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Abstract

Summary

This 4D feasibility study for a pre-salt reservoir in Santos basin covers distinct carbonate rocks – stromatolites, grainstones and coquinas, both from Aptian age. The study uses the 3D simulation model as input data and converts its static and dynamic properties into elastic properties and synthetic seismic data. The methodology incorporates two different NRMS noise levels in order to understand the impact of repeatability on the quality of 4D signal.

The use of synthetic data allows, besides the choose of the best time and the best method of 4D seismic acquisition, previous analysis of 4D interpretation, showing which should be the proper attributes to highlight each expected 4D effect and the main issues of the use of 4D seismic data to identify reservoir production characteristics.

The final results points to the possibility of detect the main production effects in seismic data with very high level of repeatability. That way, besides amplitude data interpretation, poisson's ratio or V_P/V_S changes analysis can help the gas front identification, and time-shift can recognize the pressure anomalies zones.

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/content/papers/10.3997/2214-4609.201901401
2019-06-03
2024-04-19

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References

  1. Allo, F., Riffault, D., Doyen, P., Nunes, J. P., dos Santos, M. S. and Johann, P.
    [2013]. Reducing turnaround time for time-lapse feasibility studies. In: 13th International Congress of the Brazilian Geophysical Society & EXPOGEF
     [Google Scholar]
  2. Gonzalez-Carballo, A., Guyonnet, P. Y., Levallois, B., Veillerette, A. and Deboiasne, R.
    [2006]. 4D monitoring in Angola and its impact on reservoir understanding and economics. The Leading Edge, 25(9), 1150–1159.
     [Google Scholar]
  3. Grochau, M. H., Benac, P. M., de Magalhães Alvim, L., Sansonowski, R. C, da Motta Pires, P. R. and Villaudy, F.
    [2014]. Brazilian carbonate reservoir: A successful seismic time-lapse monitoring study. The Leading Edge, 33(2), 164–170.
     [Google Scholar]
  4. Hubans, C.
    [2016]. 4D Noise Understanding to Validate 4D Anomalies. In: 78th EAGE Conference and Exhibition. Viena, Austria, expanded abstracts.
     [Google Scholar]
  5. MacBeth, C, Mangriotis, M. D. and Amini, H.
    [2018]. A review of post-stack 4D seismic time-shifts, part 1: Values and interpretation. Geophysical Prospecting.
     [Google Scholar]
  6. Mello, V. L., Grochau, M. H., & Morschbacher, M. J.
    [2015[. Improving Pressure Sensitivity Analysis of Brazilian Pre-Salt Carbonates. In: 14th International Congress of the Brazilian Geophysical Society & EXPOGEF
     [Google Scholar]
  7. Sansonowski, R., Oliveira, Ribeiro, N.M.S.Junior and Bampi, D.
    [2007]. 4D Seismic Interpretation in the Marlim Field, Campos Basin, Offshore Brazil. SEG, Santo Antonio, TX, USA, expanded abstracts.
  8. Staples, R., Cook, A., Braisby, J., Hodgson, B. and Mabillard, A.
    [2006]. Integration of 4D seismic data and the dynamic reservoir model reveal new targets in Gannet C. The Leading Edge, 25(9), 1126–1133.
     [Google Scholar]
  9. Van Gestel, J. P., Kommedal, J. H., Barkved, O. I., Mundal, I., Bakke, R., & Best, K. D.
    [2008]. Continuous seismic surveillance of Valhall Field. The Leading Edge, 27(12), 1616–1621.
     [Google Scholar]
  10. Vasquez, G.F., Morschbacher, M.J., Justen, J.C.R, Lacerda, D.L.P. and Figueiredo, M.P.
    [2018]. Poroelasticidade de reservatórios: a ponte entre a geofísica e a geoengenharia. In: 49° Congresso Brasileiro de Geologia. Rio de Janeiro, Brazil, expanded abstracts.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201901401
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4D Petroelastic Modeling for a Brazilian Pre-Salt Field: What to Expect From Interpretation?
Conference Proceedings 2019, 1 (2019); https://doi.org/10.3997/2214-4609.201901401
/content/papers/10.3997/2214-4609.201901401
/content/papers/10.3997/2214-4609.201901401
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