and processes is important for CO2 sequestration in sedimentary basins. Researches in the scope of proposed project will present the basic approach for searching new sedimentary (coal) basins in case of problematic of CO2 sequestration. Since Velenje coal basin represents natural analogue of coalbed gases geochemical and isotopic researches are important in case of methane exploration from coalbed strata and consequantly reduction of greenhouse gases.
Significance for the country
Applied researched project with the title: Sequestration of CO2 in geological media: criteria and approach for site selection in response to climate change was performed in cooperation with Velenje coalmine (Statement of cooperation is in addition). Distribution of coalbed gases and determination of transport of fluids will help to help to search best potential locations for CO2 sequestration and methane exploration. Research of the methane origin is important also because of the possibility of its use in future as energy source and simultaneously reduction of methane emissions in the atmosphere. Furthermore, proposed project will present basic for hydrogeochemical monitoring in case of CO2 sequestration in coalmine since CO2 sequestration in geologic media represents the most appropriate method for solving problematic of anthropogenic CO2 emissions. Proposed project will give the opportunity for reducing anthropogenic CO2 emissions and consequently climatic changes according to Kyoto protocol.
Hydrogeochemical research of groundwater (especially Triassic) in the Velenje coal basin are also interesting for the water supply management and closeness of water, which is separated from coalbed seam with thin intermediate clay strata and can represent potential dangerous of water invasion in mine.
Results of geochemical analyses of gases are related to results of tension and deformation state at excavation fields, which are assembled by project ants of the Velenje coalmine. Part of the geochemical research was incorporated in applicative part of science by the Velenje coalmine. Beneficiaries gained new knowledge about variation of coalbed gases with longwall method of excavation.
Applied research project also serves as basis for greater safety and accidents reduction due to gas outbursts in coalmine. These researches will represent also a benefit for the Velenje coalmine to achieve their goals, such as more effective excavation and greater protection of the coalminers.
Most important scientific results
Annual report
2010,
final report,
complete report on dLib.si
Most important socioeconomically and culturally relevant results
Annual report
2010,
final report,
complete report on dLib.si
