The Deepwater Horizon accident was found to have multiple antecedents that caused this tragedy. Specifically, a sequence of eight safety barriers that were breached led to the explosion which killed eleven people and caused widespread pollution throughout the Gulf of Mexico. At first the annulus cement barrier was installed improperly and did not isolate the hydrocarbons coming from the well. The shoe track barrier did not isolate the hydrocarbons. As a consequence these two events allowed hydrocarbons to rise up the well and aboard the Deepwater Horizon rig. The negative pressure test was incorrectly interpreted. The influx of hydrocarbons was not recognized until it was too late. Well control response actions failed to regain the control of the well. This led the well flow to be diverted to the mud gas separator causing gas to
The Deepwater Horizon accident was found to have multiple antecedents that caused this tragedy. Specifically, a sequence of eight safety barriers that were breached led to the explosion which killed eleven people and caused widespread pollution throughout the Gulf of Mexico. At first the annulus cement barrier was installed improperly and did not isolate the hydrocarbons coming from the well. The shoe track barrier did not isolate the hydrocarbons. As a consequence these two events allowed hydrocarbons to rise up the well and aboard the Deepwater Horizon rig. The negative pressure test was incorrectly interpreted. The influx of hydrocarbons was not recognized until it was too late. Well control response actions failed to regain the control of the well. This led the well flow to be diverted to the mud gas separator causing gas to