On May 26th BP, the company responsible for the well that Deepwater Horizon had drilled, started to pump heavy drilling mud into the well's blowout preventer, a set of valves on the sea floor.

应当为“深水地平线”钻井台石油泄漏事件负责的BP（英国石油公司）在5月26日开始用泵将重型钻井泥浆打入海底的阀门组（防喷器）中。

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On May 26th BP started to pump heavy drilling mud into the blowout preventer, the set of valves at the top of the well to which that broken pipe is attached.

5月26日，英国石油公司开始将重型钻探泥浆用泵抽运进防喷装置- - - - -它是由多个气阀构成，位于油井顶部，连接着那根已断裂的立管。

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When the pump is first started, rotation of gears forces air out the casing and into the discharge pipe.

当泵首次启动时，齿轮的旋转迫使空气离开壳体进入排油管。

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On May 26th BP, the company responsible for the well that Deepwater Horizon had drilled, started to pump heavy drilling mud into the well's blowout preventer, a set of valves on the sea floor.

ECONOMIST: Nerves are fraying a month after the Gulf of Mexico oil spill

This is what this data is supposed to monitor, but the well flow evidence would appear to have been ignored, because at this point the BP rig supervisors should have gone to a well kill operation and started to pump heavy mud back into the well bore to restore the primary control mechanism.

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

Once production gets started, the field would pump out 1.5 million barrels of oil per day, to be shared amongst the investment group.

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