Application of ghost removal for broadband processing on various marine recording configurations.

One of the main limiting factors for exploration in marine environment is the ghost reflections. Regardless of the “designed” source signature, the presence of air/water contact introduces “ghost” reflections, which attenuate certain frequencies and distort the designed source signature. Ghost reflections exhibit themselves as notches in the frequency domain and are responsible for attenuating the low frequency component of the spectrum. We demonstrate the applicability of a ghost removal method and its impact on resolution on various acquisition configurations, including over/under, slanted and traditional streamer seismic data. We will demonstrate the impact of deghosting on signal analysis and imaging steps.