Invention Grant
- Patent Title: Method and vessel for laying a pipeline
- Patent Title (中): 铺设管道的方法和船舶
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Application No.: US14363529Application Date: 2012-12-07
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Publication No.: US09500301B2Publication Date: 2016-11-22
- Inventor: Stefano Bianchi , Roberto Bruschi , Diego Lazzarin
- Applicant: SAIPEM S.p.A.
- Applicant Address: IT Milan
- Assignee: SAIPEM S.P.A.
- Current Assignee: SAIPEM S.P.A.
- Current Assignee Address: IT Milan
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: GB1121118.2 20111208
- International Application: PCT/EP2012/074805 WO 20121207
- International Announcement: WO2013/083780 WO 20130613
- Main IPC: F16L1/18
- IPC: F16L1/18 ; B63B35/03 ; F16L1/225

Abstract:
A stinger extends away from an end of a vessel, and a pipeline passes over the stinger as the pipeline is laid from the vessel. The inclination of the pipeline increases as the pipeline passes along the stinger and after leaving the stinger until the pipeline reaches an inflection point beyond the end of the stinger at which inclination is at a maximum. Inclination of the pipeline thereafter reduces until the pipeline touches down on the seabed. A method of S-laying the pipeline includes providing guides on the stinger that limit lateral movement of the pipeline relative to the stinger and moving the vessel and the stinger during S-laying to an orientation in which the longitudinal axis of the stinger is inclined to the path of the pipeline just laid. The vessel and the stinger are rotated about a vertical axis passing through or adjacent to the inflection point.
Public/Granted literature
- US20140321920A1 METHOD AND VESSEL FOR LAYING A PIPELINE Public/Granted day:2014-10-30
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