Three dimensional before stack depth migration of two dimensiona

Details Three dimensional before stack depth migration of two dimensiona Three dimensional before stack depth migration of two dimensiona

1989-07-13

1990-10-16

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 50, 367 73, G01V 136

Patent

active

049641034

ABSTRACT:
The present invention provides a three dimensional before stack depth migration of two dimensional or three dimensional seismic data. Ray tracing is used to move before stack trace segments to their approximate three dimensional position. The trace segments are scaled to depth, binned, stacked and compared to the model. The model can then be changed to match the depth trace segments which will be stacked better, moved closer to their correct three dimensional position and will compare better to the model.

REFERENCES:
patent: H482 (1988-06-01), Berryhill et al.
patent: 3671929 (1972-06-01), Ruehle et al.
patent: 4415999 (1983-11-01), Moeckel et al.
patent: 4464737 (1984-08-01), Pann
patent: 4479205 (1984-10-01), Gray
patent: 4736347 (1988-04-01), Goldberg et al.
patent: 4742497 (1988-05-01), Beasley et al.
patent: 4745585 (1988-05-01), Larner
patent: 4766574 (1988-08-01), Whitmore
"Trends in Seismic Data Processing," French, W. S., Geophysics, Leading Edge, Sep. 1986, pp. 38-45.

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