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Oil Deposit Could Increase US Reserves 10x

HighWizard notes the upcoming release, on Thursday, of a report by the US Geological Survey on the Bakken Formation. This is an oil field covering 200,000 square miles and underlying parts of North and South Dakota, Montana, and Saskatchewan. A geologist who began surveying the field, before dying in 2000, believed it may hold as much as 1 billion barrels of recoverable oil. Later estimates have ranged to the hundreds of billions of barrels. Such a reserve would go a long way toward securing US energy independence.

7 of 869 comments (clear)

  1. Re:We have more oil? by Itchyeyes · · Score: 5, Informative
    I'm a petroleum engineer who works for an independent oil and gas company that has recently become active in the Bakken formation in North Dakota. So let me try and answer these questions one by one.

    I wonder what this does for theories of for oil. Some people theorize that petroleum is left over from the formation of the earth, rather than created by the fossilization of carbon life forms.

    This theory is complete and utter bunk. Nobody, and I really mean nobody, seriously invested in the search for petroleum reserves subscribes to it. The Bakken is a traditional petroleum reservoir where the hydrocarbons are created by biological matter subject to intense heat and pressure.

    The reason that the Bakken is just now considered a viable reservoir is not because more oil has been generated but because the technology and price of oil have advanced enough to where it's now a viable and economic source of oil. The current buzz about the Bakken is specifically relegated to horizontal wells, a technology that has just recently come into its own.

    This reserve may be difficult to tap fully because of the nature of the rocks. I wonder if nuclear weapons would help. I guess it depends on how and where they were deployed.

    I'm assuming this is a joke, but nuclear weapons have actually been tested in oil fields to increase production. Traditionally, a well is hydrolicaly fractured with pressure to increase the permiability of the rock and increase the ease in which the hydrocarbons can flow. However, explosives can produce a similar result. Nuclear explosives though are actually poor tools to fracture a well with since the intense heat "glasses" the rock and prevents flow.

    How many tons of CO2 would be created with the burning of 500 billion barrels of oil? BTW, 500 billion barrels of oil would be about 1/6th of the world's oil reserves.

    Fewer than would be produced generating the same amount of energy with coal, which currently provides about 70% of our energy in the US. Even if we all decide today that we're going to swear off fossil fuels, the process of converting our society to the alternatives will take decades, decades in which we will still rely on millions of barrels of oil every day.
  2. Re:Giant shale fields... by Itchyeyes · · Score: 5, Informative

    I think you're confusing oil shale with plain old shale. The Bakken is a traditional shale formation, so recovery costs are not that high. Wells are generally economic as long as the price of oil stay above around $70/bbl. And no this won't make the Dakota's like West Virginia. The reason the Bakken is now economic is because of advances in horizontal drilling. When wells are drilled horizontally they are spaced much farther apart. Currently Bakken wells in North Dakota are drilled about 1 to every square mile. A standard oil well will take up about 3-5 acres of surface area in that square mile.

  3. Re:We have more oil? by Itchyeyes · · Score: 5, Informative

    I'm continually stunned by the abundance of misinformation our there about how oil is produced and distributed.

    First of all, most of our oil does not come from Canada and Mexico. And a lot of it does come from the Middle East and our foreign policy does have a big impact on it.

    Secondly, yes Exxon made $40 billion in profits last year. They also spend somewhere around $400 billion to make those profits. Big numbers mean nothing unless you put them in perspective. A 10% profit margin is nothing special.

    Thirdly, there is no oil monopoly. Oil companies do not calude with each other, they compete. The oil industry is infinitely deeper than Exxon, Chevron, and BP. There are hundreds, if not thousands of independent oil and gas companies in the US alone. The people that have interests in the Bakken in North Dakota are not the majors. They are companies like EOG, Marathon, Kodiak, and Questar. These companies do not have refineries. They sell at the market price, they have no say in what their product goes for. They do not have enough reserves to make any impact on market prices even if they wanted to.

  4. Re:Bring the boys back home, send em up N by Rei · · Score: 5, Informative

    B) This is about oil reserves INSIDE THE UNITED STATES

    Actually, the Bakken formation extends into Canada, too.

    The Bakken has a rather interesting history. Estimates on how much oil it produced have varied a lot. Back in the '70s, they thought it only had about 10B barrels -- which is a lot, but not when it's spread out over such a huge formation. To make matters worse, the formation is a dozen meters or so thick in most places. All together, recovery rates were expected to be 1-3%, and expensive at that. Not many takers.

    Things have changed. After Price's paper that predicted over 400 billion barrels, computer simulations have been developed; the latest runs expect 200-300 billion barrels. Furthermore, horizontal drilling means that you can enter the thin formation and then run along it; this is what is used in the very successful Elm Coulee field.

