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Official, significant pressure discrepancies were observed in at least two of these tests which were conducted just hours before the explosion. transocean, one of the world's largest operator of drilling rigs, says it has no reason to believe that the rigs fail-safe device called a blowout preventer, was not fully operational. but we've learned from cameron, the manufacturer of the blowout preventer, that the device had a leak in a crucial hydraulic system and a defectively configured rap. >> internal transocean documents reveal the fail safe blow outpreventer had 260 known scenarios for failu...

Direction of the well owner and in accord dance with mms requirements. we understand that halliburton was instructed to record drill pipe pressure during this test. after being advised by the drilling contract of a negative test had been completed, halliburton cementing personnel were placed on standby. >> today congressman henry waxman revealed the truth about the supposedly fail-safe blowout preventer and the cementing test halliburton described so positively yesterday. >> halliburton, one of the world's largest oil service companies, says it had secured the well through a procedure called c...

Official, significant pressure discrepancies were observed in at least two of these tests which were conducted just hours before the explosion. transocean, one of the world's largest operator of drilling rigs, says it has no reason to believe that the rigs fail-safe device called a blowout preventer, was not fully operational. but we've learned from cameron, the manufacturer of the blowout preventer, that the device had a leak in a crucial hydraulic system and a defectively configured rap. >> internal transocean documents reveal the fail safe blowout preventer had 260 known scenarios for failu...