Method for handling rough sea and irregular recording conditions in multi-sensor towed streamer data

摘要

Rough sea elevation is estimated from a high-frequency portion of recorded pressure data and recorded vertical velocity component data. Generalized deghosting and datuming operators are constructed, which take into account the estimated rough sea elevation and irregular recording depth conditions. A low-frequency portion of the recorded pressure data is decomposed into up-going and down-going wavefields on a horizontal reference plane, using the generalized datuming and deghosting operators. A low-frequency portion of the vertical velocity component data is reconstructed from the decomposed up-going and down-going wavefields on the horizontal reference plane, using the generalized datuming and deghosting operators.