Dynamically controlled foil systems and methods
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United States of America Patent
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Nov 26, 2019
Grant Date -
Apr 20, 2017
app pub date -
Oct 17, 2016
filing date -
Oct 15, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Foil systems for steering source and receiver arrangements for gathering seismic data are connected to buoys supporting seismic sources and receivers. Each foil system includes a positive buoyancy device, a pair of control cables, a plurality of foil sections, and an actuator. The pair of control cables may be attached to the buoyancy device and extend downward from the buoyancy device to a submerged end. The plurality of foil sections may be disposed along the control cables between the buoyancy device and the submerged end. The actuator may be configured to adjust attack angles of the foil sections by changing a tension in one or both of the control cables. Steering control is provided through a number of modes described by data distributed through a control system in communication with the foil systems.
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