Round Downhole Cable for Oil Well Sensor
Product Description
Round Tube Encapsulated Downhole Sensor Cables
Applications
The ENGELEC downhole cable for sensor application. It is designed to perform in the well and withstand elevated temperatures, high pressure and corrosive environments. It is used in conjunction and connecting with a big range of permanently installed electronic downhole pressure sensor,temperature sensor or other electronic equipment. The downhole cable is targeted to < 150°C offshore and land-based wells where ruggedness is essential.
Construction
Conductor | Annealed bare copper or tinned copper, sizes: 16 AWG and 18AWG, Solid or multi-stranded (Class 2) to BS 6360 |
Insulation | ETFE (ethylene-tetra-fluoro-ethylene) , wall thickness 0.03 inch (0.76 mm) with blue color or upon customizing |
Filler | Expanded polypropylene, with nature color or upon customizing |
Tubing | Seamless stainless SS 316L or Alloy 825,Diameter 0.25 inch ( 6.35mm) Wall thickness 0.028” (0.71mm), 0.035” (0.89mm), 0.049”(1.24mm) are optional. |
Outer encapsulation | Material Nylon, Polypropylene, ETFE are optional, Round shape : Φ 11mm |
Encapsulation Color | ● ● ● ● ● |
Mechanical and Electrical Properties
Tube Wall Thickness, inch (mm) | 0.28”(0.76) | 0.035” (0.89) | 0.049”(1.24) | ||
Tube Material | SS 316L | Alloy 825 | SS 316L | Alloy 825 | Alloy 825 |
Continuous maximum operating pressure, psi (bar) | 11500(793) | 13500(931) | 17500(1206) | 18000(1241) | 26000(1793) |
Collapse pressure, psi (bar) | 17500(1206) | 20000(1379) | 26000(1793) | 27000(1861) | 39000(2689) |
Armor DC resistance, 68°F (20°C), Ohms/kft. (Ohms/km) | 17.9 (58.8) | 27.3 (89.6) | 15 (49.22) | 22.5 (73.82) | 17.2 (56.43) |
Capacitance, conductor to tube, pf/ft. (pf/m) | 23.3 (76.45) | 23 (75.46) | 25 (82.03) | 30 (98.43) | 36 (118.12) |
Conductor DC resistance, 68°F(20°C), Ohms/kft.(Ohms/km) | 16 AWG: 4.45 (14.6) ; 18AWG: 7.07 (23.2) | ||||
Insulation resistance conductor to tube at 68°F (20°C) MOhms/kft.(MOhms/km) | 884 (2900) | ||||
Rated voltage | 1000VDC | ||||
Max operating temperature | Nylon : 275˚F (135˚C) ; Polypropylene : 302˚F (150˚C) ; ETFE : 302˚F (150˚C) | ||||