Ocean Systems Engineering

  • 제8권4호
  • /
  • Pages.427-439
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  • 2018
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  • 2093-6702(pISSN)
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  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
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Numerical and experimental investigation on the global performance of a novel design of a Low Motion FPSO

  • 투고 : 2018.08.12
  • 심사 : 2018.10.25
  • 발행 : 2018.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

Floating Production Storage and Offloading (FPSO) units have the advantages of their ability to provide storage and offloading capabilities which are not available in other types of floating production systems. In addition, FPSOs also provide a large deck area and substantial topsides payload capacity. They are in use in a variety of water depths and environments around the world. It is a good solution for offshore oil and gas development in fields where there is lack of an export pipeline system to shore. However due to their inherently high motions in waves, they are limited in the types of risers they can host. The Low Motion FPSO (LM-FPSO) is a novel design that is developed to maintain the advantages of the conventional FPSOs while offering significantly lower motion responses. The LM-FPSO design generally consists of a box-shape hull with large storage capacity, a free-hanging solid ballast tank (SBT) located certain distance below the hull keel, a few groups of tendons arranged to connect the SBT to the hull, a mooring system for station keeping, and a riser system. The addition of SBT to the floater results in a significant increase in heave, roll and pitch natural periods, mainly through the mass and added mass of the SBT, which significantly reduces motions in the wave frequency range. Model tests were performed at the Korea Research Institute of Ships & Ocean Engineering (KRISO) in the fall of 2016. An analytical model of the basin model (MOM) was created in Orcaflex and calibrated against the basin-model. Good agreement is achieved between global performance results from MOM's predictions and basin model measurements. The model test measurements have further verified the superior motion response of LM-FPSO. In this paper, numerical results are presented to demonstrate the comparison and correlation of the MOM results with model test measurements. The verification of the superior motion response through model test measurements is also presented in this paper.

