BP Settlement Claims

Gulf Coast Disaster News

What went wrong at oil rig? A lot, probers find ‎

May 12, 2010, 5:40 pm

Associated Press
By H. JOSEF HEBERT and FREDERIC J. FROMMER

WASHINGTON — Bad wiring and a leak in what's supposed to be a "blowout preventer." Sealing problems that may have allowed a methane eruption. Even a dead battery, of all things.

New disclosures Wednesday revealed a complex cascade of deep-sea equipment failures and procedural problems in the oil rig explosion and massive spill that is still fouling the waters of the Gulf of Mexico and threatening industries and wildlife near the coast and on shore.

The public also got its first look on Wednesday of oil gushing from the broken pipe that rests nearly a mile under water as BP PLC, the well's operator, released a video taken by a remotely controlled camera. Oil flowing from a break in the yellowish pipe becomes lighter in color as it mixes with natural gas. Over the past 21 days more than 4 million gallons of oil have been released.

A litany of worrisome events and findings that were at play on the night of the well explosion and pipe rupture was described in internal corporate documents, marked confidential but provided to a House committee by BP and by the manufacturer of the safety device. Lawmakers released them at a House hearing.

A senior BP executive, Lamar McKay, cautioned, "It's inappropriate to draw any conclusions before all the facts are known." But the documents established the firmest evidence to date of the sequence of catastrophic events that led to the explosion and worsening spill, a series of failures more reminiscent of the loss of the space shuttle Challenger than the wreck of the Exxon Valdez.

Like the 1986 Challenger disaster, the investigation into the Gulf spill may well show that complex and seemingly failproof technical systems went wrong because of overlooked problems that interacted with each other in unexpected ways. In the 1989 Exxon Valdez disaster, a captain simply ran his ship onto a reef in Alaska's Prince William Sound, spilling nearly 11 million gallons of oil.

The April 20 BP rig explosion 40 miles off the Louisiana coast killed 11 people. Oil continuing to flow into Gulf waters threatens sensitive ecological marshes and wetlands and the region's fishing industry.

Congressional investigators revealed Wednesday that a key safety system, known as the blowout preventer, used in BP's oil-drilling rig in the Gulf had a hydraulic leak and a failed battery that probably prevented it from working as designed.

They said that BP documents and others also indicated conflicting pipe pressure tests should have warned those on the rig that poor pipe integrity may have been allowing explosive methane gas to leak into the well.

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