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Hollow Sucker Rod Electric Heating Device
Hollow Sucker Rod Electric Heating Device for Heavy Viscosity Oil
Sketch map of hollow sucker rod electric heating device.
Introduction
In the high viscosity, pour point and wax content situations, the crude oil has the difficult of lifting and flowing into the pump, the sucker rod bears too heavy load to downstream. So, the common sucker rod cannot play a good performance in the late of oil exploitation. There is a new device which can solve these problems - hollow sucker rod electric heating device.
Device structure
The hollow rod electric heating device is mainly combined with three parts.
· Hollow sucker rod. Including the adapter connector, terminator, pony rod, polished rod, hanger connector and stuffing box.
· Power unit. Medium frequency power supply control cabinet.
Classification
The hollow sucker rod electric heating device can be divided into pumping unit well electric heating device, subsurface pump hollow sucker rod electric heating device and screw pump hollow sucker rod electric heating device.
Pump unit hollow sucker rod electric heating device
Technical data
Hollow sucker rod
|
Rod Outer Diameter |
34mm |
36mm |
42mm |
|
Rod Thickness |
5.0mm, 5.5mm |
5.5mm, 6.0mm, 6.5mm |
6.0mm |
|
Coupling Outer Diameter |
50mm |
50mm |
60mm |
|
Thread Size |
1-9/16" |
1-9/16" |
1-7/8" |
|
Grade |
D |
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Heating cable
|
Heating core sectional area mm2 |
3 × 8.4mm2 |
|
Outer diameter of cable |
18 - 20mm |
|
Outer protect layer |
Stainless steel wire armor weave |
|
Withstand voltage |
≥ 2500V |
|
Length |
Underground length + ground length |
|
Temperature-resist grade |
Long time working temperature: 200°C (C Grade) |
|
Electrical performance |
Insulation resistance > 50MΩ, AC withstand voltage test 2500V |
|
Tensile strength |
≥ 50Mpa |
Electric control cabinet
|
Rated power KVA |
35 |
50 |
75 |
100 |
135 |
|
Input voltage |
Three phase 380V ± 5%， 50HZ， three phase 440V ± 5%, 60HZ |
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Output voltage |
Single phase160 - 900 is available. |
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Power factor |
COS Ø ≥ 0.95 |
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Three phase imbalance percent |
≤ 10% |
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