Seismic reservoir monitoring has considerable unrealised potential if higher repeatability can be obtained. Today's towed streamer systems impose basic limitations on repeatability, as streamer feather is difficult to repeat and tow noise must be kept low. New streamer technology allows for horizontal steering of the streamers, which makes repeated streamer positions possible.During the 2001 summer season, time-lapse data were acquired over three producing fields in the Norwegian Sea using the new technology. We show in this paper some results of these surveys.
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