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Added chemical properties of heavy...will come up with more data in a day or so Yourdeadin 07:00, 19 August 2007 (UTC)Yourdeadin
Can someone knowledgeable in chemistry add the chemical abstraction or representation of crude oil? Similar to how the phosphorous acid page is represented in the right column? 70.137.91.190 19:25, 23 September 2007 (UTC)
Someone just obliterated my work on this article - I don't mind it saying the largest reserves are in Canada, if this can be properly backed up. I was under the impression that Canada had tar sands, not heavy oil. I know there isn't a great deal of difference between these, but Wikipedia has articles for both, so we should keep with the distinction. Also, the references don't make sense for the information this unnamed person has added. I've made some alterations. --Willplatts (talk) 09:07, 18 April 2008 (UTC)
There was some dubious chemistry listed in the Environmental Impacts section, claiming a higher carbon footprint because of "more carbon" by molecular weight. This is pretty dubious, so unless there's a cited source, it should probably be removed. Heavy oil probably does have a more energy-intensive extraction, transportation, and refining process - but by the time anybody burns it, it's unlikely that the carbon atom mass fraction has any relevant impact on the total amount of carbon released compared to other crude sources. Nimur (talk) 21:18, 17 June 2009 (UTC)
- These CO2 emission factors are based upon data provided by the Carbon Dioxide Information Analysis Center of the government of the United States and the Canadian Association of Petroleum Producers (CAPP): (Carbon Dioxide and Climate - Third Edition (ORNL/CDIAC-39), Edited by: Fred O'Hara Jr., Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 1990 (www.cdiac.ornl.gov/pns/convert.html ); A National Inventory of Greenhouse Gas (GHG), Criteria Air Contaminant (CAC) and Hydrogen Sulphide (H2S) Emissions by the Upstream Oil and Gas Industry / Volume 1, Overview of the GHG Emissions, Canadian Association of Petroleum Producers, Calgary, September 2004.)
There is a discussion if Oil sands and Heavy crude oil should be merged or not, and how these articles should refer different deposits. Your opinion is welcomed. Beagel (talk) 12:09, 19 February 2012 (UTC)
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The statement that "Heavy oils and asphalt are dense nonaqueous phase liquids (DNAPLs)" doesn't seem right. DNAPL's are less viscous than water, where heavy oil is very viscous. I can't remember an example of DNAPL off the top of my head. It seems like it's chemical solvents as opposed to oils. To have oils heavier (more dense) than water is rare. The "heavy" oils are heavy relative to other oils, not relative to water. Lldenke (talk) 21:48, 4 July 2019 (UTC)Lisa Denke