Patent ID: 11933118
Assignee: NABORS DRILLING TECHNOLOGIES USA, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A method of building and using a land-based drilling rig, comprising:
placing a platform collapsed over a substructure over a proposed well drilling location, the platform having a rig floor;
building a high-capacity mast by attaching a mast bottom section to the platform at a pivot joint, attaching a mast lower intermediate section to the mast bottom section, attaching a mast upper intermediate section to the mast lower intermediate section, attaching a mast top section to the mast upper intermediate section, and attaching a first racking board to the upper intermediate section, the racking board being disposed 100 to 200 feet from a bottom of the mast bottom section, and wherein the mast bottom section, lower intermediate section, upper intermediate section, and top section together have an opening in a side thereof sized in a range of 145 to 250 feet;
raising the high-capacity mast from a horizontal condition to a vertical condition by pivoting the high-capacity mast about a pivot point on the platform; and
raising the platform from a collapsed condition to a raised condition over the substructure and securing the platform in the raised condition.