Fiber optic splice housing and integral dry mate connector system

• US 8,757,891 B2
• Filed: 03/13/2012
• Issued: 06/24/2014
• Est. Priority Date: 06/22/2004
• Status: Expired due to Fees

• Current Assignee: WellDynamics BV (Halliburton Company)
• Original Assignee: WellDynamics BV (Halliburton Company)
• Inventors: Ringgenberg, Paul D., Skinner, Neal G., Maida, John L. Jr., Johnson, David O.
• Primary Examiner(s): BLEVINS, JERRY M
• Application Number:
  US13/418,674
• Publication Number:
  US 20120170898A1
• Time in Patent Office: 833 Days
• Field of Search: 385/12, 385/37, 385/53, 385/96, 385/135, 385/13, 385/55, 385/56, 385/58, 385/60, 385/70, 385/72, 374/161
• US Class Current: 385/53
• CPC Class Codes: G02B 6/2558 Reinforcement of splice joint
• CPC Class Codes: G02B 6/3816 for use under water, high pressure connectors provisionally see G02B6/4428
• CPC Class Codes: G02B 6/3878 comprising a plurality of ferrules, branching and break-out means
• CPC Class Codes: G02B 6/3894 Screw-lock type
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A fiber optic splice housing and integral dry mate connector system. In a described embodiment, a fiber optic connection system includes optical fiber sections in respective conduit sections. Each of the conduit sections is received in the housing assembly. An optical connection between the optical fiber sections is positioned within the housing assembly.

Claims

1. An optical fiber storage apparatus, comprising:

a generally tubular body having at least one circumferentially extending recess formed on an exterior of the body, the body being configured for interconnection in a tubular string which is lowered into a subterranean well, wherein a flow passage of the tubular string extends through the body; and

at least one optical fiber received in the recess and wound circumferentially about the body, thereby storing a substantial length of the optical fiber at a same longitudinal position along the tubular string.

2. The apparatus of claim 1, wherein an outer housing at least partially overlies the body.

3. The apparatus of claim 2, wherein the optical fiber is positioned between the body and the outer housing.

4. The apparatus of claim 1, wherein the optical fiber is at atmospheric pressure when the apparatus is installed in a subterranean well.

5. The apparatus of claim 1, wherein the body has first and second recesses formed thereon, and wherein the optical fiber is received in each of the first and second recesses.

6. The apparatus of claim 5, wherein a third recess interconnects the first and second recesses.

7. The apparatus of claim 5, wherein the optical fiber is wound about the body and is simultaneously received in each of the first and second recesses.

8. The apparatus of claim 1, wherein first and second sections of the optical fiber are received in the recess.

9. The apparatus of claim 8, further comprising an optical connection between the first and second optical fiber sections.

10. The apparatus of claim 9, wherein the connection is received in the recess.

11. The apparatus of claim 9, wherein the connection is a fusion splice.

12. The apparatus of claim 8, wherein the body has first and second recesses formed thereon, at least the first optical fiber section being received in the first recess, and at least the second optical fiber section being received in the second recess.

13. The apparatus of claim 12, wherein the first and second optical fiber sections are wound simultaneously about the body in the first and second recesses.

14. The apparatus of claim 12, wherein the body has a third recess formed thereon, the third recess interconnecting the first and second recesses.

15. The apparatus of claim 1, wherein first and second conduit sections are attached to the body, a first optical fiber section extending in the first conduit section, and a second optical fiber section extending in the second conduit section.

16. The apparatus of claim 15, wherein the body has opposite ends, and wherein each of the first and second conduit sections is attached to one of the opposite ends.

17. The apparatus of claim 15, wherein the body has opposite ends, and wherein each of the first and second conduit sections is attached to a respective one of the opposite ends.

18. The apparatus of claim 1, further comprising a temperature sensing element.

19. The apparatus of claim 18, wherein the temperature sensing element is associated with an optical fiber section separate from the optical fiber.

20. The apparatus of claim 19, wherein the separate optical fiber section comprises a single mode fiber.

21. The apparatus of claim 19, wherein the temperature sensing element is a fiber Bragg grating formed on the separate optical fiber section.

22. The apparatus of claim 19, wherein the temperature sensing element is an interferometric temperature sensor.

23. The apparatus of claim 19, wherein the optical fiber comprises a multi-mode optical fiber.