Tubing Encased Fiber Optic (TEF) Low Temperature Cable
Product description
A typical Tubing Encased Fiber Optic (TEF) cable is a tube-in-tube design. The inner tube is a fiber in a metal tube (FIMT). The FIMT can contain a range of fibers, both single-mode (SMF) and multi-mode (MMF). The fiber selection and appropriate filling gels can be customized to meet the customer's specifications/requirements. The FIMT can be centralized and supported within the outer tube by a layer of extruded material called “a belt.”
Application
TEF cable is a key enabler of modern well management technologies. TEF cable is the sensor element for modern distributed fiber optic sensing technologies, DTS and DAS, which have become essential well management tools for monitoring key processes such as SAGD and fracking.
Standards & Approvals
Advanced Well Equipment Standard Group RP-3362 “AWES Recommended Practice for Qualification of Tubing Encased Fiber (TEF Cable Appendix A: TEC/TEF Cables”
Features
- Operating temperature range: -10°C to 150°C
- Centralized FIMT
- Multiple Fibers
- Range of Sizes
- Gel-Filled Options
- Application Specific
- Extruded Filler
- Optional Bumper Bars
- Custom Line Marking
- Safety-Strip® Encapsulation
Design & Construction
- Outer Tube Materials
- 316L Stainless Steel (UNS 31603)
- A825 Alloy (UNS N08825)
- Outer Tube Sizes: 1/8" to 3/8"
- FIMT (Fiber In Metal Tube)
- Material: 316L Stainless Steel
- Size: 0.065" to 0.165"
- Fiber Quantity: Multiple
- Type: SMF and MMF
- Coatings: Temp-specific
- Gel: Temp-specific
- Belt (Optional): PP / FEP
- Encapsulation (Optional)
- PP (Polypropolene) / TPR (Santoprene) / PA (Nylon) / PVDF / ETFE (Tefzel) / ECTFE (Halar)
- Round or Square profile
- Flatpack Bumper Bars (Optional): 5/16" / 7/16" / 1/4" / 3/8" / Galvanized
- Pressure Rating
- 1/8" up to 25Kpsi
- 1/4" up to 25Kpsi
- 3/8" up to 20Kpsi