Drilling Rig
Drilling Rig is a structure and a package of various equipment used for drilling a well. Broad classification of a drilling rig is 'Land Rig' and 'Offshore Rig'. Offshore rigs are further classified based on their capacity to operate in certain water depths as 'Inland rig', 'Jack Up Rig', 'Drill Ship' and 'Semi-submersible rig'. Different parts of a drilling rig are derrick, substructure, engines, generator, drilling tubulars, hoisting equipment, pumps, steel tanks, solid control equipment etc.