Invention Grant
- Patent Title: Holding back elongate elements during subsea operations
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Application No.: US15777202Application Date: 2016-11-16
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Publication No.: US10527196B2Publication Date: 2020-01-07
- Inventor: Olivier Lodeho , Johan Janot , Vincent Loentgen
- Applicant: Acergy France SAS
- Applicant Address: FR Suresnes
- Assignee: Acergy France SAS
- Current Assignee: Acergy France SAS
- Current Assignee Address: FR Suresnes
- Agency: Levy & Grandinetti
- Priority: GB1520514.9 20151120
- International Application: PCT/IB2016/001803 WO 20161116
- International Announcement: WO2017/085559 WO 20170526
- Main IPC: F16L1/19
- IPC: F16L1/19 ; F16L1/235 ; F16L9/04 ; F16L1/20 ; B63B35/03 ; F16L59/14

Abstract:
A subsea pipeline coated with a thermally insulating coating has a radially outer surface shaped to define external hold-back formations. In a J-lay operation, the weight load of a pipeline catenary is held back using a complementary bushing or clamp of an installation vessel engaged with the hold-back formations. The weight load is transferred from the catenary to the bushing or clamp by shear forces acting through the coating. The coating extends continuously along the pipe and is interposed between the hold-back formations and the underlying pipe. The hold-back formations may be integral with the coating.
Public/Granted literature
- US20180356003A1 Holding Back Elongate Elements During Subsea Operations Public/Granted day:2018-12-13
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