Invention Grant
- Patent Title: Methods and associated apparatus of constructing and installing rigid riser structures
- Patent Title (中): 构造和安装刚性立管结构的方法和相关设备
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Application No.: US13129053Application Date: 2009-11-11
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Publication No.: US08439248B2Publication Date: 2013-05-14
- Inventor: Jean-Pierre Branchut
- Applicant: Jean-Pierre Branchut
- Applicant Address: US TX Houston
- Assignee: Subsea 7 (US) LLC
- Current Assignee: Subsea 7 (US) LLC
- Current Assignee Address: US TX Houston
- Agency: Levy & Grandinetti
- Priority: GB0900101.7 20090107
- International Application: PCT/GB2009/051514 WO 20091111
- International Announcement: WO2010/055334 WO 20100520
- Main IPC: B23K31/02
- IPC: B23K31/02 ; F16L1/00
Abstract:
Disclosed is a method of fabricating and installing a riser tower structure, preferably in a welding chamber, and a welding chamber suitable for the method. The method includes fabricating sections of the riser tower structure at a site remote from the site of installation; transporting the sections of the riser tower structure to within the vicinity of the installation site; and assembling together the sections of the riser tower structure in the vicinity of the installation site. The welding chamber includes a plurality of guide means, each providing a guide for one of the elongate elements of the riser tower structure, and floats on the sea surface when in use.
Public/Granted literature
- US20110271508A1 METHODS AND ASSOCIATED APPARATUS OF CONSTRUCTING AND INSTALLING RIGID RISER STRUCTURES Public/Granted day:2011-11-10
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