Method and system for increasing fold to streamer length ratio

Details Method and system for increasing fold to streamer length ratio Method and system for increasing fold to streamer length ratio

1996-10-29

1998-06-02

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 20, 367 56, 181110, G01V 138, G01V 136

Patent

active

057611521

ABSTRACT:
A method and system are provided for use in marine seismic data surveys to increase fold and offset without increasing streamer length or drag on the streamer boat. Generally the method comprises the use of a second source boat positioned in the steamer path and firing the second source at a time before the recording of information from the first source is finished. By positioning the second source about one streamer length in front of the closest hydrophone, the fold is increased by two for the same length streamer.

REFERENCES:
patent: 4914636 (1990-04-01), Garotta
patent: 4970696 (1990-11-01), Crews et al.
patent: 5424999 (1995-06-01), Manin

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