Title: Seismic streamer system and method
Application Number: 200610077091 Application Date: 2006.04.26
Publication Number: 1952691 Publication Date: 2007.04.25
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01V1/22
Applicant(s) Name: Westerngeco Seismic Holdings Address:
Inventor(s) Name: Singh Rohitashva;Robertsson Johan O.;Kristiansen O
Attorney & Agent: qinchen
Abstract:
    A seismic streamer system for acquiring seismic data includes a plurality of first cable sections each employing a first sensor configuration therein, and at least one second cable section operatively connected to one or more of the first cable sections and employing a second sensor configuration therein. In various embodiments of the streamer system, one or more of the second cable sections are sparsely integrated into a streamer, a streamer array, and/or a seismic spread. The first sensor configuration may, e.g., include a conventional hydrophone distribution, and the second sensor configuration may, e.g., include multicomponent sensors such as at least one of a particle velocity sensor, a pressure gradient sensor, an accelerometer, and a combination thereof. The present invention is useful for attenuating noise in the measured seismic data as well as deghosting the data. A particular deghosting process includes decomposing the up- and down-going parts of the vertical component of particle velocity associated with the acoustic wave reflections from the strata.
Time: 5
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