Fast transportable drilling rig system

摘要

The present invention discloses a high-capacity drilling rig system that includes novel design features that alone and more particularly in combination facilitate a fast rig-up and rig-down with a single set of raising cylinders and maintains transportability features. In particular, a transport trailer is disclosed having a first support member and a drive member which align the lower mast portion with inclined rig floor ramps and translate the lower mast legs up the ramps and into alignment for connection. A pair of wing brackets is pivotally deployed from within the lower mast width for connection to the raising cylinder for raising the mast from a horizontal position into a vertical position. A cantilever is pivotally deployed from beneath the rig floor to a position above it for connection to the raising cylinder for raising the substructure from a collapsed position into the erect position.

主权项

1. A drilling rig assembly comprising:
a collapsible substructure movable between stowed and deployed positions, the collapsible substructure including:
a base box;a drill floor framework;a drill floor above the drill floor framework; anda plurality of legs having ends pivotally connected to the base box and drill floor framework, the legs supporting the drill floor above the base box in the deployed position; a mast having a lower mast section pivotally connected above the drill floor, and movable between a generally horizontal position to a position above the drill floor; a cantilever having a lower end and an upper end, the lower end being pivotally connected to the drill floor framework, the upper end movable between a stowed position below the drill floor and a deployed position above the drill floor; a raising cylinder pivotally connected at one end to the base box and having an opposite articulating end; the raising cylinder being selectively extendable relative to the pivotal connection at the base box; the articulating end of the raising cylinder connectable to the mast such that extension of the raising cylinder moves the mast from a generally horizontal position above the drill floor to a position above the drill floor; and, the articulating end of the raising cylinder connectable to the upper end of the cantilever such that extension of the raising cylinder raises the drilling substructure into the deployed position.