Drill pipes are an essential part of the drill string. They form the longest component of the drill string. Drill pipes are hollow thick-walled steel pipes with threaded connections at both ends. The end with an external thread is known as the male end, whereas the end with an internal thread is known as the female end. The basic purpose of a drill pipe is to provide a connection between the surface equipment and BHA for drilling purposes. Drill pipes are generally machined out of solid steel alloy bars as per API specifications. However, aluminium and titanium alloys are also used. The bars o...more >>
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