Many policymakers think that the record before the BP oil spill was exemplary. In a House hearing Thursday, Rep. John J. "Jimmy" Duncan Jr. (R-Tenn.) said, "It's almost an astonishingly safe, clean history that we have there in the gulf." Interior Secretary Ken Salazar said the industry's "history of safety over all of those times" had provided the "empirical foundation" for U.S. policy.
But federal records tell a different story. They show a steady stream of oil spills dumping 517,847 barrels of petroleum -- which would fill an equivalent number of standard American bathtubs -- into the Gulf of Mexico between 1964 and 2009. The spills killed thousands of birds and soiled beaches as far away as Mexico's Yucatan Peninsula. Altogether, they poured twice as much as oil into U.S. waters as the Exxon Valdez tanker did when it ran aground in 1989.
The industry's record had been improving before the BP spill. In 2009, the largest one was about 1,500 barrels, about what BP's damaged well was leaking every hour before it was capped last week. But at least a handful of spills take place annually as a result of blowouts, hurricanes, lax pipeline maintenance, tanker leaks and human error, according to figures kept by the Minerals Management Service, now known as the Bureau of Ocean Energy Management, Regulation and Enforcement.
Moreover, in at least one key instance, the official statistics understate the actual quantities of oil that have leaked into the Gulf of Mexico. MMS statistics say that a 1970 blowout on a Shell Oil well that killed four people triggered a spill of 53,000 barrels. But Robert Bea, a University of California, Berkeley professor who at that time worked for Shell tracking the oil spill, says that the spill was 10 times that size and contaminated shorelines on the Yucatan Peninsula as well as the U.S. Gulf Coast.
"I see the numbers, and I shrug my shoulders," said Bea, who contributed to a report issued last week on the April 20 Deepwater Horizon accident. The 1970 Shell blowout happened on a production platform, he notes. "We knew what the production rates were," he said.
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Today regulators rely heavily on company estimates, although some environmentalists fear that the spill size might be underestimated.
Full Story - http://www.washingtonpost.com/wp-dyn/content/article/2010/07/23/AR2010072305603.html?hpid%3Dtopnews
Showing posts with label BP. Show all posts
Showing posts with label BP. Show all posts
Saturday, July 24, 2010
Friday, July 16, 2010
BP Says Oil Flow Has Stopped as Cap Is Tested
Oil stopped flowing around 2:25 p.m. when the last of several valves was closed on a cap at the top of the well, said Kent Wells, a senior vice president for BP.
The announcement came after a series of failed attempts to cap or contain the runaway well that tested the nation’s patience. Mr. Wells emphasized that pressure tests were being conducted to determine the status of the well, which is now sealed like a soda bottle. BP and the government could decide to allow the oil to flow again and try to collect all of it; they could allow the oil to flow and, if tests show the well can withstand the pressure from the cap, close the well during hurricanes; or they could leave the well closed permanently.
The last option seems unlikely, but whatever the decision, the cap is an interim measure until a relief well can plug the leak for good.
“I am very pleased that there’s no oil going into the Gulf of Mexico,” Mr. Wells said, “but we just started the test and I don’t want to create a false sense of excitement.”
That was not much of a risk along the Gulf Coast, where countless livelihoods have been put in jeopardy and fishermen frequently and gloomily remark that Prince William Sound has never been the same since the Exxon Valdez disaster.
“It’s like putting a Band-Aid on a dead man in my opinion,” said Jeff Ussury, 48, who considers his days as a crabber over for good. He doubted the news of the capping was even true.
“I started out kind of believing in them,” he said, “but I don’t believe in them at all anymore.”
Whether it was just the eye of the hurricane or the morning after the storm, the moment was a time to take stock of just how much damage had already been done since the deadly explosion on the Deepwater Horizon oil rig on the night of April 20.
For weeks, the BP spill camera — which along with terms like “top kill,” “containment dome” and “junk shot” made up a growing list of phrases that many people wish they had never learned — had shown a horrible chocolate plume of oil pouring upward from the broken blowout preventer, a symbol of government and corporate impotence. The plume has been a constant presence in the corner of TV screens, mocking reassurances from officials on the news programs who describe the latest attempt to stop the gushing.
But the view on Thursday afternoon was eerily tranquil, just the slate blue of the deep interspersed with small white particles floating across the screen. Though the exact amount of the oil that has poured out of the well may never be known, it was suddenly and for the first time a fixed amount. The disaster was, for a little while at least, finite.
At the White House, President Obama called the development a “positive sign,” though he cautioned that the operation was still in the testing phase. In statements, Louisiana officials, including Gov. Bobby Jindal, said they were “cautiously optimistic.”
Officials at all levels played down expectations. Thad W. Allen, the retired Coast Guard admiral who is coordinating the spill response, told reporters on Thursday that the cap was primarily meant to be used to shut the well during extreme weather.
“The intention of the capping stack was never to close in the well per se,” he said. “It creates the opportunity if we have the right pressure readings to shut in the well. It allows us to abandon the site if there is a hurricane.”
He said that after the test, the cap would be used to capture oil through surface ships — two that are on the site now and two more that will be in operation in a week or two. With all four collection ships in place, BP could capture all of the oil, estimated at 35,000 to 60,000 barrels per day.
