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Influence of seismic diffraction for high-resolution imaging: applications in offshore Malaysia

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Języki publikacji
Small-scale geological discontinuities are not easy to detect and image in seismic data, as these features represent themselves as diffracted rather than reflected waves. However, the combined reflected and diffracted image contains full wave information and is of great value to an interpreter, for instance enabling the identification of faults, fractures, and surfaces in built-up carbonate. Although diffraction imaging has a resolution below the typical seismic wavelength, if the wavelength is much smaller than the width of the discontinuity then interference effects can be ignored, as they would not play a role in generating the seismic diffractions. In this paper, by means of synthetic examples and real data, the potential of diffraction separation for high-resolution seismic imaging is revealed and choosing the best method for preserving diffraction are discussed. We illustrate the accuracy of separating diffractions using the plane-wave destruction (PWD) and dip frequency filtering (DFF) techniques on data from the Sarawak Basin, a carbonate field. PWD is able to preserve the diffraction more intelligently than DFF, which is proven in the results by the model and real data. The final results illustrate the effectiveness of diffraction separation and possible imaging for high-resolution seismic data of small but significant geological features.
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Bibliogr. 32 poz.
  • Department of Petroleum Geoscience, Centre for Seismic Imaging (CSI) Universiti Teknologi PETRONAS Seri Iskandar Malaysia, Yasir.
  • Department of Petroleum Geoscience, Centre for Seismic Imaging (CSI) Universiti Teknologi PETRONAS Seri Iskandar Malaysia
  • Department of Petroleum Geoscience, Centre for Seismic Imaging (CSI) Universiti Teknologi PETRONAS Seri Iskandar Malaysia
  • 1. Bashir Y, Ghosh DP, Alashloo SYM, Sum CW (2016) Effect of frequency and migration aperture on seismic diffraction imaging. In: IOP conference series: earth and environmental science. IOP Publishing, p. 12001
  • 2. Bashir Y, Ghosh D, Sum C (2017a) Preservation of seismic diffraction to enhance the resolution of seismic data. In: SEG Technical Program Expanded Abstracts 2017. Society of Exploration Geophysicists, pp. 1038–1043
  • 3. Bashir Y, Ghosh DP, Sum CW (2017b) Diffraction amplitude for fractures imaging & hydrocarbon prediction. J Appl Geol Geophys 5:50–59
  • 4. Bashir Y, Ghosh DP, Weng Sum C, Janjuhah HT (2018) Diffraction enhancement through pre-image processing: applications to field data, Sarawak Basin, East Malaysia. Geosciences 8:74
  • 5. Berkovitch A, Belfer I, Hassin Y, Landa E (2009) Diffraction imaging by multifocusing. Geophysics 74:WCA75–WCA81
  • 6. Berryhill JR (1977) Diffraction response for nonzero separation of source and receiver. Geophysics 42:1158–1176.
  • 7. Bleistein N (1986) Two- and-one-half dimensional in-plane wave propagation*. Geophys Prospect 34:686–703.
  • 8. Claerbout JF (1992) Earth soundings analysis: processing versus inversion, vol 6. Blackwell Scientific Publications, London
  • 9. Claerbout J (1998) Multidimensional recursive filters via a helix. Geophysics 63:1532–1541
  • 10. Claerbout J, Brown M (1999) Two-dimensional textures and prediction-error filters. In: 61st EAGE conference and exhibition
  • 11. Decker L, Klokov A, Fomel S (2013) Comparison of seismic diffraction imaging techniques: Plane wave destruction versus apex destruction. In: SEG technical program expanded abstracts 2013. Society of exploration geophysicists, pp. 4054–4059G
  • 12. Dell S, Gajewski D (2011) Common-reflection-surface-based workflow for diffraction imaging. Geophysics 76:S187–S195
  • 13. Dell S, Abakumov I, Kashtan B, Gajewski D (2017) Utilizing diffractions in full-wave inversion for a detailed model building. In: SEG technical program expanded abstracts 2017. Society of exploration geophysicists, pp. 1033–1037
  • 14. Fomel S (2000) Three-dimensional seismic data regularization (Doctoral dissertation, Stanford University)
  • 15. Fomel S (2002) Applications of plane-wave destruction filters. Geophysics 67:1946–1960
  • 16. Fomel S, Claerbout JF (2003) Multidimensional recursive filter preconditioning in geophysical estimation problems. Geophysics 68:577–588
  • 17. Ghosh D, Halim MFA, Brewer M, Viratno B, Darman N (2010) Geophysical issues and challenges in Malay and adjacent basins from an E & P perspective. The Leading Edge 29(4):436–449
  • 18. Gray SH, Etgen J, Dellinger J, Whitmore D (2001) Seismic migration problems and solutions. Geophysics 66(5):1622–1640
  • 19. Janjuhah HT, Gamez Vintaned JA, Salim AMA, Faye I, Shah MM, Ghosh DP (2017) Microfacies and depositional environments of miocene isolated carbonate platforms from Central Luconia, Offshore Sarawak, Malaysia. Acta Geol Sin 91:1778–1796 (English Ed.)
  • 20. Kadir MB (2010) Fractured basement exploration case study in Malay Basin. In: PGCE 2010
  • 21. Khaidukov V, Landa E, Moser TJ (2004) Diffraction imaging by focusing-defocusing: an outlook on seismic superresolution. Geophysics 69:1478–1490
  • 22. Klokov A, Fomel S (2013) Seismic diffraction imaging, one migration dip at a time. In: SEG technical program expanded abstracts 2013. Society of exploration geophysicists, pp. 3697–3702
  • 23. Kozlov E, Barasky N, Korolev E, Antonenko A, Koshchuk E (2004) Imaging scattering objects masked by specular reflections. In: SEG technical program expanded abstracts 2004. Society of exploration geophysicists, pp. 1131–1134
  • 24. Krey T (1952) The significance of diffraction in the investigation of faults. Geophysics 17:843–858
  • 25. Landa E, Keydar S (1998) Seismic monitoring of diffraction images for detection of local heterogeneities. Geophysics 63:1093–1100
  • 26. Madon MH (1999) Malay basin. Petronas: The Petroleum Geology and Resources of Malaysia
  • 27. Madon M, Kim CL, Wong R (2013) The structure and stratigraphy of deepwater Sarawak, Malaysia: implications for tectonic evolution. J Asian Earth Sci 76:312–333
  • 28. Moser TJ, Howard CB (2008) Diffraction imaging in depth. Geophys Prospect 56:627–641
  • 29. Pusey LC, Vidale JE (1991) Accurate finite-difference calculation of WKBJ travel times and amplitudes. In: SEG technical program expanded abstracts 1991. Society of exploration geophysicists, pp. 1513–1516G
  • 30. Schwarz B, Gajewski D (2017) Accessing the diffracted wavefield by coherent subtraction. Geophys J Int 211:45–49
  • 31. Spitz S (1991) Seismic trace interpolation in the FX domain. Geophysics 56:785–794
  • 32. Yasir B, Ghosh DP, Moussavi Alashloo SY, Sum CW (2016) Seismic modeling and imaging using wave theory for fault and fracture identification. In: Offshore technology conference Asia. Offshore technology conference
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