Containment Evaluation and Reservoir Closure Based on Reflection Seismic – Getica CCS Project

As part of the feasibility study carried out within the Getica CCS demonstration project (located in Oltenia region –south-west part of Romania), a containment evaluation and reservoir (saline aquifers formations) closure analysis were performed for two candidate CO2 storage sites (Zone 1 and Zone 5). The characterization of the reservoir and caprock geometry, as well as the identification of structural discontinuities such as faults and fracture corridors, is based on reflection seismic data.

The reservoir closure analysis focuses on caprock integrity and potential migration pathways, highlighting the limitations of the available data and the need for additional 2D and 3D seismic acquisitions. Zone 5 ( figure 1 ) was identified as the most suitable site for geological CO2 storage, due to its better injectivity and favorable reservoir characteristics.

The study demonstrates the importance of seismic reflection in reducing geological uncertainties and selecting a secure long-term storage site.

A dynamic risk register and a flexible, phased approach support the upcoming stages of project development. Furthermore, the containment evaluation and clarity of geological closure contribute to increasing public trust in the safety of CO2 storage