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Safety assessment for a side-by-side offloading mooring system

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Abstract

In order to improve the safety properties of an offloading system with side-by-side (SBS) mooring in which the FPSO is moored by a yoke system in the field of BZ25-1, it is necessary to analyze those properties. According to the experience of similar projects, tow strategies of different offloading arrangements were discussed by using the 3-D radiation/diffraction theory and quasi-static time domain method to assess their respective safety properties. Through the safety assessment analysis of different arrangement comparisons, various ways to improve the safety properties of offloading systems with side-by-side mooring were verified by analyzing the tension in the mooring lines and the fender deflection. Through comparison it can be concluded that by enlarging the key factors properly, including the size of the fenders and the hawsers as well as the number of hawsers, a better safety performance can be achieved.

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Authors and Affiliations

  1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin, 150001, China

    Liping Sun, Qiang He & Shangmao Ai

Authors
  1. Liping Sun
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  2. Qiang He
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  3. Shangmao Ai
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Corresponding author

Correspondence to Qiang He.

Additional information

Foundation item: Supported by the China National 111 project under Grant No.B07019, and Important National Science & Technology Specific Projects under Grant No.2008ZX05-056-03.

Liping Sun was born in 1962. She is a professor of Harbin Engineering University, and a member of the Chinese Society of Ocean Engineering, as well as a member of the Chinese Society of Naval Architects and Marine Engineers. Her current research interests include floating structure analysis, deepwater riser analysis, and safety operation of offshore structures.

Qiang He was born in 1984. He is a student of Harbin Engineering University. His current research interest is multi-floating systems.

Shangmao Ai was born in 1978. He is a lecturer of Harbin Engineering University. His current research interests include floating structure analysis and VIV of pipelines and risers.

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Sun, L., He, Q. & Ai, S. Safety assessment for a side-by-side offloading mooring system. J. Marine. Sci. Appl. 10, 315–320 (2011). https://doi.org/10.1007/s11804-011-1074-1

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  • DOI: https://doi.org/10.1007/s11804-011-1074-1

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