TRACTOR FOR INSTALLING TUBING ENCAPSULATED CABLE INTO COIL TUBING

• US 20150184468A1
• Filed: 12/12/2014
• Published: 07/02/2015
• Est. Priority Date: 12/30/2013
• Status: Abandoned Application

• Current Assignee: Trican Well Service Limited
• Original Assignee: Trican Well Service Limited
• Inventors: Sherman, Scott
• Application Number:
  US14/569,386
• Publication Number:
  US 20150184468A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E21B 17/003 with electrically conducting or insulating means E21B17/028 and E21B17/023 take precedence
• CPC Class Codes: E21B 17/20 Flexible or articulated drilling pipes , e.g. flexible or articulated rods, pipes or cables
• CPC Class Codes: E21B 23/14 for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells

Abstract

Tubing encapsulated cable is generally difficult to place in the interior of coil tubing. In various embodiments of the present invention tubing encapsulated cable is placed in the interior of coil tubing by attaching the tubing encapsulated cable to a tractor and allowing the tractor to pull the tubing encapsulated cable into the coil tubing. The tractor drive system may be a fluid drive system where an electric or other motor supplies power to a propeller or jet pump. The tractor drive system could also be a friction drive were electric or other motor supplies power to a drive wheel or treads. The tractor drive system could also be a push me pull me system where electric or other motor locks a portion of the tractor in place while moving the other portion forwards.

Claims

1. A tractor to install a tubing encapsulated cable in coil tubing comprising:

a housing,

a power source,

a connection to the tubing encapsulated cable, and

a friction driver.

2. The tractor of claim 1 wherein, the housing is sealed to prevent a fluid from entering the housing.

3. The tractor of claim 1 wherein, the housing has lengthwise grooves.

4. The tractor of claim 3 wherein, the lengthwise grooves allow fluid to pass the housing.

5. The tractor of claim 3 wherein, the lengthwise grooves assist in dissipating heat.

6. The tractor of claim 1 wherein, the power source is in the interior housing.

7. The tractor of claim 1 wherein, the power source is outside of the coil tubing and is accessed through the tubing encapsulated cable.

8. The tractor of claim 1 wherein, the friction driver is a wheel.

9. The tractor of claim 1 wherein, the friction driver is a track.

10. The tractor of claim 1 further comprising a sensor.

11. The tractor of claim 10 wherein, the sensor is a strain gauge.

12. A tractor to install a tubing encapsulated cable in coil tubing comprising:

a housing,

a power source,

a connection to the tubing encapsulated cable, and

a fluid driver.

13. The tractor of claim 12 wherein, the housing is sealed to prevent a fluid from entering the housing.

14. The tractor of claim 12 wherein, the housing has lengthwise grooves.

15. The tractor of claim 14 wherein, the lengthwise grooves allow fluid to pass the housing.

16. The tractor of claim 14 wherein, the lengthwise grooves assist in dissipating heat.

17. The tractor of claim 12 wherein, the power source is in the interior housing.

18. The tractor of claim 12 wherein, the power source is outside of the coil tubing and is accessed through the tubing encapsulated cable.

19. The tractor of claim 12 wherein, the fluid driver is a propeller.

20. The tractor of claim 12 wherein, the fluid driver is a pump.

21. The tractor of claim 12 further comprising a sensor.

22. The tractor of claim 21 wherein, the sensor is a strain gauge.

23. A tractor to install a tubing encapsulated cable in coil tubing comprising:

a frame,

a power source,

a connection to the tubing encapsulated cable, and

a driver moving the first portion forwards and then a second portion forwards.

24. The tractor of claim 23 wherein, the power source is on the frame.

25. The tractor of claim 23 wherein, the power source is outside of the coil tubing and is accessed through the tubing encapsulated cable.

26. The tractor of claim 23 wherein, the first portion engages the coil tubing while the second portion moves forward.

27. The tractor of claim 23 wherein, the second portion engages the coil tubing while the first portion moves forward.

28. The tractor of claim 23 wherein, the first portion engages the coil tubing with slips.

29. The tractor of claim 23 wherein, the first portion engages the coil tubing with brushes.

30. The tractor of claim 23 further comprising a sensor.

31. The tractor of claim 30 wherein, the sensor is a strain gauge.