Abstract
Single Point Mooring (SPM) is of great use to offshore floating structures which are currently in use in Vietnam’s coastal waters. However, this country is facing the lack of the related guidelines and standards for analysis, simulation and design of SPM system. This fact is the rationale for this paper which is aimed to propose a procedure for computation of the effects of sea environment on a SPM system. Specifically, the procedure enables the identification of maximum load exerting on the mooring buoy. Then, such identification together with the water depth parameter enables the determination of the optimal length and diameter of the desired chain. Finally, this paper presents a primary simulation of the mooring chain system according to various water depth conditions.
Highlights
For the offshore oil and gas industry nowadays, the use of floating storage to store, process and extract crude oil is an effective solution to offshore deep-water oil fields especially ones located on marginal zones in which the construction of the above floating storage systems are more cost-effective than the pipelines
Most of the previous researches on this issue focus on the stability of mooring lines with sinkers and without the sinkers[4], as well as on the usage of ANSYS AQWA program to simulate the motion of mooring lines[3]
The maximum value of the horizontal load H is set at 1,144.897 T, which is the representative horizontal load for all the wind directions and currents based on the design probability in order to compute the mooring lines in water
Summary
For the offshore oil and gas industry nowadays, the use of floating storage to store, process and extract crude oil is an effective solution to offshore deep-water oil fields especially ones located on marginal zones in which the construction of the above floating storage systems are more cost-effective than the pipelines. Most of the previous researches on this issue focus on the stability of mooring lines with sinkers and without the sinkers[4], as well as on the usage of ANSYS AQWA program to simulate the motion of mooring lines[3]. The understanding of the effect of parameters on the design and simulation of mooring lines is limited, which causes difficulties for the design, inspection, and maintenance of mooring lines. Based on the foregoing reality, the authors present the theories and algorithms in the design and simulation of mooring lines. According to the studied algorithms [1], we build a program by Matlab [6]to shorten the computation’s time. From the results, we will evaluate and draw conclusions about the parameters affecting the design and simulation of mooring lines
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