Downhole Optical Cable Specifications
| Typical Encapsulation Options |
| Material |
Maximum Temperature Rating |
| °F |
°C |
| Polyamide |
200 |
90 |
| Polyolefin copolymer |
210 |
100 |
| Heat-stabilized polyolefin copolymer |
240 |
115 |
| EPDM/propylene copolymer |
260 |
130 |
| Polyvinylidene fluoride |
280 |
140 |
| ETFE |
310 |
155 |
| Teflon® FEP |
400 |
205 |
| Teflon PFA |
500 |
260 |
| |
1/8-in. Cable |
1/4-in. Cable |
| 0.028-in. Wall |
0.035-in. Wall |
| Construction |
| Optical fibers |
2 single-mode, 1 multi-mode |
| Inner metal tube |
304 stainless steel |
| Buffer |
N/A |
Teflon® |
| Outer armor tube (in.) |
316 SS or INCOLOY® 825
0.125 OD × 0.022 wall |
INCOLOY 825
0.250 OD × 0.028 wall |
INCOLOY 825
0.250 OD × 0.035 wall |
| Mechanical Properties |
| Weight (in air) (lb/ft) |
0.03 |
0.1 |
0.11 |
| Working pressure (psi/bar) |
20,000
1,379 |
20,000
1,379 |
25,000
1,724 |
| Collapse pressure (psi/bar) |
>30,000
2,068 |
>30,000
2,068 |
>35,000
2,413 |
Burst pressure
(psi/bar) |
34,000
2,344 |
20,000
1,379 |
25,000
1,724 |
| Maximum tensile load (lb/kg) |
500
227 |
1,500
680 |
2,000
907 |
| Maximum splice-free length (ft/m) |
20,000
6,096 |
| Minimum bend radius >1 turn (in./mm) |
2
50.8 |
4
101.6 |
| Minimum bend radius <1/2 turn (in./mm) |
1
25.4 |
| Environmental Specifications |
| Operating temperature range (°F/°C) |
32 to 212
0 to 100 |
32 to 347
0 to 175 |
| Storage temperature range (°F/°C) |
–40 to 212
–40 to 100 |
–40 to 347
–40 to 175 |
Pressure range
(psi/bar) |
Atmosphere to 20,000
1,379 |
Atmosphere to 20,000
1,379 |
Atmosphere to 25,000
1,724 |
Teflon is a registered trademark of DuPont. INCOLOY is a registered trademark of the Special Metals Corporation group of companies.
Overview
Specifications
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