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US 6,671,223 B2Granted
Control devices for controlling the position of a marine seismic streamer
AssigneeWesternGeco L.L.C.
InventorSimon Hastings Bittleston
Life of this patent
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Abstract
A control device or “bird” for controlling the position of a marine seismic streamer is provided with an elongate, partly flexible body which is designed to be electrically and mechanically connected in series with a streamer. In its preferred form, the bird has two opposed wings which are independently controllable in order to control the streamer's lateral position as well as its depth.
Claims29
A control device for controlling the position of a marine seismic streamer, the device comprising:
- a body mechanically adapted to be connected in series between two adjacent sections of the streamer;
- sensor means in the body for determining its angular position in a plane approximately perpendicular to the longitudinal axis of the streamer;
- two opposed control surfaces projecting outwardly form the body, each control surface being rotatable about an axis which extends transversely of the streamer;
- and
- control means responsive to control signals and the sensor means for independently adjusting the respective angular positions of said two control surfaces so as to control the lateral position of the streamer as well as its depth.
2 more elements
A control device for controlling the position of a marine seismic streamer, the device comprising:
- a body mechanically adapted to be coupled to the streamer;
- two opposed control surfaces projecting outwardly form the body, each control surface being rotatable about an axis which extends transversely of the streamer;
- and
- control means responsive to control signals for independently adjusting the respective angular positions of said control surfaces so as to control the lateral position of the streamer as well as the depth.
1 more element
Dependencies are inferred from the claim text.