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AssigneeNational Oilwell Varco, L.P.
InventorsKameron Wayne Konduc, Randy Steven Stoik, Roman Konowalec, Jonathon Douglas Callaghan, Li Liu, David Frederick Chalus
Estimating the term…
A drilling rig having a detachable, modular cellar arranged beneath a drill floor of the drilling rig. The cellar may be or include a cellar trailer and may be configured to house drilling equipment, such as well head equipment, such as one or more blowout preventers. In some embodiments, the cellar trailer may provide work areas, such that the well head equipment may be prepared, tested, or generally operated within the cellar trailer. The cellar trailer may additionally be configured to provide stiffening support to the drill floor in order to mitigate deflection of the drill floor during drilling operations. The stiffening support may be provided by a shear wall extending from the cellar trailer. The cellar trailer may be towable. The cellar trailer may additionally be skiddable and/or walkable.
A modular drilling cellar trailer configured to be arranged beneath a drill floor of a drilling rig, the trailer comprising:
The cellar trailer of claim 2, wherein the housing comprises a plurality of substructure enclosures.
The cellar trailer of claim 5, wherein the bearing feet are inner bearing feet, and wherein the frame further comprises a pair of outer bearing feet.
The cellar trailer of claim 6, wherein the inner bearing feet are configured to engage a rail.
A drilling rig comprising:
A method of drilling, the method comprising:
Dependencies are inferred from the claim text.