# US 2019/0170955 A1 · Fiber-Optic Strength Member Components for Use in Outer Strength Member Layers

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- Number: US 2019/0170955 A1
- Document ID: US20190170955A1
- Status: Published application
- Kind: A1
- Application number: 16/255,893
- Filed: 2019-01-24
- Published: 2019-06-06
- Earliest claimed: 2017-08-25
- Assignees: Schlumberger Technology Corporation
- Applicants: Schlumberger Technology Corporation
- Inventors: Joseph Varkey; Maria Grisanti; David Kim
- Web page: https://patentgrep.com/patent/US20190170955A1

## CPC

- G02B 6/443: {Protective covering}
- G02B 6/02004: {characterised by the core effective area or mode field radius}
- G02B 6/4416: {Heterogeneous cables}
- G02B 6/44384: {the means comprising water blocking or hydrophobic materials (G02B6/4439, G02B6/4479 take precedence)}
- G02B 6/4486: {Protective covering}
- G02B 6/4488: {using metallic tubes}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A cable containing at least one optical fiber in a strength member and methods for manufacturing the strength member and cable are provided. A cable may include a cable core and armor wire strength members that surround the cable core. One of the armor wire strength members that surround the cable core contains an optical fiber.

## Claims

### Claim 1

A method comprising:
inserting a first optical fiber into a space shaped into one or more wires;
enclosing the space to enclose the first optical fiber in an optical-fiber-containing structure; and
extruding a first polymer tube over the optical-fiber-containing structure.

### Claim 2 (depends on 1)

The method of claim 1, wherein inserting the first optical fiber into the space comprises:
inserting the first optical fiber between two semi-circular shaped wires;
inserting the first optical fiber into a longitudinal channel of a grooved wire;
inserting the first optical fiber into a hollow region of a C-shaped wire; or
inserting the first optical fiber into one of a plurality of circumferentially spaced channels in a wire; or
some combination thereof.

### Claim 3 (depends on 1)

The method of claim 1, comprising filling the space with a material, wherein the material comprises air, a silicon polymer, or a UV-curable polymer, or some combination thereof.

### Claim 4 (depends on 1)

The method of claim 1, comprising extruding a second polymer tube over the first polymer tube to provide additional rigidity or wrapping a plurality of wires over the first polymer tube to provide additional rigidity, or a combination thereof.

### Claim 5 (depends on 1)

The method of claim 1, comprising cabling the optical-fiber-containing structure around a cable core in a cable suitable for use downhole in a wellbore.