Ultrasonic modeling of borehole seismic surveys

Robert R. Stewart, Scott P. Cheadle

Ultrasonic physical model data were acquired in simulated vertical seismic profile (VSP) and crosswell (XT) geometries. Various targets (teflon and aluminum cylinders, plexiglas and anisotropic phenolic sheets) have been used. Preliminary identification of wavetypes show direct arrivals, primary and multiple reflections, and mode conversions. These physical model data are useful for testing processing and numerical modeling algorithms.