Invention Grant
- Patent Title: Unbonded flexible pipe with an optical fiber containing layer
- Patent Title (中): 无粘合柔性管,带有光纤层
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Application No.: US14384238Application Date: 2013-03-12
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Publication No.: US09587773B2Publication Date: 2017-03-07
- Inventor: Alexandros Nokkentved , Bo Asp Moller Andersen , Niels Juul , Nicky Weppenaar , Kristian Glejbol
- Applicant: National Oilwell Varco Denmark I/S
- Applicant Address: DK Brondby
- Assignee: NATIONAL OILWELL VARCO DENMARK I/S
- Current Assignee: NATIONAL OILWELL VARCO DENMARK I/S
- Current Assignee Address: DK Brondby
- Agency: Pearne & Gordon LLP
- Priority: DK201200185 20120313; DK201270409 20120706; DK201270803 20121220
- International Application: PCT/DK2013/050064 WO 20130312
- International Announcement: WO2013/135244 WO 20130919
- Main IPC: F16L9/00
- IPC: F16L9/00 ; F16L11/12 ; F16L11/08 ; G01M3/38 ; F16L55/00

Abstract:
A unbonded flexible pipe with a length and a longitudinal axis is described. The pipe comprises an innermost sealing sheath defining a bore, at least one armor layer surrounding the inner sealing sheath and at least one optical fiber containing layer, wherein the optical fiber containing layer comprises at least one tape and at least one optical fiber arranged with a length of at least about 3 times the length of the flexible pipe. In an embodiment the optical fiber is incorporated into the at least one tape of said optical fiber containing layer to provide an integrated fiber tape where advantageously the optical fiber is arranged with S-shaped folds.
Public/Granted literature
- US20150059904A1 UNBONDED FLEXIBLE PIPE WITH AN OPTICAL FIBER CONTAINING LAYER Public/Granted day:2015-03-05
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