1887

Abstract

Summary

The feasibility of a CO2 storage scheme depends on many factors, including the presence of impurities in the CO2 supply. This study investigates the effects of CO2 purity on storage in mature chalk oil reservoirs in late stages of production with geological and petrophysical characteristics favorable to CO2 injection. The presence of minor impurity constituents in the supercritical CO2 stream will affect the phase behavior, viscosity, density and interfacial behavior of the CO2, particularly for the non-compressible impurities N2, Argon and O2. These phase parameters as well as other chemical and physical properties depend on the intermolecular interactions between the CO2 molecules and the available impurities, which may for some polar impurities strongly dominate relative to the self-association forces between CO2 molecules. The approach is a series of quantum chemical calculations and of the interactions between CO2 and all relevant impurities to identify those that interact most significantly with CO2 relative to the self-association forces between CO2 molecules in the pure form. The most important systems are confirmed experimentally, and subsequently core flood experiments with the identified impurity-CO2 systems are conducted to investigate the effects on rock integrity and dissolution during injection and storage.

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2023-06-05
2026-02-12

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References

  1. Porter, R. T. J., Fairweather, M., Pourkashanian, M., & Woolley, R. M. (2015). The range and level of impurities in CO2 streams from different carbon capture sources. International Journal of Greenhouse Gas Control, 36, 161–174. https://doi.org/10.1016/j.ijggc.2015.02.016
     [Google Scholar]
  2. Vu, H. P., Black, J. R., & Haese, R. R. (2018). The geochemical effects of O2 and SO2 as CO2 impurities on fluid-rock reactions in a CO2 storage reservoir. International Journal of Greenhouse Gas Control, 68, 86–98. https://doi.org/10.1016/j.ijggc.2017.11.001
     [Google Scholar]
  3. Vitali, M., Corvaro, F., Marchetti, B., & Terenzi, A. (2022). Thermodynamic challenges for CO2 pipelines design: A critical review on the effects of impurities, water content, and low temperature. In International Journal of Greenhouse Gas Control (Vol. 114). Elsevier Ltd. https://doi.org/10.1016/j.ijggc.2022.103605
     [Google Scholar]
  4. Ziabakhsh-Ganji, Z., & Kooi, H. (2014). Sensitivity of the CO2 storage capacity of underground geological structures to the presence of SO2 and other impurities. Applied Energy, 135, 43–52. https://doi.org/10.1016/j.apenergy.2014.08.073
     [Google Scholar]
  5. Mihrin, Dmytro, and R. WugtLarsen. THz spectroscopy of weakly bound cluster molecules in solid para-hydrogen: a sensitive probe of van der Waals interactions. Physical Chemistry Chemical Physics21. 1 (2019): 349–358. https://doi.org/10.1039/C8CP05060K
     [Google Scholar]
  6. Wang, J., Wang, Z., Ryan, D., & Lan, C. (2015). A study of the effect of impurities on CO2 storage capacity in geological formations. International Journal of Greenhouse Gas Control, 42, 132–137. https://doi.org/10.1016/j.ijggc.2015.08.002
     [Google Scholar]
  7. Pan, Y., Hui, D., Luo, P., Zhang, Y., Sun, L., & Wang, K. (2018). Experimental Investigation of the Geochemical Interactions between Supercritical CO2 and Shale: Implications for CO2 Storage in Gas-Bearing Shale Formations. Energy and Fuels, 32(2), 1963–1978. https://doi.org/10.1021/acs.energyfuels.7b03074
     [Google Scholar]
/content/papers/10.3997/2214-4609.2023101189
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Effects of impurities on CO2 storage in chalk reservoirs
Conference Proceedings 2023, 1 (2023); https://doi.org/10.3997/2214-4609.2023101189
/content/papers/10.3997/2214-4609.2023101189
/content/papers/10.3997/2214-4609.2023101189
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