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View Diary: What Exactly is in Dilbit? It is a Secret. (242 comments)

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  •  That's right (1+ / 0-)
    Recommended by:

    crude oil, or in this case, I believe a form of bitumen, is a complex and time-varying mixture of hundreds or even thousands of different organic molecules.  I doubt even Exxon Mobil knows its precise composition -- just the major (economically important) components.

    •  Exactly: too complex to risk-manage; too dangerous (1+ / 0-)
      Recommended by:
      Don midwest

      to allow to be transported in pipelines; too multi-causal for state-of-the-art scientific models.

      They do not know what they are doing. Neither do you. Or I. Or any of us.

      Result: minimum trustworthiness.

      Rational conclusion: minimum trust.

      Thus the level of trust to be accorded to said company in this instance is a solid zero.

      #3: ensure network neutrality; #2: ensure electoral integrity; #1: ensure ecosystemic sustainability.

      by ivote2004 on Tue Apr 09, 2013 at 03:01:40 AM PDT

      [ Parent ]

    •  You don't have to "believe" - Exxon announced (0+ / 0-)

      that it was Wabasca Heavy Crude which is bitumen. You believe Exxon don't you?

      •  Well, I believe (meaning my understanding is) (0+ / 0-)

        That there's a difference between Wabasca Heavy Crude and bitumen, despite your assertion otherwise.

        According to, Wabasca heavy crude is:

        What is Wabasca Heavy crude?

        Wabasca Heavy is a blend of heavy oil production obtained by polymer injection and water flooding from the Athabasca region and typically has a 19-20 API gravity and 4.15 wt% sulphur content. Principal producers of the Wabasca Stream include Cenovus Energy and Canadian Natural Resources, though other producers do connect to the Wabasca Heavy stream. Wabasca Heavy is delivered to Edmonton via the Pembina Pipeline and Rainbow Pipelines.

        emphasis mine

        According to Schlumberger's Oil Field Glossary, bitumen is:

        * * *
        2. n. [Heavy Oil]
        A designation for a hydrocarbon fluid with a gravity of 10° API or lower, based upon the classification of the US Department of Energy.
        Synonyms: ultra heavy oil
        * * *
        emphasis mine

        So while I am not an expert on oilfield terminology, it is difficult for me to see how two substances:

         - One with an API gravity of 19 to 20

         - The other with an API gravity of 10 or lower

        Are the same thing.

        I'm uncertain about that, which is why I wrote "I believe," because the definitions don't seem to closely align.

        That's what honest people do: acknowledge uncertainty.

        Conversely, people with, well, a bit less honesty tend to blur the distinction between fact and opinion, and state things as simple facts when perhaps reality is a bit more complicated.

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