Sunday, May 30, 2010

Criminal Negligence: Despite Knowing It Had a Damaged Blowout Preventer, BP STILL Cut Corners By Removing the Single Most Important Safety Measure




Several weeks before the Gulf oil explosion, a key piece of safety equipment - the blowout preventer - was damaged.

As the Times of London reports:


[Mike Williams, the chief electronics technician on the Deepwater Horizon, and one of the last workers to leave the doomed rig] claimed that the blowout preventer was then damaged when a crewman accidentally moved a joystick, applying hundreds of thousands of pounds of force. Pieces of rubber were found in the drilling fluid, which he said implied damage to a crucial seal. But a supervisor declared the find to be “not a big deal”, Mr Williams alleged.

UC Berkeley engineering professor Bob Bea told 60 Minutes that a damaged blowout preventer not only may lead to a catastrophic accident like the Gulf oil spill, but leads to inaccurate pressure readings, so that the well operator doesn't know the real situation, and cannot keep the rig safe.


Bea also said that - despite the damage - BP ordered the rig operator to ignore an even more critical safety measure. Specifically, BP ordered the rig operator to remove the "drilling mud" - a heavy liquid used to keep oil and gas from escaping - before the well was sealed.
The importance of drilling mud is well-known. For example:

Frank Patton, a drilling engineer for the government's Mineral Management Service, which oversees offshore drilling, told a separate inquiry in Kenner, La., that drilling mud "is the most important thing in safety for your well."

And numerous eyewitnesses have confirmed that drilling mud was removed too early.

For example, as the Times-Picayune reports:

Bickford's client, who was working immediately next to the drill floor at the time of the explosion, claims the rig operators had already started pumping mud out of the riser....

"We had set the bottom cement plug," the [whistleblower] said. "At that point the BOP stack, the blowout preventer, was tested. I don't know the results of that test. However, it must have passed because at that point they elected to displace the marine riser from the vessel to the sea floor. They displaced all the mud out to the riser preparing to unlatch from the well two days later. So they displaced it with sea water."


***

Bickford said his client saw mud being pumped out of the riser and onto boats that normally collect the mud in tanks. Another lawyer, Stuart Smith, said he represents fishermen who witnessed the explosion and saw the mud being extracted beforehand.