Invention Grant
US08739861B2 Electrical wiring for drill pipe, casing, and tubing 有权
钻杆,套管和油管的电气接线

Electrical wiring for drill pipe, casing, and tubing
Abstract:
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.
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