[QUOTE=bigmoose;35151]There are sure as h_ll two pipes within the riser. I blew the picture up, and tried to do some scaling. The resolution was not the best to determine if there was a fold over in the larger internal pipe to the right.
Scaling off the riser and assuming it was originally 21 inch pipe gives the two approximate sizes for the internal pipes:
Left internal pipe approximately 5.5 inches in diameter and the right internal pipe approximately 6.0 inches in diameter.
The larger DP per the BP document is 5.5 inches in diameter. That is likely the left internal pipe. The 6 incher is a bit of an anomaly, unless as others have said it is the 7 inch lower production liner. BP does say there was a 6 5/8 DP down to 4117 feet crossing to 5.5 inch to 7567 feet, crossing to 3.5 DP ending at 8367. The only two pieces of pipe near our measured 6 inch is the larger DP and the 7 inch lower production liner.
Either way, something has come apart in a significant way.
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PS: Let’s try to not let the astroturfers dilute this thread with their desired off topic “banter.” Let’s keep the course steady as she goes…[/QUOTE]
Another unlikely scenario is that with other unknown items in the BOP (ie: casing) the sheers did cut through the DP, allowing this twin fish situation to happen.