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LNG-FPSO: Offshore LNG solution

GU Yan, JU Yonglin

Frontiers in Energy 2008, Volume 2, Issue 3, Pages 249-255 doi: 10.1007/s11708-008-0050-1

Abstract: The floating production, storage and offloading system for liquefied natural gas (LNG-FPSO), is a newHowever, a real LNG-FPSO unit cannot be built unless some breakthroughs in many key technologies areMany unique characteristics of LNG-FPSO, such as restricted space, platform motion, LNG sloshing in innerIn this paper, the overall layout of a typical LNG-FPSO unit is reviewed; the leading liquefaction technologies

Keywords： associated-gas LNG-FPSO transportation recovery effective

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construction integration technology in Brazil’s superlarge deep-water offshore oil and gas unit project (FPSO

Frontiers of Engineering Management 2022, Volume 9, Issue 2, Pages 349-353 doi: 10.1007/s42524-022-0187-3

Keywords： Brazil FPSO P67/P70 superlarge dry towing operation construction integration risk control management

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Numerical simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling pipe

Yan GU, Yonglin JU

Frontiers in Energy 2012, Volume 6, Issue 1, Pages 21-28 doi: 10.1007/s11708-012-0173-2

Abstract: Floating liquefied natural gas (LNG) plants are gaining increasing attention in offshore energy exploitation. The effects of the periodically oscillatory motion on the fluid flow in all processes on the offshore plant are very complicated and require detailed thermodynamic and hydrodynamic analyses. In this paper, numerical simulations are conducted by computational fluid dynamics (CFD) code combined with user defined function (UDF) in order to understand the periodically oscillating pressure characteristics of inviscid flow in the rolling pipe. The computational model of the circular pipe flow is established with the excitated rolling motion, at the excitated frequencies of 1–4 rad/s, and the excitated amplitudes of 3°–15°, respectively. The influences of flow velocities and excitated conditions on pressure characteristics, including mean pressure, frequency and amplitude are systematically investigated. It is found that the pressure fluctuation of the inviscid flow remains almost constant at different flow velocities. The amplitude of the pressure fluctuation increases with the increasing of the excitated amplitude, and decreases with the increasing of the excitated frequency. It is also found that the period of the pressure fluctuation varies with the excitated frequency. Furthermore, theoretical analyses of the flow in the rolling circular pipe are conducted and the results are found in qualitative agreement with the numerical simulations.

Keywords： fluctuation rolling floating production storage and offloading unit for liquefied natural gas (LNG-FPSO

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Floating production storage and offloading systems’ cost and motion performance: A systems thinking application

Rini NISHANTH, Andrew WHYTE, V. John KURIAN

Frontiers of Engineering Management 2018, Volume 5, Issue 3, Pages 357-368 doi: 10.15302/J-FEM-2018022

Abstract:

Floating production storage and offloading (FPSO) units increasingly represent a practical and economicSystems thinking gives a unique opportunity to seek a balance between FPSO technical performance(s),by diagnosing the problem-at-hand; namely, assessing the antecedents of life-cycle cost relative to FPSOCoupled dynamic analysis has been performed to generate FPSO motion in six degrees of freedom using SESAMA parametric study has been conducted by varying wave heights from 4 – 8 m to understand FPSO motion

Keywords： FPSO LCCA spread/turret-mooring DeepC cost motion soft-systems