"...The chief mechanic on the Deepwater Horizon testified Wednesday that he was at a planning meeting 11 hours before the rig exploded at which the BP company man overruled drillers from rig owner Transocean and insisted on displacing protective drilling mud from the riser that connected the rig to the oil well.
"..."I recall a skirmish between the company man, the OIM (offshore installation manager), the tool-pusher and the driller," said Doug Brown, one of 115 rig workers who survived the April 20 disaster. "The driller was outlining what would be taking place, whereupon the company man stood up and said, 'No, we'll be having some changes to that.' It had to do with displacing the riser for later on. The OIM, tool-pusher and driller disagreed with that, but the company man said, 'Well, this is how it's gonna be,' and the tool-pusher, driller and OIM reluctantly agreed."
"...The implication was that the Transocean employees expected they might have to take emergency action because of BP's push to remove the drilling mud.
"...Before Brown came to the witness stand at the hearings in Kenner, a ship captain with 15 years of drilling experience told the joint investigative panel that he doesn't know why a rig would displace the protective column of heavy mud with light seawater before closing off a well.
Deliberate sabotage the reason for the Gulf oil disaster?