Invention Grant
- Patent Title: Abandonment and recovery system
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Application No.: US13980767Application Date: 2012-03-05
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Publication No.: US09671042B2Publication Date: 2017-06-06
- Inventor: Cédric Mouchel , René Maloberti
- Applicant: Cédric Mouchel , René Maloberti
- Applicant Address: FR
- Assignee: TECHNIP FRANCE
- Current Assignee: TECHNIP FRANCE
- Current Assignee Address: FR
- Agency: Ostrolenk Faber LLP
- Priority: GB1103746.2 20110307
- International Application: PCT/IB2012/000639 WO 20120305
- International Announcement: WO2012/120381 WO 20120913
- Main IPC: F16L1/16
- IPC: F16L1/16 ; F16L1/19

Abstract:
A method of abandoning a pipeline being laid by a pipelaying vessel, wherein said pipeline is being held by a lay tower comprising a pipelaying and tensioning arrangement, comprising at least the steps of: (a) linking the end of the pipeline (103) to a flexible tubular handling conduit (102); (b) separately linking the pipeline to a lifting wire (104); and (c] lowering the pipeline towards the sea floor. In this way, the present invention, using the load capacity of both a flexible tubular handling conduit and a lifting wire for at least some of the pipeline lowering, is able to operate either more safely at existing depths, or at even greater depths to an ocean floor than before, or both.
Public/Granted literature
- US20130309018A1 ABANDONMENT AND RECOVERY SYSTEM Public/Granted day:2013-11-21
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