Mr. Wells cautioned that the test could take 48 hours or more, as scientists study pressure readings from the cap. If pressure rises and holds, that would be a sign that the casing — the 13,000-foot string of pipe that lines the well bore — is undamaged.
But if the pressure stays low or falls, that would suggest the well is damaged. In that case, Mr. Wells said, the test probably would be stopped well ahead of schedule, valves would be reopened and collection systems that had been shut down for the test would start again.
“Depending on what the test shows us, we may need to open this well back up,” he said.
The test had been delayed by about two days, first when the government ordered a last-minute review of the procedure out of concern that, by allowing the buildup of pressure, the test itself might harm the well. A particular fear, experts said, was that it might cause a shallow blowout — damaging the well lining close to the seabed, which could allow oil and gas to escape into the gulf outside the well, making the spill worse.
By Wednesday afternoon, those concerns had been allayed and preparations were made to begin the test. But late that night, a hydraulic leak was discovered in part of the choke valve equipment, and the test was scrubbed.
Thursday afternoon the test began again, first with the shutting down of pipes that funneled oil and gas to two surface ships.
In even the most optimistic case, the BP oil spill is far, far from over.
Source -http://www.nytimes.com/2010/07/16/us/16spill.html
The announcement came after a series of failed attempts to cap or contain the runaway well that tested the nation’s patience. Mr. Wells emphasized that pressure tests were being conducted to determine the status of the well, which is now sealed like a soda bottle. BP and the government could decide to allow the oil to flow again and try to collect all of it; they could allow the oil to flow and, if tests show the well can withstand the pressure from the cap, close the well during hurricanes; or they could leave the well closed permanently.
The last option seems unlikely, but whatever the decision, the cap is an interim measure until a relief well can plug the leak for good.
“I am very pleased that there’s no oil going into the Gulf of Mexico,” Mr. Wells said, “but we just started the test and I don’t want to create a false sense of excitement.”
That was not much of a risk along the Gulf Coast, where countless livelihoods have been put in jeopardy and fishermen frequently and gloomily remark that Prince William Sound has never been the same since the Exxon Valdez disaster.
“It’s like putting a Band-Aid on a dead man in my opinion,” said Jeff Ussury, 48, who considers his days as a crabber over for good. He doubted the news of the capping was even true.
“I started out kind of believing in them,” he said, “but I don’t believe in them at all anymore.”
Whether it was just the eye of the hurricane or the morning after the storm, the moment was a time to take stock of just how much damage had already been done since the deadly explosion on the Deepwater Horizon oil rig on the night of April 20.
For weeks, the BP spill camera — which along with terms like “top kill,” “containment dome” and “junk shot” made up a growing list of phrases that many people wish they had never learned — had shown a horrible chocolate plume of oil pouring upward from the broken blowout preventer, a symbol of government and corporate impotence. The plume has been a constant presence in the corner of TV screens, mocking reassurances from officials on the news programs who describe the latest attempt to stop the gushing.
But the view on Thursday afternoon was eerily tranquil, just the slate blue of the deep interspersed with small white particles floating across the screen. Though the exact amount of the oil that has poured out of the well may never be known, it was suddenly and for the first time a fixed amount. The disaster was, for a little while at least, finite.
At the White House, President Obama called the development a “positive sign,” though he cautioned that the operation was still in the testing phase. In statements, Louisiana officials, including Gov. Bobby Jindal, said they were “cautiously optimistic.”
Officials at all levels played down expectations. Thad W. Allen, the retired Coast Guard admiral who is coordinating the spill response, told reporters on Thursday that the cap was primarily meant to be used to shut the well during extreme weather.
“The intention of the capping stack was never to close in the well per se,” he said. “It creates the opportunity if we have the right pressure readings to shut in the well. It allows us to abandon the site if there is a hurricane.”
He said that after the test, the cap would be used to capture oil through surface ships — two that are on the site now and two more that will be in operation in a week or two. With all four collection ships in place, BP could capture all of the oil, estimated at 35,000 to 60,000 barrels per day.
Mr. Wells cautioned that the test could take 48 hours or more, as scientists study pressure readings from the cap. If pressure rises and holds, that would be a sign that the casing — the 13,000-foot string of pipe that lines the well bore — is undamaged.
But if the pressure stays low or falls, that would suggest the well is damaged. In that case, Mr. Wells said, the test probably would be stopped well ahead of schedule, valves would be reopened and collection systems that had been shut down for the test would start again.
“Depending on what the test shows us, we may need to open this well back up,” he said.
The test had been delayed by about two days, first when the government ordered a last-minute review of the procedure out of concern that, by allowing the buildup of pressure, the test itself might harm the well. A particular fear, experts said, was that it might cause a shallow blowout — damaging the well lining close to the seabed, which could allow oil and gas to escape into the gulf outside the well, making the spill worse.
By Wednesday afternoon, those concerns had been allayed and preparations were made to begin the test. But late that night, a hydraulic leak was discovered in part of the choke valve equipment, and the test was scrubbed.
Thursday afternoon the test began again, first with the shutting down of pipes that funneled oil and gas to two surface ships.
In even the most optimistic case, the BP oil spill is far, far from over.
Source -http://www.nytimes.com/2010/07/16/us/16spill.html
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