Invention Grant
- Patent Title: Method and apparatus for at sea pipe abandonment and recovery
- Patent Title (中): 海管放弃和回收的方法和装置
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Application No.: US13062928Application Date: 2009-09-01
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Publication No.: US08641323B2Publication Date: 2014-02-04
- Inventor: Jonathan Richard Tame
- Applicant: Jonathan Richard Tame
- Applicant Address: GB Westhill
- Assignee: Subsea 7 Limited
- Current Assignee: Subsea 7 Limited
- Current Assignee Address: GB Westhill
- Agency: Levy & Grandinetti
- Priority: GB0816390.9 20080908
- International Application: PCT/EP2009/061258 WO 20090901
- International Announcement: WO2010/026132 WO 20100311
- Main IPC: F16L1/12
- IPC: F16L1/12 ; F16L27/00

Abstract:
A method of positioning on the sea floor, from a floating vessel, an unlaid end portion of a pipe that is being laid from its other end on the sea floor is disclosed. The method includes lowering the unlaid end portion of the pipe to a lowered position above the sea floor. Transfer of the load of the unlaid end portion of the pipe occurs from the lowering device to a line for suspending the unlaid end portion of the pipe. Lowering the line for suspending and the unlaid end portion of the pipe occurs. There is disclosed a corresponding method of recovery as well as associated apparatus. A method for effecting a subsea connection between one line and an object suspended below the surface of the sea by another line and associated apparatus are disclosed.
Public/Granted literature
- US20110262229A1 METHOD AND APPARATUS FOR AT SEA PIPE ABANDONMENT AND RECOVERY Public/Granted day:2011-10-27
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