Method of cancelling turbulence noise in a fluid-filled seismic streamer

Turbulence (8) in a boundary layer on the outside of the streamer skin (3) in a seismic streamer results in the recorded signals from the hydrophones (2) in the seismic streamer being contaminated with noise. This is due to the fact that the turbulence noise is transmitted to the hydrophone's n...

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Hauptverfasser:	BJELLAND, CATO, LANGELAND, JAN-AGE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
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creator	BJELLAND, CATO LANGELAND, JAN-AGE
description	Turbulence (8) in a boundary layer on the outside of the streamer skin (3) in a seismic streamer results in the recorded signals from the hydrophones (2) in the seismic streamer being contaminated with noise. This is due to the fact that the turbulence noise is transmitted to the hydrophone's near field as an acoustic signal or via shear waves in the fluid filling (6). By deriving a transfer function for the transmission of the turbulence-generated noise and using of the transfer function on the recorded signal from the hydrophone (2), the turbulence-generated noise overlying a recorded signal can be cancelled.
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subjects	DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING
title	Method of cancelling turbulence noise in a fluid-filled seismic streamer
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