Transmission line for wired pipe, and method

Patent metadata

Field	Value
Publication number	US-9601237-B2
Application number	US-201414194991-A
Country	US
Kind code	B2
Filing date	Mar 3, 2014
Priority date	Mar 3, 2014
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

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.

First claim

What is claimed is:

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.

Assignees

• Mueller Stephan
• Roders Ingo
• Schulz Rene
• Rahn Henning
• Buda Robert
• Benedict Detlev
• Baker Hughes Inc

Inventors

• Mueller Stephan
• Roders Ingo
• Schulz Rene
• Rahn Henning
• Buda Robert
• Benedict Detlev

Classifications

• H01B7/28 Primary

  {Protection against damage caused} by moisture, corrosion, chemical attack or weather · CPC title

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title

• H01B7/16

  Rigid-tube cables · CPC title

• Y10T29/49174

  Assembling terminal to elongated conductor · CPC title

• E21B17/00

  Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; {Cables;} Casings; Tubings · CPC title