BP Update: "Bottom Kill" Nearly Complete, But Oil Found on Seafloor

By Andrew Moseman | September 14, 2010 3:17 pm

Thick Oiled LayerFive months later, BP might finally stop up its leaking well for good this week. As of yesterday, drilling crews had about 50 feet of rock left to drill through to complete their “bottom kill” operation.

Federal officials have said it should take about four days to drill the final stretch of the relief well so that it intersects with the original well. From there, it will probably take a few days to pump in mud and cement and perform tests to determine that the well is fully killed. [Los Angeles Times]

Meanwhile, we continue to hear conflicting reports regarding the whereabouts of the leaked oil, and how much of it persists in the Gulf environment. Last week we heard good news from the National Oceanic and Atmospheric Administration, which said that not only were microbes consuming much of the oil, but they also weren’t depleting the Gulf of Mexico’s oxygen to dangerously low level, which had been feared.

Oxygen levels in some places where the BP oil spilled are down by 20 percent, but that’s not nearly low enough to create the dead zones where fish can’t live, according to a 95-page report released [last] Tuesday. [AP]

Other updates, though, aren’t as rosy. Researchers are still trying to get a handle on where all the oil went, including that giant plume of oil found in the Gulf, and how fast it might be breaking down. And then there’s those new reports of a layer of slime.

Samantha Joye, a professor of marine sciences, sailed on a research ship called Oceanus and found that a thick layer of oily sediment had settled on the seafloor for miles around the ruined well (seen in the sediment core in the photo).

“I’ve collected literally hundreds of sediment cores from the Gulf of Mexico, including around this area. And I’ve never seen anything like this,” she said. [NPR]

In fact, she says, those microbes that have been helpfully eating some of the oil might have something to do with it. The microbes excrete mucus; as the mucus falls toward the seafloor, it picks up oil and carries it down. Joye still must confirm by chemical fingerprinting that the oil is from BP’s busted well, but given how widespread it is, she says there’s little doubt.

Even with the muck at the bottom of the sea, though, The New York Times argues that we might have gotten off relatively easy, because the BP mess could have been much worse.

Evidence is increasing that through a combination of luck (a fortunate shift in ocean currents that kept much of the oil away from shore) and ecological circumstance (the relatively warm waters that increased the breakdown rate of the oil), the gulf region appears to have escaped the direst predictions of the spring…. And preliminary reports from scientists studying the effects on marshes, wildlife and the gulf itself suggest that the damage already done by the spill may also be significantly less than was feared — less, in fact, than the destruction from the much smaller Exxon Valdez spill in Alaska in 1989 [The New York Times].

Recent posts on the BP oil spill:
80beats: BP Report on Gulf Disaster Spreads the Blame Around
80beats: Scientists Find 22-Mile-Long Oily Plume Drifting in the Gulf of Mexico
80beats: BP Oil Update: Tar Balls in Texas & Lake Pontchartrain
80beats: Gulf Coast Turtle News: No More Fiery Death; Relocating 70,000 Eggs

Image: Samantha Joye

  • Vaibhav

    I hope that the relief well operation serves it’s purpose and kills the well finally, making sure that it does not cause any further oil spills in the future. To control all these mishaps there should be strict governing policies ensuring that offshore drilling is only permitted if all the necessary precautions are taken with regards to Environment and Human life, as neglecting the same has already caused serious damage to marine environment and human life.

    I think it is high time we started taking nature and our planet earth seriously and do our bit about environment, sustainability, climate change, biodiversity, clean energy, green living and so on. One great place to start would be http://www.elpis.com. Elpis is an online community focused on responsible living and sustainable growth. You can measure, reduce and offset your carbon footprint; set up petitions, volunteering and fundraising projects for your favourite causes; help create action plans for sustainable communities; buy a range of eco friendly products and services; and network with other people who share a common interest in a low carbon, responsible lifestyle.

  • Brian Too

    One almosts hates to say this, but considering the situation… maybe the sea bottom is the best place for the oil at this point?

    I’d bet it will be a problem for bottom dwelling sea life. Coral, crab, lobster, halibut, flounder, octopus, all the sea floor creatures. The oil will probably kill large numbers of those. Forget fishing for those species in the affected areas for a while.

    Bah, it’s a mess all around.

  • Robert Holt

    “A third of the living creatures in the sea died, and a third of the ships were destroyed.” (Revelation 8:9). While the Gulf oil spill may not be the fulfillment of that prophecy, the Gulf oil spill does show that something like that could happen. The idea isn’t so farfetched. “He who testifies to these things says, ‘Yes, I am coming soon.’ Amen. Come, Lord Jesus.” (Revelation 22:20).

  • http://closecombatselfdefense.info Bryon Mccrone

    I don’t know if it’s just me or if everyone else experiencing problems with your website. It appears as if some of the written text on your content are running off the screen. Can someone else please comment and let me know if this is happening to them too? This could be a issue with my web browser because I’ve had this happen previously. Cheers aquaponics

  • http://www.0512risheng.com/admin/Ubbimg adidas f50 adizero cuir

    There are certainly a nice selection of details like that to take into accounts. That is an awesome point to bring up. I offer the actual thoughts above as general inspiration but clearly there are actually questions like a main you bring up where the key thing will be in honest good hope. I don? t know in the event that best practices include emerged around things like that, but Seen that your job is clearly recognized as a fair video game.


Discover's Newsletter

Sign up to get the latest science news delivered weekly right to your inbox!


80beats is DISCOVER's news aggregator, weaving together the choicest tidbits from the best articles covering the day's most compelling topics.

See More

Collapse bottom bar