Drilling assemblies

Abstract

A drilling assembly that can include a first mast, a second mast, a water table coupled between the first and second masts, and a plurality of sheaves coupled to the water table and adapted to translate along a plane oriented generally perpendicular to a height of at least one of the first or second mast. A drilling assembly that can include a mast having a generally C-shaped support structure, as viewed from a top view, and an opening disposed within the support structure, where the mast is disposed adjacent to a wellbore, and where the opening is adapted to permit passage of tubulars from an external position to the wellbore through the mast. A drilling assembly that can include a mast, a water table coupled to the mast, and a drawworks disposed adjacent to the mast, where the drawworks is adapted to laterally translate relative to the mast.

Dependencies are inferred from the claim text.