Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Offshore prospecting
Patent
1992-07-08
1993-10-05
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Offshore prospecting
367 45, G01V 138, G01V 136
Patent
active
052511839
ABSTRACT:
A method and apparatus for attenuating bulge wave noise from data recorded by seismic streamers is provided. The apparatus includes a marine seismic streamer having a seismic detector and an accelerometer. The accelerometer is secured between the lead-in section and the seismic detector. Intra-shot and inter-shot accelerometer and seismic detector signals are recorded. The method utilizes inter-shot and an intra-shot adaptive processing loops. The inter-shot adaptive processing loop derives inter-shot complex weights from inter-shot accelerometer signals and inter-shot seismic detector signals. The intra-shot adaptive processing loop models bulge wave noise in the intra-shot seismic detector signals by combining the inter-shot complex weights with intra-shot accelerometer signals. Bulge wave noise attenuation is achieved by subtracting the intra-shot bulge wave noise model from the intra-shot seismic detector signals.
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McConnell Joseph R.
Wood George
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