The antiseep performance of material for bore mud is good.

此种材料对钻井泥浆具有优良的防渗漏性能。

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The advantages of sunken-pipe-cast-in-place pile include preventing the borehole from collapsing and avoiding treatment of the bore mud.

沉管灌注桩的优点是有效防止塌孔并能避免灌注桩的泥浆处理；

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The limit deepness of deep bore-hole with mud dado in the soils is calculated and analysed by adopting theory of limit analysis.

利用极限分析原理对土体中泥浆护壁深钻孔的极限孔深问题进行计算研究。

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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.

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During the pumping and displacement of the heavyweight spacer used to displace the mud, a breach in pressure integrity resulted in the undetected loss of drilling mud into the probably uncemented well-bore.

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And following the intersection of the well bore with those relief wells, they will put heavy mud down there to suppress the pressure of the oil coming up from the reservoir, put a cement plug in and effectively do what I would call a bottom kill, as opposed to the top kill, which was not successful a couple of weeks ago.

WHITEHOUSE: Daily Press Briefing