Velocity determination and stacking process from seismic explora

Details Velocity determination and stacking process from seismic explora Velocity determination and stacking process from seismic explora

1978-03-03

1980-12-23

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 53, 367 63, 364421, G01V 136

Patent

active

042414296

ABSTRACT:
In seismic exploration, linear, multiple fold, common depth point sets of seismograms with three dimensional reflection geometry are used to determine the dip and strike of the subsurface reflecting interfaces and the average velocity of the path of the seismic energy to the reflecting interface. The reflections in each set appear with time differences on a hyperbola with trace spacings determined by the source receiver coordinate distance along the lines of exploration. The offset of the apex of this hyperbola is determined from a normal move-out velocity search of the type performed on two dimensional CDP sets. This search identifies the correct stacking velocity and hyperbola offset which are used to determine dip, strike and average velocity.

REFERENCES:
patent: 3417370 (1968-12-01), Brey
patent: 3696331 (1972-10-01), Guinzy et al.

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