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May 17, 2010 7:00 AM by Sharlee Jacobs

Worry That Gulf Oil Spreading into Major Current

NEW ORLEANS (AP) - Engineers finally figured out how to siphon
some of the oil that has been spewing into the Gulf for almost a
month, but it could be too late to stop the ooze from reaching a
major ocean current that could carry it through the Florida Keys
and up the East Coast.
After weeks of failed solutions, BP PLC crews on Sunday hooked
up a mile-long tube to funnel the crude from a blown well into a
tanker ship. However, millions of gallons of crude are already in
the Gulf of Mexico.
A researcher told The Associated Press that computer models show
the oil may have already seeped into a powerful water stream known
as the loop current, which could propel it into the Atlantic Ocean.
A boat is being sent later this week to collect samples and learn
more.
"This can't be passed off as 'it's not going to be a
problem,"' said William Hogarth, dean of the University of South
Florida's College of Marine Science. "This is a very sensitive
area. We are concerned with what happens in the Florida Keys."
BP PLC engineers remotely guiding robot submersibles had worked
since Friday to place the tube into a 21-inch pipe nearly a mile
below the sea. After several setbacks, it was working, though
officials warned that it was too early to measure how much crude
was being collected and acknowledged it was no panacea.
"It's a positive move, but let's keep in context," said Kent
Wells, BP's senior vice president for exploration and production.
"We're about shutting down the flow of oil from this well."
BP failed in several previous attempts to stop the leak, trying
in vain to activate emergency valves and lowering a 100-ton
container that got clogged with icy crystals. They have used
chemicals to disperse the oil. Tar balls have been sporadically
washing up on beaches in several states, including Mississippi
where at least 60 have been found. But so far, oil has not washed
ashore in great quantities.
Hogarth said a computer model shows oil has already entered the
loop current, while a second shows the oil is 3 miles from it -
still dangerously close. The models are based on weather, ocean
current and spill data from the U.S. Navy and the National Oceanic
and Atmospheric Administration, among other sources.
Hogarth said it's still too early to know what specific amounts
of oil will make it to Florida, or what damage it might do to the
sensitive Keys or beaches on Florida's Atlantic coast. He said
claims by BP that the oil would be less damaging to the Keys after
traveling over hundreds of miles from the spill site were not
mollifying.
Damage is already done, with the only remaining question being
how much more is to come, said Paul Montagna, from the Harte
Research Institute for Gulf of Mexico Studies at Texas A&M
University.
"Obviously the quicker they plug this the better, but they are
already having a tremendous effect on the environment," he said.
"In the end, we have to figure out how much is actually pouring
into the Gulf."
BP had previously said the tube, if successful, was expected to
collect most of the oil gushing from the well.
Crews will slowly ramp up how much it siphons over the next few
days. They need to move slowly because they don't want too much
frigid seawater entering the pipe, which could combine with gases
to form the same ice-like crystals that doomed the previous
containment effort.
Two setbacks over the weekend illustrate how delicate the effort
is. Early Sunday, hours before a steady connection was made,
engineers were able to suck a small amount of oil to the tanker,
but the tube was dislodged. The previous day, equipment used to
insert the tube into the gushing pipe at the ocean floor had to be
hauled to the surface for readjustment.
The first chance to choke off the flow for good should come in
about a week. Engineers plan to shoot heavy mud into the crippled
blowout preventer on top of the well, then permanently entomb the
leak in concrete. If that doesn't work, crews also can shoot golf
balls and knotted rope into the nooks and crannies of the device to
plug it, Wells said.
The final choice to end the leak is a relief well, but it is
more than two months from completion.
Top officials in President Barack Obama's administration
cautioned that the tube "is not a solution."
"We will not rest until BP permanently seals the wellhead, the
spill is cleaned up, and the communities and natural resources of
the Gulf Coast are restored and made whole," Secretary of Homeland
Security Janet Napolitano and Secretary of the Interior Ken Salazar
said in a joint statement.
Meanwhile, scientists warned of the effects of the oil that has
already leaked into the Gulf. Researchers said miles-long
underwater plumes of oil discovered in recent days could poison and
suffocate sea life across the food chain, with damage that could
endure for a decade or more.
Researchers have found more underwater plumes of oil than they
can count from the well, said Samantha Joye, a professor of marine
sciences at the University of Georgia.
The hazards of the plume are twofold. Joye said the oil itself
can prove toxic to fish, while vast amounts of oxygen are also
being sucked from the water by microbes that eat oil. Dispersants
used to fight the oil are also food for the microbes, speeding up
the oxygen depletion.
"So, first you have oily water that may be toxic to certain
organisms and also the oxygen issue, so there are two problems
here," said Joye, who's working with the scientists who discovered
the plumes in a recent boat expedition. "This can interrupt the
food chain at the lowest level, and will trickle up and certainly
impact organisms higher. Whales, dolphins and tuna all depend on
lower depths to survive."
Oil has been spewing since the rig Deepwater Horizon exploded
April 20, killing 11 people and sinking two days later. The
government shortly afterward estimated the spill at 210,000 gallons
a day, a figure that has since been questioned by some scientists
who fear it could be far more. BP executives have stood by the
estimate while acknowledging there's no way to know for sure.
Steve Shepard, who chairs the Gulf Coast group of the Sierra
Club in Mississippi, said the solution by BP to siphon some of the
oil is "hopefully the beginning of the end of this leak."
He, like others, is worried that much more than the estimate is
leaking and that the long-term damage is hard to measure.
"We have a lot to be worried about," he said. "We are in
uncharted territory."

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