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