Patent ID: 9133643
Filing Date: 2015-09-15
Classification: E04H,E21B,Y10T

Abstract:
1. A drilling rig comprising: a base structure; a lifting device attached to the base structure; a rig floor comprising a derrick and drilling equipment disposed thereon; and a first box disposed between the base structure and the rig floor to support the rig floor, wherein the rig floor comprises a load point, the load point of the rig floor being axially aligned with the lifting device, and wherein the first box comprises a box load point, the box load point of the first box being moveable between a protruding position, in which the box load point extends from the first box and is axially aligned with the lifting device to enable the lifting device to lift the first box, and a collapsed position, in which the box load point is retracted into a body of the first box and is not axially aligned with the lifting device to enable the lifting device to lift the rig floor or another box.