Schlumberger

Anomalous Amplitude Attenuation (AAA)

Remove unwanted noise while preserving the signal and enhancing your seismic image

Many sources of noise contaminate seismic recordings, degrading image quality, hampering interpretation, and distorting the seismic signal prior to inversion and other reservoir definition stages.

The anomalous amplitude attenuation workflow addresses a range of different noise modes, including marine swell noise, seismic interference, biological noise, ground roll, air blast, wind noise, near-surface scatterers, and cultural noise. It is applicable to all types of seismic data, whether land or marine, legacy or new acquisition.

Sophisticated time and space spectral analyses are used to identify and attenuate anomalous noise zones within the seismic record. The data-adaptive process leaves the seismic record untouched in areas where noise contamination is small, maintaining high signal fidelity.

The AAA workflow has been successfully used worldwide to enable completion of projects on schedule and avoid downtime due to weather, reshoots, or other delays.

Request More Information
WesternGeco