Velocity model updating in prestack Kirchhoff time migration for PS converted waves: Part I - Theory

Geophysical Prospecting

Volumn 55, Issue 4, 2007, Pages 525-547

  Dai, Hengchang ^a   Li, Xiang Yang ^a  

^a BRITISH GEOLOGICAL SURVEY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ITERATIVE METHODS; MATHEMATICAL MODELS; SEISMIC WAVES; VELOCITY;

KIRCHOFF TIME; SEISMIC DATA; VELOCITY RATIO;

SEISMIC PROSPECTING;

DATA PROCESSING; DATA SET; ESTIMATION METHOD; INVERSE ANALYSIS; KIRCHHOFF EQUATION; MODELING; PRESTACK MIGRATION; SEISMIC DATA; WAVE DIFFRACTION; WAVE VELOCITY;

EID: 34250319331     PISSN: 00168025     EISSN: 13652478     Source Type: Journal    
DOI: 10.1111/j.1365-2478.2007.00629.x     Document Type: Article

References (20)

1. Alkhalifah T. and Tsvankin I. 1995. Velocity analysis for transversely isotropic media. Geophysics 60, 1550-1566.
2. Bevc D. 1997. Imaging complex structures with semirecursive Kirchhoff migration. Geophysics 62, 577-588.
3. Cheret T., Bale R. and Leaney S. 2000. Parameterization of polar-anisotropic moveout for converted waves. 70th SEG Meeting, Calgary, Canada, Expanded Abstracts, 1181-1184.
4. Claerbout J. 1985. Imaging the Earth's Interior. Blackwell Scientific Publications. ISBN 0865423040
5. Dai H. and Li X.-Y. 2001. Anisotropy migration and model building for 4C seismic data: A case study from Alba. 71 st SEG Meeting, San Antonio, Texas, USA, Expanded Abstracts, 795-798.
6. Dai H. and Li X.-Y. 2002. Sensitivity analysis of migration velocities for P-S converted wave (C-wave) imaging. 64th EAGE Conference, Florence, Italy, Extended Abstracts, P008.
7. Dai H. and Li X.-Y. 2005. Accuracy of a simplified moveout formula for PS converted-waves in multi-layered media. 75th SEG Meeting, Houston, TX, USA, Expanded Abstracts, 1010-1013.
8. Dai H. and Li X.-Y. 2006. The effects of migration velocity errors on traveltime accuracy in prestack Kirchhoff time migration and the image of PS converted waves. Geophysics 71(2), S73-S83.
9. Dai H., Li X.-Y. and Mueller M. 2000. Compensating for the effects of gas clouds by prestack migration: A case study from Valhall. 70th SEG Meeting, Calgary, Canada, Expanded Abstracts, 1047-1050.
10. Granli J., Arntsen B., Solid A. and Hilde E. 1999. Imaging through gas-filled sediments using marine shear-wave data. Geophysics 64, 668-677.
11. Gray S., Etgen J., Dellinger J. and Whitmore D. 2001. Seismic migration problems and solutions. Geophysics 66, 1622-1640
12. Gresillaud A., Suaudeau E. and Grange P. 2003. C-wave imaging: Kirchhoff PSTM versus DMO. 73rd SEG Meeting, Dallas, Texas, USA, Expanded Abstracts, 854-857.
13. Li X.-Y., Dai H. and Mancini F. 2007. Converted-wave imaging in anisotropic media: Theory and case studies. Geophysical Prospecting 55, 345-363.
14. Li X.-Y., Dai H. and Yuan J. 2001. Converted-wave imaging in inhomogeneous, anisotropic media: Part II -prestack migration. 63rd EAGE Conference, Amsterdam, The Netherlands, Extended Abstracts, P114.
15. Li X.-Y. and Yuan J. 2003. Converted-wave moveout and conversion-point equations in layered VTI media: Theory and applications. Journal of Applied Geophysics 54, 297-318.
16. Sena A. and Toksöz M. 1993. Kirchhoff migration and velocity analysis for converted-wave data from the Gulf of Mexico. Geophysics 60, 1550-1566.
17. Thomsen L. 1999. Converted wave reflection seismology over inhomogeneous, anisotropic media. Geophysics 64, 678-690.
18. Traub B. and Li X.-Y. 2006. The effects of near-surface conditions on anisotropy parameter estimations from 4C seismic data. Geophysical Prospecting 54, 15-28.
19. Tsvankin I. and Thomsen L. 1994. Nonhyperbolic reflection moveout in anisotropic media. Geophysics 59, 1290-1304.
20. Yuan J. 2001. Analysis of four-component seafloor seismic data for seismic anisotropy. PhD thesis, The University of Edinburgh.