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참고문헌

  1. Goncalves, R.T., Matsumoto, F.T., Malta, E.B., Rosetti, G.F., Fujarra, A.L.C. and Nishimoto, K. (2009, 2010), "Evolution of the MPSO (monocolumn production, storage and offloading system)", Mar. Syst. Ocean Technol., 5(1), 43-51.
  2. Ha, M.K., Kim, M.S. and Paik, B.K. (2002), "Motion and sloshing analysis for new concept of offshore storage unit", Int. J. Ocean Eng. Technol., 5(1), 22-28.
  3. Khaw, T., Rawstron, P. and Lagstrom, K. (2005), "A new approach to the design of Mono-Hull FPSOs", Proceedings of the ASME 2005 24th International Conference on Offshore Mechanics and Arctic, OMAE2005-67033, Halkidiki, Greece, June 2005.
  4. Kim, J.W., O'Sullivan, J., Steen, A. and Halkyard, J. (2008), "Global performance and sloshing analysis of a new deep-draft semi-submersible LNG FPSO", Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE2008-58001, Estoril, Portugal, June 2008.
  5. Mansour, A.M. (2009), "FHS semi: A semisubmersible design for dry tree applications", Proceedings of the ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2009-79303, Honolulu, USA, June 2009.
  6. Mansour, A.M. and Kumar, D. (2013), "High performance semisubmersible design for dry tree applications in harsh environment", Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE2013-10922, Nantes, France, June 2013.
  7. Mansour, A.M., Dib, M., Zuccolo, R., Bagaria, A., Greiner, B., James, J., Kumar, D., Heidari, H. and Azevedo, J. (2014), "A disconnectable dry tree semisubmersible design exposed to iceberg and harsh environment", Proceedings of the OTC Arctic Technology Conference, OTC-24558-MS, Houston, USA, Feb 2014.
  8. Mansour, A.M., Kumar, D., Zuccolo, R.; James, J. and Heidari, H. (2014), "Novel dry-tree semisubmersible solutions for deepwater marginal field development", Proceedings of the Offshore Technology Conference, OTC-25351-MS, Houston, USA, May 2014.
  9. Mansour, A.M., Upston, L. and Wan, Y. (2011), "Dry and wet tree damper chamber column semisubmersible design in harsh environment", Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2011-49729, Rotterdam, The Netherlands, June 2011.
  10. Mansour, A.M., Wu, C. and Greiner, B. (2010), "New semisubmersible design with damper chamber columns - a cost effective solution for dry and wet tree applications", Proceedings of the Deep Offshore Technology Conference, Houston, USA, 2010.
  11. Mansour, A.M., Wu, C., Kumar, D. and Zuccolo, R. (2014) "The Tension Leg Semisubmersible (TLS): The hybrid TLP-semisubmersible floater with the spar response", Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, OMAE2014-23533, San Francisco, USA, June 2014.
  12. Mansour, A.M., Wu, C., Peng, C., Zuccolo, R., Bagaria, A., Bhat, S., Yu, J. and Sung, H.G. (2017), "A low motion FPSO design hosting SCR and TTR in harsh environment", Proceedings of the Offshore Technology Conference (OTC), Houston, USA, May 2017.
  13. Mansour, A.M., Wu, C., Zuccolo, R. and Azevedo, J. (2015), "The low motion FPSO (LM-FPSO): a novel SCR and TTR friendly floater", Proceedings of the Deep Offshore Technology International 2015 (DOT-2015), Houston, USA, October 2015.
  14. Mansour, A.M., Zuccolo, R. and Kumar, D. (2013), "Key Considerations for the FHSB Dry Tree Semisubmersible in Harsh Environment", Proceedings of the Deep Offshore Technology Conference, Houston, 2013.
  15. Mansour, A.M., Zuccolo, R., Peng, C., Wu, C., Greiner, B., Kumar, D. and Azevedo, J. (2016), "An innovative FPSO design hosting SCRs in the North Sea harsh environment", Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering (OMAE), Bushan, Korea, June 2016.
  16. Matsumoto, F.T., Goncalves, R.T., Malta, E.B., De Medeiros, H.F., Nishimoto, K. and Masetti, I.Q. (2008), "The influence at vertical first order motions using appendages in a Monocolumn platform", Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE2008-57410, Estoril, Portugal, June 2008.
  17. Na, J.H., Lee, W.C., Shin, H.S. and Park, I.K. (2002), "A design of bilge keels for harsh environment FPSOs", Proceedings of the 12th International Offshore and Polar Engineering Conference, ISOPE-I-02-019, Kitakyushu, Japan, May, 2002.
  18. Peng, C., Mansour, A.M., Wu, C., Zuccolo, R. and Greiner, B. (2018), "Key design considerations for the dry tree low motion FPSO (LM-FPSO)", Proceedings of the 23rd Offshore Symposium, Texas Section of the Society of Naval Architects and Marine Engineers (SNAME), Houston, USA, February 2018.
  19. Song, H.D., Sung, H.G., Cho, S.K., Kim, B.W., Hong, J.P., Hwang, S.C., Mansour, A. and Wu, S. (2017), "Numerical study on the hydrodynamic effect of the SBT on the motion response of the low motion FPSO", Proceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE-I-17-067, San Francisco, USA, June 2017.
  20. Sung, H.G., Song, H.D., Hong, J.P., Hwang, S.C., Joung, T.H., Mansour, A. and Wu, C. (2016), "A numerical study for low motion FPSO with solid ballast tank", Proceedings of the 12th ISOPE Pacific/Asia Offshore Mechanics Symposium, ISOPE-P-16-119, Gold Coast, Australia, October 2016.
  21. Thiagarajan, K.P. and Finch, S. (1999), "An investigation into the effect of turret mooring location on the vertical motions of an FPSO vessel", J. Offshore Mech. Arct. Eng., 121(2), 71-76. https://doi.org/10.1115/1.2830080
  22. Zuccolo, R., Mansour, A.M., Wu, C. and Azevedo, J. (2016), "The low motion FPSO (LM-FPSO): a novel SCR friendly floater for deepwater in Brazil persistent swell environment", Proceedings of the 21st Offshore Symposium, Society of Naval Architects and Marine Engineers (SNAME), Houston, USA, February 2016.