Method intended to obtain reflection travel times from an...

Data processing: structural design – modeling – simulation – and em – Electrical analog simulator – Of physical phenomenon

Reexamination Certificate

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C702S018000, C367S038000

Reexamination Certificate

active

07069200

ABSTRACT:
A method intended to obtain reflection travel times from an interpretation of seismic data in migrated cylindrical waves, for a given value of the parameter defining the slope of these waves, or the superposition of such data associated with various substantially parallel acquisition lines, this parameter possibly taking successively several values. The method comprises the steps:a) defining a slowness vector ({right arrow over (p)})b) for a given position of a seismic receiver of abscissa (XR) on an acquisition line, seeking, the abscissa (ξ) of the source;c) determining a travel time (te(XR))d) repeating steps (b and c) for all the positions of the receivers for which demigration result is wanted; ande) repeating steps (a to d) for all the acquisition lines for which a demigration result is wanted and for all the values taken by parameter (px).

REFERENCES:
patent: 5737220 (1998-04-01), Miller
patent: 5764514 (1998-06-01), Raynaud et al.
patent: 5852588 (1998-12-01), de Hoop et al.
patent: 5991695 (1999-11-01), Wang et al.
patent: 6067275 (2000-05-01), Sayers
patent: 6418379 (2002-07-01), Bloor et al.
patent: 6446007 (2002-09-01), Finn et al.
Kennet, B.L.N., “Slowness Techniques in Seismic Interpretation”, Meeting to Honor Sir Edward Crisp Bullard, La Jolla, CA, USA, Jan. 11-12, 1980, vol. 86, No. 812, pp. 11575-11584, XP001027864, Journal of Geophysical Research, Dec. 10, 1981, USA ISSN 0148-0227.

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