A second pipe has been found inside the main pipe and may have caused the BOP to fail

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A second pipe has been found inside the main pipe and may have caused the BOP to fail

The gushing BP oil well is a mystery still unfolding, and a team of scientists from the Energy Department discovered a new twist: Their sophisticated imaging equipment detected not one but two drill pipes, side by side, inside the wreckage of the well's blowout preventer on the bottom of the Gulf of Mexico.

The Deepwater Horizon rig, which drilled the well, used a single pipe, connected in segments, to bore 13,000 feet below the ocean floor. But when workers cut into the wreckage to install a containment cap this month, sure enough, they found two pipes.

The discovery suggested that the force of the erupting petroleum from BP's well on April 20 was so violent that it sent pipe segments hurtling into the blowout preventer, like derailing freight cars.

It also offered a tantalizing theory for the failure of the well's last line of defense, the powerful pinchers called shear rams inside the blowout preventer that should have cut the pipe and stopped the rising oil and gas from reaching the Deepwater Horizon 5,000 feet above. Drilling experts say those rams, believed to be partially deployed, could have been thwarted by the presence of a second pipe.
... Quote:
We used a diamond saw and we got inside. We found there was actually two sets of drill pipe there.
said retired Adm. Thad Allen, the top U.S. Coast Guard official.

It "presumably fell down beside it as a result of the explosion and the riser pipe being bent over," Allen said. He noted that the second pipe does not have oil shooting from it.

BP officials said late Friday that they believe the second pipe is drill pipe. Pictures show it is similar in diameter to the known drill pipe.

 http://articles.latimes.com...

 http://www.nola.com/news/gu...

two-pipes-found.jpg - 21.5kb
By netchicken: posted on 11-7-2010








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