Method for stable estimation of anisotropic parameters for...

Details Method for stable estimation of anisotropic parameters for... Method for stable estimation of anisotropic parameters for...

2006-01-10

2006-01-10

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C367S050000, C702S014000

Reexamination Certificate

active

06985405

ABSTRACT:
A method is disclosed for determining interval anisotropic parameters. The method includes determining normal moveout (NMO) velocities and effective anelliptical parameters from seismic data traces. The NMO velocities are processed to obtain interval NMO velocities. The NMO velocities, effective anelliptical parameters and interval NMO velocities are inverted to obtain the interval anisotropic parameters. In one embodiment, the inversion includes damped least squares. In one embodiment, the inversion is preconditioned.

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patent: 2 312 281 (1997-10-01), None
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Robert G. Clapp, Paul Sava, Jon F. Claerbout, “Interval velocity estimation with a null-space”, Stanford Exploration Project, 1998, pp. 147-157, Report SEP-97.
Min Lou, Long Don Pham, Sheng Lee, “Anisotropic parameter estimation from P- and PS-converted wave data”, EAGE 64thConference & Exhibition, 2002, Florence, Italy.
Ruben D. Martinez, Sheng Lee, “A strategy for anisotrpic P-wave prestack imaging”, 72ndAnn. Internat. Mtg, Soc. Expl. Geophys., Expanded Abstracts, 2002, pp. 149-152.

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