دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a vessel above a datum line (usually ground level). elevator bails n pI: see elevator links. elevator links n pI: cylindrical bars that support the elevators and attach them to the hook. Also called elevator bails.

n: one of the tripping tools ,used to connect the casing hook or submember and the elevator

n: a steel projection on the drilling hook by means of which the elevator links are attached to the hook.

n: the lugs that extends for two sides of hook , it uses to hang the rings.