This pressure must be under control, and we control it by means of the mud which we circulate down the drill pipe.

这种压力必须加以控制，我们让泥桨顺着钻杆向下循环，用这种方法来控制压力。

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The control pod will open the valves that allow the drilling mud to be forced into the well.

控制板打开真空管，将钻井泥浆泵入油井。

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This pressure must be under control, and we control it by means of the mud which wecirculate down the drill pipe.

这种压力必须加以控制，我们让泥桨顺着钻杆向下循环，用这种方法来控制压力。 。

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Transocean engineers wanted to keep the pressure in the borehole under control with heavy mud while Halliburton set the cement plugs.

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Given the two red flags that had been thrown up previously, one would have expected that as a precaution a cement plug would have been placed somewhere in the wellbore as a secondary pressure seal before this primary pressure control system (heavy mud) was evacuated from the wellbore.

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The friction caused by the gas bubble pushing up the pipe and displacing the drilling mud used to control the pressure could have created a static charge that ignited the gas into a fireball.

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