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They have every reason to believe, given enough time, that they will conquer this problem of mud that turned to cement.
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In early August, owner BP used cement and mud to plug the damaged Gulf of Mexico well.
CNN: STORY HIGHLIGHTS
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The solutions for -- the solution with the top kill, first in stabilizing the well with heavy drilling mud, ultimately would lead to the cement capping of that well.
WHITEHOUSE: Press Briefing
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From that point, it will take another few days to permanently seal the well with mud and cement from below in what's called a "bottom kill" procedure.
CNN: STORY HIGHLIGHTS
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The mud solidified into a cement like mass that caused the well to stop flowing and then really STOP FLOWING.
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You could either do it separately if the integrity of the wellbore has been maintained through the explosion, and if not, it helps when the relief well intersects to the well in having a separate point of pressurization for mud and cement.
WHITEHOUSE: Press Briefing
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That could have been why Transocean was pushing to complete the cement plugs while the well was still weighted with mud.
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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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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
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With that leak sealed, the plan is to inject heavyweight "kill mud" into the lower part of the blowout preventer, followed by cement that will effectively entomb the well.
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