Then only the final steps of the process remained While these were conducted no

Then only the final steps of the process remained

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satisfactory. Then only the final steps of the process remained. While these were conducted no one noticed that the pressure continued to rise so the pumps were kept shut in the belief that the pressure would remain constant. At this point, the system had reached overpressure and was now spewing mud across the rig floor. The safety system was no longer in place but it was not until the first explosion the crew thought of using the emergency disconnect system. Nonetheless, the crew and captain hesitated as they needed final permission from the offshore installation manager before anything could be done and by the 25 The excerpts are taken from a letter to Tony Hayward signed by Henry A. Waxman, Chairman of Energy and Commerce Committee and Bart Stupak, Chairman of Subcommittee on Oversight and Investigations in preparation for Tony Hayward's congressional testimony reported in The Oil Drum, BP Deepwater Oil Spill - Energy and Commerce Committee's Letter Outlining Risky Practices in Anticipation of Hayward's Thursday Testimony, June 15, 2010. 26 Deep Water The Gulf Disaster on the Future of Offshore Drilling, National Commission of the BP Deepwater Horizon Oil Spill and Offshore Drilling, Report to the President, January 2011. 714-017-1 Please note that you are not permitted to reproduce or redistribute it for any other purpose. You are permitted to view the material on-line and print a copy for your personal use until 24-Mar-2021. Purchased for use by Alan Owen on 24-Mar-2020. Order ref F378754. Educational material supplied by The Case Centre Copyright encoded A76HM-JUJ9K-PJMN9I Order reference F378754
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10 time authorization was obtained, the system no longer worked because mud and gas continued to stream onto the rig causing several explosions and fires. After the initial explosion the wellhead continued to leak methane gas and mud onto the rig feeding the fire that finally caused the oil rig to collapse. Then a geyser of seawater shot 75 meters into the air onto the rig followed by a combined eruption of mud, gas and water. The evaporating methane gas ignited in a series of explosions causing a mere firestorm as various attempts to activate the installed blowout preventer failed. 22 There were 126 people on board the rig when the explosion happened of which only 7 were official BP employees whereas another 79 crew members worked for Transocean. The remaining 40 people represented other companies engaged in the operations including Anadarko , an oil exploration company specialized in deepwater drilling, and Halliburton , a major oil field services company. 27 11 people were killed in the explosion before the rig was evacuated and 18 injured crew members airlifted for medical treatment. Deepwater Horizon sank on April 22, 2010 after burning for almost 36 hours with the remains of the rig falling to the seafloor at a depth of 1,500 meters some 400 meters northwest of the initial well.
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