Carbon Management and Storage for Oltenia: Tackling Romania’s Decarbonization Goals

Liviu Dumitrache, Silvian Suditu (), Gheorghe Branoiu (), Daniela Neagu and Marian Dacian Alecu
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Liviu Dumitrache: Well Drilling, Extraction and Transport of Hydrocarbons Department, Petroleum-Gas University of Ploiesti, 100680 Ploieşti, Romania
Silvian Suditu: Well Drilling, Extraction and Transport of Hydrocarbons Department, Petroleum-Gas University of Ploiesti, 100680 Ploieşti, Romania
Gheorghe Branoiu: Petroleum Geology and Reservoir Engineering Department, Petroleum-Gas University of Ploiesti, 100680 Ploieşti, Romania
Daniela Neagu: Petroleum Geology and Reservoir Engineering Department, Petroleum-Gas University of Ploiesti, 100680 Ploieşti, Romania
Marian Dacian Alecu: Well Drilling, Extraction and Transport of Hydrocarbons Department, Petroleum-Gas University of Ploiesti, 100680 Ploieşti, Romania

Sustainability, 2025, vol. 17, issue 15, 1-20

Abstract: This paper presents a numerical simulation study evaluating carbon dioxide capture and storage (CCS) feasibility for the Turceni Power Plant in Oltenia, Romania, using the nearby depleted Bibești-Bulbuceni gas reservoir. A comprehensive reservoir model was developed using Petrel software, integrating geological and reservoir engineering data for the formations of the Bibești-Bulbuceni structure, which is part of the western Moesian Platform. The static model incorporated realistic petrophysical inputs for the Meotian reservoirs. Dynamic simulations were performed using Eclipse compositional simulator with Peng–Robinson equation of state for a CH4-CO 2 system. The model was initialized with natural gas initially in place at 149 bar reservoir pressure, then produced through depletion to 20.85 bar final pressure, achieving 80% recovery factor. CO 2 injection simulations modeled a phased 19-well injection program over 25 years, with individual well constraints of 100 bar bottom-hole pressure and 200,000 Sm 3 /day injection rates. Results demonstrate successful injection of a 60 Mt CO 2 , with final reservoir pressure reaching 101 bar. The modeling framework validates the technical feasibility of transforming Turceni’s power generation into a net-zero process through CCS implementation. Key limitations include simplified geochemical interactions and relying on historical data with associated uncertainties. This study provides quantitative evidence for CCS viability in depleted hydrocarbon reservoirs, supporting industrial decarbonization strategies. The strategy not only aligns with the EU’s climate-neutral policy but also enhances local energy security by repurposing existing geological resources. The findings highlight the potential of CCS to bridge the gap between current energy systems and a sustainable, climate-neutral future.

Keywords: CO 2 emissions; carbon capture and storage; CCS; net zero; Romania; numerical simulation; depleted hydrocarbon reservoirs (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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