From this point, reliability study is absolutely necessary in the process of BOP system designing.

因此，在深水防喷器组及其控制系统设计过程中，可靠性研究必不可少。

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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.

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；

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Deepwater drilling is the key of offshore oil and gas exploration and development. Deepwater BOP system is the key equipments which ensure safety in drilling operation.

深水钻井是海上油气资源勘探开发的龙头，而深水防喷器组是保证钻井作业安全最关键的设备。

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Mr. Hayward and BP have taken the position that this tragedy is all about a fail-safe blow-out preventer (BOP) failing, but in reality the BOP is really the backup system, and yes we expect that it will work.

WSJ: The Oil Disaster Is About Human, Not System, Failure