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19 June, 00:28

Advantages and disadvantages of extracting petroleum products from oil sands

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  1. 19 June, 00:44
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    Advantages

    - large resource of potential oil

    - biggest resource is in Canada, whereas the largest reserves of crude oil are in Saudi Arabia and Venezuela

    - It requires less processing than oil shale and presents fewer problems than oil shale

    - Processing is mainly by hot water. - Exploitation has only started recently so low cost reserves are still available.

    Disadvantages

    - Most of the resource is uneconomic at present oil prices - so exploitable reserves are less than for crude oil

    - Oil sands require mining, which is more complex and costly than drilling and pumping crude oil.

    - Processing requires more energy than for crude oil.

    - Resources are less than for oil shale - which is available in very large reserves in the US and Australia.

    - Refining is more difficult because the product is in the form of bitumen - requiring cracking to produce a saleable product.

    - because of the increased processing and refining, more carbon is released per unit of useable energy than for crude oil
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