Wave-Height Corrected Seismic

Ideally, towed marine seismic data would always be acquired in flat-calm seas. Usually, however, this is not the case, and the rough sea surface introduces perturbations in the recorded seismic data from both the source and receiver side.

WesternGeco can now correct for these perturbations using a combination of newly developed data processing technology and unique Q-Marine measurements.

In the field, finely sampled single-sensor streamers allow for accurate pressure gradient measurements from ultra-low frequency (<0.5Hz) recorded data, whilst two antennas on each gun float provide high accuracy RTK-GPS x, y and z measurements for positioning and elevation.

New data processing technology allows us to invert the pressure measurements and apply wave-height corrections, resulting in improved reflector continuity, improved wavelet stability and, most significantly, improved repeatability between time lapse (4D) surveys.

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