Abstract
Common-reflection-point (CRP) gather is a bridge that connects seismic data and petrophysical parameters. Pre-stack attributes extraction and pre-stack inversion, both of them are important means of reservoir prediction. Quality of CRP gather usually has great impact on the accuracy of seismic exploration. Therefore, pre-stack CRP gathers noise suppression technology becomes a major research direction. Based on the vector decomposition principle, here we propose a method to suppress noise. This method estimates optimal unit vectors by searching in various directions and then suppresses noise through vector angle smoothing and restriction. Model tests indicate that the proposed method can separate effective signal from noise very well and suppress random noise effectively in single wavenumber case. Application of our method to real data shows that the method can recover effective signal with good amplitude preserved from pre-stack noisy seismic data even in the case of low signal to noise ratio (SNR).
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References Cited
Cao, S. Y., Liu, H. W., Sa, L. M., 2002. A Study on the Restoration of the Original Fracture Information. Petroleum Exploration and Development, 29: 103–105 (in Chinese with English Abstract)
Canales, L. L., 1984. Random Noise Reduction. SEG International Exposition and 54th Annual Meeting, Atlanta. 525–527
Foster, D. J., Mosher, C. C., 1992. Suppression of Multiple Reflectors Using the Radon Transform. Geophysics, 57(3): 386–395
Hampson, D., 1986. Inverse Velocity Stacking for Multiples Estimation. Journal of Canadian Society of Exploration Geophysicists, 22(1): 44–55
He, Y. J., 2010. The Research of Noise Elimination Methods for Three-Component Seismic Pre-Stack Data: [Dissertation]. China University of Geosciences, Beijing (in Chinese with English Abstract)
Hu, T., White, R. E., 1998. Robust Multiple Suppression Using Adaptive Beam Forming. Geophysical Prospecting, 46: 227–248
Kabir, M. M. N., Marfurt, K. J., 1999. Toward True Amplitude Multiples Removal. The Leading Edge, 18(1): 66–73
Liu, G. C., Chen, X. H., Li, J. Y., et al., 2011. Seismic Noise Attenuation Using Nonstationary Polynomial Fitting. Applied Geophysics, 8(1): 18–26
Lu, W. K., 2011. Seismic Random Noise Suppression Based on the Discrete Cosine Transform. Oil Geophysical Prospecting, 46(2): 202–206 (in Chinese with English Abstract)
Ma, Z. X., Sun, Z. D., Bai, H. J., et al., 2010. Comparative Studies on 3D3C VSP Multiple Wave Field Separation Methods. Oil Geophysical Prospecting, 45(2): 219–224 (in Chinese with English Abstract)
Özbek, A., 2000. Adaptive Beam Forming with Generalized Linear Constraints. SEG International Exposition and 70th Annual Meeting, Calgary. 2081–2084
Sheriff, R. E., Geldart, L. P., 1995. Exploration Seismology, 2nd Ed.. Cambridge University Press, Cambridge
Thorson, J. R., Claerbout, J. F., 1985. Velocity-Stack and Slant-Stack Stochastic Inversion. Geophysics, 50(12): 2727–2741
Wang, H. W., 1989. Noise Suppression Using Vector Resolution Method. Oil Geophysical Prospecting, 24(1): 16–29 (in Chinese with English Abstract)
Wang, H. W., 1990. Noise Elimination by the Use of Vector Resolution. Geophysics, 55(9): 1191–1201
Wu, A. D., Cao, S. Y., 2002. Random Noise Suppression of Seismic Signal Using Orthogonal Multiwavelets. Oil Geophysical Prospecting, 37(5): 473–476 (in Chinese with English Abstract)
Xia, H. R., Chen, D. G., Zhou, K. M., et al., 2001. Noise Elimination with Median-Constrained Vector Resolution. Geophysical Prospecting for Petroleum, 40(3): 29–33 (in Chinese with English Abstract)
Yu, S. P., Cai, X. L., Su, Y. C., 1988. Improvent of Signal-to-Noise Ratio of Stack Section Using Polynomial Fitting of Seismic Signals. Oil Geophysical Prospecting, 23(2): 131–139 (in Chinese with English Abstract)
Zhou, B., Greenhalgh, S. A., 1996. Multiple Suppression by 2D Filtering in the Parabolic t-p Domain: A Wave-Equation-Based Approach. Geophysical Prospecting, 44(1): 375–401
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Yang, X., Cao, S. & Yuan, D. True amplitude extraction technology and its application in pre-stack seismic data. J. Earth Sci. 26, 522–529 (2015). https://doi.org/10.1007/s12583-015-0567-2
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DOI: https://doi.org/10.1007/s12583-015-0567-2