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SECTION MIGRATION, BEFORE STACK, AFTER STACK, OR INBETWEEN *
Author(s) -
SATTLEGGER J. W.,
STILLER P. K.
Publication year - 1974
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1974.tb00087.x
Subject(s) - stack (abstract data type) , section (typography) , refraction , geology , noise (video) , statics , computer science , optics , physics , artificial intelligence , image (mathematics) , classical mechanics , programming language , operating system
A bstract Section migration after stack has been widely accepted by the industry. From a theoretical point of view, section migration before stack should provide superior results, the improvement warranting the drastically increased cost is not realized in most cases. There are a number of reasons that explain the discrepancy between actual and theoretically expected quality: Long period statics, refraction of rays, two‐dimensional treatment of an actually three‐dimensional problem. The section migration package subject to this paper allows (i) to take refraction into account, (ii) to discriminate against noise with a variety of statistical and geometrical criteria, (iii) to adapt processing time to problem complexity by a special process called SEMI‐STACK. A number of examples will demonstrate the effects of section migration.