The Precision Cold Drawn Seamless Drilling Pipe

Seamless drilling pipe is a long hollow steel pipe that is used to rotate the drill bit and circulate drilling fluid in the well. The drilling pipe also serves as a conduit for the introduction of other down-hole tools. It is manufactured to withstand great external pressure, internal pressure, torsional stress, and bending stress.

Without drills, there cannot be petroleum; without drill pipes, there cannot be drills. Drill pipes, play a huge, perhaps underestimated role in the geological drilling industry. These tempered, hollow steel pipes, hardened against accidents and to withstand the pressures inherent to subterranean conditions, pump drill fluid to the drill bit.

Because of the working conditions in which they operate, geological drill pipes generally have to be carefully checked and rechecked for wear and tear. To that end, they are assessed with spherometers, instruments which can precisely and quickly measure the radius of a sphere.