Active separation tracking and positioning system for towed seismic arrays

摘要

A seismic streamer array tracking and positioning system comprises a towing vessel (10) for towing a seismic array and an array comprising a plurality of seismic streamers (12). An active streamer positioning device (ASPD) (18) is attached to at least one seismic streamer for positioning the seismic streamer relative to other seismic streamers within the array. The array has respective controller means for issuing respective positioning commands to ASPD's to compensate for manoeuvrability influences on the positioning of the streamers and the array geometry.