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Modelling of the Long-Term Acid Gas Sequestration and Its Prediction: A Unique Case Study

Oil and Gas Institute—National Research Institute, Lubicz 25A, 31-504 Krakow, Poland
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Energies 2020, 13(18), 4701; https://doi.org/10.3390/en13184701
Received: 17 July 2020 / Revised: 26 August 2020 / Accepted: 5 September 2020 / Published: 9 September 2020
A twenty-four-year on-going project of acid gas sequestration in a deep geological structure was subject to detailed modelling based upon a large set of geological, geophysical, and petrophysical data. The model was calibrated against available operational and monitoring data and used to determine basic characteristics of the sequestration process, such as fluid saturations and compositions, their variation in time due to fluid migrations, and the gas transition between free and aqueous phases. The simulation results were analysed with respect to various gas leakage risks. The contribution of various trapping mechanisms to the total sequestrated amount of injected gas was estimated. The observation evidence of no acid gas leakage from the structure was confirmed and explained by the simulation results of the sequestration process. The constructed and calibrated model of the structure was also used to predict the capacity of the analysed structure for increased sequestration by finding the optimum scenario of the risk-free sequestration performance. View Full-Text
Keywords: gas sequestration; geological structure; reservoir modelling; leakage risk; trapping mechanisms; sequestration capacity gas sequestration; geological structure; reservoir modelling; leakage risk; trapping mechanisms; sequestration capacity
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MDPI and ACS Style

Szott, W.; Łętkowski, P.; Gołąbek, A.; Miłek, K. Modelling of the Long-Term Acid Gas Sequestration and Its Prediction: A Unique Case Study. Energies 2020, 13, 4701. https://doi.org/10.3390/en13184701

AMA Style

Szott W, Łętkowski P, Gołąbek A, Miłek K. Modelling of the Long-Term Acid Gas Sequestration and Its Prediction: A Unique Case Study. Energies. 2020; 13(18):4701. https://doi.org/10.3390/en13184701

Chicago/Turabian Style

Szott, Wiesław, Piotr Łętkowski, Andrzej Gołąbek, and Krzysztof Miłek. 2020. "Modelling of the Long-Term Acid Gas Sequestration and Its Prediction: A Unique Case Study" Energies 13, no. 18: 4701. https://doi.org/10.3390/en13184701

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