Mud din the drilling process, the drilling mud or water transport machinery such as washing fluid.

鉃泥浆泵是在钻井过程中，向钻井输送泥浆或水等介质的机械。

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Mud in the drilling process, the drilling mud or water transport machinery such as washing fluid.

泥浆泵是在钻探过程中，向钻孔输送泥浆或水等冲洗液的机械。

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In routine overbalanced drilling, the bottom hole pressure towers above the formation pressure so that the mud fluid will leak into the formation.

常规过平衡钻井方式打开油气层时，井底压力高于地层压力，钻井流体会向地层渗滤甚至漏失。

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Drilling engineers use tons of a thick fluid called drilling mud to lubricate drill bits as they chew through rock.

FORBES: Blowout Suspected in Transocean Rig Explosion

Halliburton said that the report "accurately places responsibility on BP as the well owner for its operational decisions, " which included using a heavy fluid designed to keep gas from entering the well, called drilling mud, that was "too light" and probably mixed with the cement at the bottom of the well, and drilling too narrow a well.

WSJ: Final Oil-Spill Report Chastises BP, Others