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, comprising:
a collapsible substructure including:
a base box;a drill floor; and a pair of raising cylinders pivotally connected at one end to the base box and having an opposite articulating end; the raising cylinders being selectively extendable relative to the pivotal connection at the base box; a mast, the mast having a lower mast section comprising;
a mast framework comprising a plurality of cross-members, the mast framework defining a transportable width of the lower mast section;a plurality of legs, having an upper end attached to the mast framework, and an opposite lower end;a connection on the lower end of at least two legs for pivotally connecting the lower mast section to the drill floor; a pair of wing brackets movably secured to the lower mast section; the wing brackets being movable between a stowed position generally within the width of the lower mast section, and a deployed position extending beyond the width of the lower mast section; and, the raising cylinders connectable to the wing brackets and extendable to rotate the lower mast section from a generally horizontal position to a raised position above the drill floor.