SLINGSHOT SIDE SADDLE SUBSTRUCTURE

• US 20160298394A1
• Filed: 06/23/2016
• Published: 10/13/2016
• Est. Priority Date: 02/13/2013
• Status: Active Grant

• Current Assignee: Nabors Drillling Technologies USA, Inc.
• Original Assignee: Nabors Drilling USA LP (Nabors Industries Limited)
• Inventors: PADIRA, Reddy, GUPTA, Ashish
• Granted Patent: US 9,926,719 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E04H 12/345 Arrangements for tilting up whole structures or sections thereof E04H12/347 takes precedence
• CPC Class Codes: E21B 15/00 Supports for the drilling machine, e.g. derricks or masts
• CPC Class Codes: E21B 15/003 adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
• CPC Class Codes: E21B 21/063 by separating components

Abstract

The drilling rig includes a first substructure and a second substructure. The second substructure is positioned generally parallel to and spaced apart from the first substructure and generally the same height as the first substructure. The drilling rig further includes a drill floor coupled to the first and second substructures, where the drill floor positioned substantially at the top of the first and second substructures.

Claims

1. A drilling rig comprising:

a first substructure;

a second substructure, the second substructure being positioned generally parallel to and spaced apart from the first substructure;

a drill floor coupled to the first and second substructures, the drill floor positioned substantially at the top of the first and second substructures, the drill floor including a V-door, the side of the drill floor having the V-door defining a V-door side of the drill floor; and

a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill floor.

2. The drilling rig of claim 1, wherein the mast further comprises a V-door side and wherein the V-door side of the mast faces the first or second substructure.

3. The drilling rig of claim 1, wherein the mast is pivotably coupled to one or more of the first substructure, the second substructure, and the drill floor by a pivot point.

4. The drilling rig of claim 3, further comprising a hydraulic cylinder mechanically coupled to one of the first substructure, second substructure, or rig floor and mechanically coupled to the mast.

5. The drilling rig of claim 4, wherein the hydraulic cylinder mechanically couples to the mast at a mast lift point.

6. The drilling rig of claim 1, wherein the V-door side is aligned with the first substructure.

7. The drilling rig of claim 1, further comprising one or more hydraulic walkers, the hydraulic walkers positioned at a lower end of one or both of the first and second substructures.

8. The drilling rig of claim 1, further comprising an equipment support cantilever pivotably coupled to one of the first and second substructure.

9. The drilling rig of claim 8, further comprising a piece of equipment mechanically coupled to the equipment support cantilever.

10. The drilling rig of claim 9, wherein the piece of equipment comprises one or more of a tank support structure, drill line spooler, hydraulic power unit, compressor, variable frequency drive, mud process equipment, choke manifold, accumulator, mud gas separator, process tank, trip tank, or driller'"'"'s cabin.

11. The drilling rig of claim 1, further comprising a tank support substructure coupled to the first or second substructure.

12. The drilling rig of claim 11, wherein the tank support substructure further comprises a tank.

13. The drilling rig of claim 12, wherein the tank is a mud tank.

14. The drilling rig of claim 11, wherein the tank support substructure further comprises mud process equipment.

15. The drilling rig of claim 14, wherein the mud process equipment comprises at least one of a shaker or a filter.

16. The drilling rig of claim 1, further comprising a grasshopper positioned to carry cabling and lines to the drilling rig, the grasshopper positioned to couple to the drill floor generally at a side of the drill floor, and the side of the drill floor to which the grasshopper couples faces towards the first or second substructure.

17. The drilling rig of claim 1, wherein the first and second substructures are adapted to be traveled through a wellsite.

18. The drilling rig of claim 1, further comprising a choke manifold.

19. The drilling rig of claim 1, further comprising an accumulator.

20. The drilling rig of claim 1, further comprising one or more of a drill line spooler, an HPU, a driller'"'"'s cabin, hydraulic unit, trip tank, process tank, or mud gas separator.