水下应急封井装置深海测试稳定性分析

介绍了国产水下应急封井装置主要部件组成,分析了应用半潜式钻井平台进行水下应急封井装置部署影响因素。对水下应急封井装置在甲板组装的稳定性,使用采油树叉车运移的稳定性及钻杆下入过程进行了分析和作业窗口模拟。结果表明:该套水下应急封井装置可以通过A平台在深水环境下进行布放,在A平台甲板组装及使用A平台采油树叉车运移过程中不会发生倾覆; 在浪高不高于3 m,流速不高于0.58 m/s的海况下,使用钻杆下放水下应急封井装置具有最优作业窗口。分析结果对水下应急封井装置在井喷应急情况下进行现场应用具有重要意义。

Stability Analysis of the Underwater Emergency Well Capping Stack in Sea-Trial

The main components of the domestic underwater emergency well capping stack were introduced, and the influencing factors on the deployment of the underwater emergency well capping stack using semi-submersible drilling platforms were analyzed. The movement stability and drill pipe running process were analyzed and the operation window was simulated. The results show that the underwater emergency well sealing device can be deployed in a deep water environment through platform A; overturning will not occur during the assembly of platform A deck and the transportation of platform A Christmas tree forklift. Under the sea conditions where the wave height is not higher than 3 m and the flow velocity is not higher than 0.58 m/s, using the drill pipe to lower the underwater emergency capping stack has the optimal operating window. The analysis results are of great significance for the field application of the underwater emergency well capping stack in the case of a blowout emergency.