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