Seismic exploration in areas where p waves are converted to s wa

Details Seismic exploration in areas where p waves are converted to s wa Seismic exploration in areas where p waves are converted to s wa

1983-06-06

1986-08-05

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 75, 364421, G01V 134, G01V 128

Patent

active

046047344

ABSTRACT:
Field seismograms are gathered into sets having reflections from asymmetrical common reflection points where there is a conversion between longitudinal waves and shear waves. The gathered seismograms are stacked to produce a seismic section which emphasizes the reflections from particular types of formations. In particular, reflections from formations having a significant difference in longitudinal to shear wave velocity, such as oil and gas saturated formations, are emphasized in the stacked section.

REFERENCES:
patent: 2390187 (1945-12-01), Sharpe
patent: 3333238 (1967-07-01), Caldwell
patent: 3651451 (1972-03-01), Ruehle
patent: 3940734 (1976-02-01), Blum
patent: 4110729 (1978-08-01), Vreugde
patent: 4206509 (1980-06-01), Ruehle
patent: 4316267 (1982-02-01), Ostrander
Gregory, "Fluid Saturation . . . Rocks", 10/76, pp. 895-921, Geophysics, vol. 41, #5.
Brewer, "How Horizontal Stacking . . . Industry", 10/67, World Oil, pp. 137-149.
Omnes, "Exploring with SH-Waves", 5/11/78, pp. 40-49, CS&G Nat. Conv., Calgary.

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