Patents Represented by Attorney James McAlleenan

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  • Multiple attenuation method
    Patent number: 7710821
    Abstract: A method is described for reducing multiples in marine seismic data using at least two sets of signals representing seismic energy reflected and/or refracted from an earth structure using a plurality of seismic receivers located in a body of water with the two sets differing in the traveltime of signals through the body of water, separating said signals into up- and down-going wavefields and combining the two sets to remove multiples.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: May 4, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Johan Robertsson, Clement Kostov