دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: Refers to the working board extended at drill floor, monkey board and derrick crown and the winter proofing board installed around the derrick mask.

n: The davit or assembly pulley fixed at crown.

n: a pole (usually single) with guy wires and used with block and tackle to hoist equipment. On a drilling rig, the gin pole is typically secured to the mast or derrick above the monkeyboard.

n: putted on derrick crown,used to install or disassemble herringbone of the crown block.

n: The barrier around the monkey board or derrick crown.