Slingshot side saddle substructure

• US 10,214,937 B2
• Filed: 07/13/2018
• Issued: 02/26/2019
• Est. Priority Date: 02/13/2013
• Status: Active Grant

• Current Assignee: Nabors Drillling Technologies USA, Inc.
• Original Assignee: Nabors Drillling Technologies USA, Inc.
• Inventors: Reddy, Padira, Gupta, Ashish
• Primary Examiner(s): Demuren, Babajide A
• Application Number:
  US16/035,375
• Publication Number:
  US 20180320401A1
• Time in Patent Office: 228 Days
• 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

A land-based drilling rig includes a first substructure and a second substructure, the second substructure being positioned generally parallel to the first substructure. The land-based drilling rig also includes a drill rig floor coupled to the first and second substructures, the drill rig floor including a V-door. The side of the drill rig floor has the V-door defining a V-door side of the drill rig floor, where the V-door side of the drill rig floor is parallel to the first substructure. The first and second substructures pivotably support the drill rig floor. The land-based drilling rig also includes a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill rig floor. The mast is pivotably coupled to one or more of the first substructure, the second substructure, and the drill rig floor by a mast pivot point. The mast includes a V-door side, the V-door side of the mast parallel to the first or second substructure. In addition, the land-based drilling rig includes a mast hydraulic lift cylinder coupled to the mast at a mast lift point and a choke manifold, the choke manifold positioned on the drill rig floor.

Claims

1. A land-based drilling rig comprising:

a first substructure;

a second substructure, the second substructure being positioned generally parallel to the first substructure;

a drill rig floor fixedly coupled to the first and second substructures wherein the drill rig floor is immovable with respect to the first and second substructures when the land-based drilling rig is assembled and set up for drilling, the drill rig floor including a V-door, the side of the drill rig floor having the V-door defining a V-door side of the drill rig floor, the V-door side of the drill rig floor parallel to the first substructure;

a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill rig floor, the mast being pivotably coupled to one or more of the first substructure, the second substructure, and the drill rig floor by a mast pivot point, the mast comprising a V-door side, the V-door side of the mast parallel to the first or second substructure;

a mast hydraulic lift cylinder coupled to the mast at a mast lift point; and

an accumulator, the accumulator positioned on the drill rig floor.

2. A land-based drilling rig comprising:

a first substructure;

a second substructure, the second substructure being positioned generally parallel to the first substructure;

a drill rig floor fixedly coupled to the first and second substructures wherein the drill rig floor is immovable with respect to the first and second substructures when the land-based drilling rig is assembled and set up for drilling, the drill rig floor including a V-door, the side of the drill rig floor having the V-door defining a V-door side of the drill rig floor, the V-door side of the drill rig floor parallel to the first substructure;

a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill rig floor, the mast being pivotably coupled to one or more of the first substructure, the second substructure, and the drill rig floor by a mast pivot point, the mast comprising a V-door side, the V-door side of the mast parallel to the first or second substructure;

a mast hydraulic lift cylinder coupled to the mast at a mast lift point; and

a choke manifold, the choke manifold positioned on the drill rig floor.