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Analysis of Caprock Tightness for CO 2 Enhanced Oil Recovery and Sequestration: Case Study of a Depleted Oil and Gas Reservoir in Dolomite, Poland

Author

Listed:
  • Małgorzata Słota-Valim

    (Department of Geology and Geochemistry, Oil and Gas Institute, National Research Institute, 25A Lubicz Str., 31-503 Krakόw, Poland)

  • Andrzej Gołąbek

    (Department of Geology and Geochemistry, Oil and Gas Institute, National Research Institute, 25A Lubicz Str., 31-503 Krakόw, Poland)

  • Wiesław Szott

    (Department of Geology and Geochemistry, Oil and Gas Institute, National Research Institute, 25A Lubicz Str., 31-503 Krakόw, Poland)

  • Krzysztof Sowiżdżał

    (Department of Geology and Geochemistry, Oil and Gas Institute, National Research Institute, 25A Lubicz Str., 31-503 Krakόw, Poland)

Abstract

This study addresses the problem of geological structure tightness for the purposes of enhanced oil recovery with CO 2 sequestration. For the first time in the history of Polish geological survey the advanced methods, practical assumptions, and quantitative results of detailed simulations were applied to study the geological structure of a domestic oil reservoir as a potential candidate for a combined enhanced oil recovery and CO 2 sequestration project. An analysis of the structure sequestration capacity and its tightness was performed using numerical methods that combined geomechanical and reservoir fluid flow modelling with a standard two-way coupling procedure. By applying the correlation between the geomechanical state and transport properties of the caprock, threshold pressure variations were determined to be a key factor affecting the sealing properties of the reservoir–caprock boundary. In addition to the estimation of the sequestration capacity of the structure, the process of CO 2 leakage from the reservoir to the caprock was simulated for scenarios exceeding the threshold pressure limit of the reservoir–caprock boundary. The long-term simulations resulted in a comprehensive assessment of the total amount of CO 2 leakage as a function of time and the leaked CO 2 distribution within the caprock.

Suggested Citation

  • Małgorzata Słota-Valim & Andrzej Gołąbek & Wiesław Szott & Krzysztof Sowiżdżał, 2021. "Analysis of Caprock Tightness for CO 2 Enhanced Oil Recovery and Sequestration: Case Study of a Depleted Oil and Gas Reservoir in Dolomite, Poland," Energies, MDPI, vol. 14(11), pages 1-32, May.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:3065-:d:561712
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    Citations

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    Cited by:

    1. Wiesław Szott & Piotr Ruciński & Małgorzata Słota-Valim & Krzysztof Sowiżdżał, 2023. "Investigation of the Impact of Natural Fracture Geomechanics on the Efficiency of Oil Production and CO 2 Injection from/to a Petroleum Structure: A Case Study," Energies, MDPI, vol. 16(10), pages 1-35, May.
    2. Shanpo Jia & Caoxuan Wen & Xiaofei Fu & Tuanhui Liu & Zengqiang Xi, 2022. "A Caprock Evaluation Methodology for Underground Gas Storage in a Deep Depleted Gas Reservoir: A Case Study for the X9 Lithologic Trap of Langgu Sag, Bohai Bay Basin, China," Energies, MDPI, vol. 15(12), pages 1-22, June.
    3. William Ampomah & Brian McPherson & Robert Balch & Reid Grigg & Martha Cather, 2022. "Forecasting CO 2 Sequestration with Enhanced Oil Recovery," Energies, MDPI, vol. 15(16), pages 1-7, August.
    4. Dariusz Knez & Omid Ahmad Mahmoudi Zamani, 2023. "Up-to-Date Status of Geoscience in the Field of Natural Hydrogen with Consideration of Petroleum Issues," Energies, MDPI, vol. 16(18), pages 1-17, September.

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