Method of accounting for wavelet stretch in seismic data

Details Method of accounting for wavelet stretch in seismic data Method of accounting for wavelet stretch in seismic data

2008-07-29

2008-07-29

Hughes, Deandra M (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

Reexamination Certificate

active

07405997

ABSTRACT:
A computer-implemented method of accounting for angle-dependent wavelet stretch in seismic data based on a novel relationship between wavelet stretch and the cosine of a reflection angle of an acoustic ray. Conventional seismic data having at least one wavelet, such as data generated from a reflection seismic survey, is accessed. The data is processed such that at least one wavelet is subject to angle-dependent wavelet stretch. A reflection angle for at least one wavelet is also determined. An operator is utilized to calculate a wavelet stretch factor for at least one wavelet based on the cosine of the corresponding reflection angle of the wavelet. The wavelet stretch factor is applied to the seismic data to account for angle-dependent wavelet stretch.

REFERENCES:
patent: 4884247 (1989-11-01), Hadidi et al.
patent: 5297108 (1994-03-01), Swan
patent: 5583826 (1996-12-01), Soubaras
patent: 5684754 (1997-11-01), Byun et al.
patent: 5982706 (1999-11-01), Byun
patent: 6021379 (2000-02-01), Duren et al.
patent: 6131071 (2000-10-01), Partyka et al.
patent: 6343256 (2002-01-01), Winbow et al.
patent: 6516275 (2003-02-01), Lazaratos
patent: 6519532 (2003-02-01), Meng
patent: 6654692 (2003-11-01), Neff
patent: 6745129 (2004-06-01), Li et al.
patent: 7072767 (2006-07-01), Routh et al.
patent: 7167414 (2007-01-01), Lee et al.
patent: 7196969 (2007-03-01), Karazincir
patent: 7230879 (2007-06-01), Herkenhoff et al.
patent: 2002/0141287 (2002-10-01), Lazaratos
patent: 2005/0043892 (2005-02-01), Lichman et al.
patent: 2005/0088914 (2005-04-01), Ren et al.
patent: 2006/0193205 (2006-08-01), Herkenhoff et al.
patent: 2006/0235666 (2006-10-01), Assa et al.
Dey et al. Investigating the randomness assumption in wavelet estimation. Crewes Research Report. vol. 9. 1997. pp. 22-1 to 22-11.
Alkhalifah, Tariq. Velocity analysis using nonhyperbolic moveout in transversely isotropic media. Geophysics. vol. 62. No. 6. 1997. pp. 1839-1854.
Bancroft, John. The NMO Stretch Factor and Dip Limits in EOM. Crewes Research Report. vol. 8. 1996. pp. 26-1 to 26-5.
Xu et al. Improving AVO fidelity by NMO stretching and offset dependent tuning corrections. Arcis Newsletter Q4—2006.

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