Zhang X.-Y.,China University of Mining and Technology |
Zhang X.-Y.,NOOC EnerTech Drilling & Production Co. |
Pan D.-M.,China University of Mining and Technology |
Shi W.-Y.,NOOC EnerTech Drilling & Production Co. |
And 3 more authors.
Applied Geophysics | Year: 2015
Currently, the deghosting of towed streamer seismic data assumes a flat sea level and a sea-surface reflection coefficient of −1; this decreases the precision of deghosting. A new method that considers the rough sea surface is proposed to suppress ghost reflections. The proposed deghosting method obtains the rough sea surface reflection coefficient using Gaussian statistics, and calculates the optimized deghosting operator in the τ/p domain. The proposed method is closer to the actual sea conditions, offers an improved deghosting operator, removes the ghost reflections from marine towed seismic data, widens the bandwidth and restores the low-frequency information, and finally improves the signal-tonoise ratio and resolution of the seismic data. © 2015, Editorial Office of Applied Geophysics and Springer-Verlag Berlin Heidelberg. Source