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Jul 12, 2010 10:44 AM by Melissa Canone

BP To Put On New Cap On Well

NEW ORLEANS (AP) - BP expected to attach a tight, new cap Monday
on its busted oil well in the Gulf of Mexico, putting the oil giant
a few tantalizing steps closer to knowing whether the fix will be
enough to finally stop crude from gushing into the Gulf.
The new cap, a 150,000-pound metal stack known as "Top Hat
10," was about 300 feet from the point where it's supposed to
connect with the leaking well, BP Chief Operating Officer Doug
Suttles said in a Monday morning news briefing.
The BP executive was careful to keep expectations grounded,
stressing that once the cap is in place, it will take days to know
whether it can withstand the pressure of the erupting oil and feed
it through pipes to surface ships. The cap and vessels together
make up BP's plan to stop oil from spewing into the Gulf for the
first time since April 20.
"Until we have the cap on, securely fitted in place, and know
it's operating per the design, we have to recognize this is a
complex operation," Suttles said.
Once the cap is firmly in place, the company will begin
"shutting in" the well by closing perforated pipe at the top. The
company will be looking to see if the pressure rises inside the
cap. If it does, that means there are no other leaks, and the cap
is stopping oil from leaking into the Gulf.
But lower pressure readings may indicate leaking elsewhere in
the well. In that case, Suttles said, the company will work to
collect the leak with surface vessels and by dropping yet another
cap on top of the stack.
The testing should last about 48 hours, Suttles said.
Even if the tests show the cap is successfully holding in the
oil, it will not be the final fix for the blown well. That will
have to wait until one of two relief wells reaches the leaking well
from underground and can inject heavy drilling mud and cement to
form a permanent plug.
BP expects one relief well will do the job, but it's drilling a
second as a backup. Officials have offered varying estimates for
when that work will be done, but mid-August is the most common
timeframe.
Work on the new cap has been moving briskly, with the old, leaky
cap coming off the well on Saturday. One snag in the operation has
been a delay in the startup of a vessel called the Helix Producer,
which is supposed to connect to the well by a link below the cap,
ultimately collecting roughly 1 million gallons of oil a day.
The ship was supposed to begin collection Sunday, but two minor
technical glitches prevented that, Suttles said. He expects the
ship to begin Monday, reaching full capacity within two days or so.

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