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A BP-chartered vessel lowered a
100-ton concrete-and-steel vault onto a ruptured well in the Gulf
of Mexico on Friday, an important step in a delicate and
unprecedented attempt to stop most of the gushing crude fouling the
sea.


      Underwater robots guided the 40-foot-tall box into place. Now
that the contraption is on the seafloor, workers will need at least
12 hours to let it settle and make sure it's stable before the
robots can hook up a pipe and hose that will funnel the oil up to a
tanker.


      "It appears to be going exactly as we hoped," BP spokesman
Bill Salvin told The Associated Press on Friday afternoon, shortly
after the four-story device hit the seafloor. "Still lots of
challenges ahead, but this is very good progress."


      By Sunday, the box the size of a house could be capturing up to
85 percent of the oil. So far about 3 million gallons have leaked
in an environmental crisis that has been unfolding since a
deepwater drilling platform exploded April 20, sending toxic oil
toward a shoreline of marshes, shipping channels, fishing grounds
and beaches. Eleven workers were killed in the accident.


      The lowering of the containment device was a slow-moving drama
playing out 50 miles from Louisiana's coast, requiring great
precision and attention to detail. 


It took about two weeks to build
the 40-foot box, and the effort to lower it by crane and cable to
the seafloor began late Thursday night. After it hit bottom Friday
afternoon, the crane gradually eased off to allow it to settle.


      "We are essentially taking a four-story building and lowering
it 5,000 feet and setting it on the head of a pin," Salvin said.


      The task became increasingly urgent as toxic oil crept deeper
into the bays and marshes of the Mississippi Delta.


      A sheen of oil began arriving on land last week, and crews have
been putting out floating barriers, spraying chemical dispersants
and setting fire to the slick to try to keep it from coming ashore.

But now the thicker, stickier goo - arrayed in vivid, brick-colored
ribbons - is drawing ever closer to Louisiana's coastal
communities.


      There are still untold risks and unknowns with the containment
box: The approach has never been tried at such depths, where the
water pressure is enough to crush a submarine, and any wrong move
could damage the leaking pipe and make the problem worse. 


The
seafloor is pitch black and the water murky, though lights on the
robots illuminate the area where they are working.


      If the box works, another one will be dropped onto a second,
smaller leak at the bottom of the Gulf.


      At the same time, crews are drilling sideways into the well in
hopes of plugging it up with mud and concrete, and they are working
on other ways to cap it.
     


 The well has been spewing about 200,000 gallons a day in the
nation's biggest oil spill since the nearly 11 million gallons lost
in the Exxon Valdez disaster in Alaska in 1989.


      The cause of the blast has not been determined, but
investigators have been focusing on the so-called blowout
preventer. Federal regulators told The Associated Press that they
are going to examine whether these last-resort cutoff valves on
offshore oil wells are reliable.
    


  At Hopedale, a fishing community in St. Bernard Parish, La.,
that has been a staging area for efforts to protect inlets and
bayous, Louisiana Gov. Bobby Jindal stepped out of a helicopter and
held aloft a tennis ball-size hunk of tarry oil he said a fisherman
had retrieved near the mouth of the Mississippi River.


      Oil was reported moving west of the Mississippi toward fishing
and resort villages on the Louisiana coast.


      After a flyover, Jindal described the orange and brown goo
surrounding Louisiana's Chandeleur Islands as resembling "a ring
around your bathtub."


      BP plans to sell the petroleum it recovers after separating out
the large amounts of natural gas and seawater - something that
industry experts said should not present much of a problem.


      "That's something they do for every oil well," said Don Van
Nieuwenhuise, director of petroleum geoscience programs at the
University of Houston. "They'll refine it and crack it and
everything, and by the time it gets in your gas tank, you'll never
even know it was in the water."


      The oil's planned destination, BP's Texas City, Texas, refinery,
has its own checkered history. An explosion there in 2005 killed 15
people and injured 170. Regulators last October hit BP with a
record $87 million fine for safety violations.
      

Gallery

Environmental News

A BP-chartered vessel lowered a
100-ton concrete-and-steel vault onto a ruptured well in the Gulf
of Mexico on Friday, an important step in a delicate and
unprecedented attempt to stop most of the gushing crude fouling the
sea.


Box to contain oil leak touches down on Gulf floor

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