Transmission line for drill pipes and downhole tools

Patent metadata

Field	Value
Publication number	US-9581016-B2
Application number	US-201514946913-A
Country	US
Kind code	B2
Filing date	Nov 20, 2015
Priority date	Nov 28, 2012
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

A method of forming a wired pipe transmission line includes: providing an assembly that includes an inner conductor surrounded by an insulating material; attaching a fixation element to the assembly at or near an end thereof; providing a tubular outer conductor; disposing the assembly and the fixation element within the outer conductor; and fixedly attaching the fixation element to the inner portion of the tubular outer conductor.

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 medium disposed in the wired pipe segment between the first and second ends and providing at least part of an electrical path between the first and second couplers, the transmission medium comprising:
an assembly that includes an inner conductor surrounded over at least a portion of its length by an insulating material;
a plurality of separate, spaced-apart fixation elements surrounding and attached to the assembly at or near a single end of the assembly; and
a wire channel surrounding at least a portion of a length of the assembly and the fixation element, the wire channel being fixedly connected to the fixation element.

2. The wired pipe system of claim 1 , wherein the wire channel extends beyond an end of at least one of the inner conductor and the insulating material.

3. The wired pipe system of claim 1 , further comprising:
a connector disposed at least partially between the assembly and a communication coupler, the connector electrically connecting the communication coupler to the inner conductor.

4. The wired pipe system of claim 3 , wherein the connector is at least partially disposed within the wire channel.

5. The wired pipe system of claim 4 , wherein a portion of the inner conductor extends beyond an end of the insulating material and is in electrical contact with the connector.

6. The wired pipe system of claim 1 , wherein the fixation elements are glued to the assembly.

7. The wired pipe system of claim 1 , wherein the fixation elements are cold worked on to the assembly.

8. The wired pipe system of claim 1 , wherein the fixation elements are chemically or thermally bonded to the assembly.

Assignees

• Peters Volker
• Benedict Detlev
• Buda Robert
• Mueller Stephan
• Rahn Henning
• Schulz Rene
• Baker Hughes Inc

Inventors

• Peters Volker
• Benedict Detlev
• Buda Robert
• Mueller Stephan
• Rahn Henning
• Schulz Rene

Classifications

• Y10T29/49117

  Conductor or circuit manufacturing · CPC title

• F16L25/01

  specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof · CPC title

• F16L15/00 Primary

  Screw-threaded joints; Forms of screw-threads for such joints · CPC title

• E21B17/042 Primary

  Threaded · CPC title

• F16L55/00

  Devices or appurtenances for use in, or in connection with, pipes or pipe systems (F16L1/00 - F16L53/00, F16L57/00, F16L59/00 take precedence; repairing or joining pipes on or under water F16L1/26; cleaning of pipes B08B9/02, e.g. removal of blockages B08B9/027; devices for preventing bursting of water pipes by freezing E03B7/10) · CPC title