Abstract
TheZ component andX component profiles of seismic waves extracted with the prestack Kirchhoff integral migration could approximate to the primary wave (P wave) and converted shear wave (PS wave) profiles under certain conditions. The relative change of their reflection amplitude reflects the formation stress anomaly and subsurface media anisotropy. The principle and method for extracting amplitude ratios were studied and the application of amplitude ratio profiles was also examined when processing and interpreting actual seismic data. The amplitude ratio profile is an effective supplementary means of identifying the stratigraphic boundary and lithology.
Similar content being viewed by others
References
Bevc D. (1997) Imaging complex structures with semi-recursive Kirchhoff migration.Geophysics, 62, 577–588
Chen B. S., Li S. K. and Zhang L. H. (2001) Application of seismic prestack migration techniques.China Offshore Oil and Gas (Geology), 15(5), 361–364 (in Chinese)
Huang K., Yang X. M., Xu Q. Z.,et al. (1997) The extraction of P-wave and S-wave for hydrocarbon detection using prestack Kirchhoff integral migration.Geophysical Prospecting for Petroleum, 36(2), 1–6 (in Chinese)
Li L. M. and Luo S. X. (1998) A method for establishing P-P and P-SV wave prestack depth migration velocity model.Chinese Journal of Geophysics, 41(6), 305–318 (in Chinese)
Qin F. H., Guo Y. X. and Wang M. Y. (1988) Kirchhoff elastic wave migration method.Chinese Journal of Geophysics, 31(9), 577–578 (in Chinese)
Sheriff R. E. and Geldart L. P. (1999)Exploration Seismology (2nd edition). Cambridge Univ. Press
Thornesen L. (1999) Converted-wave reflection seismology over inhomogeneous, anisotropic media.Geophysics, 64, 678–690
Wang J. L., Li Y. M. Leng C. B.,et al. (1999) Methodological study of two-dimensional prestack depth migration and auxiliary treatment scheme.Oil Geophysical Prospecting, 34(supplement), 1–12 (in Chinese)
Zhang P., Li Y. M. and Liu H. (2000) The situation of several prestack depth migration methods.Progress in Geophysics, 15(2), 30–39 (in Chinese)
Author information
Authors and Affiliations
Additional information
Wu Zhiqin was born in 1973 and received his Ph.D degree from China University of Mining and Technology (Beijing) in 2005. He is undertaking post-doctoral research in the School of Resources and Information, China University of Petroleum (Beijing), with his interests in earth detecting and information technology, E-mail: underskyblue@gmail.com
Rights and permissions
About this article
Cite this article
Zhiqin, W., Shangxu, W., Shaohong, Z. et al. Application of amplitude ratio profiles extracted with prestack Kirchhoff integral migration. Pet. Sci. 4, 36–40 (2007). https://doi.org/10.1007/BF03186571
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03186571