Calculation of the seismic imaging complexity of complex geological structures
Chen, G., Fu, L.-Y., Chen, K.F., Sun, W., Wei, W. and Guan, X., 2017. Calculation of the seismic imaging complexity of complex geological structures. Journal of Seismic Exploration, 26: 81-104. Quantitative analysis of geological complexity in terms of seismic imaging is an important way to measure the coherent interaction of geological heterogeneity spectra with the migrator used. Based on previous studies, we introduce several new strategies to evaluate the complexity of subsurface heterogeneous media, the main features of which are use of a velocity co-occurrence matrix for velocity variations and use of the Hough transform for dip-angle calculations. First, the velocity co-occurrence matrix is created by statistically classifying adjacent-point velocity contrasts, after which the scaling characteristics of migrators are directly incorporated into the matrix for presenting seismic imaging complexity. Second, vertical velocity variations are also taken into account using a depth-velocity co-occurrence matrix. Third, we apply the high-precision Hough transform to locate geological interfaces and estimate the dip angle of each point before calculating angular complexity. Finally, considering the indivisibility of the effect of both lateral/vertical velocity variations and dip angles, we define a comprehensive coefficient to assess the seismic imaging complexity of complex geological structures. Tests on the 2D SEG slat model and field data demonstrate that the new strategies proposed for evaluating geological complexity are reliable and applicable to different degrees of geological complexity due to the sensitivity of the method for detecting small and large velocity contrasts as well as dip-angle variations.
- Bourgeois, A., Bourget, M., Lailly, P., Poulet, M., Ricarte, P. and Versteeg, R., 1991. Marmousi
- model and data. In: Versteeg, R. and Grau, G. (Eds.), Proc. 1990 EAGE Workshop
- Practical Aspects of Seismic Data Inversion, Copenhagen. EAGE, Houten.
- Chopra, S. and Marfurt, K.J., 2005. Seismic attributes - A historical perspective. Geophysics, 70:
- 3SO-28SO.
- de Hoop, M.V., Le Rousseau, J.H. and Wu, R.S., 2000. Generalization of the phase-screen
- approximation for the scattering of acoustic waves. Wave Motion, 31: 285-296.
- Dong, W., Fu, L.Y. and Xiao, Y.J., 2011. Quantitative analysis of the complexity in seismic
- exploration of the high and steep structures in Kuga depression. Chin. J. Geophys., 54:
- 1600-1613 (in Chinese).
- Eichkitz, C.G., Schreilechner, M.G., de Groot, P. and Amtmann, J., 2015. Mapping
- directional variations in seismic character using gray-level co-occurrence matrix-based
- attributes. Interpretat., 3: T13-T23.
- Fu, L.Y. and Duan, Y., 2002. Fourier depth migration methods with application to salt-related
- complex geological structures. Expanded Abstr., 72nd Ann. Internat. SEG Mtg., Salt Lake
- : City: 895-898.
- Fu, L.Y., 2005. Broadband constant-coefficient propagators. Geophys. Prosp., 53: 299-310.
- Fu, L.Y., 2006. Comparison of different one-way propagators for wave forward propagation in
- heterogeneous crustal wave guides. Bull. Seismol. Soc. Am., 96: 1091-1113.
- Fu, L.Y, 2010. Quantitative assessment of the complexity of geological structures in terms of
- seismic propagators. Chin. Earth Sci., 53: 54-63.
- Fu, L.Y., Xiao, Y.J. and Sun, W.J., 2013. Seismic imaging studies of complex high and steep
- structures in the Kuga depression. Chin. J. Geophys., 56: 1985-2001 (in Chinese).
- Gazdag, J., 1978. Wave equation migration with the phase-shift method. Geophysics, 43:
- 1342-1351.
- 104 CHEN, FU, CHEN, SUN, WEI & GUAN
- Guil, N., Villalba, J. and Zapata, E.L., 1995. A fast Hough transform for segment detection. IEEE
- Transact. Image Process., 11: 1541-1548.
- Gao, D., 2003. Volume texture extraction for 3D seismic visualization and interpretation.
- Geophysics, 68: 1294-1302.
- Gao, D., 2007. Application of three-dimensional seismic texture analysis with special reference to
- deep-marine facies discrimination and interpretation: Offshore Angola, West Africa. AAPG
- Bull., 91: 1665-1683.
- Hough, P.V., 1959. Machine analysis of bubble chamber pictures. Proc. Internat. Conf. High
- Energy Accelerat. Instrumentat., Geneva: 554-556.
- Haralick, R.M., Shanmugam, K. and Dinstein, I., 1973. Textural features for image classification.
- IEEE Transact. Systems, Man, Cybernetics, 6: 610-621.
- Huang, L.-J., Fehler, M.C., Roberts, P.M. and Burch, C.C., 1999a. Extended local Rytov Fourier
- migration method. Geophysics, 64: 1535-1545.
- Huang, L.-J., Fehler, M.C. and Wu, R.-S., 1999b. Extended local Born Fourier migration method.
- Geophysics, 64: 152-1534.
- Le Rousseau, J.H. and de Hoop, M.V., 2001. Modeling and imaging with the scalar
- generalized-screen algorithms in isotropic media. Geophysics, 66: 1551-1568.
- Ristow, D. and Ruhl, T., 1994. Fourier finite-difference migration. Geophysics, 59: 1882-1893.
- Stoffa, P.L., Fokkema, J.T., de Luna Freire, R.M. and Kessinger, W.P., 1990. Split-step Fourier
- migration. Geophysics, 55: 410-421.
- Wu, R.S., 1996. Synthetic seismogram in heterogeneous media by one-return approximation. Pure
- Appl. Geophys., 148: 155-173.
- Wu, R.S., Jin, S. and Xie, X.B., 1996. Synthetic seismograms in heterogeneous crustal wave guides
- using screen propagators. Proc. 18th Ann. Seismic Res. Sympos. Monitor. Comprehens.
- Test Ban Treaty: 290-300.
- Yenugu, M., Marfurt, K.J. and Marson, S., 2010. Seismic texture analysis for reservoir prediction
- and characterization. The Leading Edge, 29: 1116-1121.
