Bogey style torque bushing for top drive

Patent metadata

Field	Value
Publication number	US-9834990-B2
Application number	US-201314138658-A
Country	US
Kind code	B2
Filing date	Dec 23, 2013
Priority date	Dec 28, 2012
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

Present embodiments are directed to a top drive system having a top drive, a bogey chassis, wherein the top drive is coupled with the bogey chassis, an upper bushing coupling the bogey chassis to a torque track, and a lower bushing coupling the bogey chassis to the torque track, wherein the upper and lower bushings are configured to translate along the torque track.

First claim

The invention claimed is:

1. A top drive system, comprising:
a top drive;
a bogey chassis, wherein the top drive is coupled the bogey chassis;
an upper bushing coupling the bogey chassis to a torque track; and
a lower bushing coupling the bogey chassis to the torque track,
wherein the upper and lower bushings are configured to translate along the torque track, and wherein a first vertical distance between the top drive and the upper bushing is greater than a second vertical distance between the top drive and the lower bushing.

2. The system of claim 1 , wherein the bogey chassis is coupled to the upper bushing by a first pin at approximately an axial midpoint of the upper bushing.

3. The system of claim 2 , wherein bogey chassis is coupled to the lower bushing by a second pin at approximately an axial midpoint of the lower bushing.

4. The system of claim 2 , wherein the bogey chassis comprises an adjustment mechanism comprising an adjustment pin threadably coupled to the bogey chassis and configured to engage with the first pin.

5. The system of claim 4 , wherein rotation of the adjustment pin adjusts the vertical orientation of a central member of the bogey chassis relative to the torque track, wherein the central member of the bogey chassis is fixed to the top drive.

6. The system of claim 1 , wherein the top drive is coupled to the bogey chassis by a plurality of pivoting arms, wherein the plurality of pivoting arms is configured to rotate and laterally extend the top drive from the torque track.

7. The system of claim 6 , wherein rotation of the plurality of pivoting arms is actuated by a plurality of hydraulic cylinders.

8. The system of claim 1 , wherein each of the upper bushing and lower bushing comprises a plurality of rollers configured to reduce friction between the upper bushing and the lower bushing and the torque track.

9. The system of claim 1 , wherein a single pinned connection couples the top drive, the bogey chassis, and the lower bushing.

10. The system of claim 1 , comprising a center of gravity of the top drive, wherein the center of gravity is offset from an axis of a hanging load of the top drive.

11. A system, comprising:
a torque bushing system configured to be coupled to a top drive comprising a first bushing and a second bushing; and
a torque track system,
wherein the torque bushing system is configured to absorb an overturning moment acting on the top drive and apply resulting linear forces to the torque track system, wherein the torque bushing system comprises a leveling system configured to adjust the levelness of the top drive, and wherein the leveling system comprises an adjustable pin and rotating of the adjustable pin adjusts the vertical orientation of a central member of a bogey chassis coupled to the top drive.

12. The system of claim 11 , wherein the overturning moment is generated by a center of gravity of the top drive that is offset from an axis of a hanging load of the top drive.

13. The system of claim 11 , wherein the torque bushing system comprises the bogey chassis coupled to the top drive, an upper bushing coupling the bogey chassis to the torque track, and a lower bushing coupling the bogey chassis to the torque track.

14. The system of claim 13 , wherein the top drive is fixed to the bogey chassis with a plurality of pins.

15. The system of claim 13 , wherein the upper bushing is coupled to the bogey chassis by a first pin at an approximate axial midpoint of the upper bushing, and the lower bushing is coupled to the bogey chassis by a second pin at an approximate axial midpoint of the lower bushing.

16. A top drive system, comprising:
a top drive;
a bogey chassis, wherein the top drive is coupled the bogey chassis;
an upper bushing coupling the bogey chassis to a torque track; and
a lower bushing coupling the bogey chassis to the torque track,
wherein the upper and lower bushings are configured to translate along the torque track, wherein the top drive is coupled to the bogey chassis by a plurality of pivoting arms, wherein the plurality of pivoting arms is configured to rotate and laterally extend the top drive from the torque track, wherein rotation of the plurality of pivoting arms is actuated by a plurality of hydraulic cylinders, and wherein a first vertical distance between the top drive and the upper bushing is greater than a second vertical distance between the top drive and the lower bushing.

17. The system of claim 16 , wherein the bogey chassis is coupled to the upper bushing by a first pin at approximately an axial midpoint of the upper bushing.

18. The system of claim 17 , wherein bogey chassis is coupled to the lower bushing by a second pin at approximately an axial midpoint of the lower bushing.

19. The system of claim 16 , wherein each of the upper bushing and lower bushing comprises a plurality of rollers configured to reduce friction between the upper bushing and the lower bushing and the torque track.

20. A top drive system, comprising:
a top drive;
a bogey chassis, wherein the top drive is coupled the bogey chassis;
an upper bushing coupling the bogey chassis to a torque track; and
a lower bushing coupling the bogey chassis to the torque track,
wherein the upper and lower bushings are configured to translate along the torque track, wherein each of the upper bushing and lower bushing comprises a plurality of rollers configured to reduce friction between the upper bushing and the lower bushing and the torque track, wherein the upper bushing comprises an adjustable pin and rotating of the adjustable pin adjusts a vertical orientation of a central member of the bogey chassis coupled to the top drive.

21. A top drive system, comprising:
a top drive;
a bogey chassis, wherein the top drive is coupled the bogey chassis;
an upper bushing coupling the bogey chassis to a torque track; and
a lower bushing coupling the bogey chassis to the torque track,
wherein the upper and lower bushings are configured to translate along the torque track, and, wherein the torque bushing system comprises a leveling system configured to adjust the levelness of the top drive, and the leveling system comprises an adjustable pin and rotating of the adjustable pin adjusts the vertical orientation of a central member of the bogey chassis coupled to the top drive.

Assignees

• Tesco Corp

Inventors

• Bowley Ryan Thomas
• Yajure Edgar Fernando

Classifications

• E21B15/00

  Supports for the drilling machine, e.g. derricks or masts · CPC title

• E21B19/02

  Rod or cable suspensions · CPC title

• E21B3/02 Primary

  Surface drives for rotary drilling · CPC title

• E21B3/022 Primary

  Top drives · CPC title