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