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Weatherford's Dry-Mate Optical Connector
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Overview of the Dry-Mate Optical Connector
Weatherford's dry-mate optical connector delivers reliable, low-loss optical connection with the optical permanence required for high-performance measurement systems, including optical pressure-temperature (P/T) gauges, optical in-well flowmeters, distributed-temperature-sensing (DTS) systems, and in-well seismic systems. The optical connector operates reliably in high-temperature/high-pressure (HTHP) applications, providing unique operating capabilities and performance margin for high-value wells.
 
Downhole Optical Cable Features, Advantages, and Benefits
- Non-electrical design is intrinsically safe and has minimal effect on completion design and installation.
- Designed to integrate with Weatherford downhole optical cables, the connector can be mated on the rig floor, minimizing rig time.
- Primary seal is metal-to-metal to eliminate leaks, enhancing system integrity and reliability.
- Low optical loss and optical back reflection enhance optical system performance and optimize management of optical budget.
- Connector consists of three pins, which support three optical fibers, and is designed to support any combination of single-mode and multimode optical fibers for added versatility.
- Connector complies with industry standards for instrumentation connectors.
 
Specifications of the Downhole Optical Cable
Operational Performance |
Optical channels |
3 |
Insertion loss (single mode) |
0.30dB (typical), 0.50dB (maximum) |
Insertion loss (multimode) |
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Back reflection (single mode) |
–50dB (typical), –45dB (maximum) |
Back reflection (multimode) |
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Operating pressure |
Atmosphere to 15,000 PSI (1,034 bar) |
Overpressure |
18,500 PSI (1,276 bar) |
Operating temperature |
32° to 302°F (0° to 150°C) |
Maximum temperature |
320°F (160°C) |
Minimum storage temperature |
–58°F (–50°C) |
Shock and Vibration Data |
Vibration |
15 Grms, random 10 to 2,000 Hz (Nav Mat) |
Shock |
100 g , 10 ms half sine |
Drop |
500 g , 1 ms half sine |
General Data |
Primary seal and type |
Metal, C-ring |
Secondary seal and type |
Elastomeric, O-ring |
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