Unwrapping instantaneous phase to generate a relative geologic time volume

This presentation has three goals. The first is to introduce the Relative Geologic Time Volume (RGT Volume). This volume stores a detailed seismic interpretation using geologic time estimates for every seismic sample point. The second goal is to briefly provide some of the advantages of using a RGT Volume to store and access seismic interpretation. For example, by using such a volume, horizons can be selected using a spatial reference (i.e., inline, crossline, travel time position), such as dragging a mouse over an inline, crossline or time slice. The third goal is to describe how such a volume can be generated by unwrapping instantaneous phase. The unwrapping procedure assumes that a surface of constant instantaneous phase equals a seismic horizon, which in turn equals a constant geologic time.