The Corner

Top Killed, For Now

BP officials remain cautiously optimistic that the “top kill” effort will prove a success. Heavy mud and debris have reduced oil/gas flow and pressure on the ocean floor to relatively low levels, but the effort will not be complete until pressure reaches zero and cement is pumped in to seal off the well.

Engineers have at least temporarily stopped the flow of oil and gas into the Gulf of Mexico from a gushing BP well, the federal government’s top oil-spill commander, U.S. Coast Guard Adm. Thad Allen, said Thursday morning.

The “top kill” effort, launched Wednesday afternoon by industry and government engineers, had pumped enough drilling fluid to block oil and gas spewing from the well, Allen said. The pressure from the well was very low, he said, but persisting. The top kill effort is not complete, officials caution.

Once engineers had reduced the well pressure to zero, they were to begin pumping cement into the hole to entomb the well. To help in that effort, he said, engineers also were pumping some debris into the blowout preventer at the top of the well.

More here.

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