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US 9,926,719 B2Granted
Slingshot side saddle substructure
AssigneeNabors Drilling Technologies USA, Inc.
InventorsPadira Reddy, Ashish Gupta
Life of this patent
Estimating the term…
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.
Claims36
A land-based 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, the mast being pivotably coupled to one or more of the first substructure, the second substructure, and the drill floor by a pivot point;
- wherein the mast further comprises a V-door side and wherein the V-door side of the mast is parallel to the first or second substructure.
3 more elements
A land-based drilling rig comprising:
- a first and second lower box, the lower boxes positioned generally parallel and spaced apart from each other;
- a drill floor coupled to the first lower box by a first strut, the first lower box and first strut defining a first substructure, the drill floor coupled to the second lower box by a second strut, the second lower box and second strut defining a second substructure, the struts hingedly coupled to the drill floor and hingedly coupled to the corresponding lower box such that the drill floor may pivot between an upright and a lowered position, the drill floor including a V-door, the V-door oriented perpendicularly to a long axis of one of the substructures;
- a first and second raising hydraulic cylinder, the first and second raising hydraulic cylinders connected to the drill floor and the lower box;
- and
- a mast, the mast mechanically coupled to one or more of the first substructure, the second substructure, and the drill floor, the mast being pivotably coupled to one or more of the first substructure, the second substructure, and the drill floor by a pivot point.
2 more elements
Dependencies are inferred from the claim text.