在进行浮动的海上作业时，节流和压井管线从水下防喷器组出来，之后沿钻井隔水导管外侧面到达水面。
In floating offshore operations, the choke and kill lines exit the subsea BOP stack and then run along the outside of the drilling riser to the surface.
在深水钻井作业中，一旦水下防喷系统发生故障，就必须将防喷器组和隔水管起出水面进行维修，将造成上百万元的损失；
When drilling in deepwater, once the Subsea BOP system breakdown, the BOP and riser must be pulled to the surface and cause great economic loss.
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