'Top kill' fails to stop Gulf oil leak

May 30, 2010 by Allen Johnson
Oil mixes with water in the Gulf of Mexico off the coast of Venice, Louisiana, May 29. BP's "top kill" operation to plug the ruptured well in the Gulf of Mexico has failed in a stunning setback to efforts to stem the worst oil spill in US history.

BP's "top kill" operation to plug the ruptured well in the Gulf of Mexico has failed in a stunning setback to efforts to stem the worst oil spill in US history.

BP and federal authorities said Saturday they are now turning to a new strategy to stop the leak, but it will take at least four to seven days before it can be put into place.

At least 20 million gallons are now estimated to have gushed into the ocean since the disaster unfolded five weeks ago, threatening an environmental and economic catastrophe across hundreds of kilometers of the US Gulf Coast.

"After three full days of attempting 'top kill,' we have been unable to overcome the flow from the well, so we now believe it's time to move on to the next of our options," BP Chief Operations Officer Doug Suttles told a press briefing.

President called the developments "enraging" and "heartbreaking."

Engineers had spent days pumping some 30,000 barrels of heavy drilling fluid into the leaking well head on the ocean floor in a high-pressure bid to smother the gushing crude and ultimately seal the well with cement.

But the effort failed, and when asked specifically why, Suttles had no direct answer.

"We don't know that for certain," he said.

The announcement marks the latest failure for BP, which despite a series of high-tech operations over the past month has appeared powerless to bring the disaster to heel since an explosion on the BP-leased Deepwater Horizon oil rig April 20 which killed 11 workers. The rig sank two days later.

The British energy giant had stressed that "top kill" was the best chance at stopping the leak other than drilling an entirely new relief well, a process that has already begun but is expected to take another two months.

"Obviously, we're very disappointed in today's announcement and I know all of you are anxious to see this well secured," US Coast Guard Rear Admiral Mary Landry told the briefing.

Efforts will now focus on severing the damaged riser pipes that lay crumpled on the ocean floor, then installing a containment device that could capture the leaking oil and syphon it to the surface.

The new containment plan, scheduled to begin next week, is called the "Lower Marine Riser Package Cap (LMRP Cap)."

It is a complex operation that will be carried out by remotely operated robots on the , BP officials said -- nearly one mile (1.6 kilometers) below the spot where the drilling rig exploded.

The robots, wielding cutting tools, will sever the bent riser pipe and replace it with the LMRP cap, BP officials say.

The cap will then be connected to a riser leading to the drill ship Enterprise, nearly above the robots.

Suttle said that even if LMRP works, it will only contain a majority of the oil and not all of it.

The setback came a day after Obama visited the region for the second time since the spill began 40 days ago, in an attempt to bring new urgency to the response.

Obama toured some of the affected areas in Louisiana on Friday and pledged to do whatever it takes to help Americans whose livelihoods have been upended by the spill.

On Saturday, the president said the new approach envisioned by BP was "not without risk" and has never been attempted before at this depth.

But he reiterated his determination to get the situation under control.

"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 man-made disaster are made whole," Obama said.

He ordered Interior Secretary Ken Salazar and other top environmental officials to return to the region next week to continue their work aggressively responding to the spill.

Since it began, an estimated 12,000 to 19,000 barrels of crude have been gushing into the Gulf each day.

The disaster has already closed stretches of coastal fishing waters, endangering the seafood industry and tourism, and threatening a catastrophe for Louisiana marshes, home to many rare species.

Government data released Thursday suggested between 18.6 million gallons and 29.5 million gallons of oil have poured into the Gulf -- far more than the roughly 11 million gallons of crude spilled in the 1989 Exxon Valdez disaster.

Amid the environmental catastrophe, there were also growing fears for the health of cleanup workers exposed to the oil and chemical dispersants.

Four more crewmen aboard ships helping burn off surface oil were evacuated to hospital late Friday after falling ill, a day after the Coast Guard announced that seven workers were evacuated for medical emergencies.

Meanwhile, The New York Times, citing internal company documents, reported Sunday that BP had serious concerns about the the Deepwater Horizon rig, but still broke its own safety policy.

The documents also showed that BP was worried about safety on the rig far earlier than it let on to Congress in hearings earlier this week, the paper reported.

On June 22, 2009, BP engineers expressed concerns that the metal well casing the company wanted to use might collapse under high pressure, according to The Times.

However, the company went ahead with the casing after getting special permission from BP colleagues because it violated the company’s safety policies and design standards, according to the report.

The internal reports do not explain why the company allowed for an exception, the paper said.

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User comments : 11

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HODuser
3.7 / 5 (3) May 31, 2010
Did you fix the leak Daddy?
Szkeptik
not rated yet May 31, 2010
Oh, they have a ship called Enterprise on the job? Now they just have to get Patrick Stewart on board and they can't possibly fail.
goldengod
not rated yet May 31, 2010
They punctured the muovo. They have to fuse the earths crust now or we are talking about serious gloal catastrophe!!!!!
goldengod
1 / 5 (1) May 31, 2010
mhorovicic. seperates rock in which p-waves have vel 6-7 km/s from pwaves 8/km/sec.
goldengod
1 / 5 (1) May 31, 2010
7 km/sec = pressure out of our limits of understanding. We don't know what the liquid is like at that pressure. Quite possibly no s-waves at that pressure!!!

Russians and Norwegians have the tech to do this.
Quantum_Conundrum
not rated yet May 31, 2010
Oh, they have a ship called Enterprise on the job? Now they just have to get Patrick Stewart on board and they can't possibly fail.


The fact that a blue sphere didn't fall from the sky and Frank Parker show up is evidence that we do not have time travel...nor ever will...
randolmj
not rated yet May 31, 2010
Big spill into a big Gulf:
The spill's impact could be miminized it it were dispersed. With the reported spill (20 million gallons total) and area (15,000 sq. miles), the oil layer is 0.1 thosands inch thick. If the spill were dispersed into 70 feet of water, oil would be 0.1 mg./L, below the Massachusetts Department of Environmental Protection drinking water standard.
goldengod
1 / 5 (1) May 31, 2010
The problem is the pressure coming out of the fissure they have created in the mhorovicic discontinuity layer. The Top fill just forced it to find another route to the surface. Hence Guatemala. San Andreas and Missouri fault lines are also seeing a major spike in activity now.

If they don't fuse the gap in the Moho soon they could well trigger Yellowstone!!!!!
goldengod
not rated yet May 31, 2010
The oil coming out is the least of our worries at this point. Get the Russians and Norwegians in as soon as possible to assist with the solution unless you want to see the whole of America geologically transformed and suffer the consequences.
HealingMindN
not rated yet May 31, 2010
Have you guys tried BP's suggestion box? http://www.deepwa.../546759/ is it real or just a bunch of BS like their disasterous operation?

Although the U.S. is the most hated country, I imagine that Russia and Norway have been trying to help, but the A-hole adm. in this country is refusing. That hole would have been sealed already if they used the ISIS Research on asphaltenes.
boldone894
5 / 5 (1) Jun 01, 2010
Almost the same thing happened in 1979. They used the same technics and they did not work then either. It took them months to fix it and at the time, it was the worst oil disaster in history.
That was in 200 ft of water. This is @5000'. Their bids to fix wont likely work until they drill secondary well heads like they did in'79. How little we learn and how quickly we forget!
Check out Rachel Maddow's show on MSNBC on youtube on the more spills change the more they stay the same.

The company that owned the rig (not BP) is the same company both times(They changed their name of course)!
http://www.youtub...SBatwWvQ

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