Method for determining the far field signature of a marine seism

Details Method for determining the far field signature of a marine seism Method for determining the far field signature of a marine seism

1984-06-15

1987-03-03

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 15, 181110, 181118, G01V 138

Patent

active

046480803

ABSTRACT:
A method for obtaining far-field signatures of marine source arrays by the downward continuation of near-field data recorded along a short signature streamer of closely spaced hydrophones, located beneath the array. This method has several advantages over conventional far-field signature measurement techniques. The technique can be used in water depths as shallow as 50 meters, it does not require any precise knowledge of the array geometry or of the location of the recording sensors, and it may be used on a shot-by-shot basis to obtain signatures for use in a shot-by-shot signature deconvolution.

REFERENCES:
patent: 4146870 (1979-03-01), Ruehle
patent: 4476553 (1984-10-01), Ziolkowski et al.
Ziolkowski et al., The Signature of an Air Gun Array: Computation from Near-Field Measurements Including Interactions, Oct. 1982, pp. 1413-1421.
Berkhout, Seismic Migration Imaging of Acoustic Energy by Wave Field Extrapolation, 1980, pp. 125-126.

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