半潜式钻井平台锚泊系统作业条件实例分析

One Operation Case Study about Mooring System of Semi-Submersible Drilling Platform

以巴西桑托斯盆地B区块P井为实例,采用理论分析和数值模拟结合的研究方法,利用作业水域实际海洋水文气象数据,得出平台在作业吃水和风暴吃水条件下,动态安全状态和动态破损状态时,锚链的断裂安全系数、锚抓力安全系数以及平台偏移范围。结合隔水管安全作业分析数据,为平台实际作业提供参考。

The P well of B area in Santos Basin of Brazilis is taken as an example, through the combination of theoretical analysis and numerical simulation, using the actual marine hydrometeorological data in the operating waters, the safety factor of the anchor chain frac- ture, safety factor of the anchorage force of the anchor chain, and the vessel offset are obtained on the intact or damaged conditions when the rig performs a drilling draft or survival draft. Combined with the analysis data of riser safety operation, the reference is provided for the ac- tual operation of the platform.