An installation system of deepwater risers by an S-lay vessel |
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| Authors: | Meng-lan Duan Yi Wang Segen Estefen Ning He Li-na Li Bang-min Chen |
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| Institution: | b a School of Naval Architecture and Marine Engineering,Dalian University of Technology,Dalian 116024,China b Offshore Oil/Gas Research Center,China University of Petroleum,Beijing 102249,China c COPPE,Federal University of Rio de Janeiro,RJ 68501,Brazil d Design Division,CNOOC Engineering,Tianjin 300452,China |
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| Abstract: | Along with the consumption increase of the petroleum products, more countries have transferred their attentions to the offshore
fields, especially the deepwater oil and gas reserves. For deepwater exploitation, the risers must be installed to act as
the conduits connecting surface platforms to subsea facilities. In this paper, the typical risers sorted by different classes
are introduced, and the correspondent installation methods are presented. By investigating the recent projects performed in
the deepwater hot spots, and combining the challenges of HYSY201 for riser installation, a lifting device developed for assisting
riser installation is proposed and detailed to satisfy the installation of deepwater risers in the LW3-1 Gas Field of 1500
m in the South China Sea. Tests on both the functions and performances of such a new system exhibit the satisfaction of meeting
all challenging requirements of HYSY201 for application to riser installation in waters up to a depth of 3000 m in the South
China Sea. |
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| Keywords: | deepwater riser riser installation lifting device LW3-1 Gas Field South China Sea |
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