Methods for injecting or retrieving tubewire when connecting two strings of coiled tubing

Patent metadata

Field	Value
Publication number	US-9644435-B2
Application number	US-201414273422-A
Country	US
Kind code	B2
Filing date	May 8, 2014
Priority date	May 8, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Systems and methods for injecting tubewire into the core end of coiled tubing sections on reels. Methods are described for disposing tubewire into multiple sections of coiled tubing.

First claim

What is claimed is:

1. A method of disposing tubewire into coiled tubing, the method comprising the steps of:
providing a first coiled tubing section coiled upon a first reel, the first coiled tubing section providing a core end and a whip end;
injecting tubewire within the core end of the first coiled tubing section toward the whip end, while the first coiled tubing section is coiled upon the reel;
providing a second coiled tubing section coiled upon a second reel, the second coiled tubing section providing a core end and a whip end;
injecting tubewire within the core end of the second coiled tubing section toward the whip end;
interconnecting the tubewire that has been injected into the first coiled tubing section with the tubewire that has been injected into the second coiled tubing section; and
directly interconnecting the whip end of the first coiled tubing section with the whip end of the second coiled tubing section.

2. The method of claim 1 further comprising the step of affixing a conduit to the core end of the first coiled tubing section prior to injecting the tubewire in order to provide a suitable flowpath and guide path for injection of tubewire.

3. The method of claim 1 further comprising the steps of:
providing a second coiled tubing section coiled upon a second reel, the second coiled tubing section providing a core end and a whip end; and
interconnecting the whip end of the first coiled tubing section with the whip end of the second coiled tubing section.

4. The method of claim 3 further comprising the step of further injecting the tubewire into the whip end of the interconnected second coiled tubing section.

5. The method of claim 3 wherein the step of interconnecting the whip end of the first coiled tubing section with the whip end of the second coiled tubing section further comprises affixing the whip ends of the first and second coiled tubing sections to a coil-to-coil connector.

6. The method of claim 1 further comprising the steps of:
providing a second coiled tubing section coiled upon a second reel, the second coiled tubing section providing a core end and a whip end; and
injecting tubewire within the whip end of the second coiled tubing section toward the core end.

7. The method of claim 1 wherein the tubewire within the first coiled tubing section is interconnected with the tubewire within the second coiled tubing section by interconnecting a tubewire bridge segment to each.

8. The method of claim 1 wherein the tubewire within the first coiled tubing section is interconnected with the tubewire within the second coiled tubing section by a conductive rod or wire.

9. A method of disposing tubewire into coiled tubing, the method comprising the steps of:
providing a first coiled tubing section coiled upon a first reel, the first coiled tubing section providing a core end and a whip end;
affixing a conduit to the core end of the first coiled tubing section prior to injecting the tubewire in order to provide a suitable flowpath for injection of tubewire;
injecting tubewire within the core end of the first coiled tubing section toward the whip end, while the first coiled tubing section is coiled upon the reel;
providing a second coiled tubing section coiled upon a second reel, the second coiled tubing section providing a core end and a whip end;
injecting tubewire within the core end of the second coiled tubing section toward the whip end;
interconnecting the tubewire that has been injected into the first coiled tubing section with the tubewire that has been injected into the second coiled tubing section; and
directly interconnecting the whip end of the first coiled tubing section with the whip end of the second coiled tubing section.

10. The method of claim 9 further comprising the steps of:
providing a second coiled tubing section coiled upon a second reel, the second coiled tubing section providing a core end and a whip end; and
interconnecting the whip end of the first coiled tubing section with the whip end of the second coiled tubing section.

11. The method of claim 10 further comprising the step of further injecting the tubewire into the whip end of the interconnected second coiled tubing section.

12. The method of claim 11 further comprising the step of spooling the interconnected first and second coiled tubing sections onto a single reel.

13. The method of claim 10 wherein the step of interconnecting the whip end of the first coiled tubing section with the whip end of the second coiled tubing section further comprises affixing the whip ends of the first and second coiled tubing sections to a coil-to-coil connector.

14. The method of claim 9 wherein the tubewire within the first coiled tubing section is interconnected with the tubewire within the second coiled tubing section by interconnecting a tubewire bridge segment to each.

15. The method of claim 9 wherein the tubewire within the first coiled tubing section is interconnected with the tubewire within the second coiled tubing section by a conductive rod or wire.

16. A method of removing a tubewire from within a coiled tubing, the method comprising the steps of:
providing a first reel having first and second coiled tubing sections coiled thereupon, the first and second being interconnected and having tubewire disposed within both the first and second coiled tubing sections;
removing the tubewire from the first and second coiled tubing sections by:
unspooling the first coiled tubing section from the first reel until a connection point between the first and second coiled tubing sections is revealed;
removing tubewire from within the first coiled tubing section until an end of the tubewire reaches a point proximate the connection point;
disconnecting the first and second coiled tubing sections at the connection point; and
removing tubewire from the second coiled tubing section.

17. The method of claim 16 wherein the step of removing the tubewire from the first and second coiled tubing sections comprises:
removing tubewire completely from the first and second coiled tubing sections without unspooling the first and second coiled tubing sections from the first reel.

18. The method of claim 16 wherein the tubewire comprises first and second tubewire portions that are interconnected, and wherein the step of removing the tubewire from the first and second coiled tubing sections comprises:
unspooling the first coiled tubing section from the first reel until a connection point between the first and second coiled tubing sections is revealed;
disconnecting the first and second coiled tubing sections at the connection point;
disconnecting the first and second tubewire portions from each other; and
removing the first and second tubewire portions from the first and second coiled tubing sections.

Assignees

• Baker Hughes Inc

Inventors

• Naumann Andre

Classifications

• E21B19/08 Primary

  Apparatus for feeding the rods or cables (E21B19/22 takes precedence; automatic feed E21B44/02); Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods · CPC title

• E21B17/20 Primary

  Flexible or articulated drilling pipes {, e.g. flexible or articulated rods, pipes or cables} · CPC title

• E21B17/206 Primary

  with conductors, e.g. electrical, optical · CPC title

• E21B19/22

  Handling reeled pipe or rod units, e.g. flexible drilling pipes {(lifting or hauling appliances using two or more cooperating endless chains B66D3/003)} · CPC title

• E21B19/02

  Rod or cable suspensions · CPC title