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BP Official Admits to Damage BENEATH THE SEA FLOOR

As I noted Tuesday, there is growing
evidence that BP's oil well - technically called the "well casing" or
"well bore" - has suffered damage beneath the level of the sea floor. The
evidence is growing stronger and stronger that there is substantial
damage beneath the sea floor. Indeed, it appears that BP officials
themselves have admitted to such damage. This has enormous impacts on
both the amount of oil leaking into the Gulf, and the prospects for
quickly stopping the leak this summer. On May 31st, the Washington Post noted :   Sources
at two companies involved with the well said that BP also discovered
new damage inside the well below the seafloor and that, as a result,
some of the drilling mud that was successfully forced into the well was
going off to the side into rock formations.   "We discovered things that were broken in the sub-surface," said a BP official who spoke on the condition of anonymity. He said that mud was making it "out to the side, into the formation." On June 2nd, Bloomberg pointed out : Plugging
the well is another challenge even after BP successfully intersects it,
Robert Bea, a University of California Berkeley engineering professor,
said. BP has said it believes the well bore to be damaged , which could hamper efforts to fill it with mud and set a concrete plug, Bea said. Bea is an expert in offshore drilling and a high-level governmental adviser concerning disasters. On the same day, the Wall Street Journal noted that there might be a leak in BP's well casing 1,000 feet beneath the sea floor: BP
PLC has concluded that its "top-kill" attempt last week to seal its
broken well in the Gulf of Mexico may have failed due to a
malfunctioning disk inside the well about 1,000 feet below the ocean floor .   ***   The
broken disk may have prevented the heavy drilling mud injected into the
well last week from getting far enough down the well to overcome the
pressure from the escaping oil and gas, people familiar with BP's
findings said. They said much of the drilling mud may also have escaped
from the well into the rock formation outside the wellbore. On June 3rd, The Canadian Press quoted
the top government official in charge of the response to the oil spill
- Admiral Thad Allen, the commandant of the Coast Guard - as pointing
to the same possibility: The failure of the so-called top kill procedure - which entailed pumping mud into the well at high velocity - suggested " there
actually could be something wrong with the well casing, and there could
be open communication in the strata or the rock formations below the
sea floor ," Allen said. On
June 7th, Senator Bill Nelson told MSNBC that he's investigating
reports of oil seeping up from additional leak points on the seafloor: Senator
Bill Nelson (D-FL): Andrea we’re looking into something new right now,
that there’s reports of oil that’s seeping up from the seabed… which
would indicate, if that’s true, that the well casing itself is actually
pierced… underneath the seabed . So, you know, the problems could be just enormous with what we’re facing.   Andrea
Mitchell, MSNBC: Now let me understand better what you’re saying. If
that is true that it is coming up form that seabed, even the relief
well won’t be the final solution to cap this thing. That means that
we’ve got oil gushing up at disparate places along the ocean floor.   Sen. Nelson: That is possible, unless you get the plug down low enough, below where the pipe would be breached.     Indeed, loss of integrity in the well itself may explain why BP is drilling its relief wells more than ten thousand feet beneath the leaking pipes on the seafloor (and see this ). Yesterday, recently-retired Shell Oil President John Hofmeister said that the well casing below the sea floor may have been compromised:   [Question]
What are the chances that the well casing below the sea floor has been
compromised, and that gas and oil are coming up the outside of the well
casing, eroding the surrounding soft rock. Could this lead to a
catastrophic geological failure, unstoppable even by the relief wells?   John Hofmeister : This is what some people fear has occurred. It is also why the "top kill" process was halted .
If the casing is compromised the well is that much more difficult to
shut down, including the risk that the relief wells may not be enough.
If the relief wells do not result in stopping the flow, the next and
drastic step is to implode the well on top of itself, which carries
other risks as well. As noted yesterday in The Engineer magazine ,
an official from Cameron International - the manufacturer of the
blowout preventer for BP's leaking oil drilling operation - noted that
one cause of the failure of the BOP could have been damage to the well
bore: Steel casing or casing hanger could have been ejected from the well and blocked the operation of the rams. Oil industry expert Rob Cavner believes that the casing might be damaged beneath the sea floor, noting: The
real doomsday scenario here… is if that casing gives up, and it does
come through the other strings of pipe. Remember, it is concentric pipe
that holds this well together. If it comes into the formation,
basically, you‘ve got uncontrolled [oil] flow to the sea floor. And
that is the doomsday scenario. Cavner also said BP must "keep the well flowing to minimize oil and gas going out into the formation on the side":   And prominent oil industry insider Matt Simmons believes that the well
casing may have been destroyed when the oil rig exploded. Simmons was
an energy adviser to President George W. Bush, is an adviser to the Oil
Depletion Analysis Centre, and is a member of the National Petroleum
Council and the Council on Foreign Relations. On May 26th, Simmons referred to this issue on MSNBC: On May 27th, Simmons again addressed this issue on MSNBC: And he referred to it again on Bloomberg on May 28th: And again on MSNBC on June 7th : We have a right to know what's really going on. Given
the impact on America's people, natural resources and economy, BP and
the government must fully disclose the amount of damage underneath the
sea floor, and what that means for the efforts to cap the well.

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