Planet Gore

BP Had Safety Concerns Eleven Months Prior to the Disaster

New York Times:

WASHINGTON — Internal documents from BP show that there were serious problems and safety concerns with the Deepwater Horizon rig far earlier than those the company described to Congress last week.

The problems involved the well casing and the blowout preventer, which are considered critical pieces in the chain of events that led to the disaster on the rig.

The documents show that in March, after several weeks of problems on the rig, BP was struggling with a loss of “well control.” And as far back as 11 months ago, it was concerned about the well casing and the blowout preventer.

On June 22, for example, BP engineers expressed concerns that the metal casing the company wanted to use might collapse under high pressure.

“This would certainly be a worst-case scenario,” Mark E. Hafle, a senior drilling engineer at BP, warned in an internal report. “However, I have seen it happen so know it can occur.”

The company went ahead with the casing, but only after getting special permission from BP colleagues because it violated the company’s safety policies and design standards. The internal reports do not explain why the company allowed for an exception. BP documents released last week to The Times revealed that company officials knew the casing was the riskier of two options.

Though his report indicates that the company was aware of certain risks and that it made the exception, Mr. Hafle, testifying before a panel on Friday in Louisiana about the cause of the rig disaster, rejected the notion that the company had taken risks.

“Nobody believed there was going to be a safety issue,” Mr. Hafle told a six-member panel of Coast Guard and Minerals Management Service officials.

“All the risks had been addressed, all the concerns had been addressed, and we had a model that suggested if executed properly we would have a successful job,” he said.

Mr. Hafle, asked for comment by a reporter after his testimony Friday about the internal report, declined to answer questions.

BP’s concerns about the casing did not go away after Mr. Hafle’s 2009 report.

In April of this year, BP engineers concluded that the casing was “unlikely to be a successful cement job,” according to a document, referring to how the casing would be sealed to prevent gases from escaping up the well.

The document also says that the plan for casing the well is “unable to fulfill M.M.S. regulations,” referring to the Minerals Management Service.

A second version of the same document says “It is possible to obtain a successful cement job” and “It is possible to fulfill M.M.S. regulations.”

Andrew Gowers, a BP spokesman, said the second document was produced after further testing had been done.

The rest here.

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