Carl Wallbank <<carlwallbank>>
writes:

Whilst there was so many things that had already gone wrong with
the Deepwater well in the Gulf prior to the need to use the Blow Out Preventer
(BOP), but this does clearly illustrate why they were unable to shut in the well
and make it less of a disaster. Tool joint positioning in the BOP is so critical
and this certainly highlights it:
http://www.deepwater.com/fw/main/Blow-Out-Preventer-%28BOP%29-1079.html.