A surge of high-pressure methane gas, released from the wellbore, traveled up the drill string and into the marine riser. Evidence showed that warnings from rig crew members about unstable pressure readings were ignored or not escalated effectively.
Speed Over Safety: How Cost-Cutting Choices Sparked the Deepwater Horizon Blast
The shear rams, which were supposed to cut through the drill pipe and seal the well, were likely unable to function because the pipe was not properly centered within the BOP housing. This gas mixture ignited upon reaching the rig’s engine room, creating a fireball that engulfed the platform.
Critical Decisions and Design Flaws Technical investigations identified a series of poor decisions and design flaws that directly contributed to the blowout. Investigations revealed that the BOP’s control systems, which should have automatically closed the valves, did not function as intended.
Speed Over Safety: How Cost-Cutting Choices Sparked the Deepwater Horizon Blowout
The Deepwater Horizon oil spill, which began on April 20, 2010, remains the largest marine oil spill in history. Misinterpreted Pressure Test A pivotal moment occurred hours before the explosion when the crew conducted a pressure test known as a "negative pipe test" (or "shoe test").
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