Matching Pairs Drilling RigOnline version Parts of drilling rig by Tatiana Yaikina 1 travelling block 2 crown block 3 derrick 4 draw works 5 kelly 6 mud pit 7 rotary drive A large structure standing on four legs and reaching the crown block. Steel tank used as a mud collector. A steel frame on beams at the top of the derrick. A steel frame with wheels which moves up or down in the derrick A hoisting mechanism which raises or lowers the drill pipe and drill bit. A steel pipe, located at the top of drill string. A machine used to impart rotational power to the drill string.
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