Patent ID: 6672422
Filing Date: 2004-01-06
Classification: G01V

Abstract:
Apparatus for use in seismic data acquisition in a land or transition zone environment, the apparatus comprising:at least one seismic data cable which, in use, is laid out along a line of an area to be seismically surveyed, said cable having a plurality of spaced apart connection nodes therealong; and a plurality of sensor strings connected to said connection nodes, each sensor string comprising a plurality of seismic sensors connected in series and each adapted to produce a respective output signal representative of a seismic signal received thereby; wherein each of the plurality of sensor strings is adapted to permit the sensors thereof to be laid out in at least two sets of series-connected groups, each group containing a plurality of the sensors and being adapted to transmit at least one seismic signal to a connection node, and the sets of groups being disposed along respective spaced apart lines generally parallel tote line along which the seismic data cable is laid.