Side saddle traversable drilling rig
AssigneeNabors Drilling Technologies USA, Inc.
InventorsPadira REDDY, Denver LEE, Premkumar MONGATTIL
Life of this patent
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Abstract
A land-based drilling rig includes a drill rig floor and a subfloor, the subfloor supporting the drill rig floor. The land-based drilling rig also includes a plurality of substructure boxes, the substructure boxes supporting the subfloor, each substructure box including a lower substructure box and two upper substructure boxes, wherein there is a gap between the two upper substructure boxes. In addition, the land-based drilling rig further includes a mast, the mast mechanically coupled to the drill rig floor.
Claims24
A land-based drilling rig comprising:
- a drill rig floor;
- a subfloor, the subfloor supporting the drill rig floor;
- a plurality of substructure boxes, the substructure boxes supporting the subfloor, each substructure box including a lower substructure box and two upper substructure boxes, wherein there is a gap between the two upper substructure boxes;
- and
- a mast, the mast mechanically coupled to the drill rig floor.
A system comprising:
- a wellsite, the wellsite comprising a row of left well cellars and a row of right well cellars;
- a land-based drilling rig comprising:
- a drill rig floor;
- a subfloor, the subfloor supporting the drill rig floor, the subfloor comprising beams;
- a leftmost substructure box and a rightmost substructure box, the substructure boxes supporting the subfloor, each substructure box including a lower substructure box and two upper substructure boxes, wherein there is a gap between the two upper substructure boxes, the leftmost substructure box positioned to the left of a left cellar and the rightmost box positioned to the right of the right cellar, the rows of well cellars perpendicular to the beams;
- and
- a mast, the mast mechanically coupled to the drill rig floor.
A method for land-based drilling in a wellsite, the wellsite including a row of left well cellars and a row of right well cellars, the method comprising:
- supplying a land-based drilling rig comprising:
- a drill rig floor;
- a subfloor, the subfloor supporting the drill rig floor, the subfloor comprising beams;
- a leftmost substructure box and a rightmost substructure box, the substructure boxes supporting the subfloor, each substructure box including a lower substructure box and two upper substructure boxes, wherein there is a gap between the two upper substructure boxes, the leftmost substructure box positioned to the left of a left cellar from the row of left well cellars and the rightmost box positioned to the right of the right cellar of the row of right well cellars, the rows of well cellars perpendicular to the beams;
- and
- a mast, the mast mechanically coupled to the drill rig floor;
- traversing the drill rig floor atop the subfloor;
- and
- positioning the mast over the left well cellar or the right well cellar.
Dependencies are inferred from the claim text.