Transmission line for wired pipe

Patent metadata

Field	Value
Publication number	US-9915103-B2
Application number	US-201313904297-A
Country	US
Kind code	B2
Filing date	May 29, 2013
Priority date	May 29, 2013
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A wired pipe system includes a wired pipe segment having a first end and a second end, a first coupler in the first end and a second coupler in the second end and a transmission line disposed in the wired pipe segment between the first and second ends. The transmission line includes a transmission cable that includes an inner conductor and an insulating material disposed about the inner conductor as well as a a wire channel surrounding the insulating material and the inner conductor for at least a portion of a length of the transmission cable. The wire channel and the insulating material are mated together by at least one mating feature.

First claim

What is claimed is:

1. A wired pipe system comprising:
a wired pipe segment having a first end and a second end;
a first coupler in the first end and a second coupler in the second end; and
a transmission line disposed in the wired pipe segment between the first and second ends, the transmission line comprising:
a transmission cable that includes:
an inner conductor; and
an insulating material surrounding and contacting the inner conductor, wherein an outer surface of the insulating layer is threaded, and

a wire channel surrounding the insulating material and the inner conductor for at least a portion of a length of the transmission cable;
wherein the wire channel and the insulating material are mated to each other by the threaded layer of the insulated material.

2. The wired pipe system of claim 1 , wherein the threaded outer surface engages with threads included in the wire channel for at least a portion of a length of the wire channel.

3. The wired pipe system of claim 1 , further comprising:
a fixation element disposed between the wire channel and the insulating material, the fixation element having a fixation element mating feature at the inner diameter of the fixation element that mates with the threaded layer of the insulating material.

4. The wired pipe system of claim 3 , wherein the fixation element mating feature is threads.

5. The wired pipe system of claim 3 , wherein the fixation element is fixedly attached to the wire channel by a weld.

6. The wired pipe system of claim 5 , wherein the weld is either radially or axially disposed along an outer surface of the wire channel.

7. The wired pipe system of claim 1 , further comprising:
a shield layer disposed between the insulating material and the wire channel for at least a portion of the length of the transmission cable.

8. The wired pipe system of claim 7 , wherein the shield layer comprising a shield layer mating feature, wherein the shield layer mating feature is threads formed on the shield layer.

9. A wired pipe transmission line for transmitting electrical signals in a wired pipe system, the wired pipe transmission line comprising:
a transmission cable including:
an inner conductor;
an insulating material surrounding and contacting the inner conductor, the insulating material including a mating feature formed on an outer surface thereof; and
a shield layer surrounding the insulating material and having a threaded inner that mates with the mating feature;

a wire channel surrounding the insulating material and the inner conductor for at least a portion of a length of the transmission cable; and
a fixation element disposed between the shield layer and the wire channel that is fixedly attached to the wire channel, the fixation element including fixation element mating features formed on an inner portion that mate with shield layer threaded inner surface.

10. The wired pipe transmission line of claim 9 , wherein the fixation element is fixedly attached to the wire channel by a weld.

11. A wired pipe transmission line for transmitting electrical signals in a wired pipe system, the wired pipe transmission line comprising:
a transmission cable including:
an inner conductor;
an insulating material surrounding and contacting the inner conductor, the insulating material having a threaded outer surface; and
a shield layer surrounding the insulating material having shield layer mating features that mate with the threaded outer surface of the insulating layer;

a wire channel surrounding the insulating material and the inner conductor for at least a portion of a length of the transmission cable; and
a fixation element disposed between the shield layer and the wire channel that is fixedly attached to the wire channel, the fixation element including fixation element mating features formed on an inner portion that mate with shield layer mating features.

12. The wired pipe transmission line of claim 11 , wherein the shield layer mating features are threads.

13. The wired pipe transmission line of claim 11 , wherein the fixation element is fixedly attached to the wire channel by a weld.

Assignees

• Mueller Stephan
• Peters Volker
• Roders Ingo
• Buda Robert
• Schulz Rene
• Rahn Henning
• Baker Hughes A Ge Co Llc

Inventors

• Mueller Stephan
• Peters Volker
• Roders Ingo
• Buda Robert
• Schulz Rene
• Rahn Henning

Classifications

• E21B17/003 Primary

  with electrically conducting or insulating means (E21B17/028 and E21B17/023 take precedence) · CPC title

• E21B17/023

  Arrangements for connecting cables or wirelines to downhole devices · CPC title

• E21B17/028

  Electrical or electro-magnetic connections · CPC title

• E21B17/0285

  characterised by electrically insulating elements · CPC title