A GIS-DSS for a CO2-ECBM project feasibility study: Case of Sulcis coal basin (Sardinia, Italy)

Ciccu Raimondo, Deiana Paolo, Mazzella Alessandro, Tilocca Caterina

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

The correct identification of the potential sites for geological storage of greenhouse gases (i.e. CO2) is the most important operative step to assure the success of the project. It is obvious that, in the CO 2-ECBM technologies field, the success of a geological storage project can be reached only if, in addition to the technical and the economical accomplishment, the safety for the people and the ecosystems directly exposed are always guaranteed. In the CO2-ECBM technologies field, the geological reservoir evaluation must consider a great number of parameters, often very heterogeneous, mainly concerning: the coal seems features, the hosting formations properties, the environmental restrictions and the human/administrative constrains. The variety and variability of these parameters make each evaluation unique and, for this reason, it is impossible to give some "universally-valid" guidelines to help the Decision Maker in the planning procedure. For these reasons it is not advisable for the Decision Maker using only his own experience rather it would be advisable the use of a Decision Support System (DSS). In the Carbon Geological Storage (CGS) field, the combination of DSS and GIS technologies allows the realization of very powerful tools able to identify and solve technical problems (like the location of geological reservoirs able to contain safely large quantities of gases) and to evaluate technically/economically different alternatives (like the environmental monitoring system planning) in order to assure the right balance between the technical/economical success of the project and its environmental sustainability. This research work concerns the first results accomplished by our research team in the development of a GIS-DSS for the pre-feasibility study of a CO2-ECBM project within the Sulcis coal basin (Italy, SW Sardinia). The GIS-DSS has been completely implemented using the ArcGIS Model Builder 9.3. The available data concerning: the basin DTM, the coal bed 3D-model, the geological maps, the aerial photo, the land use data and the environmental constraints have been combined using the Weighted Overlay Process (WOP). The WOP applied (also known as Multi-Criteria Evaluation - MCE) produced an output grid by combining the input grids values and weighting them by using a relative importance scale. This operative step allowed to define, within the basin area, the most suitable zones where the next detailed studies should be concentrated ("Basin Suitability Map"). The current version of the GIS-DSS, fully functional although yet under development, can be modified to consider more input parameters and/or to produce different results varying the weighting relative scale.
Original languageEnglish
Publication statusPublished - 2010
Externally publishedYes
Event27th Annual International Pittsburgh Coal Conference 2010, PCC 2010 - , Turkey
Duration: 1 Jan 2010 → …

Conference

Conference27th Annual International Pittsburgh Coal Conference 2010, PCC 2010
CountryTurkey
Period1/1/10 → …

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All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geotechnical Engineering and Engineering Geology

Cite this

Raimondo, C., Paolo, D., Alessandro, M., & Caterina, T. (2010). A GIS-DSS for a CO2-ECBM project feasibility study: Case of Sulcis coal basin (Sardinia, Italy). Paper presented at 27th Annual International Pittsburgh Coal Conference 2010, PCC 2010, Turkey.