Method and fairing to be attached to a cable of a seismic survey system for reducing drag and/or noise. The fairing includes a body having a hydrodynamic shape; a tail portion connected to the body; and a head portion connected to the body, opposite to the tail portion, and configured to be removabl
Method and fairing to be attached to a cable of a seismic survey system for reducing drag and/or noise. The fairing includes a body having a hydrodynamic shape; a tail portion connected to the body; and a head portion connected to the body, opposite to the tail portion, and configured to be removably clamped-on to the cable. The head portion, the body and the tail portion extend in this order along a traveling direction.
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1. A fairing to be attached to a cable of a seismic survey system, the fairing comprising: a body having a hydrodynamic shape;a tail portion connected to the body; anda head portion connected to the body, opposite to the tail portion, and configured to be removably clamped-on to the cable, the head
1. A fairing to be attached to a cable of a seismic survey system, the fairing comprising: a body having a hydrodynamic shape;a tail portion connected to the body; anda head portion connected to the body, opposite to the tail portion, and configured to be removably clamped-on to the cable, the head portion having first and second regions separated by a slot and the first and second regions are configured to partially wrap around the cable,wherein the head portion, the body and the tail portion extend in this order along a traveling direction, andwherein the first and second regions have first and second openings, respectively, that expose the cable and the first and second openings extend along a length of the head portion. 2. The fairing of claim 1, wherein the first and second openings are configured to receive the cable, and the first and second openings together with the slot are configured to extend from one side of the head portion to an opposite side of the head portion along an entire length of the head portion. 3. The fairing of claim 1, wherein the first and second regions are symmetrical. 4. The fairing of claim 1, wherein the first and second regions have cylindrical shapes. 5. The fairing of claim 1, wherein an internal diameter of the first and second regions is equal to a diameter of the cable. 6. The fairing of claim 1, wherein an internal diameter of the first and second regions is less than a diameter of the cable. 7. The fairing of claim 1, further comprising: grooves formed in an external surface of the body. 8. The fairing of claim 7, further comprising: a cover configured to cover the head portion, the cover having protuberances that fit into the grooves. 9. The fairing of claim 1, further comprising: a cover configured to cover the head portion. 10. The fairing of claim 9, wherein an external surface of the cover is flush with an external surface of the body. 11. The fairing of claim 9, wherein the cover is made of a soft material. 12. The fairing of claim 11, further comprising: a connecting mechanism configured to maintain the cover attached to the head portion. 13. The fairing of claim 1, wherein the head portion has a cylindrical shape with a single slot that is configured to receive the cable. 14. A fairing to be attached to a cable of a seismic survey system, the fairing comprising: a body having a hydrodynamic shape; anda head portion connected to the body and configured to be removable clamped-on to the cable, the head portion having first and second regions separated by a slot and the first and second regions are configured to partially wrap around the cable,wherein the head portion and the body are towed underwater during the seismic survey, andwherein the first and second regions have first and second openings, respectively, that expose the cable and the first and second openings extend along a length of the head portion. 15. A seismic survey system comprising: a cable configured to be towed underwater; anda fairing configured to be attached to the cable, wherein the fairing includes,a body having a hydrodynamic shape,a tail portion connected to the body, anda head portion connected to the body, opposite to the tail portion, and configured to be removable clamped-on to the cable, the head portion having first and second regions separated by a slot and the first and second regions are configured to partially wrap around the cable,wherein the first and second regions have first and second openings, respectively, that expose the cable and the first and second openings extend along a length of the head portion. 16. A method for attaching or removing a fairing from a cable, the method comprising: clamping-on a head portion of the fairing to the cable, wherein the head portion is connected to a body that has a hydrodynamic shape;towing the cable and the fairing underwater while performing a seismic survey;inserting the cable into an opening of the fairing so that the cable is substantially perpendicular to the fairing; androtating the cable or the fairing by about 90° to clamp the fairing to the cable. 17. The method of claim 16, wherein the opening splits the head portion into two regions having cylindrical shapes. 18. The method of claim 16, further comprising: attaching a cover over the head portion to reduce drag and noise. 19. The method of claim 16, further comprising: inserting the cable into a single slot present in the head portion of the fairing.
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이 특허에 인용된 특허 (14)
Hale Neville E. (Mississauga CAX), Fairing assembly for towed underwater cables.
Hodgson, Jan, Metal sheet having a microstructure relieved of notching, carrier body having a plurality of sheets, and exhaust system having the carrier body.
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