Oil Well Temperature Sensing Cable - APAC Cable

Products

You are here: Home>Fiber Optic Cables>Special Optical Cables

Oil Well Temperature Sensing Cable

Oil Well Temperature Sensing Cable

Application scenarios

Temperature and pressure measurement operations in high-temperature oil and gas wells.
Temperature monitoring of above-ground high-temperature equipment, such as high-temperature furnaces and other high-temperature conditions.

Product features

Wide temperature range: long-term -60℃～+300℃, short-term -100℃～+350℃, with an extreme limit up to 750℃.
Excellent mechanical performance, meeting the stringent requirements of downhole operations.
Fully sealed structure design with pressure resistance over 60MPa, delivering outstanding high-pressure resistance.
Made of SUS 316 or 826 high nickel-chromium alloy, with strong resistance to high corrosion and high temperature.

Color identification

(1) Fiber colors (corresponding to 1-2 fibers)
The tight-buffered fiber color isnatural, and standard industry color coding (blue, orange, etc.) can be used when the fiber count is expanded.
(2) Cable colors
Metallic (natural color of inner/outer steel tubes)
Note: The outer sheath (outer steel tube) of the standard oil well temperature sensing cable is metallic in color by default; surface treatment can be customized as required.

Environmental certifications

Compliant with EU RoHS and REACH certification standards.

Structural dimensions

Item	Unit	Specification	One-side thickness (mm)
Fiber	mm	0.25±0.005	-
Inner steel tube (SUS316/826 alloy)	mm	2.50±0.10	0.35
Intermediate protective layer (aluminum tube)	mm	3.80±0.15	0.40
Outer steel tube (SUS316/826 alloy)	mm	6.35±0.20	0.75
Filling material inside tube	-	High-temperature gel / aramid	-
Cable weight	Kg/km	145	-

Fiber performance

(1) Geometric characteristics

Test item	MM 50（GI 50/125）
Mode field diameter (mm)	50±2.5
Cladding diameter (mm)	124.8±1.0
Cladding non-circularity (%)	≤1.0
Core-cladding concentricity error (mm)	≤1.5
Coating diameter (mm)	245±7
Outer coating-cladding concentricity error (mm)	≤12.0

(2) Optical characteristics

Test item	Specification parameters
Fiber type	GI 50/125 multimode optical fiber
Fiber count	1-2 fibers
Zero-dispersion wavelength λ0 (nm)	1295-1320
Zero-dispersion slope S0 (ps/(nm².km))	≤0.101
Effective group index (850nm)	1.482
Effective group index (1300nm)	1.477
Typical attenuation (850nm)	≤3.5 dB/km
Typical attenuation (1300nm)	≤1.5 dB/km

Cable performance

Item	Unit	Specification parameters
Cable outer diameter	mm	6.35±0.20
Permissible tensile strength (long-term)	N	5000
Permissible tensile strength (short-term)	N	9000
Permissible crush strength (long-term)	N/10cm	5000
Permissible crush strength (short-term)	N/10cm	10000
Permissible bending radius (dynamic)	mm	150
Permissible bending radius (static)	mm	300
Operating temperature (long-term)	℃	-60～+300
Operating temperature (short-term)	℃	-100～+350
Cable net weight	kg/km	145
Pressure resistance rating	Mpa	≥60
Nominal service life	Year	20
Reference standards	-	GB/T 7424.1-2003；YD/T 1258.4-2005；GB/T 21197-2007

Marking information

Standard marking: Manufacturer info + Model (YJDKBT-2A1a-60) + GI 50/125 + Fiber count + Month/Year + XXXXm
Custom marking content available per customer requirements.

Cable drum length

Standard drum lengths: 500m, 1000m, 2000m, 3000m (maximum supported length)
10% over/under shipment allowed; settlement based on actual shipped length.

Product Brochure

Oil Well Temperature Sensing Cable

Related Products