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Unformatted text preview: could direct fluids coming up from the well. 46 At this time, crew members likely realized that they had lost control of the well and attempted to regain control of the well by activating the BOP stack’s upper annular preventer and the upper variable bore ram. 47 The mud‐gas separator, to which the crew had diverted flow from the well, was quickly overwhelmed and failed, causing a gas plume to fill the rig floor. The gas quickly ignited, causing the first explosion on the rig at 9:49 p.m. Approximately ten seconds later, a second larger explosion occurred and the fire onboard the rig spread rapidly. Shortly after the second explosion, the rig lost power and experienced a total blackout. At approximately 9:56 p.m., the rig’s subsea engineer attempted to activate the BOP stack’s emergency disconnect system from the BOP panel on the rig’s bridge. The emergency disconnect system is designed to activate the BOP stack’s blind shear ram and disconnect the rig’s lower marine riser package (“LMRP”) from the well. The BOP panel apparently indi...
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This note was uploaded on 01/18/2014 for the course BEPP 305 taught by Professor Nini during the Fall '11 term at UPenn.

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