Robust adaptive polarization analysis method for eliminating ground roll in 3C land seismics
Chen Hai-Feng1,2,3, Li Xiang-Yang1,2,3,4, Qian Zhong-Ping2, and Zhao Gui-Ling2
1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China.
2. BGP Inc., CNPC, Zhuozhou, Hebei 072751, China.
3. CNPC Key Laboratory of Geophysical Prospecting, China University of Petroleum (Beijing), Beijing 102249, China.
4. Edinburgh Anisotropy Project, British Geophysical Survey, Edinburgh, U. K.
Abstract：
To improve the data quality of converted waves, and better identify and suppress the strong ground-roll interference in three-component (3C) seismic recordings on land, we present an adaptive polarization filtering method, which can effectively separate the ground-roll interference by combining complex polarization and instantaneous polarization analysis. The ground roll noise is characterized by elliptical plane polarization, strong energy, low apparent velocity, and low frequency. After low-pass filtering of the 3C data input within a given time-window of the ground roll, the complex covariance matrix is decomposed using the sliding time window with overlapping data and length that depends on the dominant ground-roll frequency. The ground-roll model is established using the main eigenvectors, and the ground roll is detected and identified using the instantaneous polarization area attributes and average energy constraints of the ground-roll zone. Finally, the ground roll is subtracted. The threshold of the method is stable and easy to select, and offers good ground-roll detection. The method is a robust polarization filtering method. Model calculations and actual data indicate that the method can effectively identify and attenuate ground roll while preserving the effective signals.
CHEN Hai-Feng,LI Xiang-Yang,QIAN Zhong-Ping et al. Robust adaptive polarization analysis method for eliminating ground roll in 3C land seismics[J]. APPLIED GEOPHYSICS, 2013, 10(3): 294-304.
[1]
Benhama, A., Cliet, C., and Dubesset, M., 1988, Study and application of spatial directional filterings in three-component recordings: Geophysical Prospecting, 36, 591 - 613.
[2]
Chen, Y., Zhang, Z. J., and Tian, X. B., 2005, Complex polarization analysis based on windowed Hilbert transform and its application: Chinese J. Geophys (in Chinese), 48(4), 889 - 895.
[3]
Christoffersson, A., Husebye, E. S., and Ingate, S. F., 1988, Wavefield decomposition using ML probabilities in modelling single-site 3-component records, Geophys. J., 93, 197 - 213.
[4]
De, Meersman. K., and Kendall, R., 2005, A complex SVD-polarization filter for ground roll attenuation on multi-component data: 67th EAGE Conference & Exhibition, Extended Abstracts, B019.
[5]
Diallo, M. S., Ross, W. S., and Krohn, C. E., 2008, Constrained polarization filtering for surface-wave mitigation: 78th Annual International Meeting, SEG, Expanded Abstracts, 1058 - 1061, PAPR195.
[6]
Flinn, E. A., 1965, Signal analysis using rectilinearity and direction of particle motion: Proceedings of the IEEE, 53, 1874 - 1876.
[7]
Franco, R., and Musacchio, G., 2001, Polarization filter with singular value decomposition: Geophysics, 66, 932 - 938.
[8]
Huang, Z. Y., Gao, L., Xu, Y. M., et al., 1996, The analysis of polarization in three-component seismic data and its application: Geophysical Prospecting for Petroleum (in Chinese), 35(2), 9 - 16.
[9]
Jackson, G. M., Mason, I. M., and Greenhalgh, S. A., 1991, Principal component transforms of triaxial recordings by singular value decomposition: Geophysics, 56(4), 528 - 533.
[10]
Jin, S., and Ronen, S., 2005, Ground roll detection and attenuation by 3C polarization analysis: 67th EAGE Conference & Exhibition, Extended Abstracts, B020.
[11]
Jurkevics, A., 1988, Polarization analysis of three-component array data: Bulletin of the Seismological Society of America, 78(5), 1725 - 1743.
[12]
Lu, J., Wang, Y., and Yang, C. Y., Instantaneous polarization filtering focused on suppression of surface waves: Applied Geophysics, 7(1), 88 - 97.
[13]
Morozov, L. B., and Smithson, S. B., 1996, Instantaneous polarization attributes and directional filtering: Geophysics, 61(3), 872 - 881.
[14]
René, R. M., Fitter, J. L., Forsyth, P. M., et al., 1986, Multi-component seismic studies using complex trace analysis: Geophysics, 51(6), 1235 - 1251.
[15]
Samson, J. C., 1977, Matrix and Stokes vector representation of detectors for polarized wave-forms: theory, with some applications to teleseismic waves: Geophysical Journal of the Royal Astronomical Society, 51, 583 - 603.
[16]
Shieh, C., and Herrmann, R. B., 1990, Ground roll: Rejection using polarization filters: Geophysics, 55, 1216 - 1222.
[17]
Shimshoni, M., and Smith, S. W., 1964, Seismic signal enhancement with three-component detectors: Geophysics, 29, 664 - 671.
[18]
Stewart, R. R., 1990, Ground-roll filtering using local instantaneous polarization: CREWES, Research Reports.
[19]
Tatham, R. H., and McCormack, M. D., 1991, Multicomponent seismology in petroleum exploration: SEG Publication, Tulsa, Ok.
[20]
Tiapkina, O., 2008, Advanced detector of ground roll for single-station SVD-based polarization filtering: 70th EAGE Conference & Exhibition, Extended Abstracts, P141.
[21]
Tiapkina, O., 2009, When single-station SVD-polarization filtering is effective and how it compares to multistation procedures: 71st EAGE Conference & Exhibition, Extended Abstracts, P207.
[22]
Tiapkina, O., Landr?, M., and Tyapkin, Y., 2010, Single-station SVD-based polarization filtering - theoretical and synthetic data investigations: 72nd EAGE Conference & Exhibition, Extended Abstracts, P127.
[23]
Tiapkina, O., Landr?, M., Tyapkin, Y., and Link, B., 2011, Single-station SVD-based polarization filtering of ground roll: Investigation of limitations and pitfalls: 73rd EAGE Conference & Exhibition, Extended Abstracts, P094.
[24]
Vidale, T., 1986, Complex polarization analysis of particle motion: Bulletin of the Seismological Society of America, 76, 1393 - 1405.
[25]
White, J. E., 1964, Motion product seismograms: Geophysics, 29, 288 - 298.
2013, Vol. 10 
