Means and method for dynamically locating positions on a marine

Details Means and method for dynamically locating positions on a marine Means and method for dynamically locating positions on a marine

1991-10-21

1992-11-24

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

267 23, 267 41, 364421, G01V 128, G01V 138

Patent

active

051669056

ABSTRACT:
A marine seismic system includes a streamer cable which is towed by a vessel in a body of water. The streamer cable includes a plurality of hydrophones located at predetermined positions in the streamer cable which receives vibrations resulting from a seismic event occurring in the water, and provides signals corresponding to the received vibrations. The streamer cable also includes a plurality of receivers located at predetermined position in the streamer cable. Each receiver receives acoustical signals provided by acoustical sources and provide electrical signals corresponding to the received acoustical signals. A seismic event source provides a seismic event in the water. A plurality of acoustical sources cooperating with the seismic event source also provides encoded acoustical signals into the water when the seismic event source provides a seismic event. Seismic data processing apparatus processes the signals from the hydrophones and the receivers to provide seismic data of an earth formation below the water.

REFERENCES:
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patent: 4845686 (1991-07-01), Broc
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patent: 4992990 (1991-02-01), Langeland et al.
Cenningham, A. B., "Some Alternate Vibrates Signals"; Dec. 1979, Gegrbysics, vol. 44, #12, pp. 1901-1914.

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