Key features of this powerful rig include a 35-foot mast and a versatile 3-speed tophead offering up to 7,200 ft-lbs of torque. It boasts a substantial 40,000 lbf holdback capacity and a 25,000 lbf pulldown, complemented by a 25,000 lbf hydraulic hoisting drum.
[pdf] This article lists the main components of a onshore . rigs have similar elements, but are configured with a number of different drilling systems to suit drilling in the marine environment. The equipment associated with a rig is to some extent dependent on the type of rig but typically includes at least some of the items listed below.
[pdf] Drilled shafts are high-capacity deep foundation systems, also known as drilled piers, caissons, bored piles, or cast-in-drilled-hole piles (CIDH). Drilled shafts for structural support can be installed by the dry (open hole), stabilizing polymer slurry, or steel-cased methods.
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