Modified residual migration of seismic data

Details Modified residual migration of seismic data Modified residual migration of seismic data

1991-07-31

1993-08-03

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 50, G01V 136

Patent

active

052335690

ABSTRACT:
A method is disclosed for a two-step residual migration of dipping seismic events. A first migration pass is done using a fully-vertically-variable but laterally-invariable migration velocity that is selected from a first-stage mmigration velocity function. The first-stage velocity function approaches, but is less than, the velocity minima as determined by scanning the true velocity field in an area of interest. The second migration pass is performed with the aid of a dip-dependent residual migration velocity. The residual migration velocity is defined as the square root of the difference between the true migration velocity and a second migration velocity appropriate to the migrated time following the first migration pass.

REFERENCES:
patent: 4745585 (1988-05-01), Larner
patent: 4888742 (1989-12-01), Beasley
Yilmaz, O., "Residual Migration," in Seismic Data Processing, (Tulsa, SEG) 1987, pp. 300-301, & 515-516.
Rothman, D. H., Levin, A. S., Rocca, F., Residual Migration: Applications and Limitations, 53rd Annual International SEG Meeting, Sep. 13, 1983, Las Vegas, Nev., Geophysics vol.. 50, N.1, pp. 110-126.

Affiliated with

Also associated with

Rating

Modified residual migration of seismic data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modified residual migration of seismic data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modified residual migration of seismic data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2277239