The Stolk operator in GPSPI migration

Chad M. Hogan, Gary F. Margrave

ABSTRACT

The Stolk operator is introduced as a replacement for the square-root operator found in traditional GPSPI migration. This operator allows for a transverse (that is, horizontal) slowness gradient, instead of assuming a fully homogenous output location as is the case with GPSPI migration. Some differences in image quality were found for both impulse-response type tests and for Marmousi migration tests. The observed improvements in the image quality are minor, while the computational time costs are relatively extremely high.

View full article as PDF (1.35 Mb)