Talk:Drill string

Drill Pipe

This is probably just a silly argument, but drill pipe might not always be the longest part of the drill string. On shallower intervals such as when drilling the surface casing interval, the interval may be short enough where only drill collars are needed. But the statement in the article is generally true, considering the total drilled depth of an average well, and not worth editing. --Altailji 18:49, 13 July 2006 (UTC)