Ocean Engineering Equipment and Technology ›› 2017, Vol. 4 ›› Issue (6): 326-330.

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Study on Pipeline J-Lay Analysis with Deepwater Semi-Submersible Crane J-Lay Vessel

HE Ning, ZHAO Dang, WANG Hui   

  1. Offshore Oil Engineering Co., Ltd., Tianjin 300451, China
  • Received:2017-07-31 Online:2017-12-25 Published:2018-01-02
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Abstract: The important design parameters for deepwater semi-submersible crane J-lay vessel are analyzed. Firstly, we investigate the existing J-lay vessels and typical pipeline J-lay projects. And then we check the pipe outer diameter and wall thickness under different water depths based on related standards. The pipe laying efficiencies with different work stations and unit section pipe lengths are compared. Finally, we get the required function for the proposed J-lay vessel design.

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