Submerged marine streamer locator

Details Submerged marine streamer locator Submerged marine streamer locator

1983-03-18

1985-11-26

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

367 6, 367130, G01S 1506, G01V 138

Patent

active

045557799

ABSTRACT:
Method and means are provided for determining the position of a submerged marine streamer towed behind an exploration vessel. An array of at least three transponders secured to the ocean floor generate distinguishable acoustic pulses upon a command signal from the ship. These signals are received by hydrophones housed in the streamer and by the ship. The distance to each hydrophone may be triangulated from the data generated including accounting for changes in velocity between the vessel and the seismic streamer and the bottom transponders during the taking of such data.

REFERENCES:
patent: 3840845 (1974-10-01), Brown
patent: 3860900 (1975-01-01), Scudder
patent: 4087780 (1978-05-01), Itria et al.
patent: 4097837 (1978-06-01), Cyr
patent: 4110726 (1978-08-01), Dorrance et al.
patent: 4229809 (1980-10-01), Schwalbe
"CW Beacon System for Hydrophone Motion Determination", Porter et al., Journal of Acoust. Soc. Am., vol. 53, #6, 1973.
"Dynamic Positioning System for . . . ", by H. W. Ragland, Honeywell Inc., pp. 1145-1161.

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