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针对南海流花16-2油田张力腿平台,基于数值分析方法模拟张力腿湿拖的过程,分析了张力腿在不同海洋环境和拖航速度等参数下的疲劳损伤,给出了合适的湿拖作业天气窗口。研究结果表明,在张力腿湿拖过程中,其疲劳损伤对来浪方向、有义波高及拖航速度较为敏感;湿拖作业应在拖航船舶与波浪方向夹角小于30°,波高不超过3 m且拖航速度不小于11.11 km/h的条件下开展。本文研究结果可为张力腿水平湿拖安装作业提供参考。
Aiming at the tension leg platform of Liuhua 16-2 oilfield in the South China Sea, the process of wet drag of tension leg is simulated based on numerical analysis method. The fatigue damage of tension leg under different marine environment and towing speed parameters is analyzed, and the suitable wet dragging operation Weather window. The results show that the fatigue damage is more sensitive to wave direction, wave height and towing speed during the wet drag of tension legs. The wet towing operation should be less than 30 ° with the angle between the towing ship and the wave direction less than 3 m and the towing speed is not less than 11.11 km / h. The results of this paper can provide a reference for the installation of tension-leg wet mopping.