Volume 32 Number 2
  • E-ISSN: 1365-2478



The use of very long streamers in marine seismic surveys makes the response offset dependent. Line equalization networks are used to balance this effect.

In this paper the response of the transformerless streamer system driving a charge amplifier is analyzed. Examples are given for a seismic cable 2500 m long, showing that the delay and the reduction in amplitude of the streamer impulse response in the absence of leakage are of the order of 1 ms and 0.6 dB, respectively. This means that the line equalization network currently used with the transformerless streamer system is not needed. We have also demonstrated that the presence of leakage resistance across the hydrophone group render the sensitivity of the transformerless streamer system offset dependent.


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  1. Safar, M. H. and Hosken, J. W. J.1980, On the response of marine seismic streamer systems, Geophysical Prospecting28, 513–530.
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  • Article Type: Research Article
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