打开防喷器闸板进行内部检查。
一旦井控或井涌发生时，可以用于快速密封井眼上部的装置称为闸板式防喷器。
A device that can be used to quickly seal the top of the well in the event of a well control event (kick).
闸板防喷器中不同的闸板块可以更换，能够使井队优化防喷器的外型，对于某一特殊的井眼部分或者作业进程。
The various ram blocks can be changed in the ram preventers, enabling the well team to optimize BOP configuration for the particular hole section or operation in progress.
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