Bladder Effect Deepwater Horizon

Sworn testimony actually showed the opposite: that the bladder effect idea, which has been scientifically debunked, was actually suggested by the Transocean crew to Vidrine as a plausible... Despite all the efforts of floating firefighters, Deepwater Horizon could not be saved. Its structures began to buckle and by the morning of 22 April the rig had keeled over and sunk.

The truth is more complicated. The "bladder effect" hypothesis was raised by a Transocean crew member , not by BP, to explain ambiguities in the second negative test, not the first. The crew of Deepwater Horizon were in the process of sealing the well (known as capping it off) before getting ready to move the drilling rig to a new location.

As part of this process, the pressure balance in the well is tested to see whether pressure is increasing. BP and Transocean contend the rigs crew accepted the anomalous test results at the urging of the rigs drilling supervisor, Jason Anderson, who according to trial evidence cited the bladder... In Deepwater Horizon, Vidrine explains the bladder effect is causing false readings.

The truth is that it was actually a Transocean employee who suggested this unscientific explanation for the high-pressure readings, and together the team determined they were false. Mr Vidrine is shown citing a spurious phenomenon called the bladder effect to explain why the test is good, even though some of the pressure readings are worrying. That scene is an invention:...

The movie shows confused rig staff trying to interpret the test results, but offers no explanation. Animation of the Macondo/Deepwater Horizon blowout, produced by the U.S. Chemical Safety...

Every industry expert the investigative team met with dismissed the so-called bladder effect as a fiction that could not have accounted for the pressure readings the men saw on April 20. Negative pressure test showed 1,400 psi of well pressure for three hourscrew dismissed it as 'bladder effect' Cement barrier failed to seal hydrocarbons; nitrified foam cement formulation was flawed and inadequately tested