Tags: US | Gulf | Oil | Spill

After Another Failure, BP Scrambles to Stem Leak

Sunday, 30 May 2010 10:23 AM

 

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With BP declaring failure in its latest attempt to plug the uncontrolled gusher feeding the worst oil spill in U.S. history, the company is turning to yet another mix of risky undersea robot maneuvers and longshot odds to keep crude from flowing into the Gulf.

Six weeks after the catastrophe began, oil giant BP PLC is still casting about for at least a temporary fix to the spewing well underneath the Gulf of Mexico that's fouling beaches, wildlife and marshland. A relief well that's currently being drilled - which is supposed to be a better long-term solution - won't be done for at least two months. That would be in the middle of the Atlantic hurricane season, which begins Tuesday.

President Barack Obama said it is "as enraging as it is heartbreaking" that the most ambitious bid yet for a temporary solution failed. BP said Saturday that the procedure known as the "top kill" failed after engineers tried for three days to overwhelm the crippled well with heavy drilling mud and junk 5,000 feet underwater.

Now, BP hopes to saw through a pipe leading out from the well and cap it with a funnel-like device using the same remotely guided undersea robots that have failed in other tries to stop the gusher.

Robert Dudley, BP's managing director, said on "Fox News Sunday" that company officials were disappointed that they "failed to wrestle this beast to the ground."

Engineers will use remotely guided undersea robots to try to lower a cap onto the leak after cutting off part of a busted pipe leading out from the well. The funnel-like device is similar to a huge containment box that failed before when it became clogged with icelike slush. Dudley said officials "learned a lot" from that failure and will pump warm water through the pipes to prevent the ice problems.

The spill is the worst in U.S. history - exceeding even the 1989 Exxon Valdez disaster - and has dumped between 18 million and 40 million gallons into the Gulf, according to government estimates. The leak began after the Deepwater Horizon drilling rig exploded in April, killing 11 people.

Suttles said BP is already preparing for the next temporary fix. The company plans to cut off the damaged riser, and then try to cap it with a containment valve. The effort is expected to take between four and seven days.

"This scares everybody, the fact that we can't make this well stop flowing, the fact that we haven't succeeded so far," BP Chief Operating Officer Doug Suttles said Saturday. "Many of the things we're trying have been done on the surface before, but have never been tried at 5,000 feet."

He said cutting off the damaged riser isn't expected to cause the flow rate of leaking oil to increase significantly.

Experts have said that a bend in the damaged riser likely was restricting the flow of oil somewhat, so slicing it off and installing a new containment valve is risky.

"If they can't get that valve on, things will get much worse," said Philip W. Johnson, an engineering professor at the University of Alabama.

Johnson said he thinks BP can succeed with the valve, but added: "It's a scary proposition."

News that the top kill fell short drew a sharply worded response from President Obama on Saturday, a day after he visited the Gulf Coast to see the damage firsthand.

"It is as enraging as it is heartbreaking, and we will not relent until this leak is contained, until the waters and shores are cleaned up, and until the people unjustly victimized by this manmade disaster are made whole," Obama said.

In the days after the spill, BP was unable to use robot submarines to close valves on the massive blowout preventer atop the damaged well, then two weeks later, ice-like crystals clogged a 100-ton box the company tried placing over the leak. Earlier this week, engineers removed a mile-long siphon tube after it sucked up a disappointing 900,000 gallons of oil from the gusher.

Frustration has grown as drifting oil closes beaches and washes up in sensitive marshland. The damage is underscored by images of pelicans and their eggs coated in oil. Below the surface, oyster beds and shrimp nurseries face certain death. Fishermen complain there's no end in sight to the catastrophe that's keeping their boats idle.

In the latest try, BP engineers pumped more than 1.2 million gallons of heavy drilling mud into the well and also shot in assorted junk, including metal pieces and rubber balls.

The hope was that the mud force-fed into the well would overwhelm the upward flow of oil and natural gas. But Suttles said most of the mud escaped out of the damaged pipe that's leaking the oil, called a riser.

Word that the top kill had failed hit hard in fishing communities along Louisiana's coast.

"Everybody's starting to realize this summer's lost. And our whole lifestyle might be lost," said Michael Ballay, the 59-year-old manager of the Cypress Cove Marina in Venice, La., near where oil first made landfall in large quantities almost two weeks ago.

Johnny Nunez, owner of Fishing Magician Charters in Shell Beach, La., said the spill is hurting his business during what's normally the best time of year - and there's no end in sight.

"If fishing's bad for five years, I'll be 60 years old. I'll be done for," he said after watching BP's televised announcement.

The top official in coastal Plaquemines Parish said news of the top kill failure brought tears to his eyes.

"They are going to destroy south Louisiana. We are dying a slow death here," said Billy Nungesser, the parish president. "We don't have time to wait while they try solutions. Hurricane season starts on Tuesday."

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Online: http://www.deepwaterhorizonresponse.com/go/site/2931/

——

Associated Press Writers Matthew Brown, Janet McConnaughey and Mary Foster in New Orleans and AP Radio correspondent Shelly Adler contributed to this report.

© Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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