The device for cleaning the tubing from the wax UOK-NKT is designed for continuous cleaning of the entire inner surface of the tubing string by cutting the solid wax layer from the walls.
Advantages over analogues:
· The unwinding of the wire from the drum is prevented by the use of a spring-loaded movable roller with a weight sensor;
· Calibration of the scraper position with an accuracy of up to 40 cm;
· Fully automated slug avoiding process;
· User-friendly interface;
· Easy to use.
More than 6 invention applications were submitted and patents were received for some of them: patent No. 2331226 "Device for cleaning the tubing from wax, a piston and scraper are included, with modifications", patent No. 2396421 "Device for cleaning flowlines from wax".
The equipment is manufactured on the basis of licensing agreements with patent holders.
Parameter
Units
Norm
1
2
3
1. Cleaning interval, length of the winding wire
m
< 3000
2. Scraper parameters:
- length, max
- diameter, max
- nominal movement speed, max
- weight, max
mm
m/min
kg
75
6;12
33
3. Fluid parameters
- total paraffin and asphalt-tar content, volume fractions, max
- kinematic viscosity of oil, max
- oil density
%
m²/sec
kg/m³
10
120х10-6
700÷980
4. Traction force on the drum with drum diameter up to 500 mm, min
kGs
130
5. Type of wire reeled on a drum 180-V GOST 7372, wire diameter
1.8; 2.0; 2.2; 2.6
6. Wire coating
-
7. Nominal tubing diameter, GOST 633
60; 73; 89
8. Electric winch power
Rated supply voltage of the motor
Rotation of the motor shaft
kW
V
Rpm
0.25;0.37
220; 380
1500;3000
9. Modification of the winch electric drive
Explosion proof, 1 Ex ed IIB T4 (1 Ex ed IIB T5)
10. Overall dimensions of the device (LxWxH), max
790x290x2500
11. Weight of device (with wire), max
153
12. Parameters of the control block:
- current signals of the control unit
- distance from the station to the drive, no more
- degree of protection in accordance with GOST 14254
mA
0-20
200
1Р53
13. Control unit dimensions
550x470x150
14. Working pressure, not more
MPa
4.0
15. Class of fire zone according to Electric Device Safety Rules
В-1г
16. Rotational speed of the drum drive
4÷8
17.Archiving
18. Connection to the remote control system, monitoring the operation of the device
"Dry contact", RS-485 (Modbus)