新型垂荡结构对钻井平台的性能优化研究

摘要

设计、研究一种新型结构的双浮体四立柱半潜式钻井平台,论证新型垂荡结构是否能够有效减小平台的垂荡响应.通过workbench建立双浮体四立柱原平台三维湿表面模型和新型结构的平台模型,通过数值模拟仿真分析,得到需要的数据进行综合评价.分析数据得出,增加新型垂荡结构的平台垂荡附加质量约增加一倍,平台在浪向角为0、45°、90°时垂荡响应的最小值、最大值、均值都有所减小,且垂荡响应最大值减小的较为明显.所设计的新型结构半潜式钻井平台能有效的降低平台的垂荡运动.%A new type of semi-submersible drilling platform of double floating body with four columns is designed and studied to demonstrate the new heave structure whether it can reduce the heave response of the platform effectively.The 3D Wet surface model of the new structure and the semi-submersible drilling platform of double floating body with four columns are created by using workbench software,the required data are obtained through simulation analysis and used for the comprehensive evaluation.The results show that the additional heave mass of the new heave structure is approximately doubled,and the minimum value,maximum value and mean value of the heave response are all reduced when the angle of wave is 0,45° and 90°,respectively,in which the heave maximum response is reduced obviously.The designed new semi-submersible drilling platform can effectively reduce its heave motion and can be applied in the design practice.