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3 June, 18:01

How is crude oil brought to the surface

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  1. 3 June, 18:02
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    In some places, especially some new wells that have just been drilled,

    the oil is under pressure, and it brings itself to the surface as soon as

    you drill a 'pipe' for it to rise through.

    In most oil wells, there's a pump bobbing up and down day and night,

    pumping the oil up out of the well.

    When the well is so old that even a pump isn't very effective, water is

    often forced down the well under pressure, and the water forces the

    oil back up through the pipe.
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