D.7.4 Final summary report, Southern Adriatic Site
The Deliverable D7.4 is dedicated to summarize the work performed within Work Package 7.
The Southern Adriatic site is located offshore, in the Southern Adriatic Sea, close to the main Italian CO2 emission power plant “Federico II” (2640 MW) located in Brindisi, where the energy company Enel has started a pilot plant for CO2 capture in March 2011. The selected site consists of a structural trap in a carbonate saline aquifer, located in a relatively stable area and covered by a large amount of seismic and borehole data, collected by different oil companies for hydrocarbon exploration.
The research to be performed within SiteChar project was divided in four tasks; this report describes the activities related to each of these tasks.
Task 7.1 - Data collection and verification of the data quality
The first four months of the project were dedicated to the collection of available data and to the verification of their quality, in order to perform the characterization of the Italian CO2 storage site.
From a preliminary study, based mainly on the analysis of the available wells and some crossing seismic profiles, a potential storage site was identified. It consists of a saline aquifer within a carbonate formation lying in the offshore of the Puglia region (Southern Italy), in front of the ENEL power plant of Brindisi.
The first effort in this phase was to check the amount and quality of available data in the area. The availability of literature information, represented by previous geological studies conducted in the selected area at local and regional scale was also verified. These data consist of:
· Scientific papers and technical reports related to previous geological studies performed in the study area and in other areas (at European and worldwide scale) with similar geological setting and where the application of CCS techniques is presently taking place;
· Technical reports related to ENI hydrocarbon exploration and production licenses made available by the Ministry of Economic Resources within the VIDEPI project. (“Visibility of data related to the exploration activity in Italy”, http://unmig.sviluppoeconomico.gov.it/videpi.)
Milestone MS20-Data quality check - Italian site was achieved, a short report was made available on the SiteChar website.
Task 7.2 Improvement of the static model at reservoir scale
Static model building is part of the activities planned within Task 7.2 (Volpi et al., 2012, Deliverable D7.1). Seismic and wellbore data were analyzed to achieve a geological and structural characterization of the Southern Adriatic area. The building of the regional model took place through the seismostratigraphic and structural interpretation of the 2D seismic profiles made available through the VIDEPI project and the correlation with fifteen wells drilled in the study area. The 3D volumetric gridding, both at a local and regional scale, was performed by OGS using the JewelSuiteTM, release 1.4 build 26, software (JOA Oil & Gas B.V.). After completing the structural model and the volumetric grid, which are the framework of reservoir and caprock model, the next goal was to populate the entire framework of cells with petrophysical properties (facies, porosity, permeability etc.).
Task 7.3 Coupling flow simulation and geomechanics (IFPEN, SINTEF, AGH)
The aim of this Task was to understand the geomechanical and dynamic behaviour of the Southern Adriatic site studied in SiteChar. It includes experimental analysis of data sampling from an onshore analogue performed by AGH, analysis of the caprock integrity performed by SINTEF and investigation of the geomechanical and dynamic behaviour of the most suitable structure identified in the study area, i.e Grazia, performed by IFPEN. The results are summarized in Baroni et al., 2013, Deliverable D7.2.
Task 7.4 Economic analysis (Enel, OGS).
The aim of this task is to provide a techno-economic assessment of CO2 storage offshore South Adriatic. The collected economic data are described in Iacobellis et al., 2013, Deliverable D7.3. The economic evaluation is not included in this report and is presented within Deliverable D2.2 of the SiteChar project.