Physical seismic modeling of sand-filled channels

Donald C. Lawton, Scott P. Cheadle, Eric V. Gallant, Malcolm B. Bertram

Acoustic seismic reflection data have been obtained over a physical model of a channel system typical of those found in the subsurface of southern Alberta. The model is constructed from steel and plexiglas with plaster modeling a low-velocity channel-sand fill. A zero-offset 3-D survey has been recorded over the model for use in 3-D acquisition design and migration tests for stratigraphic targets. One 2-D line of multichannel data has also been collected and an amplitude decrease with offset is observed in reflections from the top and base of the channel.