15b, Usolskaya Street, Perm, Russia Close 
Well deparaffination unit
Onshore semi-automatic and automatic, wellhead and cluster, mobile and offshore modifications are available.
Application
Mechanical deparaffination of tubing (with scrapers) for wells with natural flow, ESP and ESPCP.
Advantages
- Wire tension control;
- Ratchet joint of drive shaft and spool to prevent reverse winding of wire;
- Unit status monitoring in case of power cut;
- Winch is turned off when pump is stopped;
- Handbrake to set scraper in free fall mode;
- Emergency alarm;
- Automatic sealing device;
- Remote data monitoring and transfer;
- Manual removal of paraffin plugs;
Benefits
- Increased well runlife and cleaning interval;
- Preserved flow rate;
- Easy operation and maintenance;
- High repairability;
Technical specification
| WDU 80/ WDU 80А | WDU 100/ WDU 100А | WDU 80WА Wellhead unit | WDU 63WA Wellhead unit |
|
|---|---|---|---|---|
| Cleaned tubing OD, inch (mm) | from 2 (48) | from 2 (48) | from 2 (48) | from 2 (48) |
| Lubricator max. operating pressure, MPa (Psi) | up to 35 (5076) | up to 35 (5076) | up to 35 (5076) | up to 35 (5076) |
| Nominal lubricator size, inch (mm) | 2.55 (65); 3.14 (80) | 2.55 (65); 3.14 (80) | 2.55 (65); 3.14 (80) | 2.55 (65); 3.14 (80) |
| Max. cleaning depth, ft (m) | 6560 (2000) | 9850 (3000) | 6560 (2000) | 6560 (2000) |
| Wire OD, inch (mm) | 1.8/2,2 | 1.8/2,2 | 1.8/2,2 | 1.8/2,2 |
| Electric motor (power, speed, voltage)* | 1.1 kW, N = 1000rpm, 380V / 220V | 1.1/1.5 kW, N = 1000 rpm, 380V / 220V | 1.1 kW, N = 1000rpm, 380V / 220V | 0.75 kW, N = 1000rpm, 380V / 220V |
| Scraper travel speed, max. without adjustment/ (adjusted by VFD for automatic units) m/min* | 3 – 17 | 3 – 17 | 3 – 17 | 3 – 17 |
| Overall dimensions, inch (mm)* | 2100х560х830 | 2160х680х830 | 750х460х1720 | 750х400х1780 |
| Unit weight without wire / with wire (2 inch) (max.), kg | 190/280 | 200/300 | 90/140 | 80/145 |
| Installation version | At well site | At well site | At wellhead on lubricator | At wellhead on lubricator |
| Operation mode | Manual, semi-automatic / manual, automatic | Manual, semi-automatic / manual, automatic | Manual, automatic | Manual, automatic |
* Provided reference values may vary depending on Customer’s technical requirements.