Drilling rig

Patent metadata

Field	Value
Publication number	US-11597435-B2
Application number	US-201916700743-A
Country	US
Kind code	B2
Filing date	Dec 2, 2019
Priority date	Dec 2, 2019
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

The invention relates to a drilling rig with a drilling tower, a base structure, on which the drilling tower is arranged, and at least three support units being part of the base structure, each support unit having at least one wheel rotatable around a horizontal wheel axis, wherein at least one of the support units comprises a vertical steering axis, around which the at least one wheel can be turned by a steering drive. The invention further relates to a method for moving such a mobile drilling rig.

First claim

The invention claimed is:

1. A drilling rig having
a drilling tower,
a base structure, on which the drilling tower is arranged, and
at least three support units being part of the base structure, each support unit having at least one wheel rotatable around a horizontal wheel axis,

wherein
at least one of the support units comprises a vertical steering axis, around which the at least one wheel can be turned by a steering drive, wherein
each support unit comprises at least one first wheel rotatable around a first wheel axis and at least one second wheel rotatable around a second wheel axis being distant and parallel to the first wheel axis,
the first wheel axis and the second wheel axis are arranged at one common carrier element, and
the carrier element is mounted swingably around a horizontal swing axis, which is arranged between the first wheel axis and the second wheel axis.

2. The drilling rig according to claim 1 ,
wherein
the base structure is a rectangular base structure having four corner portions, and
four support units are provided, each support unit being arranged at one of the four corner portions of the rectangular base structure.

3. The drilling rig according to claim 2 ,
wherein
additional support units are provided at the base structure between the support units arranged at the corner portions.

4. The drilling rig according to claim 1 ,
wherein
the drilling rig is a mobile drilling rig,
each support unit is steerable and comprises at least one vertical steering axis and one steering drive, and
at least one of the support units comprises a wheel drive for rotatably driving at least one wheel for providing a self-propelling of the mobile drilling rig.

5. The drilling rig according to claim 1 ,
wherein
each support unit comprises at least one wheel drive.

6. The drilling rig according to claim 1 ,
wherein
each support unit comprises at least one wheel drive, and
a common control unit is provided for controlling the steering drives and the wheel drives for the support units.

7. The drilling rig according to claim 1 ,
wherein
the drilling tower comprises at least one horizontal folding axis, around which at least part of the drilling tower can be folded downwards.

8. The drilling rig according to claim 1 ,
wherein
at the base structure a plurality of support feet is arranged, which are vertically adjustable relative to the support units for supporting the drilling rig after movement and during drilling operation.

9. The drilling rig according to claim 1 ,
wherein
the wheels are of regular size having a diameter of not more than 2 meters.

10. A method for moving a drilling rig according to claim 1 .

11. The method according to claim 10 ,
wherein
the drilling rig is steered by the support units and self-propelled or propelled by at least one tractor vehicle.

12. The drilling rig according to claim 1 ,
wherein
at least two first wheels are arranged rotatably around the first wheel axis and at least two second wheels are arranged rotatably around the second wheel axis.

13. The drilling rig according to claim 1 ,
wherein
the carrier element is mounted swingably at a mounting part, which itself is mounted turnably around the vertical steering axis at a support base of the support unit.

Assignees

• Bauer Maschinen Gmbh

Inventors

• Hartl Michael

Classifications

• B62D13/00 Primary

  Steering specially adapted for trailers (combined traction and steering hitches B60D) · CPC title

• B62D7/026

  characterised by comprising more than one bogie, e.g. situated in more than one plane transversal to the longitudinal centre line of the vehicle · CPC title

• E21B15/003

  adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells · CPC title

• B62D7/04 Primary

  with more than one wheel · CPC title

• B62D53/00

  Tractor-trailer combinations; Road trains (traction couplings other than fifth wheel coupling B60D {; tracked vehicles comprising at least two articulated parts B62D55/0655}) · CPC title