Drill String - Drill String Components - Transition Pipe

Transition Pipe

Heavyweight drill pipe (HWDP) may be used to make the transition between the drill collars and drill pipe. The function of the HWDP is to provide a flexible transition between the drill collars and the drill pipe. This helps to reduce the number of fatigue failures seen directly above the BHA. A secondary use of HWDP is to add additional weight to the drill bit.

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Famous quotes containing the words transition and/or pipe:

    The god or hero of the sculptor is always represented in a transition from that which is representable to the senses, to that which is not.
    Ralph Waldo Emerson (1803–1882)

    If you love music, hear it; go to operas, concerts and pay fiddlers to play to you; but I insist on your neither piping nor fiddling yourself. It puts a gentleman in a very frivolous, contemptible light.... Few things would mortify me more than to see you bearing a part in a concert, with a fiddle under your chin, or a pipe in your mouth.
    Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)