极地半潜式钻井平台系泊系统设计
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Mooring System Design for Polar Semi-Submersible Drilling Platform
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    摘要:

    针对1艘设计用于极地海域作业的半潜式钻井平台开展系泊系统设计工作。对平台的系泊定位能力进行分析与校核。系泊设计的水深范围为100~500 m,环境条件筛选一年一遇海况作为作业工况设计海况,百年一遇海况作为自存工况设计海况。为验证平台在夏季无冰海况和弱冰情季节有冰条件下的平台系泊定位性能,选取风、浪、流载荷作为非冰期的主要环境载荷,选取风、流、冰载荷作为初、末冰期的主要环境载荷。计算结果表明,如不考虑冰山等恶劣情况,选用常规锚链作为系泊系统可满足平台在极地海域的夏季和弱冰期的作业需求。

    Abstract:

    The mooring system is designed for a semi-submersible drilling platform designed for the operations in polar seas. The mooring positioning capacity of the platform is analyzed and checked. The water depth of the design is in the range of 100 m to 500 m. The 1-year environment is selected as the design condition of the operating mode, and the 100-year environment is picked for the survival mode. To verify the positioning ability of the mooring system in polar sea environment, both weak ice and ice-free conditions are analyzed. Wind, wave and current loads are selected as the main environmental loads in the non-glacial period, and wind, current and ice loads are picked as the main environmental loads in the initial and final ice stages. The results show that if the harsh conditions such as icebergs are not considered, the conventional mooring chain can be used as the mooring system, which can meet the operation requirements of the platform in the summer and weak ice periods in the polar seas.

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李晓东,屈衍,刘大辉,张大刚,滕瑶.极地半潜式钻井平台系泊系统设计[J].中国海洋平台,2022,(05):76-81

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  • 在线发布日期: 2022-10-14
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