Patent ID: 6704244
Filing Date: 2004-03-09
Classification: G01V

Abstract:
A method for marine seismic surveying, comprising:determining an upgoing component and a downgoing component of a seismic wavefield at a first location on a seafloor; determining, for a first seismic streamer location substantially above said first seafloor location, the seismic wavefield of which an upgoing component and a downgoing component is determined at said first seafloor location; and utilizing the determined upgoing component and downgoing component of a seismic wavefield at said first location on a seafloor and the determined seismic wavefield for said first streamer location to determine a separation operator, which separation operator when applied to the determined seismic wavefield for the first streamer location provides an estimate of at least one of an upgoing wavefield component and a downgoing wavefield component of said determined seismic wavefield for said first streamer location.