Seismic data acquisition system using acquisition stations...

Details Seismic data acquisition system using acquisition stations... Seismic data acquisition system using acquisition stations...

2006-03-21

2006-03-21

Keith, Jack (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

C367S016000, C181S110000

Reexamination Certificate

active

07016260

ABSTRACT:
The invention is a system designed for acquisition of seismic data by means of acquisition stations set on water bottom of a water body. The system comprises acquisition stations (DSAU) combining a streamlined boom suited to penetrate the bottom and thus couple seismic receivers with the underlying formation, a sealed body for electronic data acquisition and communication modules. These acquisition stations (DSAU) are placed in the water and drop to the bottom under the effect of gravity. Relay buoys (RCB) are positioned at the surface, each with a GPS positioning module, a radio link with a central station (CCRU), on a ship for example, and modules providing acoustic communication with bottom acquisition stations (DSAU), which are used to determine the position of the stations in relation to the relay buoys and to exchange control data and seismic data (good running order data or possibly seismic traces acquired if the conditions lend themselves thereto) to provide seismic prospecting or monitoring of an underground formation.

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Bibee et al “Seismic Penetrator Technology For Use In Shallow Water Seismoacoustics” Oceans 93, Engineering In Harmony With Ocean, Proceedings Victoria BC, Canada Oct. 18-21, 1993, pp. 1450-1454, XP010117379 Figures 1, 2.

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