Casing Shoe

In oil drilling and borehole mining, a casing shoe or guide shoe is a bull-nose shaped device which is attached to the bottom of the casing string. A casing hanger, which allows the casing to be suspended from the wellhead, is attached to the top of the casing.

Famous quotes containing the word shoe:

    “For the shoe pinches, even though it fits perfectly.
    Apples were made to be gathered, also the whole host of the world’s ailments and troubles.
    There is no time like the present for giving in to this temptation.
    Tomorrow you’ll weep what of it?”
    —John Ashbery (b. 1927)