Patent ID: 9395458
Filing Date: 2016-07-19
CPC Classification: G01V

Claim Text:
1. A device comprising: a housing connectable in line between two sections of a marine seismic streamer; first and second control surfaces that project laterally outward from the housing and that are independently rotatable with respect to each other so that, in a first configuration, an angle of inclination of a lateral surface of each of the first and second control surfaces is different, and, in a second configuration, an angle of inclination of a lateral surface of each of the first and second control surfaces is configured such that a same lift force is applied on each of the control surfaces; and a control system in the housing responsive to control signals that selectively adjust respective angles of inclination of the lateral surfaces of the first and second control surfaces to have the first configuration, which causes the control surfaces to jointly operate to produce a rolling force on the housing, and the second configuration, which causes the control surfaces to jointly operate to produce a force to adjust lateral position of the streamer without producing a rolling force on the housing.