Single Point Mooring System for an Offshore LNG Import Terminal

2005 ◽  
Vol 20 (04) ◽  
pp. 340-348
Author(s):  
Marcus Hendrik Krekel ◽  
Richard Leeuwenburgh ◽  
William M. Bishop ◽  
James F. Jim Davis
Keyword(s):  
Single Point ◽  
Mooring System

An Investigation Into the Effect of Turret Mooring Location on the Vertical Motions of an FPSO Vessel

1999 ◽  
Vol 121 (2) ◽  
pp. 71-76 ◽  
Author(s):  
K. P. Thiagarajan ◽  
S. Finch
Keyword(s):  
Oil And Gas ◽  
Single Point ◽  
Mooring System ◽  
Interior Space ◽  
North West ◽  
Design Considerations ◽  
Oil And Gas Fields ◽  
Offshore Oil And Gas ◽  
Gas Fields ◽  
Offshore Oil

Turret-moored floating production storage and offloading (FPSO) vessels have found application in several offshore oil and gas fields in Australia’s North West Shelf (NWS). These vessels are either custom-built or converted tankers, with an internal or external turret. The position of an internal turret is decided based on a number of design considerations, primarily, available deck and interior space, and weathervaning capabilities. It is known that turret position can influence vertical motions and accelerations of a vessel, but this factor has not been given much importance, in comparison with the effects on the horizontal plane motions, primarily surge. This paper presents the results of a pilot study conducted at the Australian Maritime College, Tasmania, to study the vertical motions of a single-point moored FPSO model in waves, while systematically varying the mooring position across the length of the model. The displacement of the vessel was held constant at 50-percent-loaded condition. A single-point mooring system was designed and implemented on the model to simulate the prototype turret mooring system. Results show that the mooring location significantly affects the vertical motions and accelerations of the vessel. Astern turrets were found to produce higher heave and pitch than other locations tested. Although turrets positioned close to the longitudinal center of gravity produced the lowest overall motions, it is suggested that turret position forward of midships be preferred, as it provides a balance between lowering vertical motions and improving weathervaning characteristics.

The Application of FPSO in Oil and Gas Exploitation

2012 ◽  
Vol 256-259 ◽  
pp. 1952-1955
Author(s):  
Ting Guo ◽  
Hong De Qin
Keyword(s):  
Oil And Gas ◽  
Single Point ◽  
Mooring System ◽  
Hydrodynamic Analysis ◽  
Comprehensive Review ◽  
Floating Structures ◽  
The World

The far-flung ocean has abundant resource and the exploitation area of ocean oil and gas is developing from offshore to deepwater and ultra-deepwater following the increase demand for oil and gas resource. Therefore, one of the floating structures for deepwater exploitation is FPSO. The yaw of FPSO is more important problem to solve. This paper use Hydrostar to compute the RAOs, 1st-order and 2nd-order force of FPSO. A comprehensive review is introduced about the research on FPSO hydrodynamic in the world, including the coupling hydrodynamic analysis of deepwater FPSO with the mooring system. The results indicate that the FPSO’s 1st-order force and moment is a little large, however, the RAOs and 2nd-order force and moment are good. The FPSO with single point mooring system can control the displacement of FPSO effectively.

Single Point Mooring System for an Offshore LNG Import Terminal

2004 ◽  
Author(s):  
M.H. Krekel ◽  
R. Leeuwenburgh ◽  
W.M. Bishop ◽  
J.F. Davis
Keyword(s):  
Single Point ◽  
Mooring System

OTEC-1 Mooring

1982 ◽  
Vol 19 (03) ◽  
pp. 256-267
Author(s):  
Harold D. Ramsden ◽  
William A. Watts
Keyword(s):  
Energy Conversion ◽  
Thermal Energy ◽  
Single Point ◽  
Mooring System ◽  
Test Program ◽  
Large Capacity ◽  
Ocean Thermal Energy Conversion ◽  
Engineering Community ◽  
Thermal Energy Conversion ◽  
Ocean Thermal Energy

Implementation of the Ocean Thermal Energy Conversion (OTEC-1) Early Ocean Test Program presented the engineering community with some unique challenges. One of the challenges was to provide a mooring system to keep the ship on station at least nine months per year for five years. The resulting design proved to be the most economical. It also became the world's deepest large-capacity single-point moor. This paper discusses the background, requirements and design details of the OTEC-1 Platform mooring system.

Experimental investigation on a single point buoy mooring system

1991 ◽  
Vol 18 (5) ◽  
pp. 405-417 ◽  
Author(s):  
R. Sundaravadivelu ◽  
M. Harikrishna Babu ◽  
R. Murugaganesh
Keyword(s):  
Experimental Investigation ◽  
Single Point ◽  
Mooring System

Study on Weight Control Methods of Single Point Mooring System of FPSO in Deepwater

2015 ◽  
Author(s):  
Yuan Hongtao ◽  
Zeng Ji ◽  
Chen Gang ◽  
Mo Jian ◽  
Zhao Nan
Keyword(s):  
Weight Control ◽  
Linear Time ◽  
Single Point ◽  
Line Tension ◽  
Coupled Analysis ◽  
Mooring Line ◽  
Mooring System ◽  
Control Methods ◽  
Analysis Method ◽  
Mooring Lines

This paper applies 3D potential theory and non-linear time domain coupled analysis method to analyze motion response of FPSO and dynamic response of mooring line of single mooring system. In addition, respectively to calculate mooring line tension of tension type and composite mooring line type and added buoy in mooring line. There the paper analyze different mooring lines to affect on the weight of single point mooring system of deepwater FPSO. Which expects to provide a theoretical basis for single point mooring system design and weight control.

Hydrodynamic performance of a semi-submersible offshore fish farm with a single point mooring system in pure waves and current

2020 ◽  
Vol 90 ◽  
pp. 102075 ◽  
Author(s):  
Xiao-Hua Huang ◽  
Hai-Yang Liu ◽  
Yu Hu ◽  
Tai-Ping Yuan ◽  
Qi-You Tao ◽  
...  
Keyword(s):  
Single Point ◽  
Fish Farm ◽  
Hydrodynamic Performance ◽  
Mooring System
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