Ray Tracer Features

Raytracer is a ray tracing program for generating travel times for the PSDM algorithm. It advances the individual rays using a fourth order Runga-Kutta solution and supports three methods for selecting the times, minimum time, minimum distance and maximum energy. Raytracer uses the wavefront reconstruction method to maintain accuracy as the rays move through the velocity model. It provides user control for interpolation and smoothing of the travel times, as well as for the density of recording locations. Virtually any size velocity model can be used since it does not need to fit into memory.

• Wave front reconstruction method to maintain accuracy and reduce shadow zones
• Ray propagation along wave front is controlled by user parameters.
• Statistical report to indicate relative travel time accuracies
• User can select and control turning waves.
• All travel times stored and interpolated as slowness to maintain accuracy and improve performance   with less dense tables
• Can output travel time tables at any inline/crossline increment
• Advanced velocity model compression, with model not required to fit into memory
• Travel times can be calculated on irregular spacing to allow greater density in areas of geologic   complexity.
• Migration can use multiple travel time files.