1887

Abstract

Summary

This paper presents a case study of brittleness and organic-matter contents (OMC) quantitative seismic interpretation based on an anisotropic AVO inversion scheme and an improved statistical quantitative interpretation method. The target is a lower Silurian-age shale-gas reservoir formation with strong anisotropy in southern Sichuan Basin. In this case, the anisotropic inversion can be more robust than conventional isotropic inversion. The capability of anisotropic and isotropic attributes in brittleness and OMC interpretation are quantitatively compared by well log analysis. Besides, lithology recognition is combined with brittleness and OMC interpretation to reduce the non-uniqueness of the results. The results show that the predicted brittleness and OMC match well with the observations from well-log.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201900688
2019-06-03
2024-04-24
Loading full text...

Full text loading...

References

  1. Avseth, P., Mukerji, T. and Mavko, G.
    [2005] Quantitative Seismic Interpretation. Cambridge University Press.
    [Google Scholar]
  2. Mukerji, T., Avseth, P. and Mavko, G.
    [2001] Statistical rock physics: Combining rock physics, information theory, and geostatistics to reduce uncertainty in seismic reservoir characterization. The Leading Edge, 20(3): 313–319.
    [Google Scholar]
  3. Wang, L., Zhang, F. and Chen, S.
    [2016] A new brittleness prediction method based on quantitative interpretation using statistic rock physics. 86th SEG Annual International Meeting, Expanded Abstracts,, 1661–1665.
    [Google Scholar]
  4. Zhang, B., Zhao, T., Jin, X.
    [2015] Brittleness evaluation of resource plays by integrating petrophysical and seismic data analysis. Interpretation, 3(2): T81–T92.
    [Google Scholar]
  5. Zhang, F., Li, X. and Qian, K.
    [2017] Estimation of anisotropy parameters for shale based on an improved rock physics model, part 1: theory. Journal of Geophysics and Engineering, 14(1): 143–158.
    [Google Scholar]
  6. Zhang, F., Zhang, T., Li, X.
    [2018] Anisotropic Inversion for VTI Media Based on a Modified Approximation of the PP-Wave Reflection Coefficient: Theory And Application. 80th EAGE Conference and Exhibition, Expanded Abstracts, DOI: 10.3997/2214‑4609.201800670.
    https://doi.org/10.3997/2214-4609.201800670 [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201900688
Loading
/content/papers/10.3997/2214-4609.201900688
Loading

Data & Media loading...

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