Question for BP: How Close Are We to the Unthinkable?

Day 59: Yesterday was a long day of grandstanding at the Congressional hearings with Tony Hayward. The legislators threw a disorganized "junk shot" of questions at Hayward, ranging from questions about the health impacts on cleanup workers to specific questions about casing and cement integrity on the fatal night on the Deepwater Horizon. Rep Welsh noted that Hayward said "I don't know" 65 times. (With others, I blogged about it for the Lehrer News hour.)

The most important question (and one Tony CAN answer) was only hinted at by Rep. Scalise when he asked if the casing around the well was cracking. Hayward's response was a variant of "I don't know" because, he said, they can't see into the well. Scalise dropped the line of questioning without asking Hayward to offer his best explanation for the increasing flow rate of the well.

Why is the integrity of the casing or the ground around the well hole important? Because it says everything about whether the flow rate of this spill will increase, whether there are more disasters yet to come, and how long it could take to stop flow from this well with the relief wells. The question I'd like to ask Tony Hayward is this: To the best of your knowledge are we near the end of this spill? In the middle? Or perhaps, only at the very beginning?

Right now, a disaster that keeps flowing until August is the worst anyone wants to imagine, but there are worse possibilities-- it could be the start of years of unchecked oil flowing into the Gulf. (See this Bloomberg article suggesting that the relief well could take until December to solve the problem. One expert in the article mentions a decade. Keep that in mind as you read onward.)

There are legitimate concerns about the integrity of the casing. Yesterday, someone asked Admiral Allen about that. He said that concerns about the integrity of the well bore were part of the decision to stop the "Top Kill" a few weeks ago, indicating that there are significant concerns. On April 23, the Coast Guard was aware that the size of the leak could grow from 8000 barrels a day to 64,000 to 110,000 barrels a day if the well completely blew out. That's quite close to the current spill estimates. Does that mean that the well is nearing a full blow out?  

The reason the casing's integrity matters is that if it's cracked, oil will push out through the cracks and into the surrounding ground, destabilizing the ground around the casing, and bubbling up from the ocean floor. Here's more, with Senator Bill Nelson's interview a week and a half ago saying just that. A seeping well, of course, will be hard to contain.

And finally, more alarming, and possibly a gross overstatement, there is the possibility that as the ground and the casing shift, the whole thing collapses inward, the giant Blow Out Preventer falls over, the drill pipe shoots out of the remains of the well, or any number of other scenarios that could make it very difficult or impossible to eventually stop the gusher even with the relief wells. (I do not know the author of this post, and cannot vouch for its accuracy. I do not share the author's fear that there is a conspiracy to hide this information. My sense is that it's unthinkable and so no one is asking the questions.) Thus the relief well are being drilled in a race with the integrity of the ground around the well and the casing. 

If they don't make it, we're looking at a very very different kind of accident. (This is where the "decade" remark comes in.) And if so, Tony Hayward will look back upon yesterday as a relatively pleasant interlude before the *real* disaster struck.

It's time to start asking for a best guess of what is going on in the well hole. It is dishonest not to.

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Lisa Margonelli is a writer on energy and environment. She spent four years and traveled 100,000 miles to write her book, "Oil On the Brain: Petroleum's Long Strange Trip to Your Tank." More

Lisa Margonelli directs the New America Foundation's Energy Productivity Initiative, which works to promote energy efficiency as a way of ensuring energy security, greenhouse gas emissions reductions, and economic security for American families. She spent roughly four years and traveled 100,000 miles to report her book about the oil supply chain, Oil On the Brain: Petroleum's Long Strange Trip to Your Tank, which the American Library Association named one of the 25 Notable Books of 2007. She spent her childhood in Maine where, during the energy crisis of the 1970s, her family heated the house with wood hauled by a horse. Later, fortunately, they got a tractor. The experience instilled a strong appreciation for the convenience of fossil fuels.

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