Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1988-12-05
1991-10-15
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 20, 34087014, G01V 122
Patent
active
050580809
ABSTRACT:
In a marine seismic data acquisition system, a plurality of seismic data transmission paths are utilized to conduct seismic data to a central recording unit from seismic data acquisition modules positioned along the length of cable. Signals from a plurality of data acquisition modules are applied to each of the transmission paths. Data acquisition modules which apply seismic signals to a given transmission path may be spaced and substantially uniform distances along the length of the cable and may be interspersed with data acquisition modules which apply seismic data to each of the other transmission paths. The operation of the data acquisition modules is synchronized by means of a signal transmitted continually from a central recording unit. Each section of the cable includes a plurality of remote units distributed along the cable section for detecting seismic signal. Each section includes a data acquisition module which receives command signals from a central recording unit and which receives seismic data signals from the remote units and transmits seismic data signals to the central recording unit.
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Amerine Marvin K.
Chien Loring C.
Siems Lee E.
Vorheier William P.
Lobo Ian J.
Thigpen E. Eugene
Western Atlas International Inc.
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