Improvements in Constructing Seismic Image Using CDR
, by Boris R. Zavalishin
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Translators note:
In this paper, Dr. Zavalishin develops the ideas that were previously
discussed in a paper in SEP-26: CDR- A Russian Form of Pre-Stack
Migration. Since Soviet reflection seismology has developed in isolation
from its Western counterpart, it should not be surprising that the same
vocabulary is not used, nor that there are Soviet terms that have no
direct English equivalent. Chief amoung these terms is CDR (Controlled
Directional Reception). (Be sure to watch for the occasional appearance
of old familiar CDP!) For the purposes of this paper, a CDR gather can
be considered to be the same as a transposed slant-stack section, except
that the vertical axis is delta t rather than p(delta t/delta x). I will
attempt to explain some of the other terms as they crop up in the article.
STANFORD