1887

Abstract

Summary

The geological heterogeneity of key CO2 injection targets in the UKCS is exhibited at various scales. However, due to the size and spatial extent of saline aquifers, usually only the regional scale is modelled to investigate the spatial distribution of CO2 over time. Time-lapse seismic is a well-established technology used to monitor CCS operations. This study focuses on the different types of small-scale heterogeneity and translating it onto fine-scale 2D reservoir models. We generate multiple heterogeneity scenarios using available literature, build 2D reservoir models based on them, and flow CO2 across the whole length of the reservoir to simulate progression at the front of the plume. We then utilise Sim2Seis (an ETLP software) to obtain the 4D signal stemming from injection into these heterogeneous reservoirs. As CO2 is highly mobile, we find that its flow pattern may be hard to predict when faced with heterogeneity. The CO2 flow pattern differs based on the proximity to the injection site and inherent heterogeneity of the reservoir. The resulting 4D signal is strong and saturation-driven, and the effect of heterogeneity is visible.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.202521027
2025-10-27
2026-01-24

  • From This Site

    /content/papers/10.3997/2214-4609.202521027
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Côrte, G., Toh, S. Y., Landa, J., Pickup, G., Kopydlowska, B., Heidari, H., Kolajoobi, R. A., & MacBeth, C. [2024]. A Compositional Sim2Seis Workflow for Modelling CO2 Dissolution Effects on 4D Seismic Data. In 5th EAGE Global Energy Transition Conference & Exhibition, Extended Abstracts.
     [Google Scholar]
  2. Furre, A. K., Eiken, O., Alnes, H., Vevatne, J. N., & Kiær, A. F. [2017]. 20 Years of Monitoring CO2-injection at Sleipner. Energy procedia, 114, 3916–3926.
     [Google Scholar]
  3. Gibson-Poole, C. M., Tarasewicz, J., Gray, E., Hitchen, K., Bouffin, N., Taplin, M., Gillespie, A., & Buchanan, S. K. (2025). Endurance saline aquifer CO2 store–from appraisal to development and beyond. In Geological Society, London, Energy Geoscience Conference Series (Vol. 1, No. 1, pp. egc1-2024). The Geological Society of London.
     [Google Scholar]
  4. Kopydlowska, B., & MacBeth, C. [2024]. Assessing 4D Seismic Signal and Its Value Across Saline Aquifer CCS Sites in the UK. In 85th EAGE Annual Conference & Exhibition, Extended Abstracts.
     [Google Scholar]
  5. Krishnamurthy, P., Lun, L., Li, H., & Alqassab, H. [2024]. Investigating How Geological Heterogeneity is Modeled Impact on Large Scale CO2 Storage Performance Prediction. Available at SSRN 5035364.
     [Google Scholar]
  6. Peng, D.-Y., & Robinson, D. B. [1976]. A New Two-Constant Equation of State. Industrial & Engineering Chemistry Fundamentals, 15(1), 59–64.
     [Google Scholar]
  7. Williams, J. D. O., Jin, M., Bentham, M., Pickup, G. E., Hannis, S. D., & Mackay, E. J. [2013]. Modelling carbon dioxide storage within closed structures in the UK Bunter Sandstone Formation. International Journal of Greenhouse Gas Control, 18, 38–50.
     [Google Scholar]
/content/papers/10.3997/2214-4609.202521027
Loading
Geological Heterogeneity of the UKCS Aquifers and its Impact on CO2 Injection and 4D Seismic Signal
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.202521027
/content/papers/10.3997/2214-4609.202521027
/content/papers/10.3997/2214-4609.202521027
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error