Electrical wiring for drill pipe, casing, and tubing

摘要

An apparatus includes a first pin and a second pin. The first pin has a first joint section. The first joint section has first holes extending a length of the first joint section and terminating at a first preload face. The second pin has a second joint section. The second joint section has second holes extending a length of the first joint section and terminating at a second preload face. The second joint section is adapted to receive the first joint section and the first holes match the second holes when the first pin and the second pin are mated.

主权项

1. An apparatus comprising:
a first pin having a first joint section, the first joint section having first holes extending a length of the first joint section and terminating at a first preload face, the first pin having an end that is spaced from the first preload face which defines a first cylindrical portion with an outer surface; a second pin having a second joint section, the second joint section having second holes extending a length of the second joint section and terminating at a second preload face, the second pin having an end that is spaced from the second preload face which defines a second cylindrical portion with an inner surface, and the second joint section adapted to receive the first joint section and the first holes matching the second holes when the first pin and the second pin are mated; first tapered splines on the first pin, the first tapered splines extending outwardly from the outer surface of the first cylindrical portion of the first pin and axially from the first preload face, a spline in the first tapered splines having a base at the first preload face and a width that narrows towards a tip of the spline; second tapered splines on the second pin, the second tapered splines extending inwardly from the inner surface of the second cylindrical portion of the second pin and axially from the second preload face, a spline in the second tapered splines having a base at the second preload face and a width that narrows towards a tip of the spline; and wherein the first tapered splines are adapted to be received by second tapered splines when the first pin and the second pin are mated.