The Big Red Button: Prudhoe Bay Shutdown

[VisibilityMissing]

Wow . . .

This is pretty unprecedented, I've never heard of this happening, at least in the twenty years since I moved to Alaska . . . I worked on different parts of this field during the summers when I was in college. There would have to be something really wrong for them to shut the field down.

Aug 6, 9:03 PM EDT

BP Shutting Down Large Alaska Oil Field

ANCHORAGE, Alaska (AP) -- BP Exploration Alaska, Inc. began shutting down the Prudhoe Bay oil field Sunday after discovering unexpectedly severe corrosion and a small spill from a transit pipeline.

Prudhoe Bay represents about half of Alaska's oil production and about 8 percent of U.S. production, according to the U.S. Energy Information Administration.

Company officials said it would take days to shut down the oil field. Once completed, it's expected to reduce oil field production by 400,000 barrels a day.

"We regret that it is necessary to take this action and we apologize to the nation and the State of Alaska for the adverse impacts it will cause," BP America Chairman and President Bob Malone said in a prepared statement.

Company officials said they did not know how long the field would remain closed.

"We will not resume operation of the field until we and government regulators are satisfied that they can be operated safely and pose no threat to the environment," Malone said.

Officials learned Friday that data from an internal sensing device found 16 anomalies in 12 locations in an oil transit line on the eastern side of the field. Follow-up inspections found "corrosion-related wall thinning appeared to exceed BP criteria for continued operation," the company said in a release.

That's when workers also found a small spill, estimated to be about 4 to 5 barrels. A barrel contains 42 gallons of crude oil.

BP says the spill has been contained and clean up efforts are under way. State and federal officials have been informed of the decision.

BP said it was sending additional resources from across the state and North America to hasten the inspection of the remaining transit lines. About 40 percent of the lines have been inspected.

BP previously said it would replace a 3-mile segment of pipeline following inspections conducted after up to 267,000 gallons of oil spilled onto the frozen ground about 250 miles above the Arctic Circle in March.

House Speaker John Harris said it was admirable that BP took immediate action, although it's sure to hurt state coffers.

"This state cannot afford to have another Exxon Valdez," said Harris, R-Valdez.

[Zaaphod]

Interesting. It's not something they wanted to do obviously. I wonder how long it'll take before they fix the problem...

[VisibilityMissing]

BP Exploration isn't giving any hints . . . but here's something interesting: They're shutting down the eastern side of the field first, then the western side. That was the side that was originally controlled by ARCO (Atlantic-Richfield), and is probably the older side of the field . . .

chicagotribune.com >> Business

BP Shuts Down Major Alaskan Oil Field

By MARY PEMBERTON
Associated Press Writer
Published August 7, 2006, 6:40 AM CDT

ANCHORAGE, Alaska -- Oil company BP has indefinitely shut down the nation's biggest oilfield after finding a pipeline leak, removing about 8 percent of U.S. oil production and stoking fears that already high gas prices will shoot up further.

Steve Marshall, president of BP Exploration Alaska Inc., said Sunday night that the eastern side of Prudhoe Bay would be shut down first, an operation anticipated to take 24 to 36 hours. The company will then move to shut down the west side, a move that could close more than 1,000 Prudhoe Bay wells.

Once the field is shut down, BP said oil production will be reduced by 400,000 barrels a day. That's close to 8 percent of U.S. oil production or about 2.6 percent of U.S. supply including imports, according to data from the U.S. Energy Information Administration.

BP officials said they didn't know how long the Prudhoe Bay field would be off line. "I don't even know how long it's going to take to shut it down," said Tom Williams, BP's senior tax and royalty counsel.

The shutdown comes at an already worrisome time for the oil industry, with supply concerns stemming both from the hurricane season and instability in the Middle East.

A 400,000-barrel per day reduction in output would have a major impact on oil prices, said Tetsu Emori, chief commodities strategist at Mitsui Bussan Futures in Tokyo. A barrel contains 42 gallons of crude oil.

"Oil prices could increase by as much as $10 per barrel given the current environment," Emori said. "But we can't really say for sure how big an effect this is going to have until we have more exact figures about how much production is going to be reduced."

But Victor Shum, an energy analyst with Purvin & Gertz in Singapore, said he expected the impact to be minimal since crude inventories are high.

"So while this won't have any immediate impact on U.S. supplies, the market is in very high anxiety. So any significant disruption, traders will take that into account, even though there is no threat of a supply shortage."

Light, sweet crude for September delivery was up $1.23 to $75.99 a barrel in mid-afternoon Asian electronic trading Monday on the New York Mercantile Exchange.

Marshall said tests Friday indicated that there were 16 anomalies in 12 areas in an oil transit line on the eastern side of Prudhoe Bay. Tests found losses in wall thickness of between 70 and 81 percent. Repair or replacement is required if there is more than an 80 percent loss.

"The results were absolutely unexpected," Marshall said.

BP America Chairman and President Bob Malone said Prudhoe Bay will not resume operating until the company and government regulators are satisfied it can run safely without threatening the environment.

"We regret that it is necessary to take this action and we apologize to the nation and the State of Alaska for the adverse impacts it will cause," Malone said in a statement.

The shutdown comes six months after the North Slope's biggest ever oil spill was discovered on a Prudhoe Bay transit line. Some 267,000 gallons of oil spilled. BP installed a bypass on that line in April with plans to replace the pipe. Only one of BP's three transit lines is operating.

While BP suspects corrosion in both damaged lines, they can't say for sure until further tests are complete. Workers also found a small spill, estimated to be about 4 to 5 barrels, which has been contained and clean up efforts are under way, BP said.

BP puts millions of gallons of corrosion inhibitor into the Prudhoe Bay lines each year. It also examines pipes by taking X-rays and ultrasound images.

BP has a 26 percent stake in the Prudhoe Bay field, meaning its own production would be cut by 100,000 barrels a day, or around 2.5 percent of the company's worldwide production, said spokesman David Nicholas. He declined to provide any forecast on the impact of the shutdown on earnings.

BP's shares dropped 2 percent to 623 pence ($11.89) on the London Stock Exchange.

A prolonged Prudhoe Bay shutdown would be a major blow to domestic oil production, but even a short one could be crippling to Alaska's economy.

Alaska House Speaker John Harris said it was admirable that BP took immediate action, although it's sure to hurt state coffers. "This state cannot afford to have another Exxon Valdez," said Harris, R-Valdez.

The Exxon Valdez tanker emptied 11 million gallons of crude oil into Prince William Sound in 1989, killing hundreds of thousands of birds and marine animals and soiling more than 1,200 miles of rocky beach in nation's largest oil spill.

* __

Associated Press Writer Matt Volz in Juneau contributed to this report.

* __

On the Net:

http://alaska.bp.com