    The Bakken is just one minimally tapped deposit. There's absolutely no shortage of recoverable oil in the world. The problem is the consequences of recovering and burning it all.

    C) The US is moving to 'alternative fuels'. The debate is not over whether or not to, but how big a priority it is.

    Are you kidding? There's a huge debate over whether or not to, especially after the most recent papers suggesting that even sugarcane ethanol leads to more greenhouse gasses than gasoline. Let alone the fact that there's a widely growing acceptance that, despite the momentum, corn ethanol is a huge blunder. There's the food-for-fuel competition (food prices are up 40%, mostly from fuel prices and alternative fuel pressure). Now, I think it's good that corn prices aren't as artificially low as they used to be, but now they're artificially high, and everything is getting pushed up by the increased demand for biofuel land -- even other staples like wheat.

    And what about cellulosic ethanol, this supposed panacea? This is one thing that drives me crazy. Look at how most big cellulosic ethanol companies are making the stuff. They turn the biomass into syngas (CO+H2) by burning it in a poorly oxygenated environment, and then use a complex, inefficient biological or catalytic process to convert it into ethanol. Well, here's the thing: we've been making syngas into *gasoline* for most of a century. That's how Nazi Germany and Apartheid-era South Africa kept their engines running (excepting, in the case of Germany, after we bombed most of their facilities). And it's a relatively efficient -- 70% or so. So, instead of making a fuel that we're *already set up for*, we're instead making a *less dense* fuel that we can only use in *limited quantities* in most cars and *can't ship in our pipelines*. Why? Because "cellulosic gasoline" isn't a buzzword. Nobody likes the word "gasoline", but lots of people like the word "ethanol". You get more investment, you get more tax breaks, and on and on. So the inferior solution gets chosen.

    Anyways, if you want to *actually* clean up your act, either increase your MPG or switch your miles over to electricity (the significantly higher thermodynamic efficiencies of power plants mean that even dirty power plants run a car cleaner than a gasoline engine -- plus, electricity is a lot easier to clean up). Biofuels are an "easy" solution that isn't really a solution at all.

    --
    But this Rottweiler not only is snarling and frothing at the mouth; it also went to Harvard.
  5. Re:100 Billion Barrels of Greenhouse Gases by MadMorf · · Score: 5, Informative

    Add iron, plankton grows. Plankton absorbs CO2, then dies, sinking.
    Nope. Plankton dies, releasing organo-phophates and nitrogen compounds into the water, which causes bacterial blooms, which depletes dissolved O2 levels, which causes other marine lifeforms to die, initiating a downward spiral...

    Not a marine biologist, but a marine aquarium owner. Been there, done that.

  6. Re:We have more oil? by RatPh!nk · · Score: 5, Informative

    We actually have plenty of refining capacity.
    I just want to point this out:

    The US total refining capacity was 17,443,492 barrels of oil/day, which yields on average, 340,148,094 gallons @19.5gallons gas/barrel of oil. The current consumption of gas in the US is 388.6 million gallons/day (as of 2006)


    If those numbers are correct, we are at a 48,451,906 gallon/day shortfall of US domestic production capacity. Since no one wants a refinery in their backyard, there hasn't been a new one built since the 1970's (The last refinery built in the US was in Garyville, Louisiana, and it started up in 1976.)


    So "we" as in the US, have a serious lack of refinery capacity.


    Sources:
    http://www.eia.doe.gov/neic/quickfacts/quickoil.html
    http://www.newton.dep.anl.gov/askasci/eng99/eng99288.htm
    http://www.gasandoil.com/goc/news/ntn12966.htm
    --
    Argh. The laws of science be a harsh mistress.
  7. Only 10% of oil goes to automotive gasoline? by cnaumann · · Score: 5, Informative


    According to this cute chart:

    http://www.energy.ca.gov/gasoline/whats_in_barrel_oil.html

    A little more than 50% of a barrel of oil becomes gasoline.

    And this little tidbit from the plastics industry:

    Less than .05% of a barrel of
    oil goes into making all the plastic bags used in the US while 93% - 95% of every barrel of
    crude oil is burned for fuel and heating purposes. Although they are made from natural gas or
    oil, plastic bags actually consume less fossil fuels during their lifetime than do compostable
    plastic and paper bags.


    http://www.plasticsindustry.org/about/fbf/myths+facts_grocerybags.pdf

    --

    Seriously, how many pounds of plastic bags could you possibly be using in a year? How many pounds of plastic on in your car? A weekly 15 gallon fill-up is about 90 pounds of fuel, or a little less than 2.5 tons a year. My whole car doesn't weight that much, and most of it is steel.

    Save your bags if it makes you feel good, but it ain't gonna make any real difference.