BP: Cap successful in stopping oil leak | NevadaAppeal.com
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BP: Cap successful in stopping oil leak

In this image taken from video provided by BP PLC at 6:45 a.m. EDT Thursday July 15, 2010, oil flows from one of three valves of the new 75-ton cap atop the site of the Deepwater Horizon oil spill in the Gulf of Mexico as testing continues Thursday. BP engineers working to choke the flow of oil into the Gulf of Mexico found a leak on a line attached to the side of the new well cap and were trying to fix it Thursday before attempting to stop the crude. (AP Photo/BP PLC) NO SALES
AP | BP PLC

NEW ORLEANS (AP) – A tightly fitted cap was successfully keeping oil from gushing into the Gulf of Mexico for the first time in three months, BP said Thursday. The victory – long awaited by weary residents along the coast – is the most significant milestone yet in BP’s effort to control one of the worst environmental disasters in U.S. history.

Kent Wells, a BP vice president, said at a news briefing that oil stopped flowing into the water at 2:25 p.m. CDT after engineers gradually dialed down the amount of crude escaping through the last of three valves in the 75-ton cap.

“I am very pleased that there’s no oil going into the Gulf of Mexico. In fact, I’m really excited there’s no oil going into the Gulf of Mexico,” Wells said.

The stoppage came 85 days, 16 hours and 25 minutes after the first report April 20 of an explosion on the Deepwater Horizon oil rig that killed 11 workers and triggered the spill.

Now begins a waiting period to see if the cap can hold the oil without blowing a new leak in the well. Engineers will monitor pressure readings incrementally for up to 48 hours before reopening the cap while they decide what to do.

Though not a permanent fix, the solution has been the only one that has worked to stem the flow of oil since April. BP is drilling two relief wells so it can pump mud and cement into the leaking well in hopes of plugging it for good by mid-August.

BP has struggled to contain the spill and had so far been successful only in reducing the flow, not stopping it. The company removed an old, leaky cap and installed the new one Monday.

Between 93.5 million and 184.3 million have already spilled into the Gulf, according to federal estimates.