[BITList] dnv farce

x50type at cox.net x50type at cox.net
Tue Apr 5 05:38:36 BST 2011


this is what dnv came up with...............................?
‘farcical’ springs to mind!
the hearings are usually televised, so far this one hasn’t – wish it was; so far the dnv report appears to be of little help!

ct

        But in testimony before a joint Marine Board panel of Coast Guard and Interior Department investigators in Metairie on Monday, lead forensic investigator Greg Kenney said his team didn't have time to disassemble and review the valves that got the pipe stuck in the first place. Some previous testimony by rig workers indicated that a valve at the top of the BOP was open when the blowout happened, but the Det Norske Veritas report assumes it was closed, causing the pipe to bend.

        And yet, the evidence recovered from the BOP showed no physical signs of any bowed pipe. Kenney said the assumption that the pipe did bow was based on computer models. Det Norske Veritas' project manager, Neil Thompson, said the pipe was found straight when the BOP was lifted to the surface in September because it was elastic and returned to its natural position some time after the event. [drill pipe has a ‘natural’ position?—ct]

        Det Norske Veritas' project manager, Neil Thompson, answers question during the Deepwater Horizon joint investigation hearings Monday. 
        But under questioning by a lawyer for BOP manufacturer Cameron International, Thompson acknowledged that one of the models depicted in the forensic report showed the pipe in the wrong position, adding again to the uncertainties in the Det Norske Veritas report.

        Thompson also admitted his team never conducted tests to determine flow pressures or figure out what forces might have caused the pipe to bend inside the BOP in the first place. One computer model showed that it would have taken an incredible 113,000 pounds-per-square-inch of force on the pipe to bend it.
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