Transmission line for wired pipe, and method
A wired pipe transmission line for disposal in a wired pipe segment for use in subterranean drilling. The transmission line includes an assembly including an inner conductor and a dielectric layer including silicon dioxide (SiO 2 ) insulating material surrounding the inner conductor and a protective layer that is formed of a rigid material and surrounding the dielectric layer. Also included is a method of forming a wired pipe transmission line.
1. A wired pipe transmission line for disposal in a wired pipe segment for use in subterranean drilling, the transmission line comprising:
an assembly including an inner conductor and a dielectric layer including silicon dioxide (SiO 2 ) insulating material surrounding the inner conductor;
a protective layer that is formed of a rigid material and surrounding the dielectric layer;
a sealing sleeve welded to an outer side of the protective layer, wherein the sealing sleeve extends beyond an end of the protective layer; and
a connector disposed within the sealing sleeve;
wherein a portion of the inner conductor extends beyond an end of the insulating material and is in electrical contact with the connector.
2. The transmission line of claim 1 , further comprising:
a shield layer disposed between the dielectric layer and the protective layer.
3. The transmission line of claim 2 , wherein the shield layer is at least partially formed of copper.
4. The transmission line of claim 1 , wherein the rigid material is steel.
5. The transmission line of claim 1 , wherein the connector is disposed within the protective layer.