Wavelet Stretch Compensation Overview

Process name “Stretcomp”

Corrects for wavelet stretch on the far offset traces of NMO corrected CDP gathers. Applying NMO correction to CDP gathers causes the seismic wavelet to stretch at shallow times and large offsets. Also wavelet stretch can occur on any pre-stack dataset with increasing offset and time. Using small windows, this tool moves down in time and applies a stretch correction filter and outputs CDP gathers with stretch removed.

By Removing the stretch the processor gets more seismic events visible on the stack along with higher frequency.