Amplitude-preserved multiple-suppression.
Left panel is an unprocessed Mobil CMP gather from the
Viking Graben, offshore Norway.
Center panel is our multiple suppressed version.
Right panel is the estimated and removed multiples.
Note that the top reservoir reflection at 2.1 sec has
the correct AVO response (increasing with offset), the
lower reservoir at 2.6 sec the correct but different AVO
response (absolute amplitude decreasing with offset),
and the remaining non-hydrocarbon-bearing reflections
have fairly constant AVO, all as expected from well logs
near this location.
Also note that the estimated multiples contain the
characteristic radial interference pattern controlled
by water depth and source length, whereas the estimated
primary reflections do not contain this interference pattern,
as expected. (Lumley, Nichols, & Rekdal, SEG 1994).
Copyright © 1994 by David E. Lumley; david@sep.stanford.edu
last updated