Dual Axis Geophones For Pressure/Velocity Sensing Streamers Forming a Triple Component Streamer
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United States of America Patent
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Issued Date -
Dec 22, 2011
app pub date -
Jun 16, 2011
filing date -
Jun 21, 2010
priority date (Note) -
Abandoned
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Abstract
A seismic streamer includes a sensor comprises an axially oriented body including a plurality of axially oriented channels arranged in opposing pairs; a plurality of hydrophones arranged in opposing pairs in the channels; a pair of orthogonally oriented acoustic particle motion sensors; and a tilt sensor adjacent or associated with the particle motion sensors. The streamer has a plurality of hydrophones, as previously described, aligned with a plurality of accelerometers which detect movement of the streamer in the horizontal and vertical directions, all coupled with a tilt sensor, so that the marine seismic system can detect whether a detected seismic signal is a reflection from a geologic structure beneath the streamer or a downward traveling reflection from the air/seawater interface.
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