Controlled phase marine source subarray

Details Controlled phase marine source subarray Controlled phase marine source subarray

G - Physics

01

V

G01V 1/38 (2006.01) G01V 1/02 (2006.01)

Patent

CA 2076811

Controlled phase marine seismic subarray for use in a marine seismic array and methods far constructing such subarray are provided. A controlled phase marine seismic subarrays of the present invention are arranged to operate at a preselected depth and to provide generally downgoing (for angles of emergence from the array that are of interest) far-field pulses having phase spectra that match the phase spectrum of the vertically downgoing far-field pulse up to a ghost-notch frequency. The methods select the depth of operation and type of sources for the subarray, select a maximum number of identical elements and spacing based upon the highest incidence angle and frequency for which phase control is desired, and construct a plurality of parallel, linear; subarray.

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