1887

Abstract

Summary

A 4D feasibility of a carbon storage project was performed in the Bredasdorp Basin. A 4D geomechanical model was carried out by integrating geophysical logs, a 1D geomechanical model, and 3D seismic lines. A 3D static model was first developed using 3D seismic lines and geophysical logs from eight exploration wells. Following the static model, the relative permeability, gas-water contact (GWC), and PVT were imported into the static model to create the dynamic model. A 3D geomechanical grid was constructed and populated with the 1D geomechanical model created from geophysical logs. A 3D model of elastic properties was generated. A stress gradient of 0.016 MPa/m for the minimum stress and 0.018 MPa/m for the maximum stress estimated from drilling data was used as boundary conditions in the 3D geomechanical model. A couple of dynamic and geomechanics simulations were developed to investigate the risk posed by 40 years of carbon injection. It was found that the reservoir remains stable.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.2025646027
2025-11-10
2026-01-13

  • From This Site

    /content/papers/10.3997/2214-4609.2025646027
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Davies, N., 1997. Hydrocarbon evolution of the Bredasdorp Basin, offshore South Africa: from source to reservoir. First Break, 15(11), pp.395–406.
     [Google Scholar]
  2. Jackson, J.A. and McKenzie, D.P., 1983. The geometrical evolution of normal fault systems. Journal of Structural Geology, 5(5), pp.471–482.
     [Google Scholar]
  3. McMillan, I.K., Brink, G.I., Broad, D.S. and Maier, J.J., 1997. Late Mesozoic sedimentary basins off the south coast of South Africa. In: R.C.Selley, ed. Sedimentary Basins of the World, Vol. 3. Amsterdam: Elsevier, pp.319–376.
     [Google Scholar]
  4. Paton, D.A., 2006. Influence of crustal heterogeneity on normal fault dimensions and evolution: Southern South Africa extensional system. Journal of Structural Geology, 28(5), pp.868–886.
     [Google Scholar]
  5. Saffou, E., Raza, A., Gholami, R., Croukamp, L., Elingou, W.R., van Bever Donker, J., Opuwari, M., Manzi, M.S.D. and Durrheim, R.J., 2020. Geomechanical characterization of CO2 storage sites: A case study from a nearly depleted gas field in the Bredasdorp Basin, South Africa. Journal of Natural Gas Science and Engineering, 81(May), pp.103446.
     [Google Scholar]
/content/papers/10.3997/2214-4609.2025646027
Loading
4D Feasibility Study of a Carbon Storage Project in Bredasdorp Basin, South Africa
Conference Proceedings 2025, 1 (2025); https://doi.org/10.3997/2214-4609.2025646027
/content/papers/10.3997/2214-4609.2025646027
/content/papers/10.3997/2214-4609.2025646027
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