As part of that process they had to replace the dense drilling mud, which was used to keep the well under pressure while it was drilled, with sea-water.

在封井过程中，他们必须把用于在钻探过程里，保持钻井与海水压力相当的高密钻井泥更换掉：因为上方的海水的压力低于底下油气的压力。

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Cuadrilla has so far only drilled two exploration Wells, with a third soon to be completed, but in its "high-end" scenario it envisages drilling 800 Wells in the area over 16 years.

目前为止，Cuadrilla公司只完成两个探井，第三个探井即将完工，但是在该公司的“宏大”设想中，他们将在未来的16年里，在轨地区钻出800个探井。

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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.

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, 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

Although new drilling is declining, a well that has been drilled will continue to be productive long after prices have fallen.

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While speaking with reporters, the President said the moratorium on off-shore drilling would continue through December and certain actively-drilled wells in the Gulf would be put on hold for a period of time.

FORBES: Magazine Article